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Fieldbus Independent I/O Modules

Incremental Encoder Interfaces 750-637, (/xxx-xxx)

Manual

Version 1.4.0

ii • General

WAGO-I/O-SYSTEM 750 I/O Modules

Copyright 2008 by WAGO Kontakttechnik GmbH & Co. KG All rights reserved.

WAGO Kontakttechnik GmbH & Co. KG Hansastraße 27 D-32423 Minden

Phone: +49 (0) 571/8 87 – 0 Fax: +49 (0) 571/8 87 – 1 69

E-Mail: [email protected]

Web: http://www.wago.com

Technical Support Phone: +49 (0) 571/8 87 – 5 55 Fax: +49 (0) 571/8 87 – 85 55


Every conceivable measure has been taken to ensure the correctness and com-pleteness of this documentation. However, as errors can never be fully excluded, we would appreciate any information or ideas at any time.


We wish to point out that the software and hardware terms as well as the trademarks of companies used and/or mentioned in the present manual are generally trademark or patent protected.

mailto:[email protected]�

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Contents • iii


Contents

1 Important Notes .......................................................................................... 5 1.1 Legal Bases............................................................................................... 5 1.1.1 Copyright ............................................................................................. 5 1.1.2 Personnel Qualifications...................................................................... 5 1.1.3 Use of the 750 Series in Compliance with Underlying Provisions ..... 6 1.1.4 Technical Condition of Specified Devices .......................................... 6 1.2 Standards and Guidelines for Operating the 750 Series........................... 7 1.3 Symbols .................................................................................................... 8 1.4 Safety Information.................................................................................... 9 1.5 Font Conventions ................................................................................... 10 1.6 Number Notation.................................................................................... 10 1.7 Scope ........................................................................................................ 5

2 I/O Modules ............................................................................................... 11 2.1 Special Modules ..................................................................................... 11 2.1.1 Overview Incremental Encoder Interfaces 750-637, (/xxx-xxx)....... 11 2.1.2 750-637 [Inc.Enc./RS422/32Bit/Diff.] .............................................. 12 2.1.2.1 Variations...................................................................................... 12 2.1.2.2 View.............................................................................................. 12 2.1.2.3 Description.................................................................................... 12 2.1.2.4 Display Elements .......................................................................... 14 2.1.2.5 Schematic Diagram....................................................................... 14 2.1.2.6 Technical Data .............................................................................. 15 2.1.2.7 Functional Description.................................................................. 18 2.1.2.8 Process Image ............................................................................... 19 2.1.3 750-637/000-001 [Inc.Enc./24V/32Bit/Diff.].................................... 23 2.1.3.1 View.............................................................................................. 23 2.1.3.2 Description.................................................................................... 23 2.1.3.3 Display Elements .......................................................................... 25 2.1.3.4 Schematic Diagram....................................................................... 25 2.1.3.5 Technical Data .............................................................................. 26 2.1.3.6 Functional Description.................................................................. 28 2.1.3.7 Process Image ............................................................................... 29 2.1.4 750-637/000-002 [Inc.Enc./24V/32Bit/S.E.]..................................... 33 2.1.4.1 View.............................................................................................. 33 2.1.4.2 Description.................................................................................... 33 2.1.4.3 Display Elements .......................................................................... 35 2.1.4.4 Schematic Diagram....................................................................... 35 2.1.4.5 Technical Data .............................................................................. 36 2.1.4.6 Functional Description.................................................................. 38 2.1.4.7 Process Image ............................................................................... 39 2.1.5 750-637/000-004 [Inc.Enc./24V/32Bit/S.E./cam]............................. 43 2.1.5.1 View.............................................................................................. 43 2.1.5.2 Description.................................................................................... 43 2.1.5.3 Display Elements .......................................................................... 45 2.1.5.4 Schematic Diagram....................................................................... 45

iv • Contents


2.1.5.5 Technical Data .............................................................................. 46 2.1.5.6 Functional Description..................................................................47 2.1.5.7 Process Image ............................................................................... 49

3 Use in Hazardous Environments .............................................................54 3.1 Identification .......................................................................................... 55 3.1.1 For Europe according to CENELEC and IEC ...................................55 3.1.2 For America according to NEC 500 .................................................. 58 3.2 Installation Regulations.......................................................................... 59 3.2.1 Special Conditions for Safe Operation of the ATEX and IEC Ex (acc.

DEMKO 08 ATEX 142851X and IECEx PTB 07.0064).................. 60 3.2.2 Special conditions for safe use (ATEX Certificate TÜV 07 ATEX

554086 X) .......................................................................................... 61 3.2.3 Special conditions for safe use (IEC-Ex Certificate TUN 09.0001 X)62 3.2.4 ANSI/ISA 12.12.01 ........................................................................... 63

Important Notes • 5

Legal Bases


1 Important Notes

This section includes an overall summary of the most important safety requirements and notes that are mentioned in each individual section. To protect your health and prevent damage to devices as well, it is imperative to read and carefully follow the safety guidelines.

1.1 Legal Bases

1.1.1 Copyright

This Manual, including all figures and illustrations, is copyright-protected. Any further use of this Manual by third parties that violate pertinent copyright provisions is prohibited. Reproduction, translation, electronic and phototechnical filing/archiving (e.g., photocopying) as well as any amendments require the written consent of WAGO Kontakttechnik GmbH & Co. KG, Minden, Germany. Non-observance will involve the right to assert damage claims.

WAGO Kontakttechnik GmbH & Co. KG reserves the right to provide for any alterations or modifications that serve to increase the efficiency of technical progress. WAGO Kontakttechnik GmbH & Co. KG owns all rights arising from the granting of patents or from the legal protection of utility patents. Third-party products are always mentioned without any reference to patent rights. Thus, the existence of such rights cannot be excluded.

1.1.2 Personnel Qualifications

The use of the product described in this Manual requires special personnel qualifications, as shown in the following table:

Activity Electrical specialist Instructed personnel*)

Specialists**) having qualifications in PLC programming

Assembly X X

Commissioning X X

Programming X

Maintenance X X

Troubleshooting X

Disassembly X X

*) Instructed persons have been trained by qualified personnel or electrical specialists.

**) A specialist is a person, who – thanks to technical training – has the qualification, know- ledge and expertise to meet the required specifications of this work and to identify any po- tential hazardous situation in the above listed fields of activity.

6 • Important Notes

Legal Bases


All responsible persons have to familiarize themselves with the underlying legal standards to be applied. WAGO Kontakttechnik GmbH & Co. KG does not assume any liability whatsoever resulting from improper handling and damage incurred to both WAGO´s own and third-party products by disregarding detailed information in this Manual.

1.1.3 Use of the 750 Series in Compliance with Underlying Provisions

Couplers, controllers and I/O modules found in the modular WAGO-I/O-SYSTEM 750 receive digital and analog signals from sensors and transmit them to the actuators or higher-level control systems. Using programmable controllers, the signals can also be (pre-)processed.

The components have been developed for use in an environment that meets the IP20 protection class criteria. Protection against finger injury and solid impurities up to 12.5 mm diameter is assured; protection against water damage is not ensured. Unless otherwise specified, operation of the components in wet and dusty environments is prohibited.

1.1.4 Technical Condition of Specified Devices

The components to be supplied Ex Works, are equipped with hardware and software configurations, which meet the individual application requirements. Changes in hardware, software and firmware are permitted exclusively within the framework of the various alternatives that are documented in the specific manuals. WAGO Kontakttechnik GmbH & Co. KG will be exempted from any liability in case of changes in hardware or software as well as to non-compliant usage of components.

