Fault Messages; 10 Volts Low; Live Zero Error; No Motor - GE AF-600 FP Operating Instructions Manual

9.1.1 Fault messages

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 Ω.
WARNING/ALARM 2, Live zero error:
The signal on terminal 53 or 54 is less than 50% of the value set in par.
AN-10 Terminal 53 Low Voltage, par. AN-12 Terminal 53 Low Current, par.
AN-20 Terminal 54 Low Voltage, or par. AN-22 Terminal 54 Low Current re-
spectively.
WARNING/ALARM 3, No motor:
No motor has been connected to the output of the frequency converter.
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 in case of a fault in the input rectifier on the fre-
quency converter.
Check the supply voltage and supply currents to the frequency converter.
WARNING 5, DC link voltage high:
The intermediate circuit voltage (DC) is higher than the over-voltage 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.
9
WARNING/ALARM 7, DC over voltage:
If the intermediate circuit voltage exceeds the limit, the frequency converter
trips after a time.
Possible corrections:
Select Over Voltage Control function in par. B-17 Over-voltage Con-
trol
Connect a brake resistor
Extend the ramp time
Activate functions in par. B-10 Brake Function
Increase par. SP-26 Trip Delay at Drive Fault
Selecting OVC function will extend the ramp times.
Alarm/warning limits:
Frequency converter:
Under-voltage
Voltage warning low
Voltage warning high (w/o
brake - w/brake)
Over-voltage
The voltages stated are the intermediate circuit voltage of the frequency
converter with a tolerance 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 (see table above), 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
3.1 General Specifications.
164
3 x 380 - 3 x 525 -
480 V 600 V
[VDC] [VDC]
402 553
423 585
817/828 1084/1109
855 1130
AF-600 FP High Power Operating Instructions
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. You can-
not reset the frequency converter until the counter is below 90%.
The fault is that the frequency converter is overloaded by more than nominal
current for too long.
WARNING/ALARM 10, Motor Electronic Overload over temperature:
According to the electronic overload, the motor is too hot. You can choose if
you want the frequency converter to give a warning or an alarm when the
counter reaches 100% in par. F-10 Electronic Overload. The fault is that the
motor is overloaded by more than nominal current for too long. Check that
the motor par. P-03 Motor Current is set correctly.
WARNING/ALARM 11, Motor thermistor over temp:
The thermistor or the thermistor connection is disconnected. You can choose
if you want the frequency converter to give a warning or an alarm in par.
F-10 Electronic Overload. Check that the thermistor is connected correctly
between terminal 53 or 54 (analog voltage input) and terminal 50 (+ 10 Volts
supply), or between terminal 18 or 19 (digital input PNP only) and terminal 50.
If a KTY sensor is used, check for correct connection between terminal 54 and
55.
WARNING/ALARM 12, Torque limit:
The torque is higher than the value in par. F-40 Torque Limiter (Driving) (in
motor operation) or the torque is higher than the value in par. F-41 Torque
Limiter (Braking) (in regenerative operation).
WARNING/ALARM 13, Over Current:
The inverter peak current limit (approx. 200% of the rated current) is exceeded.
The warning will last approx. 8-12 sec., then the frequency converter trips and
issues an alarm. Turn off the frequency converter and check if the motor shaft
can be turned and if the motor size matches the frequency converter.
ALARM 14, Earth fault:
There is a discharge from the output phases to earth, either in the cable be-
tween the frequency converter and the motor or in the motor itself.
Turn off the frequency converter and remove the earth fault.
ALARM 15, In-complete hardware:
A fitted option is not handled by the present control board (hardware or soft-
ware).
ALARM 16, Short-circuit:
There is short-circuiting in the motor or on the motor terminals.
Turn off the frequency converter and remove the short-circuit.
WARNING/ALARM 17, Control word timeout:
There is no communication to the frequency converter.
The warning will only be active when par. O-04 Control Word Timeout Func-
tion is NOT set to OFF.
If par. O-04 Control Word Timeout Function is set to Stop and Trip, a warning
appears and the frequency converter ramps down to zero speed, while giving
an alarm.
par. O-03 Control Word Timeout Time could possibly be increased.
WARNING 23, Internal fans:
External fans have failed due to defect hardware or fans not mounted.