Vertiv EXM 0080kTK16FN01000, User Manual

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Chapter 8 Options 117
Liebert EXM 80kVA ~ 200kVA UPS User Manual
Each UPS cabinet has three bypass load sharing inductors, with no extra clearance occupied. The load
sharing rate is generally 10% of the system rated current with the difference of external cable
configuration. Try to make the cable length be the same from bypass to each UPS and from UPS module
output to parallel system connection point.
Preparation
1. Prepare the installation tools, including an electric screwdriver, a screw driver, a torque sleeve and a red
marker.
2. Check that all installation materials, types and cables are present and complete, and that auxiliary
materials (such as fastener, heat shrinkable tube and wire clasp) are present and in good condition.
Procedures
Warning
1. Only authorized personnel shall install and replace the inductors.
2. Connect the cables strictly following the instructions. Failure to observe this may cause damage to the UPS and
the inductors.
EXM 80kVA ~ 120kVA
1. Disconnect all input power of the UPS, such as battery and load.
2. All the TOUCHSCREENS are off, wait five minutes for the internal DC bus capacitors of the UPS
complete discharging.
3. Remove the left panel, front panel and rear panel of the UPS cabinet, reserve the removed screws.
4. Remove the cables W61, W62 and W63 from terminals bA, bB and bC, see Figure 8-8.
bA bB bC
Figure 8-8 Removing cables