GE Industrial Solutions AF-600 FP High Power Unit Sizes 6x - Manual (Page 55)

4.6.1 Warning/Alarm List
WARNING 1, 10 Volts low:
The 10 V voltage from terminal 50 on the control card is below 10 V.
Remove some of the load from terminal 50, as the 10 V supply is overloaded.
Max. 15 mA or minimum 590 ohm.
Troubleshooting: Remove the wiring from terminal 50. If the warning clears,
the problem is with the customer wiring. If the warning does not clear, replace
the control card.
WARNING/ALARM 2, Live zero error:
This warning or alarm will only appear if programmed by the user in
par. AN-01 Live Zero Timeout Function . The signal on one of the analog inputs
is less than 50% of the minimum value programmed for that input. This con-
dition can be caused by broken wiring or faulty device sending the signal.
Troubleshooting: Check the connections on all the analog input terminals.
Control card terminals 53 and 54 for signals, terminal 55 common. OPCGPIO
General Purpose I/O Option Module terminals 11 and 12 for signals, terminal
10 common. OPCAIO analog I/O Option Module terminals 1, 3, 5 for signals,
terminals 2, 4, 6 common). Make sure that the frequency converter program-
ming and switch settings match the analog signal type.
WARNING/ALARM 3, No motor:
No motor has been connected to the output of the frequency converter.
Troubleshooting: Check the connection between the frequency converter
and the motor.
WARNING/ALARM 4, Mains phase loss:
A phase is missing on the supply side, or the mains voltage imbalance is too
high. This message also appears for a fault in the input rectifier on the fre-
quency converter. Options are programmed at par. SP-12 Function at Line
Imbalance.
Troubleshooting: Check the supply voltage and supply currents to the fre-
quency converter.
WARNING 5, DC link voltage high:
The intermediate circuit voltage (DC) is higher than the overvoltage limit of
the control system. The frequency converter is still active.
WARNING 6, DC link voltage low
The intermediate circuit voltage (DC) is below the undervoltage limit of the
control system. The frequency converter is still active.
WARNING/ALARM 7, DC over voltage:
If the intermediate circuit voltage exceeds the limit, the frequency converter
trips after a time.
Connect a brake resistor. Extend the ramp time
Troubleshooting:
• Connect a brake resistor
• Extend the ramp time
• Change the ramp type
• Activate functions in par. B-10 Brake Function
• Increase par. SP-26 Trip Delay at Drive Fault
Alarm/warning limits:
Voltage ranges 3 x 380 - 480/500 V 3 x 525 - 690 V
[VDC] [VDC]
Undervoltage 373 553
Voltage warning low 410 585
Voltage warning high (w/o
brake - w/brake) 810/840 1099/1109
Overvoltage 855 1130
The voltages stated are the intermediate circuit
voltage of the frequency converter with a toler-
ance of
± 5 %. The corresponding mains voltage is
the intermediate circuit voltage (DC-link) divided
by 1.35
WARNING/ALARM 8, DC under voltage:
If the intermediate circuit voltage (DC) drops below the “voltage warning low”
limit, the frequency converter checks if 24 V backup supply is connected.
If no 24 V backup supply is connected, the frequency converter trips after a
given time depending on the unit.
To check whether the supply voltage matches the frequency converter, see
Specifications.
Troubleshooting: Make sure that the supply voltage matches the frequency
converter voltage.
WARNING/ALARM 9, Inverter overloaded:
The frequency converter is about to cut out because of an overload (too high
current for too long). The counter for electronic, thermal inverter protection
gives a warning at 98% and trips at 100%, while giving an alarm. Reset can-
not be performed before counter is below 90%.
The fault is that the frequency converter is overloaded by more than 100%
for too long.
Troubleshooting:
• Compare the output current shown on the Keypad with the fre-
quency converter rated current.
• Compare the output current shown on the Keypad with measured
motor current.
• Display the Thermal Drive Load on the Keypad and monitor the val-
ue.
• When running above the frequency converter continuous current
rating, the counter should increase.
• When running below the frequency converter continuous current
rating, the counter should decrease.
High Power Service Manual for Unit Sizes 6x
54
4