Siemens MICROMASTER 440 - F0090 Signal Loss, Encoder; F0101 Stack Overflow; F0221 PID Feedback below the Minimum Value; F0222 PID Feedback above Maximum Value

Issue 01/06 Faults and Alarms
MICROMASTER 440 Parameter List
6SE6400-5BB00-0BP0
313
F0090 Signal loss, encoder STOP II
Quit
Refer to F0001
Cause
- encoder signal between the encoder and inverter is interrupted
- excessively large difference between the setpoint (reference) and actual frequency
Diagnosis & Remedy
Please check the following:
- is there an integrated encoder? If there is no integrated encoder, then set P0400 = 0 and select the
operating mode sensorless closed-loop vector control (P1300 = 20 or 22)
- the connection between the encoder and the inverter
- is the encoder faulty? (select P1300 = 0, operation with fixed speed, check the encoder signal in r0061)
- increase the encoder signal threshold in P0492, P0494
F0101 Stack overflow STOP II
Quit
Refer to F0001
Cause
- software error or processor failure
Diagnosis & Remedy
- carry-out self-test routines
F0221 PID feedback below the minimum value STOP II
Quit
Refer to F0001
Cause
- PID feedback below the minimum value P2268.
Diagnosis & Remedy
- change value of P2268.
- set feedback gain.
F0222 PID feedback above maximum value STOP II
Quit
Refer to F0001
Cause
- PID feedback above maximum value P2267.
Diagnosis & Remedy
- change value of P2267.
- set the feedback gain.
F0422 No load applied to inverter STOP II
Quit
Refer to F0001
Cause
No Load is applied to the inverter.
As a result, some functions may not work as under normal load conditions.
F0450 Failure BIST tests STOP II
Quit
Refer to F0001
Cause
Self-test routine unsuccessful (refer to fault value r0949):
- r0949 = 1: Self-test routine for power module components unsuccessful
- r0949 = 2: Self-test routine for closed-loop control module components unsuccessful
- r0949 = 4: Several function tests were unsuccessful
- r0949 = 8: Several tests carried-out at the I/O module were unsuccessful (only MICROMASTER 420)
- r0949 = 16: Failure of the internal RAM at the switch-on test
Diagnosis & Remedy
- the drive is functional, but several functions are not correctly executed.
- replace the drive
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