Braking Module" Function Module - Siemens SINAMICS S120 Function Manual

4.21

"Braking Module" function module

Features
S Braking the motor without any possibility of regenerating into the line supply
(e.g. power failure)
S Fast DC link discharge (booksize design)
S The braking module terminals are controlled via the drive object infeed
(booksize and chassis designs)
S Controlling up to 8 Braking Modules in a parallel circuit configuration
S Acknowledging faults at the Braking Module
Description
The "Braking Module" function module can be activated in the infeed drive object.
The appropriate binectors must be interconnected via digital inputs/outputs
(e.g.: Control Unit, TM31 or TB30) with the Braking Module.
In order to obtain the maximum power of a Braking Module, the Vdc_max control
must be disabled.
Active/Smart/Basic
Infeed
BO: Inhibit Braking Module /
fault acknowledgment
r3861 .0
r3861.1
BO:Braking Module
DC link fast discharge
r3864.0
r3864.1
BI: Braking Module
Pre-alarm I*t trip
p3865 [0]
(0)
p3865 [1]
(0)
BI: Braking Module fault
p3866 [0]
(0)
p3865 [1]
(0)
Fig. 4-17 Example of controlling two Booksize Braking Modules
© Siemens AG 2006 All Rights Reserved
SINAMICS S120 Function Manual, 03/2006 Edition
Control unit
p0738 X122 .7
(0)
X122 .10
p0740
(0)
p0739 X122 .8
(0)
p0741 X122 .11
(0)
X122 .1
r0722.0
X122 .3
r0722.2
X122 .2
r0722.1
X122 .4
r0722.3
Extended Functions
"Braking Module" function module
Braking Module
Braking Module
1
2
DI, inhibit Braking Module
fault acknowledgment
X21.1
DI, DC link fast
discharge
X21.2
DO , pre-alarm
I*t trip
X21 .3
DO, fault/Braking
Module inhibited
X21 .4
,
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