Extended Brake Control - Siemens Sinamics S120 Function Manual

Speed setpoint monitoring
● p2150[D] Hysteresis speed 3
● p2151[C] CI: Speed setpoint
● p2161[D] Speed threshold value 3
● r2198.4 BO: ZSW monitoring 2, |n_setp| ≤ p2161
● r2198.5 BO: ZSW monitoring 2, n_setp < 0
7.3

Extended Brake Control

Features
● Forced brake release (p0855, p1215)
● Application of brake for a 1 signal "unconditionally close holding brake" (p0858)
● Binector inputs for releasing/applying the brake (p1218, p1219)
● Connector input for threshold value for releasing/applying 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)
● Application of brake after "Enable speed controller" signal has been canceled (p0856)
Brake control options
The "Extended brake control" function allows complex braking control for e.g. motor holding
brakes and operational brakes.
The brake is controlled as follows (the sequence reflects the priority):
● 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.
Drive functions
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
Function modules
7.3 Extended Brake Control
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