5
5.5 SIMODRIVE POSMO A functions
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Siemens AG 2013 All Rights Reserved
SIMODRIVE POSMO A User Manual (POS1) – 08/2013 Edition
5.5.13 Holding brake (from SW 1.4)
Using the brake sequence control, the axes can be held at standstill to
avoid undesirable motion.
The sequence control can be used both for motors with integrated hold-
ing brake as well as to control an external holding brake.
Holding brake for 75 W motors
75 W motors do not have an integrated holding brake.
An external holding brake can always be used. In this case, it is
controlled using an appropriately parameterized digital output.
Holding brake for 300 W motors
300 W motors are optionally available with integrated holding brake.
An external holding brake can always be used. In this case, it is
controlled using an appropriately parameterized digital output.
!
Warning
It is not permissible to use the integrated holding brake as working
brake, as generally it is only designed for a limited number of
emergency braking operations.
Axial forces may not be applied to the shaft – both when installing
and operating the system!
Current I
t
0
I
B
Voltage V
t
t
c1
Brake opened
t
0
= Opening time t
c1
= Closing time
U
B
Fig. 5-16 Terminology (time) for holding operation
Reader’s note
Technical data, refer to Chapter 2.6.2, Table 2-7.
Description
5 Description of the Functions
02.9904.0105.03
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