YASKAWA JUSP-MD D01A Series User Manual page 93

 If the coil current of NC dynamic brake contactors is 300 mA or higher, obtain an NO relay
that can switch the contactor coil current and voltage and a power supply for the contactor
coil.
The following example shows connecting dynamic brake resistors for the SERVOPACK for one winding.
When connecting dynamic brake resistors for actual operation, refer to the following figure and connect resis-
tors for two windings.
SERVOPACK
CN1
47
45
DU
DV
DW
CN115
24 V
DB
DB24
DBON
0 V
DB
Dynamic brake contactor
(Auxiliary contacts)
Power supply
for contactor coil
NO relay
Power supply
for contactor
Main circuit surge
coil
absorption unit
Coil surge
absorption unit
3.9 Selecting and Connecting a Dynamic Brake Unit
For I/O
power supply
24 V 0 V
Dynamic brake resistor
3
3-47