Lenze 8400 StateLine - Manual (Page 394)

8 Basic drive functions (MCK)
8.2 Internal interfaces | System block "LS_MotionControlKernel"
394
Lenze · 8400 StateLine · Reference manual · DMS 12.0 EN · 06/2014 · TD05/TD14
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
bMBrakeStartValue2
BOOL
(from version 11.00.00)
Holding brake control :
Selection of the torque feedforward control value
 Feedforward control of the motor before release
FALSE Starting value 1 is active (see the following figure).
TRUE Starting value 2 is active (see the following figure).
Creation of the feedforward control value for the release process of the brake:

Signal path for motor control with feedback
 Signal path for motor control without feedback
 Feedforward control value
 C02581/1 : Switching threshold
 C02581/2 : Hysteresis for release
 C02581/3 : Hysteresis for application
 C02581/4 : Starting value 1 for manual feedforward control
 C02581/5 : Starting value 2 for manual feedforward control
 C02582/Bit 4 : Selection of the feedforward control value (automatic/manual
selection)
nMBrakeAddValue_a
INT
(from version 11.00.00)
Holding brake control :
Additive feedforward control value (speed or torque) in [%] for torque feedforward
control when the respective control mode is started
• For speed control: 100 % ≡ reference speed ( C00011 )
• For torque control: 100 % ≡ maximum torque ( C00057 )
 Feedforward control of the motor before release
bMBrakeApplied
BOOL
(from version 11.00.00)
Holding brake control :
Input for status detection via switching contacts at the brake
• Only effective if bit 5 in C02582 is set to "1".
FALSE Brake is released.
TRUE Brake is applied.
Identifier
Data type
Information/possible settings
0
t
Œ
Œ 
nSpeedSetValue_a
Œ Ž
Release brake
Close brake
bBrakeStartValue2
TorqueValue2
(+)nSetSpeed
(-)nSetSpeed
C02581/4
C02581/5
0
2
TorqueValue1
C02582 - Bit 4
nBrkAddValue_a
nMotorTorqueAct_a
T = 4 ms
S&H (Retain)

‘

1
0
0
1
1