YASKAWA SGD7W - Page 328

14.1 Surge Absorbers (Varistors) and Diodes for Holding Brake Power Supplies
14-3
14
Other Peripheral Devices and Options
Circuit Diagrams
 Circuit for a Surge Absorber (Varistor)
A Surge Absorber (varistor) has no polarity.
 Circuit for a Diode
A Diode has polarity. Refer to the following figure for connections.
Holding Brake Power Supply Units are not provided by Yaskawa.
AC DC
Holding
brake
Surge
Absorber
(varistor)
Holding Brake
Power Supply
Unit
100 VAC or
200 VAC
Switching relay
for brake
+
-
AC
Holding
brake
Diode
Holding Brake
Power Supply
Unit
100 VAC or
200 VAC
Switching relay
for brake
Note