Motor Connection - Lenze 9300 Série Instructions De Montage

5 Electrical installation
Standard devices in the power range 55 ... 75 kW

Motor connection

5.7.5 Motor connection
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Note!
ƒ
ƒ
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).
An "open" cable acts like an antenna and can cause faults on the drive controller.
ƒ
{
Danger!
ƒ
ƒ
2.7 k
T1 T2
PES
PES
Fig. 5−21
180
Fusing the motor cable is not required.
The drive controller features 2 connections for motor temperature
monitoring:
– Terminals T1, T2 for connecting a PTC thermistor or thermal contact
(NC contact).
– Pins X8/5 and X8/8 of the incremental encoder input (X8) for connecting a
KTY thermal sensor.
All control terminals only have basic insulation (single isolating distance)
after connecting a PTC thermistor or a thermal contact.
Protection against accidental contact in case of a defective isolating
distance is only guaranteed through external measures, e.g. double
insulation.
15 V
7.4 k
3.3 k
MONIT-OH8
PE U V W +UG -UG
PES
PES
J>
PES
M
PE
3~
Circuit diagram of motor connection with PTC thermistor or thermal contact (NC contact) at T1, T2
l
9300vec139
EDKVS9332X DE/EN/FR 4.0