09/01 AWB8230-1412GB
Fixed frequency FF1 to FF4
selection
65
PTC thermistor input: PTC
If programmable digital input 5 is configured as PTC, the motor
temperature can be monitored with a thermistor with a positive
temperature coefficient (PTC) connected to terminals 5 and L. If
the resistance of the thermistor rises above 3000 O (g10 %), the
motor is stopped and fault message E35 is displayed.
X Program digital input 5 as PTC by setting PNU C05 to 19.
Figure 63: Digital input 5 configured as PTC (thermistor input)
h
The PTC thermistor can be connected only to digital input
5, not to digital inputs 1 to 4 .
h
If digital input 5 is configured as PTC, but no thermistor is
connected, fault message E35 is displayed.
h
The PTC input is always a make contact; it cannot be
configured as a break contact.
PTC
5L
i
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