Maintenance Bypass - BPE PS50 Series User Manual

CAUTION!
Wait fo r approximately 30 seconds before you press the black start key

4.2.4 MAINTENANCE BYPASS

To supply the load via Mains, you may simply active the internal mechanical bypass switch.
CAUTION!
The load is not protected by the UPS when the internal mechanical bypass system is
active and the power is not conditioned.
Switch to mechanical bypass
CAUTION!
If the UPS is running normally and can be controlled through the display, carry out
steps 1 to 5; otherwise, jump to Step 4.
◆ Turn off the inverter on the LCD (1.2m cabinet: remove the maintenance cover),
then the UPS turns to bypass mode automatically.
◆ Switch on the maintenance switch;
◆ Switch OFF the battery breaker;
◆ Switch OFF the mains switch;
◆ Switch OFF the output switch;
At this time the bypass source will supply to the load through the maintenance switch.
Switch to normal operation (from mechanical bypass)
CAUTION!
Never attempt to switch the UPS back to normal operation until you have verified
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