Setting For Holding Brakes - YASKAWA SGM H Series User Manual

Table of Contents

8.3.4 Setting for Holding Brakes

The holding brake is used when a SERVOPACK controls a vertical axis. In other words, a servomotor with

brake prevents the movable part from shifting due to gravity when the SERVOPACK power goes OFF. (Refer to

8.1.4 Servomotor with Brakes.)

Vertical Shaft

Holding brake

Prevents the servomotor

from shifting when

the power is OFF.

1. The brake built into the servomotor with brakes is a deenergization brake, which is used only to hold and

cannot be used for braking. Use the holding brake only to hold a stopped motor. Brake torque is at least

120% of the rated motor torque.

2. When operating using only a speed loop, turn OFF the servo and set the input reference to 0 V when the

brake is applied.

3. When forming a position loop, do not use a mechanical brake while the servomotor is stopped because

the servomotor enters servolock status.

(1) Wiring Example

Use the SERVOPACK contact output signal /BK and the brake power supply to form a brake ON/OFF circuit.

The following diagram shows a standard wiring example.

Power supply

BK-R Y: Brake control relay

Brake power supply Input voltage 200-V models: LPSE-2H01

∗ 1 and ∗ 2 are the output terminals allocated with Pn50F.2.

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Shaft with External Force Applied

Prevents the servomotor from

shifting due to external force.

Brake power supply

Input voltage 100-V models: LPDE-1H01

Surge suppressor

(manufactured by

Okaya Electric

Industries Co., Ltd.)