Lenze EVF9338 - Manual (Page 88)

Electrical installation
Motor connection
Wiring of motor temperature monitoring
5
l
88 EDKVF9338 DE/EN/FR 4.0
5.4.1 Wiring of motor temperature monitoring
The drive controller features 2 connections for motor temperature monitoring:
ƒ 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
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).
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 V W 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
T1 T2
9300vec139 9300std328
Fig. 5−7 Connection of PTC thermistor or thermal contact (NC contact) at T1, T2