Motor connection, Electrical installation, Danger – Lenze EVF9333 User Manual
Page 195
Electrical installation
Standard devices in the power range 75 ... 90 kW
Motor connection
l
195
EDKVF9333V DE/EN/FR 7.1
5.7.5
Motor connection
)
Note!
ƒ
Fusing the motor cable is not required.
ƒ
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.
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
Alle Steuerklemmen sind nach dem Anschluss eines Kaltleiters (PTC) oder
eines Thermokontakts nur noch basisisoliert (einfache Trennstrecke).
ƒ
Berührsicherheit bei defekter Trennstrecke ist nur durch externe
Maßnahmen gewährleistet, z. B. doppelte Isolierung.
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
9300vec139
Fig. 5−21
Circuit diagram of motor connection with PTC thermistor or thermal contact (NC contact) at T1, T2