Manual MR 8
+
/ A 32-48
MINI
4.1 Isolation Overview
Fig. 12: MR 8 Isolation
The transformer should be constructed with reinforced or double insulation for
safe operation of the MR 8 with voltages up to 48 V.
The insulation of the minirack fulfills the requirements of a basic insulation for non-mains-
circuits for voltages up to 71 V acc. to EN 50178.
The device has been designed for degree of pollution 2 acc. to EN 50178.
The RS 485 signals at the ServiceBus connector are optically insulated by a separated
DC/DC converter from the motor voltage (withstand voltage 1000 V
DC
).
Devices connected to MR 8 for control or communication should have reinforced
or double insulation acc. to EN 50178.
MA 1233-A006 GB
22