Please send your request for modified and new hardware or software configurations directly to WAGO Kontakttechnik GmbH & Co. KG.


Standards and Guidelines for Operating the 750 Series


1.2 Standards and Guidelines for Operating the 750 Series

Please adhere to the standards and guidelines required for the use of your system:

The data and power lines shall be connected and installed in compliance with the standards required to avoid failures on your system and to substantially minimize any imminently hazardous situations resulting in personal injury.

For assembly, start-up, maintenance and troubleshooting, adhere to the specific accident prevention provisions which apply to your system (e.g. BGV A 3, "Electrical Installations and Equipment").

Emergency stop functions and equipment shall not be made ineffective. See relevant standards (e.g. DIN EN 418).

The equipment of your system shall be conform to EMC guidelines so that any electromagnetic interferences will be eliminated.

Operating 750 Series components in home applications without further measures is permitted only if they meet the emission limits (emissions of interference) in compliance with EN 61000-6-3. You will find the detailed information in section "WAGO-I/O-SYSTEM 750" "System Description" "Technical Data".

Please observe the safety precautions against electrostatic discharge in accordance with DIN EN 61340-5-1/-3. When handling the modules, please ensure that environmental factors (persons, working place and packaging) are well grounded.

The valid standards and guidelines applicable for the installation of switch cabinets shall be adhered to.


Symbols


1.3 Symbols

Danger Always observe this information to protect persons from injury.

Warning Always observe this information to prevent damage to the device.

Attention Marginal conditions that must always be observed to ensure smooth and efficient operation.

ESD (Electrostatic Discharge) Warning of damage to the components through electrostatic discharge. Observe the precautionary measure for handling components at risk of electrostatic discharge.

Note Make important notes that are to be complied with so that a trouble-free and efficient device operation can be guaranteed.

Additional Information References to additional literature, manuals, data sheets and internet pages.


Safety Information


1.4 Safety Information

When connecting the device to your installation and during operation, the following safety notes must be observed:

Danger The WAGO-I/O-SYSTEM 750 and its components are an open system. It must only be assembled in housings, cabinets or in electrical operation rooms. Access is only permitted via a key or tool to authorized qualified personnel.

Danger All power sources to the device must always be switched off before carrying out any installation, repair or maintenance work.

Warning Replace defective or damaged device/module (e.g. in the event of deformed contacts), as the functionality of field bus station in question can no longer be ensured on a long-term basis.

Warning The components are not resistant against materials having seeping and insulating properties. Belonging to this group of materials is: e.g. aerosols, silicones, triglycerides (found in some hand creams). If it cannot be ruled out that these materials appear in the component environment, then the components must be installed in an enclosure that is resistant against the above mentioned materials. Clean tools and materials are generally required to operate the device/module.

Warning Soiled contacts must be cleaned using oil-free compressed air or with ethyl alcohol and leather cloths.

Warning Do not use contact sprays, which could possibly impair the functioning of the contact area.

Warning Avoid reverse polarity of data and power lines, as this may damage the devices.

ESD (Electrostatic Discharge) The devices are equipped with electronic components that may be destroyed by electrostatic discharge when touched.


Font Conventions


Warning For components with ETHERNET/RJ-45 connectors: Only for use in LAN, not for connection to telecommunication circuits.

1.5 Font Conventions

italic Names of paths and data files are marked in italic-type. e.g.: C:\Programs\WAGO-IO-CHECK

italic Menu items are marked in italic-type, bold letters. e.g.: Save

\ A backslash between two names characterizes the selection of a menu point from a menu. e.g.: File \ New

END Pushbuttons are marked as bold with small capitals e.g.: ENTER

< > Keys are marked bold within angle brackets e.g.: <F5>

Courier The print font for program codes is Courier. e.g.: END_VAR

1.6 Number Notation

Number code Example Note

Decimal 100 Normal notation

Hexadecimal 0x64 C notation

Binary '100' '0110.0100'

In quotation marks, nibble separated with dots (.)

1.7 Scope

This manual describes the special modules 750-637, (/xxx-xxx) Incremental Encoder Interfaces of the modular WAGO-I/O-SYSTEM 750.

Handling, assembly and start-up are described in the manual of the Fieldbus Coupler. Therefore this documentation is valid only in the connection with the appropriate manual

Overview Incremental Encoder Interfaces 750-637, (/xxx-xxx) • 11


2 I/O Modules

2.1 Special Modules

2.1.1 Overview Incremental Encoder Interfaces 750-637, (/xxx-xxx)

I/O Module 750-637 750-637/ 000-001

750-637/ 000-002

750-637/ 000-003

750-637/ 000-004

Function Incremental Encoder Interface

Incremental Encoder Interface




Input differential differential single ended

differential differential

Sensor Operation Voltage

DC 5 V DC 24 V DC 24 V DC 5 V DC 5 V

Interpretation fourfold fourfold fourfold single single

Bit Width 32 Bit 32 Bit 32 Bit 32 Bit 32 Bit

12 • 750-637 [Inc.Enc./RS422/32Bit/Diff.]

Variations


2.1.2 750-637 [Inc.Enc./RS422/32Bit/Diff.]

Incremental encoder interface RS422 / 32 bit / differential

2.1.2.1 Variations

Item-No. Designation Description

750-637 Inc.Enc./RS422/32Bit/ Diff.

Incremental Encoder Interface RS422 / 32 Bit / differential / fourfold interpretation

750-637/000-003 Inc.Enc./RS422/32Bit/ Diff./Single Interpret.

Incremental Encoder Interface RS422 / 32 Bit / differential / single interpretation

2.1.2.2 View

+ -

L G

R S

15 16

C

D

B

A

C C

Ue Uo

13 14

C

D

B

A

750-637

B B

A A

N1 N2

C

AB

Latch

A

A

B

B

C

C

5V0V

GateLatch

N 2N 1

0V24V

N 1N 2GateRef

Ref

Data contacts

Shield (screen)Sensor supply

Fig. 2.1.2-1: View g063700e

2.1.2.3 Description

The I/O module 750-637 represents an interface for any type of incremental encoder with an RS 422 connection.

The data width of the encoder module is 32 bits. Either the current counter reading, the latch value, the set value or the current speed can be mapped into the process data.

750-637 [Inc.Enc./RS422/32Bit/Diff.] • 13

Description


Inputs/Outputs

A, /A, B, /B Quadrature input, RS 422

C, /C Zero reference input, RS 422

Latch, Gate, Ref Input, 24 V

N1, N2 Output, 24 V

A counter with quadrature decoder and a latch for the zero pulse can be read and activated by the PLC. The PLC is able to set the counter. Depending on the operating mode, the counter reading is taken into the latch register, if the edge at input “C” or “Latch” is positive.

The speed (increments/ms) is automatically recorded and can be transmitted as an alternative to the latch value.

The „Gate” input allows to lock the counter. The „Ref” input can be set to activate the zero mark „C”.

The cam outputs N1 and N2 indicate whether the counter value is within a defined range of values. The range can be adjusted for each cam via the PLC. Starting with the software version XXXX03XX, the cam outputs can be disabled by the PLC and the states of the cam outputs can be queried.

24 V DC is required to supply the I/O modules, from this voltage also the voltage supply to the encoder (Ue, U0) is branched/tapped.

Attention This module has no power contacts. For field supply to downstream I/O modules, a supply module will be needed.

