Lenze ECSCSxxx - Manual (Page 362)

Function library
Torque (torque control)
Holding brake control
12
l
362 EDBCSXS064 EN 4.0
12.28.5.2 Opening the holding brake
A LOW level on the input TORQUE−BRK.SetBrake (C7511/4 = FALSE) immediately sets the
output TORQUE−BRK.SetCInh to LOW (controller inhibit is deactivated). At the same time,
the output TORQUE−BRK.MStore is set to HIGH. This signal can be used to let the drive
create a defined torque against the brake. The drive takes over the torque while the brake
is released. The signal is only reset after the brake opening time set in C0196 has lapsed.
After the brake opening time has lapsed, the output TORQUE−BRK.SetQSP is reset to LOW.
This signal serves to e. g. release the setpoint integrator after the brake opening time has
expired.
If an actual speed value higher than the value at TORQUE−BRK.TorqueThreshold (C7531/9)
is recognised before the brake opening time has expired, the signals TORQUE−BRK.SetQSP
and TORQUE−BRK.MStore are immediately reset to LOW. Then, the drive can immediately
pass over to the speed−controlled operation.
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ECSXASA003
Fig. 12−37 Signal characteristic − opening of holding brake
 TORQUE−BRK.SetBrake
‚ TORQUE−BRK.SetCInh
ƒ TORQUE−BRK.SetQSP
„ TORQUE−BRK.MStore
TORQUE−MCTRL.MAct
† TORQUE−BRK.Out
‡ TORQUE−BRK.MSetOut
0 TORQUE−MCTRL.MAct
1
Brake opening time (C0196)