TA-U1...U280
Instruction and Operating Manual
Misprints and technical changes reserved
49
7.2 Fault Description
F0 Motor over temperature: a) Overload motor.
b) Sensor cable defective.
c) Temperature control defective.
F1 Overcurrent switch-off: a) Short-circuit power stage.
b) The motor has a winding short-circuit or a ground fault.
F2 Over zemperature power stage: The heat sink temperature of the device has max. tempera-
ture exceeded ( > 80 ° C ):
a) The ambient temperature is too high ( about 40 ° C ).
b) The internal fan is faulty.
c) The permanent current of the device (I
rated
) is exceeded.
d) The device is wrongly mounted (see chapter 4.1.6 Arran-
gement in Switch Cabinet ).
F3 Buss undervoltage: The buss voltage is too low:
a) Mains too low.
b) A phase is missing.
c) Contactor K1 is not switching or defective.
F4 Buss overvoltage: The buss voltage is too high (>780V) :
a) The device current in 4Q operation is too high for at-
tached chopper or braking resistor.
b) The 4th quadrant is operate without chopper.
F5 Ripple current: The ripple in the buss voltage is too high:
a) A phase is missing
b) Buss capacitor is defective.
F6 Position sensor U, V and W: The feedback of the motor about the rotor position is faulty:
a) Cables or plugs defective.
b) Position sensor, sensorboard or encoder assembly is
defective. (refer to Operating & Maintenance Manual of
the motor ).
F7 Speedsensor: The feedback from the speedsensor is faulty:
a) A or B is not conected
b) A with B is exchanged
F8 Elektronic:
F9 Short-circuit IGBT / motor ground fault: a) Short-circuit at output U, V, W.
b) Motor power cable defective.
c) Power stage (IGBT) defective.
E1 External error: An external error can be release by a digital input. The input
can supervise e.g. overcurrent release from a independent
blower of the motor
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