The shield (screen) is directly connected to the carrier rail.

The module 750-637 can be used with all couplers/controllers of the WAGO-I/O-SYSTEM 750 (except for the economy types 750-320, -323, -324 and -327).

The version of both hardware and software that are valid for this module is specified in the manufacturing number, which is part of the lateral marking on the module.


Display Elements


2.1.2.4 Display Elements

LED Designation Status Function

off U(A) - U(/A) < -0,2 V

A1 A green U(A) - U(/A) > 0,2 V or both inputs open

off U(C) - U(/C) < -0,2 V

B1 C green U(C) - U(/C) > 0,2 V or both inputs open

off U(B) - U(/B) < -0,2 V

C1 B green U(B) - U(/B) > 0,2 V or both inputs open

off Input = 0 V or open D1 Latch

green Input = 24 V

off Input = 0 V or open A2 Gate

green Input = 24 V

off Output = 0 V B2 N1

green Output = 24 V

off Input = 0 V or open C2 Ref

green Input = 24 V

off Output = 0 V

15 16

C

D

B

A

13 14

C

D

B

A

B1

A1C1

D1

B2

A2C2

D2

Fig. 2.1.2-2: Display elements g063702x

D2 N2 green Output = 24 V

2.1.2.5 Schematic Diagram

24V/0V A B C

N1/N2

Ve/V0

N1/N2

Latch/Gate

N1/N2

Gate/Ref

DC

DC

Logic

A/A_

B/B_

C/C_

Ref/Shield(screen)

Latch

A B C

U0

Ue

_ _ _

Gate/Ref

A,B,C

0V

24V

Latch

Shield(screen)

1

2

3

4

5

6

7

8

750-637

1

2

3

4

5

6

7

8

DC

DC

Fig. 2.1.2-2: Schematic Diagram g063701e


Technical Data


2.1.2.6 Technical Data

Module specific Data

Sensor connection A, /A, B, /B, C, /C (/A, /B, /C are inversed)

Current consumption (internal) 110 mA

Counter 32 bits binary

Operation Mode Capture 32 bits

Operation Mode Preload 32 bits

Quadrature decoder fourfold interpretation (750-637) single interpretation (750-637/000-003)

Zero impulse latch 32 bits

Commands read, write, activate

Velocity 16 Bit (increments per 1ms)

Max. operating frequency 250 kHz

Time constant input LATCH 364 µs

Time constant input GATE 32 µs

Time constant input REF 32 µs

Power supply DC 24 V (- 15 % ... + 20 %)

Current consumption (24 V) 12 mA (without sensor and without load)

Sensor Operation voltage DC 5 V

Sensor Output current max 300 mA

Internal bit width 1 x 32 bits data 2 x 8 bits control / status

Dimensions W x H* x L * from upper edge of DIN 35 rail

24 mm x 64 mm x 100 mm

Weight ca. 105 g

Digital Outputs (N1, N2)

Output voltage DC 24 V

Output current max. 0,5 A short-circuit-protected

Output resistance typ. 160 m

Digital Inputs (Latch, Gate, Ref)

Input voltage (0) DC –3 V ... +5 V (1) DC +15 V ... +30 V

Input current typ. Latch: 5 mA Gate and Ref: 7 mA


Technical Data


Quadrature Inputs (A, /A, B, /B, C, /C)

Input voltage A, /A (0) U(A) - U(/A) < -0,2 V (1) U(A) - U(/A) > 0,2 V

Input voltage B, /B (0) U(B) - U(/B) < -0,2 V (1) U(B) - U(/B) > 0,2 V

Input voltage C, /C (0) U(C) - U(/C) < -0,2 V (1) U(C) - U(/C) > 0,2 V

Standards and Regulations (cf. Chapter 2.2 of the Coupler/Controller Manual)

EMC-Immunity to interference (CE) acc. to EN 50082-2 (96)

EMC-Emission of interference (CE) acc. to EN 50081-1 (93)

Approvals (cf. Chapter 2.2 of the Coupler/Controller Manual)

Conformity Marking

CULUS (UL508)

The following Ex approvals have been granted to the basic version of 750-637 I/O modules:

TÜV (07 ATEX 554086 X)

I M2 Ex d I II 3 G Ex nA IIC T4 II 3 D Ex tD A22 IP6X T135°C

Permissible operation temperature: 0 °C ≤ TA ≤ +60 °C

TÜV (TUN 09.0001X) Ex d I Ex nA IIC T4 Ex tD A22 IP6X T135°C


CULUS (ANSI/ISA 12.12.01) Class I Div2 ABCD T4

UCIEE BR-Ex nA II T4

The following Ex approvals have been granted to the variation 750-637/000-003:

DEMKO (08 ATEX 142851X) I M2/ II 3 GD Ex nA IIC T4


More Information Detailed references to the approvals are listed in the document "Overview Approvals WAGO-I/O-SYSTEM 750", which You can find on the CD ROM ELECTRONICC Tools and Docs (Item-No.: 0888-0412/…) or in the Internet under: http://www.wago.com Service Downloads Documentation WAGO-I/O-SYSTEM 750 System Description.



Technical Data


Further „General Technical Data“ for the WAGO-I/O-SYSTEM 750 is available in the specific fieldbus coupler / controller manuals.


Functional Description


2.1.2.7 Functional Description

Typically, incremental encoders supply two output signals of the encoder track, both 90° offset. These signals are designated A and B. To improve the common mode interference suppression, both signals are transmitted as differential signals. In additional to the A signal, also the inverted /A level is transmitted. The difference of the input signals is evaluated in the incremental encoder I/O module. The phase position changes from A to B by changing A and /A. In this manner, it is possible to pre-define the desired counting direction by wiring.

Usually, incremental encoders have an index track in addition to the two track signals. This index track only produces one pulse per one full encoder revolution. This pulse and the counter reading can be used to determine the absolute encoder position during rotation. The index pulse has a duration of a track position pulse. We recommend to always have the latch process performed in the same rotational direction.

Input Function

A, /A, B, /B Quadrature input, RS 422 Increment pulse signal channel A or B of the Incremental Encoder

C, /C Zero reference input, RS 422 Incremental encoder index pulse Dependent on the operating mode, the counter reading is taken over into the latch register or the counter showing the set value is additionally loaded, if the input edge is positive.

LATCH LATCH input 24 V Dependent on the operating mode, the counter reading is taken into the latch register or the counter showing the set value is additionally loaded, if the input edge is positive.

GATE GATE input, 24 V The counting process is locked if 24 V is applied to input GATE.

REF REF input, 24 V During a reference run, the index pulse is only evaluated in conjunction with an additional sensor signal (Ref).

Screen (Shield) Connection for the encoder line screen The screen connection is directly routed to the carrier rail.

Ue (+5V) 5 V supply output for the sensor

U0 (0V) Ground for the sensor signal and supply, internally connected with 0 V

+24V 24 V supply voltage for the module

0V Ground for the 24 V supply voltage, internally connected with U0.

Output Function

N1, N2 Cam output, 24 V, 0.5 A "1" - Counter value is within of the defined range "0" - Counter value is outside of the defined range


Process Image


2.1.2.8 Process Image

Using the I/O module 750-637, a 6 byte input and output process image can be transferred to the fieldbus coupler / controller via two logical channels.

The set values are stored in 4 output bytes (D0, D1, D2, D3) and the process data are stored in 4 input bytes (D0, D1, D2, D3). Two control bytes (C0, C1) and two status bytes (S0, S1) are used to select process data and set values as well as to control the data flow.

