158 Options CG Drives & Automation 01-7318-01r1
13.9 Standby supply board
option
The standby supply board option provides the possibility of
keeping the communication system up and running without
having the 3-phase mains connected. One advantage is that
the system can be set up without mains power. The option
will also give backup for communication failure if main
power is lost.
The standby supply board option is supplied with external
±10% 24 V
DC
protected by a 2 A slow acting fuse, from a
double isolated transformer. The terminals X1:1, X1:2 (on
size E to F) are voltage polarity independent.
Fig. 99 Connection of standby supply option on frame sizes E,
E2, F and F2.
Part number Description
01-3954-00
Standby power supply kit for after
mounting.
Not for frame sizes D & D2
X1
terminal
Name Function Specification
1 Ext. supply 1
External, AC drive
main power
independent,
supply voltage for
control and
communication
circuits
24 V
DC
or V
AC
±10% Double
isolated
2 Ext. supply 2
X1:1 Left terminal
X1:2 Right terminal
X1