Extended Brake Control - Siemens SINAMICS S120 Function Manual

Function modules

7.3 Extended Brake Control

7.3 Extended Brake Control
Features
● Forced brake release (p0855, p1215)
● Closing of brake for a 1 signal "unconditionally close holding brake" (p0858)
● Binector inputs for opening or closing the brake (p1218, p1219)
● Connector input for threshold value for opening and closing the brake (p1220)
● OR/AND block, each with two inputs (p1279, r1229.10, r1229.11)
● Holding and operational brakes can be activated
● Function for monitoring brake feedback signals (r1229.4, r1229.5)
● Configurable responses (A07931, A07932)
● Closing of brake after "Enable speed controller" signal has been canceled (p0856)
Brake control options
The "Extended brake control" function allows complex braking control, e.g. for motor holding
brakes and operational brakes.
The brake is controlled in the following way. The order shows the prioritization:
● Using parameter p1215
● Via binectors p1219[0...3] and p0855
● Using zero speed detection
● Via the connector interconnection, threshold value
For an AC drive with "Safe Brake Relay," the "Safe Brake Control" safety function requires
that the type of the brake control be set in parameter p1278, to "Brake control with diagnostic
evaluation" (p1278 = 0). This parameter is automatically set for booksize components.
Commissioning
This function module can be activated via the commissioning wizard.
The activation can be checked in parameter r0108.14.
Unless you change the default settings, the extended brake control function behaves in
exactly the same way as the simple brake control function.
Brake control will be activated automatically (p1215 = 1) when the Motor Module has an
internal brake control and a connected brake has been found.
If no internal brake control is available, the control can be activated using a parameter
(p1215 = 3).
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Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
Drive functions