Engineer Training

Supply Unit

TJ8300 / TJ8500

Supply Unit

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Engineer Training

Supply Unit

TJ8300 / TJ8500General Description

Located in the electronic cabinet

Easily accessible and serviceable

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Engineer Training

Supply Unit

TJ8300 / TJ8500General Description (Cont.)

The supply unit has four functions:

Generates all of the DC voltages in the machine

Switches voltages on/off

Protections via circuit breakers and fuses

Light indications for quick diagnostics

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Engineer Training

Supply Unit

TJ8300 / TJ8500General Description (Cont.)

The supply unit includes two modular Lambda power supplies:

The first Lambda power supply produces 2 X 24 VDC voltage, which are connected in serial. The result is 48 VDC, which is supplied to the inkjet drivers. Its maximum output power is 1000 W.

The second Lambda power supply generates 5 VDC, 12 VDC and 24 VDC. Its maximum output power is 1000 W.

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Supply Unit

TJ8300 / TJ8500General Description (Cont.)

A voltage of 5 VDC is consumed by the following:

Drum home

Drum encoder (Optic Read head)

Encoder interface boards (Drum, Bridge, Buffer and Roller)

Paper sensors

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Supply Unit

TJ8300 / TJ8500General Description (Cont.)

A voltage of 12 VDC is consumed by the following: Inkjet drivers TPFM boards QLM STC controller I/O controller Bridge heating controller (BHC) Motion control driver board (MCDB) Proximity switches Color control board (CCB) Sol-amp driver (in the control unit)

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Supply Unit

TJ8300 / TJ8500General Description (Cont.)

A voltage of 24 VDC is consumed by the following:

All I/O system

All solenoids of Color system

Galil board

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Supply Unit

TJ8300 / TJ8500Supply Unit Switches

Main on/off switch of the supply unit

Control on/off switch

Data power on/off switch – Controls 48 VDC, 12 VDC(IJ drivers, TPFM and QLM)

Bridge heating power breaker switch – Controls 35 VAC for the bridge heating controller (BHC)

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Supply Unit

TJ8300 / TJ8500Supply Unit Switches (Cont.)

S1 switch – main power input to thesupply unit.

S2 switch (Control power ) – powers up or down all the control voltages in the machine.

S3 switch (Data power) - powers up or down all data voltages in the machine (5VDC QLM,12VDC and 48VDC).

S4 switch (Bridge heat) - powers up or down the 35VAC for the bridge heating.

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TJ8300 / TJ8500Operation and Controls

The 48VDC operation for IJ drivers is controlled from the software and can be switched on and off from the I/O.

Protection for the IJ Drivers – if the 12VDC is not enabled to the IJ Drivers; the 48VDC can not be applied.

There is a feedback for the 48VDC voltage of the IJ drivers from the supply unit to the computer (for diagnostics purposes).

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TJ8300 / TJ8500Operation and Controls (Cont.)

Voltages for motion drivers are controlled from the I/O –checking the I/O outputs enables voltage to the motiondrivers (similar to AC Control of the PJ).

Drum Over speed protection – receives a relay dry contact from the MCDU, which delivers the voltage to the drum driver. If there is too much speed, the absence of the dry contact relay from the MCDU to the Supply unit will shut down the voltage to the drum driver.

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TJ8300 / TJ8500Light Indication and Fuse Protection

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TJ8300 / TJ8500F & L List Label

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TJ8300 / TJ8500Rear View and Connections (Cont.)

230VAC from the Electrical cabinet

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Supply Unit

TJ8300 / TJ8500Rear View and Connections (Cont.)

J1 Connector – main power in J2 Connector – 48VDC for IJ drivers and 12VDC for TPFM/QLMT J3 Connector – 12DC for TPFM/QLMT J4 Connector – 12VDC for QLM J5 Connector – not in use J6 Connector – input powers from the AC transformer J7, 8, 9, 10 Connector – voltages Aux J11 Connector – to drum driver J12 Connector – to MCDU (motion control driver unit) J13 Connector – to Control unit J14 Connector – all voltages for printing unit J15 Connector – diagnostics to the computer

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TJ8300 / TJ8500Inside View

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TJ8300 / TJ8500Inside View (Cont.)

Second Lambda power supply generates 48VDC for IJ Drivers

First Lambda power supply generates 5,12 and 24VDC for control

Control relays

C1- 48VDC capacitor

C2- 24VDC capacitor

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Supply Unit

TJ8300 / TJ8500Lamda Power Supplies

24VDC5VDC12VDC

24VDC24VDC

48VDC

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Supply Unit

TJ8300 / TJ8500Relays and Controls

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TJ8300 / TJ8500Relays

K1 – Controls relay for IJ drivers.

K2 – Controls relay for data.

K3 – 12VDC Indicator for IJ drivers (protection for IJ drivers – if K3 relay is not enabled, K1 relay, which enables 48VDC for IJ drivers, can not be applied).

K4 – 75VAC, 24VAC Relay for motion drivers(Drum driver and MCDU)

K5, K6 ,K7 – Hold, Off and On control. Enables 24VDC for I/O and CCB systems. Operation of the On or Off relays is enabled from the I/O digital outputs. If On is deselected from I/O digital outputs the Hold relay is automatically enabled.

K8 – Controls relay for CCB and I/O system.