YASKAWA Sigma-V Series User Manual page 101

Using NC Contacts for the Dynamic Brake Contactor
SERVOPACK
CN1
47
45*
DU
DV
DW
CN115
24 V
DB
DB24
DBON
0 V
DB
∗
The above figure is for using a dynamic brake contactor with NC contacts. The dynamic brake answer signal (a signal
from NC auxiliary contacts) is input to CN1-45. To indicate an error if the input signal to CN1-45 turns OFF (open)
while the dynamic brake is activated, the Pn515 parameter in the SERVOPACK must be set to n. E
dynamic brake answer signal is not used, Pn515 is set to n. 8
Note 1. If you assign more than one signal to the same input circuit, OR logic will be used and any of the input signals
will cause the circuit to operate. This may result in unexpected operation.
2. The maximum current for DB24 and DBON is 300 mA.
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.
SERVOPACK
CN1
47
45
DU
DV
DW
CN115
24V
DB
DB24
DBON
0V
DB
Dynamic brake contactor
(Auxiliary contacts)
Main circuit surge
absorption unit
Coil surge
absorption unit
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
3.8 Selecting and Connecting a Dynamic Brake Unit
For I/O
power supply
24 V 0 V
Dynamic brake resistor
(default setting).
For I/O
power supply
24V 0V
Dynamic brake resistor
. If the
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