Attention The representation of the process data of some I/O modules or their variations in the process image depends on the fieldbus coupler/-controller used. Please take this information as well as the particular design of the respective control/status bytes from the section "Fieldbus Specific Design of the Process Data" included in the description concerning the process image of the corresponding coupler/controller.

Input data Output data

S0 Status byte S0 C0 Control byte C0

D0 Process data byte 0 (LSB) D0 Set value byte 0 (LSB)

D1 Process data byte 1 D1 Set value byte 1



D3 Process data byte 3 (MSB) D3 Set value byte 3 (MSB)

Bit 0 and bit 1 in the control byte C1 determines the process data.

Counter value Latch value Velocity Set value The setting is mirrored in status byte S1 in bit 0 and bit 1.

MapPZD (Control Byte C1 / Status Byte S1, Bit 0 and 1)

Bit 1 Bit 0 Coding of the Process data

0 0 Counter value

0 1 Latch value

1 0 Velocity (Increments per milliseconds)

1 1 Set value


Process Image


Status Byte S0

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

0 X AckSetLoadExt

OVER-FLOW

UNDER-FLOW

CNT_ SET_ ACK

LAT_ EXT_ VAL

LATC_VAL

LATC_ VAL

Acknowledge bit for EN_LATC (C0.0). Latch Mode: This bit is set with a positive edge at input C. It is reset when EN_LATC is reset. Preload Mode: This bit is set with a positive edge at C. It is reset when EN_LATC is reset.

LAT_ EXT_ VAL

Acknowledge bit for EN_LAT_EXT (C0.1). Latch Mode: This bit is set with a positive edge at the input Latch.

It is reset when EN_LAT_EXT is reset. Preload Mode: This bit is set with a positive edge at the input Latch.

It is reset when EN_LAT_EXT is reset.

CNT_ SET_ ACK

Acknowledge bit for CNT_SET (C0.2). Reset if CNT_SET=0

UNDER- FLOW

UNDERFLOW=1 with a counter overflow of 0x00000000 to 0xffffffff UNDERFLOW=0 if counter < 0xAAAAAAAA UNDERFLOW=0 if positive edge ResetUnderflow (C1.3) UNDERFLOW=0 if OVERFLOW=1

OVER- FLOW

OVERFLOW=1 with a counter overflow of 0xffffffff to 0x00000000 OVERFLOW=0 if counter > 0x55555555 OVERFLOW=0 if positive edge ResetOverflow (C1.4) OVERFLOW=0 if UNDERFLOW=1

AckSet LoadExt

Acknowledge bit for SetLoadExt.

Reset if SetLoadExt=0 (C0.5)

X reserved

0 reserved

Status Byte S1


0 0 N2 N1 StaN2 StaN1 MapPZD MapPZD

MapPZD Software version < XXXX03XX: reserved / not used (0)

software version ≥ XXXX03XX: coding of process data (2 Bits)

StaN2 Software version < XXXX03XX: reserved / not used (0)

software version ≥ XXXX03XX: state of cam output 1: 0 = cam output 1 reset, 1 = cam output 1 set

StaN1 Software version < XXXX03XX: reserved / not used (0)

software version ≥ XXXX03XX: state of cam output 2: 0 = cam output 2 reset, 1 = cam output 2 set

N1 Cam window 1st bit is set, if:

bottom comparative value N1 ≤ counter reading ≤ top comparative value N1

N2 Cam window 2nd bit is set, if:

bottom comparative value N2 ≤ counter reading ≤ top comparative value N2

0 reserved


Process Image


Control Byte C0


0 OpMode SetLoadExt

Reset Overflow

Reset Under-

flow

CNT_ SET

EN_ LAT_ EXT

EN_ LATC

EN_ LATC

The encoder zero mark is released.

Capture Mode: With a positive edge at input C the counter reading is transferred to the latch register.

Preload Mode: With a positive edge at input C the counter reading is transferred to the latch register . The counter is loaded with the set value.

The confirmation is de-selected for the negative edge of EN_LATC.

EN_LATC is dominant against EN_LAT_EXT.

EN_ LAT_ EXT

The external latch input is released.

Capture Mode: With a positive edge at the input LATCH, the counter reading is transferred to the latch register.

Preload Mode: With a positive edge at the input LATCH, the counter reading is transferred to the Latch register. The counter is loaded with the set value. The confirmation is de-selected for the negative edge of EN_LAT_EXT.

CNT_ SET With a positive edge, the counter is initialized on the set value.

Reset Underflow With a positive edge the status bit UNDERFLOW (S0.3) is reset.

Reset Overflow With a positive edge the status bit OVERFLOW (S0.4) is reset.

SetLoad Ext

With a positive edge, the set value to which the counter is to be set in the case of an external event, will be transferred to the process data.

OpMode 0=Capture Mode The counter is latched by a trigger signal

1=Preload Mode The counter is latched by a trigger signal. Subsequently, the counter is loaded with the set value.

0 reserved


Process Image


Control Byte C1


0 Enable Ref

Set Nocke2

Set Nocke1

Dis Nocke2

Dis Nocke1

MapPZD MapPZD

MapPZD Coding of Process data (2 bits)

DisNocke1 Software version < XXXX03XX: reserved / not used (0)

software version ≥ XXXX03XX: disable cam output 1: 0 = cam output 1 enabled, 1 = cam output 1 disabled

DisNocke2 Software version < XXXX03XX: reserved / not used (0)

software version ≥ XXXX03XX: disable cam output 2: 0 = cam output 2 enabled, 1 = cam output 2 disabled

SetNocke1 With a positive edge, the set value is taken over as the bottom comparative value for output 1 (N1).

With a negative edge, the set value is taken over as the top comparative value for output 1 (N1).

SetNocke2 With a positive edge, the set value is taken over as bottom comparative value for output 2 (N2).

With a negative edge, the set value is taken over as top comparative value for output 2 (N2).

EnableRef Input REF released.

- The controls set Bit EnableRef

- The controls must release EN_LATC (C1.0) or EN_LAT_EXT (C1.1) with a positive edge

- A positive edge is created at input REF

- Subsequently, the next positive edge at input C or input Latch leads to a Capture or Preload event

0 reserved

750-637/000-001 [Inc.Enc./24V/32Bit/Diff.] • 23

View


750-637/000-001 [Inc.Enc./24V/32Bit/Diff.]

Incremental encoder interface 24 V / 32 bit / differential

View

+ -

L G

R S

15 16

C

D

B

A

C C

13 14

C

D

B

A

750-637/000-001

B B

A A

N1 N2

C

AB

Latch

A

A

B

B

C

C GateLatch

N 2N 1

0V24V

N 1N 2GateRef

Ref

Data contacts

Shield (screen)

Fig. 0-1: View g063710e

Description

The I/O module 750-637/000-001 represents an interface for any type of incremental encoder with an differential 24 V connection.


Inputs/Outputs

A, /A, B, /B Quadrature input, 24 V, differential

C, /C Zero reference input, 24 V, differential


N1, N2 Output, 24 V



24 • 750-637/000-001 [Inc.Enc./24V/32Bit/Diff.]

Description



The I/O module signals whether the counter reading is within the defined set points by using the cam outputs (N1, N2). The set points can be individually set.

The I/O module requires 24 VDC power supply. The sensor is fed with an external power supply. The sensor ground must be connected to the 0V terminal of the module.



