5 faults and alarms, 1 fault messages – Siemens 440 User Manual

Page 307

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Issue 01/06

Faults and Alarms

MICROMASTER 440 Parameter List
6SE6400-5BB00-0BP0

307

5 Faults

and

Alarms

5.1 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:
1. Cycle the power to the drive.
2. Press the

button on the BOP or AOP.

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

STOP

II

Quit

Remove fault and reset fault memory by disconnecting the
-

drive converter from the line supply and powering-up again

-

Press the Fn key on the BOP or AOP

-

Acknowledge fault P2103, P2104

-

P0952 (complete fault memory)

Cause

-

short-circuit at the output

- ground

fault

-

excessively large motor (the motor power rating P0307 is greater than the inverter power r0206)

-

defective final stage (end stage)

Diagnosis & Remedy

Please check the following:
-

are the cable lengths within the limit values ?

-

does the motor cable or motor have either a short-circuit or ground fault ?

-

do the motor parameters correspond to those of the motor being used ?

-

is the motor overloaded or stalled (locked rotor) ?

-

increase the accelerating time.

-

reduce the gain

-

use a motor with a lower power rating

-

is the stator resistance value (P0350) correct ?

F0002 Overvoltage

STOP

II

Quit

Refer to F0001

Cause

-

DC link voltage (r0026) higher than the overvoltage threshold (refer to parameter r0026)

- ground

fault

Diagnosis & Remedy

Please check the following:
-

is the line supply voltage within the permissible range?

-

has the DC current DC link monitoring been enabled (P1240) and correctly parameterized?

-

extend the deceleration ramp (ramp-down time P1121, P1135)

-

remove the ground fault

-

is the required braking power within the permissible limits?

NOTE
-

a higher moment of inertia requires longer deceleration times; if required, use a braking resistor.

-

overvoltage can either be caused by an excessively high line supply voltage or by the fact that the motor
is generating (regenerative mode).

-

the motor can be generating as it is decelerating quickly or due to the fact that an active load is driving
the motor.

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