GE AF-650 GP Operating Instructions Manual page 56

WARNING/ALARM 10, Motor Electronic Thermal Overload over tempera-
ture:
According to the electronic thermal protection (Electronic Thermal Overload),
the motor is too hot. It can be chosen if the frequency converter is 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 100% for
too long. Check that par. P-03 Motor Current is set correctly.
Troubleshooting:
• Check if motor is overheating.
• If the motor is mechanically overloaded.
• That the par. P-03 Motor Current is set correctly.
• Motor data in par. P-07 Motor Power [kW] through par. P-06 Base
Speed are set correctly.
• The setting in par. F-11 Motor External Fan.
• Run Auto Tune in par. P-04 Auto Tune.
WARNING/ALARM 11, Motor thermistor over temp:
The thermistor or the thermistor connection is disconnected. Choose if the
frequency converter is to give a warning or an alarm. Check that the ther-
mistor 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.
Troubleshooting:
• Check if motor is overheating.
• If the motor is mechanically overloaded.
• Check that the thermistor is connected correctly between terminal
53 or 54 (analog voltage input) and terminal 50 (+10 V 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 ter-
minal 54 and 55.
• If using a thermal switch or thermistor, check the programming of
par. F-12 Motor Thermistor Input matches sensor wiring.
• If using a KTY sensor, check the programming of par. H-95 KTY Sen-
sor Type, par. H-96 KTY Thermistor Input and par. H-97 KTY Threshold
level match sensor wiring.
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). Par. SP-25 Trip Delay at Torque
Limit can be used to change this from a warning only condition to a warning
followed by an alarm.
WARNING/ALARM 13, Over Current:
The inverter peak current limit (approx. 200% of the rated current) is exceeded.
Turn off the frequency converter and check if the motor shaft can be turned
and if the motor size matches the frequency converter.
Troubleshooting:This fault may be caused by shock loading or fast acceler-
ation with high inertia loads. Turn off the frequency converter. Check if the
motor shaft can be turned. Make sure that the motor size matches the fre-
quency converter. Incorrect motor data in par. P-07 Motor Power [kW]
through par. P-06 Base Speed.
High Power Service Manual for Unit Sizes 6x
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.
Troubleshooting:
Turn off the frequency converter and remove the earth fault.
Measure the resistance to earth of the motor leads and the motor
with a megohmmeter to check for earth faults in the motor.
ALARM 15, In-complete hardware:
A fitted option is not operational with the present control board hardware or
software. Record the value of the following parameters and contact your
GE supplier:
Par. ID-40 Drive Type
Par. ID-41 Power Section
Par. ID-42 Voltage
Par. ID-43 Software Version
Par. ID-45 Actual Typecode String
Par. ID-49 SW ID Control Card
Par. ID-50 SW ID Power Card
Par. ID-60 Option Mounted
Par. ID-61 Option SW Version
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 decels until it trips, while giving an
alarm.
Par. O-03 Control Word Timeout Time could possibly be increased.
Troubleshooting:
Check connections on the serial communication cable.
Increase par. O-03 Control Word Timeout Time.
Check the operation of the communication equipment.
Verify a proper installation based on EMC requirements.
WARNING 22, Hoist mechanical brake
The report value will show what kind it is.
0 = The torque reference was not reached before time-out.
1 = There was no brake feedback before the time-out.
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