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OPM_SGS_USM_10K_40K_0US_V010.doc 52/88 Operating Manual
SG Series
10, 20, 30 & 40 kVA
7.2.4 Restore to normal operation after EPO (Emergency Power Off)
UPS panel after activation of
EPO (Emergency Power Off)
with Utility not available, i.e.
complete shutdown of the UPS.
In this case wait until Utility is
again available, then proceed to
restart the UPS as described
below. Points 1 through 3.
UPS panel after activation of EPO
(Emergency Power Off) with Utility
available.
• All Contacts are open;
• Rectifier, Inverter and Static-Switch
shutdown.
1. Reset the EPO (Emergency Power
Off) button.
• Press mute, to reset alarm and
buzzer.
2. Press “inverter off” ( O ) key.
• Rectifier starts with blinking LED.
• At the end of Soft-start the LED
remains lit.
•
The LCD screen shows: “LOAD OFF”.
3. Press
“
inverter on
”
( I ) key
.
• Inverter starts with blinking LED.
• At the end of Soft-start the
LED
remains lit.
•
UPS output LED and LCD screen
indicate both:
“
LOAD ON INVERTER
”.
End of procedure