6
6.9
Motor holding brake
6-572
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SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
When ”controller enable” is issued, the speed controller is active and
controls with n
set
= 0.
The speed setpoints are only transferred after the brake opening time
has expired.
This is signaled using the ”status, controller enable” output signal.
The brake opening time should be selected, so that after the ”controller
enable” is issued, the speed controller becomes active when the motor
holding brake opens.
For all other settings, the control acts against the brake.
The following applies:
Brake opening time (P0851)
Time to open the holding brake
Speed–controlled
operation
Speed setpoint
Holding brake
Controller enable
t
ÄÄÄÄÄ
ÄÄÄÄÄ
t
t
t
t
P0851
Brake opening time
Time
to open the holding brake
Output signal
”status, controller
enable”
1
0
1
0
1
0
1
0
Output signal
”open holding brake”
Fig. 6-73 Opening the brake: Characteristics when issuing ”controller enable”
Open brake
Objective when
setting
the brake opening
time
6 Description of the Functions
01.99
06.04