The module 750-637/000-001 can be used with all couplers/controllers of the WAGO-I/O-SYSTEM 750 (except for the economy types 750-320, -323, -324 and -327).

This description is valid for the XXXX0301... hardware and software version. The version is specified in the manufacturing number, which is part of the lateral marking on the module.

750-637/000-001 [Inc.Enc./24V/32Bit/Diff.] • 25

Display Elements


Display Elements


off -30 V < (U(A) - U(/A)) < -15 V A1

green A

on 30 V > (U(A) - U(/A)) > 15 V or both inputs open

off -30 V < (U(C) - U(/C)) < -15 VB1 green

C on

30 V > (U(C) - U(/C)) > 15 V or both inputs open

off -30 V < (U(B) - U(/B)) < -15 VC1 green

B on

30 V > (U(B) - U(/B)) > 15 V or both inputs open

off Input = 0 V or open D1 green

Latch on Input = 24 V

off Input = 0 V or open A2 green

Gate on Input = 24 V

off Output = 0 V B2 green

N1 on Output = 24 V

off Input = 0 V or open C2 green

Ref on Input = 24 V

off Output = 0 V

15 16

C

D

B

A

13 14

C

D

B

A

B1

A1C1

D1

B2

A2C2

D2

Fig. 0-2: Display elements g063702x

D2 green

N2 on Output = 24 V

Schematic Diagram

24V/0V A B C

N1/N2

N1/N2

Latch/Gate

N1/N2

Gate/Ref

DC

DC

Logic

A/A_

B/B_

C/C_

Ref/Shield(screen)

Latch

A B C_ _ _

Gate/Ref

A,B,C

0V

24V

Latch

Shield(screen)

1

2

3

4

5

6

7

8

750-637/000-001

1

2

3

4

5

6

7

8

Fig. 0-2: Schematic Diagram g063711e

26 • 750-637/000-001 [Inc.Enc./24V/32Bit/Diff.]

Technical Data


Technical Data


Sensor connection A, /A, B, /B, C, /C (/A, /B, /C are inversed)





Quadrature decoder 4-fold interpretation



Velocity 16 Bit (increments per 1ms)





Power supply DC 24 V (- 15 % ... + 20 %)




Internal bit width 1 x 32 bits data 2 x 8 bits control / status


24 mm x 64 mm x 100 mm

Weight ca. 105 g




Output resistance typ. 160 m





Input voltage A, /A (0) DC -30 V < (U(A) - U(/A)) < DC -15 V (1) DC +30 V > (U(A) - U(/A)) > DC +15 V

Input voltage B, /B (0) DC -30 V < (U(B) - U(/B)) < DC -15 V (1) DC +30 V > (U(B) - U(/B)) > DC +15 V

Input voltage C, /C (0) DC -30 V < (U(C) - U(/C)) < DC -15 V (1) DC +30 V > (U(C) - U(/C)) > DC +15 V

750-637/000-001 [Inc.Enc./24V/32Bit/Diff.] • 27

Technical Data






Conformity Marking

CULUS (UL508)

TÜV (07 ATEX 554086 X) I M2 Ex d I II 3 G Ex nA IIC T4 II 3 D Ex tD A22 IP6X T135°C


TÜV (TUN 09.0001X) Ex d I Ex nA IIC T4 Ex tD A22 IP6X T135°C

Permissible operation temperature:0 °C ≤ TA ≤ +60 °C





28 • 750-637/000-001 [Inc.Enc./24V/32Bit/Diff.]




Typically, incremental encoders supply two output signals of the encoder track, both 90° offset. These signals are designated A and B. To improve the common mode interference suppression, both signals are transmitted as differential signals. In additional to the A signal, also the inverted /A level is transmitted. The difference of the input signals is evaluated in the incremental encoder I/O module. The phase position changes from A to B by changing A and /A. In this manner, it is possible to pre-define the desired counting direction by wiring.

Usually, incremental encoders have an index track in addition to the two track signals. This index track only produces one pulse per one full encoder revolu-tion. This pulse and the counter reading can be used to determine the absolute encoder position during rotation. The index pulse has a duration of a track po-sition pulse. We recommend to always have the latch process performed in the same rotational direction.

Input Function

A, /A, B, /B Quadrature input, 24 V, differential Increment pulse signal channel A or B of the Incremental Encoder

C, /C Zero reference input, 24 V, differential Incremental encoder index pulse Dependent on the operating mode, the counter reading is taken over into the latch register or the counter showing the set value is additionally loaded, if the input edge is positive.






0V Ground for the 24 V supply voltage

Output Function


750-637/000-001 [Inc.Enc./24V/32Bit/Diff.] • 29

Process Image


Process Image

Using the I/O module 750-637/000-001, a 6 byte input and output process image can be transferred to the fieldbus coupler / controller via two logical channels.











Counter value Latch value Velocity Set value

The setting is mirrored in status byte S1 in bit 0 and bit 1.



0 0 Counter value

0 1 Latch value


1 1 Set value

30 • 750-637/000-001 [Inc.Enc./24V/32Bit/Diff.]

Process Image


Status Byte S0


0 X AckSetLoadExt

OVER-FLOW

UNDER-FLOW

CNT_ SET_ ACK

LAT_ EXT_ VAL

LATC_VAL

LATC_ VAL


LAT_ EXT_ VAL




CNT_ SET_ ACK


UNDER- FLOW


OVER- FLOW


AckSet LoadExt



X reserved

0 reserved

Status Byte S1



MapPZD Coding of process data (2 Bits)

StaN2 State of cam output 1: 0 = cam output 1 reset, 1 = cam output 1 set



bottom comparative value N1 <= Counter reading <= top comparative value N1



0 reserved

750-637/000-001 [Inc.Enc./24V/32Bit/Diff.] • 31

Process Image


Control Byte C0


0 OpMode SetLoadExt

Reset Overflow

Reset Under-

flow

CNT_ SET

EN_ LAT_ EXT

EN_ LATC

EN_ LATC






EN_ LAT_ EXT







SetLoad Ext



1=Preload Mode The counter is latched by a trigger signal.

Subsequently, the counter is loaded with the set value.

0 reserved

32 • 750-637/000-001 [Inc.Enc./24V/32Bit/Diff.]

Process Image


Control Byte C1


0 Enable Ref

Set Nocke2

Set Nocke1

Dis Nocke2

Dis Nocke1

MapPZD MapPZD


DisNocke1 Disable cam output 1: 0 = cam output 1 enabled, 1 = cam output 1 disabled











0 reserved

750-637/000-002 [Inc.Enc./24V/32Bit/S.E.] • 33

View


2.1.3 750-637/000-002 [Inc.Enc./24V/32Bit/S.E.]

Incremental encoder interface 24 V / 32 bit / single ended

2.1.3.1 View

+ -

L G

R S

15 16

C

D

B

A

C

13 14

C

D

B

A

750-637/000-002

B

A

N1 N2

C

AB

Latch

A

B

C GateLatch

N 2N 1

0V24V

N 1N 2GateRef

Ref

Data contacts

Shield (screen)

Fig. 2.1.3-1: View g063720e

2.1.3.2 Description

The I/O module 750-637/000-002 represents an interface for any type of incremental encoder with an single ended 24 V connection.


Inputs/Outputs

A, B Quadrature input, 24 V, single ended

C Zero reference input, 24 V, single ended


N1, N2 Output, 24 V



34 • 750-637/000-002 [Inc.Enc./24V/32Bit/S.E.]

