
IV432E Rev.01 SIEL S.p.A.
Installation and user manual
Date of issue: 2021-05-05
Pag.
24
of
50
+ FR
The rectifier will operate normally after 30 seconds. If the inverter works normally,
the system will be transferred from bypass mode to normal mode.
4.2.4 Cold start procedure
CAUTION!
Follow these procedures when the input AC Utility Failure, but
battery is normal
ƹ
Set the Battery
Breaker to the “ON”
for long run UPS.
ƹ
Turn ON the power switch for standard UPS.
ƹ
Turn ON the Output switch.
ƹ
Turn ON the power switch (power will feed to auxiliary power board).
ƹ
Trigger the cold start button as the position 18 of the below drawing.
When battery normal, rectifier starts operation, 30s later, inverter starts and
operates and battery LED on
CAUTION!
Please press the cold start button after 30 seconds until closing
the battery switch.
4.2.5
Shut down procedure
CAUTION!
This procedure should be followed to completely shut down the
UPS and the LOAD. After all power switches, isolators and circuit
breakers are opened, there will be no output.
On-line mode:
ƹ
Press OFF to shut down the UPS, waiting about 30s.
ƹ
Open the BATTERY breaker for long run UPS. Open the battery power switch