Installation guide

UPS 40 – 160 kVA, 400V 50/60 Hz output
User’s and Installation Guide
1023294
Revision C
47
7.11.1 Turn UPS from normal mode to mechanical bypass
The procedure to turn the UPS to mechanical bypass switch is described below.
1. The normal start position should be following:
2. Perform transfer from normal mode to bypass mode as described in paragraph 7.4.
Remember to verify the transfer before proceeding the next step.
3. Turn ON the S3 switch to bypass UPS.
4. Turn OFF the S4 switch to disconnect UPS output:
5. Perform LOAD OFF procedure contained in paragraph 7.9.
6. Turn OFF the rectifier switch to disconnect UPS rectifier input.
7. Turn OFF the S2 switch to disconnect UPS bypass input:
8. UPS is now in the mechanical bypass mode, see below: