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Elevator Core Reference Guide

Motor Brake Control

As default Relay 2 is used to control the motors electromechanical brake, the Relay is rated for 250VAC, 30VDC, 5A.

The drive has 2 methods of motor brake control:

  1. When Brake Apply Speed (P5-03) = 0 drive will go through Zero Speed Hold (P9-22) before applying the brake.

  2. When Brake Apply Speed (P5-03) > 0 drive will apply brake as soon as SPEED <= BRAKE APPLY SPEED (P5-03) and will skip Zero Speed Holding time.

Parameter Number

Parameter Name

Units

Default

Available Settings

Access

Change During Run

Scaling

Size (Bytes)

CAN Register

CAN Sub Index

Modbus Register

P5-01

Brake Release Time

sec

0.5s

0.0 ... 5.0s

RW

Y

1 = 0.1 s

1

21F5h

0

501

P5-02

Brake Apply Delay

sec

0.2s

0.0 ... 5.0s

RW

Y

1 = 0.1 s

1

21F6h

0

502

P5-03

Brake Apply Speed

Hz / rpm / ft/s / m/s

0.00

0.00 ... P8-01

RW

Y

1 = 0.01Hz

2

21F7h

0

503

Sets the delay time, following the contactor Delay time (P3-01) in which it takes for the motor brake to be released (Relay 2) and then drive output frequency ramps up.

Sets the delay time, for the motor brake to apply (Relay 2 to open).

Sets the speed at which the drive will open Relay 2 and apply the motor brake.