Drive control and features
55
Mechanical brake control
The program supports the use of a mechanical brake to hold the motor and load at
zero speed when the drive is stopped or not powered.
Mechanical brake control (with or without acknowledgement) is activated by
parameter 35.01 BRAKE CONTROL. The acknowledgement (supervision) signal
can be connected to, for example, a digital input. The brake on/off value is reflected
by 3.15 BRAKE COMMAND, which should be connected to a relay (or digital)
output. The brake will open upon drive start after the delay 35.03 BRAKE OPEN
DELAY has elapsed and requested motor start torque 35.06 BRAKE OPEN TORQ is
available. The brake will close after motor speed decreases below 35.05 BRAKE
CLOSE SPD and the delay 35.04 BRAKE CLOSE DLY has elapsed. When the
brake close command is issued, the motor torque is stored into 3.14 BRAKE TORQ
MEM.
Note: The mechanical brake must be opened manually before the motor ID run.
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