Siemens MICROMASTER 411 - Manual (Page 81)

Issue 03/01 6 Troubleshooting
MICROMASTER 411 & COMBIMASTER 411 Operating Instructions
6SE6400-5CA00-0BP0 81
6.3 Faults and Alarms
6.3.1 Fault messages
In the event of a failure, the inverter switches off and a fault code appears on the
display.
NOTE
To reset the fault code, one of three methods listed below can be used:
Method 1: Cycle the power to the drive
Method 2: Press the button on the BOP or AOP
Method 3: Via Digital Input 3 (Default Setting)
Fault messages are stored in parameter r0947 under their code number (e.g.
F0003 = 3). The associated error value is found in parameter r0949. The value 0 is
entered if a fault has no error value. It is furthermore possible to read out the point
in time that a fault occurred (r0948) and the number of fault messages (P0952)
stored in Parameter r0947.
F0001 OverCurrent OFF2
Possible Causes
Motor power (P0307) does not correspond to the inverter power (r0206)
Motor leads are too long
Motor lead short circuit
Earth faults
Diagnose & Remedy
Check the following:
Motor power (P0307) must correspond to inverter power (r0206)
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 time
Reduce the boost level (V/f control: P1311 & P1312, Vector control: P1610 & P1611)
F0002 OverVoltage OFF2
Possible Causes
DC-link controller disabled (P1240 = 0)
DC-link voltage (r0026) exceeds trip level (P2172)
Overvoltage can be caused either by too high main supply voltage or if motor is in regenerative
mode. Regenerative mode can be caused by fast ramp downs or if the motor is driven from an
active load.
Diagnose & Remedy
Check the following:
Supply voltage (P0210) must lie within limits indicated on rating 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
NOTE
Higher inertia requires longer ramp times; otherwise, apply braking resistor.
F0003 UnderVoltage OFF2
Possible Causes
Main supply failed