Issue 08/03
MICROMASTER 440
6SE6400-5GA00-0BP0
Quick Start Guide 65
Fault /
Warning
Description Cause / Remedy
F0011
Motor Overtemperature
(Overloaded)
• Check and correct duty cycle
• Check if motor name plate information has been entered correctly –
if not, then re-perform quick commissioning using correct data. Most
common incorrect parameter is P0309 (motor efficiency). If this
value is too low, the calculated temperature will be incorrect.
• Perform Motor ID P1910=1 on a cold motor
• Check that motor weight is correct (P0344 – correct if necessary)
• If temperature sensors are fitted, check r0035 to see if they are
realistic, if not check that you have the correct type of sensor.
F0022 Power Stack Fault
• DC Link over current – check the following; Chopper short circuit,
braking resistor resistance too low, ground fault on output, IGBT
failure (disconnect motor leads and try to run – if fault still occurs
then IGBT failure has occurred)
• I/O board not properly seated – remove and re-clip into position.
• Poor Grounding on motor leads – check and improve if necessary.
F0041
Motor Identification
Failure
• Check that motor is connected.
• Check that ALL motor data is correct for wiring designation
(Wye/Delta) – Re-perform quick commissioning to correct this if
necessary.
F0080
Analog Input Signal
Lost
• Signal wire broken – check and correct
• Signal out of range – check and correct
F0085 External Trip Active
• External fault signal activated – reset active external fault
A0501 Current Limit Warning
• Cable length limits must not be exceeded
• Motor cable and motor must have no short-circuits or earth faults
• Motor parameters must match the motor in use
• Value of stator resistance (P0350) must be correct
• Motor must not be obstructed or overloaded
• Increase the ramp-up-time.
• Reduce the boost level (V/f control: P1311 & P1312, Vector control:
P1610 & P1611)
• Motor power (P0307) must correspond to inverter power (r0206)
A0502
Upper Voltage Limit
Warning
• Supply voltage (P0210) must lie within limits indicated on drive
name plate
• DC-link voltage controller must be enabled (P1240) and
parameterized properly
• Ramp-down time (P1121) must match inertia of load
• Required braking power must lie within specified limits
A0503
Lower Voltage Limit
Warning
• Supply voltage (P0210) must lie within limits indicated on rating
plate
• Supply must not be susceptible to temporary failures or voltage
reductions
• Enable kinetic buffering (P1240 = 2)
A0504
Inverter Over
temperature Warning
• Load conditions and duty cycle must be appropriate
• Fan must turn when inverter is running
• Pulse frequency (P1800) must be set to default value
• Ambient temperature could be higher than specified for the inverter
A0505
Inverter Overload
• Load duty cycle must lie within specified limits
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