Description









750-637/000-002 [Inc.Enc./24V/32Bit/S.E.] • 35

Display Elements




off 0 V < U(A) < 5 V or input open A1

green A

on 30 V > U(A) > 15 V

off 0 V < U(C) < 5 V or input open B1

green C

on 30 V > U(C) > 15 V

off 0 V < U(B) < 5 V or input open C1

green B

on 30 V > U(B) > 15 V

off Input = 0 V or open D1 green

Latch on Input = 24 V

off Input = 0 V or open A2 green

Gate on Input = 24 V

off Output = 0 V B2 green

N1 on Output = 24 V

off Input = 0 V or open C2 green

Ref on Input = 24 V

off Output = 0 V

15 16

C

D

B

A

13 14

C

D

B

A

B1

A1C1

D1

B2

A2C2

D2


D2 green

N2 on Output = 24 V


24V/0V A B C

N1/N2

N1/N2

Latch/Gate

N1/N2

Gate/Ref

DC

DC

Logic

A

B

C

Ref/Shield(screen)

Latch

Gate/Ref

A,B,C

0V

24V

Latch

Shield(screen)

1

2

3

4

5

6

7

8

750-637/000-002

1

2

3

4

5

6

7

8


36 • 750-637/000-002 [Inc.Enc./24V/32Bit/S.E.]

Technical Data




Sensor connection A, B, C, 0 V





Quadrature decoder 4-fold report



Velocity 16 Bit (Increments per 1ms)





Power supply DC 24 V (- 15 % ... + 20 %)




Internal bit width 1 x 32 bits data 2 x 8 bits control/status


24 mm x 64 mm x 100 mm

Weight ca. 105 g




Output resistancetyp. 160 m





Input voltage A, /A (0) DC 0 V < U(A) < DC 5 V (1) DC 30 V > U(A) > DC 15 V

Input voltage B, /B (0) DC 0 V < U(B) < DC 5 V (1) DC 30 V > U(B) > DC 15 V

Input voltage C, /C (0) DC 0 V < U(C) < DC 5 V (1) DC 30 V > U(B) > DC 15 V

750-637/000-002 [Inc.Enc./24V/32Bit/S.E.] • 37

Technical Data






Conformity Marking

CULUS (UL508)


CULUS (ANSI/ISA 12.12.01) Class I Div2 ABCD T4A




38 • 750-637/000-002 [Inc.Enc./24V/32Bit/S.E.]




Typically, incremental encoders supply two output signals of the encoder track, both 90° offset. These signals are designated A and B. The difference of the input signals is evaluated in the incremental encoder I/O module.


Input Function

A, B Quadrature input, 24 V, single ended Increment pulse signal channel A or B of the Incremental Encoder

C Zero reference input, 24 V, single ended Incremental encoder index pulse Dependent on the operating mode, the counter reading is taken over into the latch register or the counter showing the set value is additionally loaded, if the input edge is positive.







Output Function


750-637/000-002 [Inc.Enc./24V/32Bit/S.E.] • 39

Process Image














Counter value Latch value Velocity

Set value




0 0 Counter value

0 1 Latch value


1 1 Set value

40 • 750-637/000-002 [Inc.Enc./24V/32Bit/S.E.]

Process Image


Status Byte S0


0 X AckSetLoadExt

OVER-FLOW

UNDER-FLOW

CNT_ SET_ ACK

LAT_ EXT_ VAL

LATC_VAL

LATC_ VAL


LAT_ EXT_ VAL




CNT_ SET_ ACK


UNDER- FLOW


OVER- FLOW


AckSet LoadExt



X reserved

0 reserved

Status Byte S1



MapPZD Coding of process data (2 Bits)







0 reserved

750-637/000-002 [Inc.Enc./24V/32Bit/S.E.] • 41

Process Image


Control Byte C0


0 OpMode SetLoadExt

Reset Overflow

Reset Under-

flow

CNT_ SET

EN_ LAT_ EXT

EN_ LATC

EN_ LATC






EN_ LAT_ EXT







SetLoad Ext



1=Preload Mode The counter is latched by a trigger signal.

Subsequently, the counter is loaded with the set value.

0 reserved

42 • 750-637/000-002 [Inc.Enc./24V/32Bit/S.E.]

Process Image


Control Byte C1


0 Enable Ref

Set Nocke2

Set Nocke1

Dis Nocke2

Dis Nocke1

MapPZD MapPZD













0 reserved

750-637/000-004 [Inc.Enc./24V/32Bit/S.E./cam] • 43

View


2.1.4 750-637/000-004 [Inc.Enc./24V/32Bit/S.E./cam]

Incremental encoder interface 24 V / 32 bit / single ended / cam outputs

2.1.4.1 View

+ -

L G

R S

15 16

C

D

B

A

C

13 14

C

D

B

A

750-637/000-004

B

A

N1 N2

C

AB

Latch

A

B

C GateLatch

N 2N 1

0V24V

N 1N 2GateRef

Ref

Data contacts

Shield (screen)

Fig. 2.1.4-1: View g063740e

2.1.4.2 Description

The I/O module 750-637/000-004 represents an interface for any type of incremental encoder with an single ended 24 V connection.


Inputs/Outputs

A, B Quadrature input, 24 V, single ended

C Zero reference input, 24 V, single ended


N1, N2 Output, 24 V



44 • 1BI/O Modules

750-637/000-004 [Inc.Enc./24V/32Bit/S.E./cam]










Display Elements




off 0 V < U(A) < 5 V or input open A1 A

green 30 V > U(A) > 15 V

off 0 V < U(C) < 5 V or input open B1 C

green 30 V > U(C) > 15 V

off 0 V < U(B) < 5 V or input open C1 B

green 30 V > U(B) > 15 V

off Input = 0 V or open D1 Latch

green Input = 24 V

off Input = 0 V or open A2 Gate

green Input = 24 V

off Output = 0 V B2 N1

green Output = 24 V

off Input = 0 V or open C2 Ref

green Input = 24 V

off Output = 0 V

15 16

C

D

B

A

13 14

C

D

B

A

B1

A1C1

D1

B2

A2C2

D2


D2 N2 green Output = 24 V


24V/0V A B C

N1/N2

N1/N2

Latch/Gate

N1/N2

Gate/Ref

DC

DC

Logic

A

B

C

Ref/Shield(screen)

Latch

Gate/Ref

A,B,C

0V

24V

Latch

Shield(screen)

1

2

3

4

5

6

7

8

750-637/000-004

1

2

3

4

5

6

7

8







Sensor connection A, B, C, 0 V





Quadrature decoder 4-fold report



Velocity 16 Bit (Increments per 1ms)





Power supply DC 24 V (- 15 % ... + 20 %)

Undervoltage diagnostics (0) DC 28,8 V > supply voltage > DC 20,4 V (1) DC 0 V < supply voltage < DC 5 V




Internal bit width 1 x 32 bits data 2 x 8 bits control/status


24 mm x 64 mm x 100 mm

Weight ca. 105 g




Output resistancetyp. 160 m








Input voltage A, /A (0) DC 0 V < U(A) < DC 5 V (1) DC 30 V > U(A) > DC 15 V

Input voltage B, /B (0) DC 0 V < U(B) < DC 5 V (1) DC 30 V > U(B) > DC 15 V

Input voltage C, /C (0) DC 0 V < U(C) < DC 5 V (1) DC 30 V > U(B) > DC 15 V





Conformity Marking

CULUS (UL508)






Typically, incremental encoders supply two output signals of the encoder track, both 90° offset. These signals are designated A and B. The difference of the input signals is evaluated in the incremental encoder I/O module.






