Electrical installation
Standard devices in the power range 15 ... 30 kW
Motor connection
5
178
EDKVS9332X DE/EN/FR 8.0
Motor with PTC thermistor or thermal contact (NC contact)
Wire T1, T2 only if the motor is equipped with a PTC thermistor or thermal contact
(NC contact).
ƒ An "open" cable acts like an antenna and can cause faults on the drive controller.
Danger!
ƒ All control terminals only have basic insulation (single isolating distance)
after connecting a PTC thermistor or a thermal contact.
ƒ Protection against accidental contact in case of a defective isolating
distance is only guaranteed through external measures, e.g. double
insulation.
PE
U
VW
T1 T2
+UG -UG
PES
PES
PE
M
3~
J>
PES
PES
PES
2.7 k
MONIT-OH8
15 V
3.3 k
7.4 k
9300vec139
Fig. 5−11 Circuit diagram of motor connection with PTC thermistor or thermal contact (NC contact) at T1, T2
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