Lenze 4800 User Manual

Configuration
7-64
48XX/49XXSHB0399
7.4.5.1 Engage brake
The setting of QSP activates the function for the control of a holding brake. The
speed set-value of the drive follows the deceleration ramp of QSP (C105) until
reaching speed 0.
If the actual speed falls below the threshold C019, the control signal for the holding
brake will be activated. At the same time, a time element is activated and after the
time set under C195, the controller will be inhibited. This delay ensures that the
drive provides a holding torque until the brake is reliably activated. Under C318 the
field current can be reduced after the time set under C317.
4900Str049
&
C 051
>
1
Threshold
C 019
n
act
Q uick stop
QSP
IM P
(T rip )
Brake engagem ent
tim e C 1 9 5
H olding brake
engaged
Set controller
inhibit
FDO
FIG 7-22 Block diagram ’Engage brake’
4900Str050
t
t
t
t
t
QSP
n
act
engaged
n = 0
act
Threshold C 019
Brake engagem ent
tim e C 1 9 5
Tim e delay
C 317
Field current
reduction
C 318
Ctrl.
inhibit
Brake
FIG 7-23 Time diagram ’Engage brake’
Show/Hide Bookmarks

Lenze 4800 Specifications

General

Brand	Lenze
Model	4800
Category	Controller
Language	English