Input Function

A, B Quadrature input, 24 V, single ended Increment pulse signal channel A or B of the Incremental Encoder

C Zero reference input, 24 V, single ended Incremental encoder index pulse Dependent on the operating mode, the counter reading is taken over into the latch register or the counter showing the set value is additionally loaded, if the input edge is positive.







Output Function

N1, N2 Cam output, 24 V, 0.5 A "1" - Counter value is whithin window 1 or window 2 "0" - Counter value is outside window 1 or window 2 The cams can be globally enabled or locked. This guarantees that no unexpected switching states occur due to changes of the windows in operating mode. All cam outputs are reset (output voltage 0 V) in the event of a field voltage failure. When the voltage is restored, all cams remain reset independent of the previous switching state (output voltage 0 V). The voltage failure is reported to the control unit via a status bit. The cam windows must then be set anew.


Process Image














Counter value Latch value


MapPZD (Control Byte C1 / Status Byte S1, Bit 0)

Bit 0 Coding of the Process data

0 Counter value

0 Latch value




Status Byte S0


0 PF AckSetLoadExt

OUF Enable_Nocken_

Ack

CNT_ SET_ ACK

LAT_ EXT_ VAL

LATC_VAL

LATC_ VAL


LAT_ EXT_ VAL

Acknowledge bit for EN_LAT_EXT (C0.1). Latch Mode: This bit is set with a positive edge at the input Latch. It is reset when EN_LAT_EXT is reset. Preload Mode: This bit is set with a positive edge at the input Latch. It is reset when EN_LAT_EXT is reset.

CNT_ SET_ ACK


Enable_ Nocken_ Ack

Acknowledgement bit for Enable_Cams ( C1.6 ) When the acknowledgement bit and the request bit are identical, the command was executed by the module. The cam outputs have the desired state.

OUF Combined over/underflow status bit Set/reset conditions:

Underflow function (rotational direction "left") Bit = 1 for counter having passed the underflow value from 0x00000000 to 0xffffffff Bit = 0 if then the counter reading is < 0xAAAAAAAA Bit = 0 for acknowledgement, therefore with a positive edge RESET_OUF (C0.4) Bit = 0 at overflow event without previous acknowledgement

Overflow function (rotational direction "right") Bit = 1 for counter having passed the overflow value from 0xffffffff to 0x00000000 Bit = 0 if then the counter reading is > 0x55555555 Bit = 0 for acknowledgement, therefore with a positive edge RESET_OUF (C0.4) Bit = 0 if overflow event without previous acknowledgement

AckSet LoadExt



PF The loss of field power is indicated. ( Powerfail ) Bit = 1 The field voltage is < 5 V Bit = 0 The field voltage is > 20.4 V After a power failure, all cam windows are set to 0. The counter reading is set to 0.

0 reserved


Process Image


Status Byte S1


0 0 N2_F1 N1_F1 N2_F2 N1_F2 Set Nocken_

Ack

MapPZD

MapPZD Coding of process data The request bit ( C1.0 ) to show the counter or latch value is acknowledged. The requested value in the input data process is valid.

Set Nocken_ Ack

Collective acknowledgement bit for all cam set requests. The bit is set if one or several of the request bits 2, 3, 4 or 5 are set by control byte C1.

N1_F2 Cam 1, window 2 The bit is set if bottom comparison value N1F2_LO < counter reading < upper comparison value N1F2_HI and the cams are enabled ( C1.6 ), and the field voltage is available ( S0.6 = 0).




0 Reserved (These bits should be masked in the PLC)




Control Byte C0


0 OpMode SetLoadExt

Reset Overflow

Reset Under-

flow

CNT_ SET

EN_ LAT_ EXT

EN_ LATC

EN_ LATC






EN_ LAT_ EXT







SetLoad Ext


OpMode Bit = 0 Capture Mode The counter is latched by a trigger signal

Bit = 1 Preload Mode The counter is latched by a trigger signal. Subsequently, the counter is loaded with the set value.

0 reserved


Process Image


Control Byte C1


0 Enable_Nocken

Set Nocke2_

F1

Set Nocke1_

F1

Set Nocke2_

F2

Set Nocke1_

F2

INV_ GATE

MapPZD

MapPZD Coding of process data Bit = 0 Counter value Bit = 1 Latch value

INV _GATE

Bit = 0 The counting process is disabled when 24V is applied to the GATE input. Bit = 1 The counting process is disabled when 0V is applied to the GATE input or when the input is open. Notice: The request is not acknowledged in the status byte!

SetNocke1 _F2

With a positive edge, the set value is taken over as bottom comparison value N1F2_LO for cam output 1 (N1) window F2. With a negative edge, the set value is taken over as upper comparison value N1F2_HI for cam ouput 1 (N1) window F2.

SetNocke2 _F2


SetNocke1 _F1


SetNocke2 _F1


Enable _Nocken

Bit = 0 All cam outputs are disabled; i.e., output voltage 0 V Bit = 1 All cam outputs are enabled; i.e., output voltage 24 V The request is acknowledged in status bit Enable_Cams (S0.3).

0 reserved

54 • Use in Hazardous Environments

10BSpecial Modules


Use in Hazardous Environments

The WAGO-I/O-SYSTEM 750 (electrical equipment) is designed for use in Zone 2 hazardous areas.

The following sections include both the general identification of components (devices) and the installation regulations to be observed. The individual subsections of the "Installation Regulations" section must be taken into account if the I/O module has the required approval or is subject to the range of application of the ATEX directive.

Use in Hazardous Environments • 55

Identification


2.2 Identification

2.2.1 For Europe according to CENELEC and IEC

Fig. 2.2.1-1: Example for lateral labeling of bus modules (750-400, 2 channel digital input module 24 V DC) p01xx03x

Fig. 2.2.1-2: Printing on text detail in accordance with CENELEC and IEC p01xx04x

Tab. 0-1: Description of Printing on

Printing on Text Description

DEMKO 08 ATEX 142851 XIECEx PTB 07.0064X

Approval body and/or number of the examination certificate

I M2 / II 3 GD Device group and Unit category

Ex nA Type of ignition and extended identification

IIC Device group

T4 Temperature class


Identification


Figure 1: Example of side marking of Ex i and IEC Ex i approved I/O modules

Figure 2: Inscription text detail acc. CENELEC and IEC


Identification


Table 1: Description of the inscription

Inscription text Description TÜV 07 ATEX 554086 X TUN 09.0001X

Approving authority or certificate numbers

Dust II Device group: All except mining 3(1)D Device category: Zone 22 device (Zone 20 subunit) Ex Explosion protection mark tD Protection by enclosure [iaD] Approved in accordance with "Dust intrinsic safety"

standard A22 Surface temperature determined according to

Procedure A, use in Zone 22 IP6X Dust-tight (totally protected against dust) T 135°C Max. surface temp. of the enclosure (no dust bin) Mining I Device group: Mining (M2) Device category: High degree of safety [Ex ia] Explosion protection: Mark with category of type of

protection intrinsic safety: Even safe when two errors occur

I Device group: Mining Gases II Device group: All except mining 3(1)G Device category: Zone 2 device (Zone 0 subunit) Ex Explosion protection mark nA Type of protection: Non-sparking operating

equipment [ia] Category of type of protection intrinsic safety: Even

safe when two errors occur IIC Explosion Group T4 Temperature class: Max. surface temperature 135°C


