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VLT Ea4 Parallel Drive Modules
Operating Guide
4.7 Installing the Control Shelf
ROUTING CONTROL WIRES
Routing control wiring together or next to power cables and bus bars can cause radio frequency interference.
-
Place control wiring at least 00 mm (00 in) away from power cables and bus bars.
Procedure
1.
Remove the control shelf assembly from its package.
2.
Remove the LCP from the control shelf.
3.
Use some type of mounting bracket to install the control shelf. Danfoss does not supply the mounting brackets for the
control shelf.
4.
Remove the MDCIC cover from the control shelf assembly.
5.
Connect the 44-pin ribbon cables from the MDCIC card to the top of the drive modules, following the sequence numbers
indicated next to the connectors on the MDCIC.
6.
Route the 44-pin ribbon cables inside the cabinet.
7.
Connect the external brake fault wiring harness between the microswitch terminals and the brake jumper connector on the
top of the drive module.
8.
Connect the relay wiring between relay 1 or 2 on the control shelf and the corresponding relay connector on the top of the
drive module.
20 | Danfoss A/S © 2023.01
N O T I C E
Mechanical Installation
AQ434333248451en-000101 / 130R1286
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