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Brake on timing, Holding brake setting – Yaskawa FSP Amplifier User Manual

Page 127

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FSP Amplifier User’s Manual

Chapter 5: Parameter Settings and Functions

5-60

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Brake ON Timing

If the equipment moves slightly due to gravity when the brake is applied,
set the following parameter to adjust brake ON timing.

Parameter

Signal

Setting (10 ms)

Control Mode

Pn506

Brake Reference Servo
OFF Delay Time

Range: 0 to 50
Default Setting: 0

Speed, Torque,
Position Control, and
Programming

This parameter is used to set the output time from the brake control signal
/BK until the servo OFF operation (servomotor output stop) when a
servomotor with a brake is used.

/S-ON input
(CN1-40)

/BK output

Servo ON/OFF
operation
(Servom otor
ON/OFF s tatus

Servo ON

Release brake

Servo OFF

Servomotor OFF

Servo OFF
time delay

With the standard setting, the servo is turned OFF when the /BK signal
(brake operation) is active. The equipment may move slightly due to
gravity depending on equipment configuration and brake characteristics. If
this happens, use this parameter to delay servo OFF timing.
This setting sets the brake ON timing when the servomotor is stopped. Use
Pn507 and 508 for brake ON timing during operation.

Note:

The servomotor will turn OFF immediately if an alarm occurs. The equipment may move due to gravity in
the time it takes for the brake to operate.

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Holding Brake Setting

Set the following parameters to adjust brake ON timing so the holding
brake is applied when the servomotor stops.

Parameter Signal

Setting

Control

Mode

Pn507

Brake Reference
Output Speed Level

Range: 0 to 10000 (rpm)
Default Setting: 100 (rpm)

Speed, Torque,
Position Control, and
Programming

Pn508

Timing for Brake
Reference Output
during Motor Operation

Range: 10 to 100 (10 ms)
Default Setting: 50 (10 ms)

Speed, Torque,
Position Control, and
Programming

Set the brake timing to be used when the servo is turned OFF by input
signal /S-ON (CN1-40) or when an alarm occurs during motor operation.