Lenze 9400 - Manual (Page 532)

11 Basic drive functions
11.12 Brake control
532
Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
11.12.2.6 Torque feedforward control
In automatic operation (mode 2/12) the brake control offers the possibility of precontrolling the
required torque of the drive when the brake is released.
Via C02588 first the basic selection on whether a parameterised starting torque or the torque
memorised during the last application process is to be used for the feedforward control.
Feedforward control with parameterised starting torque
[11-38] Feedforward control with parameterised starting torque

Note!
The torque is precontrolled for one second. During this time, the actual torque must have
reached 90 % of the set torque, otherwise a fault is tripped!
The torque feedforward control is also supported for the V/f control
(from software
version V3.0) .
 C02586 : Starting torque 1
 C02587 : Starting torque 2
 C02588 : Source of starting torque
• When C02588 = 0, a change-over between
two starting torques is possible via input
BRK_bStartingTorque2:
• BRK_bStartingTorque2 = FALSE: Starting
torque 1 ( C02586 ) is used.
• BRK_bStartingTorque2 = TRUE: Starting
torque 2 ( C02587 ) is used.
1
0
BRK_bStartingTorque2
C02586
Œ

C02587
1
0
C02588 = 0
Ž
S&H
CTRL
Speed controller