Fault Codes - Siemens Midimaster Eco Reference Manual

FAULT CODES

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Overvoltage
Overcurrent
Overload
Overheating of motor
(monitoring with PTC)
Inverter
overtemperature
(internal PTC)
USS protocol time-out
Initialisation fault
Internal interface fault
External trip
Programme fault
Flying Start Instability
13-32
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Check whether supply voltage is within the limits indicated on
the rating plate.
Increase the Ramp-down time (P003) or apply braking
resistor (option).
Check whether the required braking power is within the
specified limits.
Check whether the motor power corresponds to the inverter
power.
Check that the cable length limits have not been exceeded.
Check motor cable and motor for short-circuits and earth
faults.
Check whether the motor parameters (P080 - P085)
correspond with the motor being used.
Check the stator resistance (P089).
Increase the ramp-up time (P002).
Reduce the boost set in P078 and P079.
Check whether the motor is obstructed or overloaded.
Check whether the motor is overloaded.
Increase the maximum motor frequency if a motor with high
slip is used.
Check if motor is overloaded.
Check the connections to the PTC.
Check that P087 has not been set to 1 without a PTC being
connected.
Check that the ambient temperature is not too high.
Check that the air inlet and outlet are not obstructed.
Check that the inverter's integral fan is working
Check the serial interface.
Check the settings of the bus master and P091 - P093.
Check whether the time-out interval is too short (P093).
Check the entire parameter set. Set P009 to `0000' before
power down.
1
Switch off power and switch on again.
Source of trip is digital input (configured as an external trip
input) going low - check the external source.
1
Switch off power and switch on again.
Disable flying restart
Ensure that P080 to P085 correspond to the name plate
motor details.
Adjust P386. Note that flying restart will not operate correctly
with multi-motors.
ECO REFERENCE MANUAL