Lenze EVF9327

Wiring the standard device
Basic devices in the power range 45 ... 55 kW
Motor connection
5
5.6
5.6.4

5.6-5
EDSVF9333V EN 3.0-06/2005
5.6.4 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.
Wire T1, T2 only if t he motor is equipped with a PTC thermistor or thermal
contact (NC contact).
ƒ An ”open” cable acts like an antenna and can cause faults at the drive
controller.
 Danger!
ƒ All control terminals are only base-insulated (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. 5.6-3 Circuit diagram of motor connection with PTC thermistor or thermal contact (NC
contact) at T1, T2
Motor with PTC thermistor or
thermal contact (NC contact)