Error messages and troubleshooting
Parameter manual b maXX BM5800
Document No.: 5.16029.03
739
of 814
4
505 Fieldbus cycle time < RT0-Cycle time The cycle time of the fieldbus task (Z1.10–) is set via the fieldbus
cycle time (Z131.18–). The RT0-Cycle time is set in Z1.8–.
n Remedy:
The error can be reset as soon as the fieldbus cycle time is
greater or equal to the RT0-Cycle time.
Pulse block
600 Terminal position search Inject. Plau-
sib. Step 1
In step 1 the injection procedure runs successively twice or the pole
position is determined twice. If both results show a major difference
(or about 30°), this bit is set.
m Cause:
Carrier current Id too low or amplification factor of the tracking
controller is too little
Pulse block
601 Terminal position search Inject. Plau-
sib. Step 2
In step 2 the carrier current is too low, in order to create the required
saturation so that the content of the 2
nd
harmonic I
2
(displayed in
parameter
Z133.9– 2nd Harmonic Rate) does not reach the level
which is indicated in parameter Z133.10– 2nd Harmonic Min.Rate.
Pulse block
602 Overcurrent with notch position search
Method 2
Overcurrent with notch position search Method 2 (using injection) Pulse block
603 Unable to synchronize the motor
702 Rotor position at synchronous machine
is unknown
The rotor position of the synchronous drive is unknown. Either the
rotor position offset or the absolute position could not be read from
the encoder or the synchronous drive is used with a incremental
encoder and a rotor position identification has not been executed
yet.
The error is also set if the encoder is switched off but the motor con-
figuration needs an encoder.
Reset of the error is possible. The error is set again if the cause of
the error has not been corrected.
m Cause:
For some encoders, the absolute position can partially no longer
be read out due to contamination of the code dial.
n Remedy:
Replace encoder.
m Cause:
Encoder cable defective
n Remedy:
Checking of encoder cable, and replacements if applicable
m Cause:
Encoder defective.
n Remedy:
Replace encoder and carry out new notch angle run!
Pulse block
703 Error writing rotor position offset to
encoder
An error occurred while writing the rotor position offset into the
encoder (e.g. timeout, data field not writable, encoder processes
other commands).
Pulse block
704 For synchronous machine: encoder
transmission not permitted
No encoder transmission was supported for synchronous machine.
A transmission factor not equal to 1:1 was read from the motor type
plate.
Pulse block
Error
num-
ber
Brief error text Error description Default set-
ting for
Error
Response
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