Lenze 9400 Bedienungsanleitung PDF herunterladen (Seite 542)

11 Basic drive functions

11.12 Brake control

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Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06

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11.12.5.2 Process when brake is released

The following process occurs when a basic function is requested which causes the drive to traverse:

1. The controller inhibit is deactivated.

2. The magnetic field required for the holding torque is created in the motor (is already available

when a synchronous machine is used).

3. The feedforward control torque is loaded into the speed controller.

4. If the actual torque has reached 90 % of the feedforward control torque:

• The output BRK_bReleaseBrakeOut is set to TRUE for releasing the brake.

• Monitoring of the motor brake control module is deactivated temporarily.

• Monitoring of the status input is deactivated temporarily (if switched active via C02583

).

• The brake opening time starts to elapse.

5. After the brake opening time has elapsed:

• The output BRK_bBrakeReleased is set to TRUE.

• The requested basic function is enabled.

6. After the additional waiting time set for the status monitoring in C02591

has elapsed:

• Monitoring of the motor brake control module is active again.

• Monitoring of the status input is active again (if switched active via C02583

).

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