Siemens SINAMICS S150 - Control of STO and SS1 Via Terminals on the Control Unit and the Motor;Power Module; General Information; Control Signals by Way of Terminals on the Control Unit and Motor;Power Module

Controlling the safety functions
7.3 Control of "STO" and "SS1" via terminals on the Control Unit and the Motor/Power Module
Safety Integrated
Function Manual, 05/2010, A5E03264275A
139
7.3 Control of "STO" and "SS1" via terminals on the Control Unit and the
Motor/Power Module
7.3.1 General information
7.3.1.1 Control signals by way of terminals on the Control Unit and Motor/Power Module
Features
● Only for the STO, SS1 (time-controlled) and SBC functions
● Dual-channel structure via two digital inputs (Control Unit/power unit)
● A debounce function can be applied to the terminals of the Control Unit and the Motor
Module to prevent incorrect trips due to signal disturbances or asymmetrical test signals.
The filter times are set using parameters p9651 and p9851.
● Different terminal blocks depending on the format
● Automatic AND operation of up to 8 digital inputs (p9620[0..7]) on the Control Unit for
chassis format power units connected parallel switching
Overview of the terminals for safety functions
The different power unit formats have different terminal designations for the inputs of the
safety functions. These are shown in the following table.
Table 7- 4 Inputs for safety functions
Module 1. Switch-off signal path
(p9620[0])
2. Switch-off signal path EP terminals
Control Unit
CU320-2 DP
X122.1....6 / X132.1…6
DI 0...7/16/17/20/21
Single Motor Module
booksize
(see CU320-2 DP) X21.3 and X21.4 (on the
Motor Module)
X21.3
X21.4
Single Motor Module/
Power Module in
chassis format
(see CU320-2 DP) X41.1 and X41.2 X41.1
X41.2
Double Motor Module
booksize
(see CU320-2 DP) X21.3 and X21.4 (motor
connection X1)/X22.3 and
X22.4 (motor connection X2)
(on the Motor Module)
X21.3
X21.4
X22.3
X22.4