YASKAWA Sigma-V Series User Manual page 70

Ac servo drives

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Using a Dynamic Brake Unit from Another Company

• Using NO Contacts for the Dynamic Brake Contactor

SERVOPACK

CN115

24 V

DB24

DBON

0 V

∗ The above figure is for using a dynamic brake contactor with NO contacts. The dynamic

brake answer signal (a signal from NO 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 multi-winding drive unit must be set to n.E. If the dynamic

brake answer signal is not used, Pn515 is set to n.8 (default setting).

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 unex-

pected operation.

2. The maximum current for DB24 and DBON is 300 mA.

4.6 Selecting and Connecting a Dynamic Brake Unit

CN1

Dynamic brake contactor

(Auxiliary contacts)

45*

For I/O

power supply

24 V

0 V

Dynamic brake resistor

Main circuit surge

absorption unit

Coil surge

absorption unit

4-27

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S-v series