phytron
+ U
GND
B
Fig. 17:
2-pole Phoenix connector MSTB 2,5/2-GF-5,08 X1
Attention:
Do not interchange the connections! The MCD is
not
protected against reverse
polarity.
5.1 Insulation Overview
Fig. 18:
Insulation MCD
The power stage must be operated with protective measure PELV.
The transformer should be constructed with reinforced or double insulation.
The insulation of the MCD fulfills the requirements of a basic insulation for non-mains-
circuits for voltages up to 141 V acc. to EN 50178.
The device has been designed for degree of pollution 2 acc. to EN 50178.
The IO signals on connector X3 are optically insulated and safely insulated to withstand
voltages up to 800 V
DC
.
The signals RS485 on X4 and X5 ServiceBus connectors are electronically insulated from
the motor voltage by a separate DC/DC-converter (withstand voltage 1000 V
DC
).
Devices connected to MCD for control or communication should have reinforced
or double insulation acc. to EN 50178.
21
MA 2102-A005 GB
