10 Service
208 Festo – GDCP-CMMS/D-FW-EN – 1404NH – English
10 Service
1 0.1 Protective and service functions
The motor c ontroller has a complex array of sensors that monitor the control section, power section,
motor and external communication to ensure that they function perfectly. Most errors c ause the c ontrol
section to shut down the power section (output stage). The power section cannot be switched back on
until the error has been eliminated and then acknowledged.
For some of the diagnostic messages, the behaviour of the motor controller can be parameterised.
Possible reactions t o the message:
a) PS off:
The power section is switched off immediately. The residual energy re sults in uncontrolled move -
ments ( c oasting) in the motor until a state of rest is reached.
b) Qstop:
Quick stop with the parameterised dece ler ation “Quick Stop (FCT)”. The o utput stage is switched
off after the rest state has been reached or after expiration of the parametrised monitoring time
“Quick Stop (FCT)”.
c) Warn:
Output of a warning, no further reaction.
Exception:
Reaction to limit switc h “error number: 430/431/439”: The drive is decelerated here with the para-
metrised stop deceleration “limit switch”.
d) Ignore:
No reaction
The following monitoring functions guarantee operational safety:
– Monitoring the motor temperature
– Measurement and monitoring of the power section temperature
– Detection of power interruption/failure
– Detection of earth faults (PE)
– Detection of overvoltages and undervoltages in the intermediate circuit
–I
2
t-monitoring of motor and output stage
– Detection of faults in the internal voltage supply
– Monitoring of the following error
– Detection of initialisation errors
– Detection of check-sum errors during parameter transmission
– Detection of communication errors
– Monitoring of the processor (watchdog)
– Monitoring of homing
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