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This instruction sheet is for the installation of back-channel cooling kits available for the VLT series drives. These kits are designed and tested to be used with Rittal TS8 enclosures1800, 2000 and 2200 mm in height. Other enclosure heights are not supported. In addition tothe enclosure a 200 mm vented base/plinth is required.

The minimum enclosure depth is 500 mm (600mm for E2 frame) and the minimum enclosurewidth is 600 mm (800mm for E2 frame). The maximum depth and width are as required bythe installation. When using multiple drives in one enclosure mount each drive on its ownback panel and support along the mid-section of the panel. The ductwork kits are very similarin construction for all frames. The D3 and D4 kits do not support in frame mounting of thedrives. The E2 kit is mounted in frame for additional support of the drive. These kits can beused with IP00/ Chassis drives as listed in Table 1 and are suitable for use only with Rittal

TS8 IP20 and UL & NEMA 1 and IP54 and UL & NEMA 12 enclosures.

Using these kits as described removes 85% of the losses via the back channel using thedrives main heat sink fan. The remaining 15% must be removed via the door of the Rittalenclosure. (Refer to Note 2 on Page 2 for air flow requirements.)

INSTRUCTIONSINSTALLATION OF BACK-CHANNEL COOLING KIT FOR FRAMES D3, D4 & E2

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Kit Contents Ductwork components Mounting hardware Gasket material 175R5631 View of Ductwork components, D3 and D4 frames 175R1037 View of Ductwork components, E2 frame 175R5639 Template for drive location in D frames

Required Tools Metric Socket Set, 7-19mm Socket Extensions Torx Driver Set T10-T40 Torque Wrench 6-50 in-lbs (.7-6 N-M)

Torque Requirements

1. 10 mm, M5 Nuts torque to 20 in-lbs (2.3 N-M)2. T25 Torx screws torque to 20 in-lbs (2.3 N-M)

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Figure 4. Lower mounting locations

Install the seal plates over the twobottom drive mounting studs and se-cure the drive with nuts. See Figures4 and 5.

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Figure 6. Bottom duct adapter

Figure 7. Bottom duct adapter w/gaskets installed

Prior to installing the back panel inthe enclosure, apply the gasket onboth sides of the bottom duct adapteras shown in Figures 6 and 7.

ll h b k

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Before installing the back panel withthe drive in the enclosure, removeand discard the rear-most screwsthat are located on the top cover of the drive. See Figure 9. The holeswill be used to fasten the top duct-work with longer screws providedwith the kit.

Install the backpanel (and drive) inthe enclosure. See Figure 10 UseRittal PS4593.000 brackets(minimumoneper sideat themiddle

Figure 9. Top of IP00/Chassis drive

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Figure 11. Top duct assembly

The top duct work cover is composedof the following pieces as shown inFigure 11. From left to right: top duct closing plate drive bracket duct vented top cover

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Figure 14. Enclosure top with cutout

Cut the enclosure top. Do not applygasket to enclosure top (the gasketis part of the duct work). See Figure14.

For the final installation of the duct

work, assemble the top duct asshown in Drawing 175R5631, Sheet2. Note that the gasket is applied toboth sides of the drive bracket andgrated cover. Also see Figures 15

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Figure 16. Top duct assembled with gasket

The top duct closing plate is left off for the installation of the duct work onthe drive. The top duct work is at-tached to the drive using existingholes on the top cover of the drive.Use the 5 longer screws (suppliedwith kit) to install the top duct work.

The duct work will fit over the drivemounting bolts.

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Apply the gasket to the top ductclosing plate as shown in Figure 20.

Figure 19. Top duct assembly installed

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Figure 22. Enclosure top installed

Install the top of the enclosure. Ref-erence Figures 22 and 23.

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The bottom duct assembly parts areshown in Figure 24. Refer to drawing

175R5631, Sheet 3. Install the gas-ket as shown. Assemble the bottomduct but do not attach the cover. As-sembly includes the mounting of 3angle brackets on the front and sidesof the partially assembled bottomduct. The bottom duct collar is boltedto the duct using 3 -T25 screws in theoutermost holes of the brackets.

Tighten screws to compress the gas-ket. Reference Figure 25.

Figure 24. Bottom duct pieces

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Remove the two front-most glandplates from the drive.

The duct assembly is used to locatethe bottom cutout of the enclosure.

Temporarily install the bottom duct-work as shown in Figure 26. Use theinside of the duct assembly to markthe bottom of the enclosure for theopening. Alternately, drawing175R5639 can be used.

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The cutout is made on the inner mostgland plate. See Figure 27.

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Install the bottom duct assembly byrotating it into position behind the

leading edge of the bottom ductadapter. See Figures 28 and 29.

The bottom duct work is designed tofit tightly. The upper part of the ductfits under the bottom duct adapterand requires a tight seal, permittingthe enclosure to maintain its IP54and UL & NEMA 12 ratings.

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After the bottom duct work is posi-tioned in place, remove the three

T25 screws from the outer holes inthe mounting brackets on the sidesand front of the duct work and movethem to the inner holes of the samebrackets. See Figure 30. Tightenthe three screws to the specifiedtorque.

The bottom duct work is not fastenedto the enclosure.

Figure 30. Move mounting screws from the outerhole to the innerhole

Outer hole Inner hole

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