Identification


2.2.2 For America according to NEC 500

Fig. 2.2.2-3: Example for lateral labeling of bus modules (750-400, 2 channel digital input

module 24 V DC) p01xx03x

Fig. 2.2.2-4: Printing on text detail in accordance with CENELEC and IEC p01xx05x

Tab. 0-2: Description of Printing on

Printing on Text Description

CL 1 Explosion protection group (condition of use category)

DIV 2 Area of application (zone)

Grp. ABCD Explosion group (gas group)

Op temp. code T4 Temperature class


Installation Regulations


2.3 Installation Regulations

In the Federal Republic of Germany, various national regulations for the installation in explosive areas must be taken into consideration. The basis for this forms the working reliability regulation, which is the national conversion of the European guideline 99/92/E6. They complemented by the installation regulation EN 60079-14. The following are excerpts from additional VDE regulations:

Tab. 0-3: VDE Installation Regulations in Germany

Standard Installation Regulations

DIN VDE 0100 Installation in power plants with rated voltages up to 1000 V

DIN VDE 0101 Installation in power plants with rated voltages above 1 kV

DIN VDE 0800 Installation and operation in telecommunication plants including information processing equipment

DIN VDE 0185 lightning protection systems

The USA and Canada have their own regulations. The following are excerpts from these regulations:

Tab. 0-4: Installation Regulations in USA and Canada

Standard Installation Regulations

NFPA 70 National Electrical Code Art. 500 Hazardous Locations

ANSI/ISA-RP 12.6-1987 Recommended Practice

C22.1 Canadian Electrical Code

Warning When using the WAGO-I/O SYSTEM 750 (electrical operation) with Ex approval, the following points are mandatory:




2.3.1 Special Conditions for Safe Operation of the ATEX and IEC Ex (acc. DEMKO 08 ATEX 142851X and IECEx PTB 07.0064)

The fieldbus-independent I/O modules of the WAGO-I/O-SYSTEMs 750-.../...-... Must be installed in an environment with degree of pollution 2 or better. In the final application, the I/O modules must be mounted in an enclosure with IP 54 degree of protection at a minimum with the following exceptions:

- I/O modules 750-440, 750-609 and 750-611 must be installed in an IP 64 minimum enclosure.

- I/O module 750-540 must be installed in an IP 64 minimum enclosure for 230 V AC applications.

- I/O module 750-440 may be used up to max. 120 V AC.

When used in the presence of combustible dust, all devices and the enclosure shall be fully tested and assessed in compliance with the requirements of IEC 61241-0:2004 and IEC 61241-1:2004.

I/O modules fieldbus plugs or fuses may only be installed, added, removed or replaced when the system and field supply is switched off or the area exhibits no explosive atmosphere.

DIP switches, coding switches and potentiometers that are connected to the I/O module may only be operated if an explosive atmosphere can be ruled out.

I/O module 750-642 may only be used in conjunction with antenna 758-910 with a max. cable length of 2.5 m.

To exceed the rated voltage no more than 40%, the supply connections must have transient protection.

The permissible ambient temperature range is 0 °C to +55 °C.




2.3.2 Special conditions for safe use (ATEX Certificate TÜV 07 ATEX 554086 X)

1. For use as Gc- or Dc-apparatus (in zone 2 or 22) the fieldbus independent I/O modules WAGO-I/O-SYSTEM 750-*** shall be erected in an enclosure that fulfils the requirements of the applicable standards (see the marking) EN 60079-0, EN 60079-11, EN 60079-15, EN 61241-0 and EN 61241-1. For use as group I, electrical apparatus M2, the apparatus shall be erected in an enclosure that ensures a sufficient protection according to EN 60079-0 and EN 60079-1 and the degree of protection IP64. The compliance of these requirements and the correct installation into an enclosure or a control cabinet of the devices shall be certified by an ExNB.

2. If the interface circuits are operated without the fieldbus coupler station type 750-3../…-… (DEMKO 08 ATEX 142851 X) measures must be taken outside of the device so that the rating voltage is not being exceeded of more than 40% because of transient disturbances.

3. DIP-switches, binary-switches and potentiometers, connected to the module may only be actuated when explosive atmosphere can be excluded.

4. The connecting and disconnecting of the non-intrinsically safe circuits is only permitted during installation, for maintenance or for repair purposes. The temporal coincidence of explosion hazardous atmosphere and installation, maintenance resp. repair purposes shall be excluded.

5. For types 750-606, 750-625/000-001, 750-487/003-000, 750-484, the following must be taken into account: The interface circuits must be limited to overvoltage category I/II/III (electrical circuits without power supply/electrical circuits with power supply) as defined in EN 60664-1.

6. For the type 750-601 the following shall be considered: Do not remove or replace the fuse when the apparatus is energized.

7. The ambient temperature range is: 0°C ≤ Ta ≤ +55°C (for extended details please note certificate).




2.3.3 Special conditions for safe use (IEC-Ex Certificate TUN 09.0001 X)

1. For use as Dc- or Gc-apparatus (in zone 2 or 22) the fieldbus independent I/O modules WAGO-I/O-SYSTEM 750-*** shall be erected in an enclosure that fulfils the requirements of the applicable standards (see the marking) IEC 60079-0, IEC 60079-11, IEC 60079-15, IEC 61241-0 and IEC 61241-1. For use as group I, electrical apparatus M2, the apparatus shall be erected in an enclosure that ensures a sufficient protection according to IEC 60079-0 and IEC 60079-1 and the degree of protection IP64. The compliance of these requirements and the correct installation into an enclosure or a control cabinet of the devices shall be certified by an ExCB.

2. Measures have to be taken outside of the device that the rating voltage is not being exceeded of more than 40% because of transient disturbances.

3. DIP-switches, binary-switches and potentiometers, connected to the modulemay only be actuated when explosive atmosphere can be excluded

4. The connecting and disconnecting of the non-intrinsically safe circuits is only permitted during installation, for maintenance or for repair purposes. The temporal coincidence of explosion hazardous atmosphere and installation, maintenance resp. repair purposes shall be excluded.

5. For the types 750-606, 750-625/000-001, 750-487/003-000, 750-484 the following shall be considered: The interface circuits shall be limited to overvoltage category I/II/III (non mains/mains circuits) as defined in IEC 60664-1.

6. For the type 750-601 the following shall be considered: Do not remove or replace the fuse when the apparatus is energized.

7. The ambient temperature range is: 0°C ≤ Ta ≤ +55°C (for extended details please note certificate).




2.3.4 ANSI/ISA 12.12.01

This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or non-hazardous locations only.

Warning Explosion hazard - substitution of components may impair suitability for Class I, Div. 2.

Warning Do not disconnect equipment unless power has been switched off or the area is known to be non-hazardous.

When a fuse is provided, the following marking shall be provided: ”A switch suitable for the location where the equipment is installed shall be provided to remove the power from the fuse.” The switch need not be integrated in the equipment.

For devices with Ethernet connectors: ”Only for use in LAN, not for connection to telecommunication circuits.”

Warning Use Module 750-642 only with antenna module 758-910.

WAGO Kontakttechnik GmbH & Co. KG Postfach 2880 • D-32385 Minden Hansastraße 27 • D-32423 Minden Phone: 05 71/8 87 – 0 Fax: 05 71/8 87 – 1 69 E-Mail: [email protected] Internet: http://www.wago.com



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