Lenze ECSCSxxx - Manual (Page 342)

Function library
Speed (speed control)
Holding brake control
12
l
342 EDBCSXS064 EN 4.0
12.27.4.2 Opening holding brake
A LOW level on the input SPEED−BRK.SetBrake (7411/10 = FALSE) immediately sets the
output SPEED−BRK.SetCInh to LOW (controller inhibit is deactivated). At the same time, the
output SPEED−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 SPEED−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 SPEED−BRK.SpeedThreshold (C7431/9) is
recognised before the brake opening time has expired, the signals SPEED−BRK.SetQSP and
SPEED−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. 12−32 Signal characteristic − opening of holding brake
 SPEED−BRK.SetBrake
‚ SPEED−BRK.SetCInh
ƒ SPEED−BRK.SetQSP
„ SPEED−BRK.MStore
SPEED−MCTRL.MAct
† SPEED−BRK.Out
‡ SPEED−BRK.MSetOut
0 SPEED−MCTRL.MAct
1
Brake opening time (C0196)