Wiring Of Motor Temperature Monitoring - Lenze 9300 vector Series Mounting Instructions

5 Electrical installation
Motor connection

Wiring of motor temperature monitoring

5.4.1 Wiring of motor temperature monitoring
The drive controller features 2 connections for motor temperature monitoring:
Terminals T1, T2 for connecting a PTC thermistor or thermal contact (NC contact).
ƒ
Pin X8/5 and X8/8 of the incremental encoder input (X8) for connecting a KTY
ƒ
thermal sensor.
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. 5−7
88
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~
Connection of PTC thermistor or thermal contact (NC contact) at T1, T2
l
T1 T2
9300vec139 9300std328
EDKVF9338 DE/EN/FR 4.0