Step 8 Reinstall the drive by performing Step 3 to Step 7 in a reverse order.
Step 9 Power on the NetCol5000-A, choose Maint > Diagnostic Mode > Enter on the
home page, start the compressor, and check that the compressor works properly.
Then exit the diagnostic mode.
----End
6.5.5.2 Replacing a Danfoss Compressor Drive
Prerequisites
Before checking and maintaining the NetCol5000-A, ensure that the power supply
to the NetCol5000-A is disconnected and the drive has been placed without
primary power supply for 10 minutes. Otherwise, electric shocks may occur.
● Recommended materials: Flat-head screwdriver, Phillips screwdriver, socket
wrench (M3 and M6), diagonal pliers, coils, new compressor drive.
● Preparations: Switch o the outside main power input.
Procedure
Step 1 Open the rear door. Remove the lters, and switch o the general power input
breaker QF1 and compressor circuit breaker QF3.
Step 2 Open the front door.
Step 3 Open the U-shaped protection sheet metals of the compressor drive by using
Phillips screwdriver and take it out.
Step 4 Undo the buckle at the groove of the lower
bae plate (shown by 1 in Figure
6-16) using a at-head screwdriver. Remove the bae plate and control
communications terminals (terminals with jumpers 12–27 and 12–37 respectively).
NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm Width) 6 System Operation and Maintenance
Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd. 216
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