Troubleshooting "No Output - Gamatronic Centric 3x480 Vac User Manual

10.5

Troubleshooting "No output"

This procedure is to be performed only as directed by Table 13 above.
There are a number of possible reasons for a "no output voltage" condition.
a) The EPO (Emergency Power Off) switch was activated.
See "Emergency Power Off is active" in Table 13.
b) A complete shutdown of the UPS was performed.
Restart ths system as follows: "Operation > Turn on/off > System on".
c) Shutdown may have been due to battery discharge following a failure of the power mains.
See "End of battery backup" in Table 13.
d) Bypass is in "Controlled" mode (see 7.2.5.5.1) and both the inverter voltage and the bypass
voltage are out of range. Verify that the static switch measurements are correct; perform
calibration if necessary ("Setup > STSW > Bypass voltage calibration" and/or
"Setup > STSW > Inverter voltage calibration").
If the static switch measurements are correct, change the bypass configuration to "Forced"
("Setup > STSW > High-level setup > Forced > Confirm").
CENTRIC 3x480, User Guide, rel. 1.7
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