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VLT Ea4 Parallel Drive Modules
Operating Guide
1
LCP cradle
2
Control card (underneath cover)
3
Control terminal blocks
4
Top-level drive system nameplate. See
5
44-pin cables from MDCIC board to drive modules
6
Ferrite core
3.4 Wire Harnesses
The VLT® Ea4 Parallel Drive Modules basic kit contains 3 wiring harnesses:
•
Ribbon cable with 44-pin connector (on both ends of the cable)
•
Relay cable with 16-pin connector (on 1 end of the cable)
•
DC fuse microswitch cable with 2-pin connectors (on 1 end of the cable)
3.5 AC Fuses
Fuses installed on the supply side ensure that if a component breaks down (first fault) inside the drive, any potential damage is
contained inside the drive enclosure. The drive modules are supplied with built-in AC fuses.
3.6 DC Fuses
The VLT® Ea4 Parallel Drive Modules basic kit contains 2 DC fuses per drive module. These fuses are placed on the DC terminals to
ensure that any overcurrent damage is contained inside the drive modules.
Use of fuses on the supply side is mandatory for IEC 60364 (CE) compliant installations.
Illustration 6: DC Fuse and Microswitch Connector
1
DC fuse
2
Microswitch connector
14 | Danfoss A/S © 2023.01
7
MDCIC card
8
Control shelf
9
Switch mode power supply (SMPS). An external
230 V supply is needed to power the SMPS.
Illustration
1.
10
Pilz relay
11
DIN rail
12
Terminal block mounted on DIN rail
N O T I C E
Product Overview
AQ434333248451en-000101 / 130R1286
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