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Releasing the Brake
The inverter releases the brake (Terminal command BRKS: ON) after checking torque
generation of the motor, monitoring whether it applies both the output current and frequency
to the motor, which are higher than ones specified for the time long enough.
Function code
Name Data setting range
J68 Brake OFF current
0 to 200%:
Set it putting the inverter rated current at 100%.
J69 Brake OFF frequency 0.0 to 25.0 Hz
J70 Brake OFF timer 0.0 to 5.0 s
Turning-on the brake
To assure the service life of brake body, the inverter checks the motor speed lowering enough
less than one specified, monitoring that the run command turns OFF and the output frequency
lowers than one specified for the time long enough, and turn-on the brake (terminal command
BRKS: OFF.)
Function code
Name Data setting range
J71 Brake ON frequency 0.0 to 25.0 Hz
J72 Brake ON timer 0.0 to 5.0 s
• The braking signal control is only applicable to motor 1. If the motor switching
function selects motor 2, the braking signal always remains at state of turning-on.
• When an event such as an occurrence of alarm and turning the coast-to-stop
terminal command BX ON shuts down the inverter, the braking signal turns-on
immediately.
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