Setting of the start speed for torque setting when opening the brake, particu-
larly suitable for drives without feedback.
Setting of the stop speed for the torque setting when closing the brake, the
sign determines the torque direction.
Setting of the precontrol torque as a percentage value of the rated motor
torque in the resolution parameterised in co84 torque resolution.
The resulting precontrol torque is thus dependent on co84 and dr09 rated
torque.
Precontrol torque = co26[3] * co84 * dr09
Example: co26[3] = 500 und co84 = 2:0.025
precontrol torque = 500 * 0.025 = 12.5% dr09
An analog value can also be used with an31 REF selector or an34 AUX se-
lector to configure the precontrol torque.
The cs21 pretorque mode must be set to "2: reference torque“ to use the pre
torque settings.
During opening the brake (co23) the I-component of the speed controller is
multiplied by this value.
After the co25 closing time has elapsed, the current limit is reduced to 0 dur-
ing this time.
Subsequently, a time with current limit 0 can be inserted.
4.2.4.1 Special features brake control for control type F6-A / S6-A
The detailed description of the brake control is contained in the instruction manual
for the safety module.
Control type F6-A / S6-A with safety module type 1:
The brake control is directly activated or deactivated on the safety module via co21
brake ctrl mode. If no brake is used, the channel should be deactivated.
The monitoring of the brake current can also be switched off with co82 ext. mod-
ules ctrl word. This prevents false tripping due to disturbances which can be cou-
pled into by the open brake cable. These settings are also found in sb28 safety
modul control word before they are transferred to the safety module. A power-on is
required after changing these settings.
Control type F6-A / S6-A with safety module type 3:
The complete configuration of the safe brake control occurs via the special editor
for the KEB safety module.
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