Profroid GSB Notice D'instructions page 55

Flash
Alarm conditions
code
8 Trip: Appears
Low there is
voltage compressor voltage.
Trip: Appears when the
9
voltage imbalance value
Voltage
exceeds the set value
imbalance
(default 5%).
Possible failure reasons
Supply voltage is not in
the specified range.
Loose
connections
when
terminal plate.
a low
Worn out contactors.
Faults with
peripheral electrical
loads.
Loose
connections
compressor
plate inside T-Box.
Worn out contactors.
Faults with
peripheral electrical
loads.
Single
conditions.
Troubleshooting measures
Verify voltage supply from the main buss.
Verify voltage into and out of contactor (repair or
replace contactor if necessary).
wiring
Measure voltage at the compressor terminal (refer to
at the
AE10-1244, Recommended Contactor Selection for 3-
Phase Motor Control – Power Supply Problems).
Verify that motor electrical connections are tight at
other
the compressor.
Verify that there are not any faults with other
peripheral electrical loads (for example fan motors).
wiring
Verify voltage supply from the main buss.
at the
Verify voltage into and out of contactor (repair or
terminal
replace contactor if necessary). Measure voltage at the
compressor
Recommended Contactor Selection for 3-Phase Motor
Control– Power Supply Problems).
other
Verify that motor electrical connections are tight at
the compressor.
Verify that there are not any faults with other
phasing
peripheral electrical loads (for example fan motors).
terminal (refer to
55/78
AE10-1244,