Wegner Crane CFW500 series Applications Manual - page 51
Parameters Description
Crane | 51
3.12 BRAKE CONTROL
This
parameter group allows the user to configure the crane brake operation, which can be performed through
the digital output DO1, DO2, DO3, DO4 and/or DO5, as described in the section 3.9.
3.12.1 Vertical
P1041 – Brake Release Frequency Threshold
Adjustable
0.0 to 500.0 Hz
Factory Setting: 4.0 Hz
Range:
Proprieties:
Access groups via HMI:
SPLC
Description:
This parameter defines the motor frequency threshold to release the brake with load hoisting or load lowering
commands. In other words, if the total speed reference (as motor frequency) after the ramp is higher than or
equal to the adjusted value, then the brake release command is permitted. It is also necessary that the other
conditions be satisfied for effectively commanding the brake release.
NOTE!
A setting of “0.0 Hz” disables the motor frequency verification for the brake control.
P1042 – Load Hoisting Current Threshold
P1043 – Load Lowering Current Threshold
Adjustable
0.0 to 200.0 A
Factory Setting: P1042 = 0.0 A
Range:
P1043 = 0.0 A
Proprieties:
Access groups via HMI:
SPLC
Description:
These parameters define the motor current thresholds to release the brake with hoisting (P1042) or lowering
(P1043) commands. In other words, if the actual motor current is higher than or equal to the adjusted value,
then the brake release command is permitted. It is also necessary that the other conditions be satisfied for
effectively commanding the brake release.
NOTE!
A setting of “0.0 A” disables the motor current verification for the brake control.
P1044 – Load Hoisting Torque Threshold
P1045 – Load Lowering Torque Threshold
Adjustable
0.0 to 350.0 %
Factory Setting: P1044 = 50.0 %
Range:
P1045 = 30.0 %
Proprieties:
Access groups via HMI:
SPLC
Description:
These parameters define the motor torque thresholds to release the brake with hoisting (P1044) or lowering
(P1045) commands. In other words, if the actual motor torque is higher than or equal to the adjusted value, then
the brake release command is permitted. It is also necessary that the other conditions be satisfied for effectively
commanding the brake release.
NOTE!
A setting of “0.0 %” disables the motor torque verification for the brake control.