Control Via Terminals On The Control Unit And The Power Unit - Siemens SINAMICS S120 Function Manual

Control of the safety functions

5.2 Control via terminals on the Control Unit and the power unit

5.2 Control via terminals on the Control Unit and the power unit
Features
● Only for the STO, SS1 (time-controlled) and SBC functions
● Dual-channel structure via two digital inputs (Control Unit/power unit)
● Different terminal strips depending on design
● Automatic ANDing of up to 8 digital inputs (p9620[0...7]) on the Control Unit with parallel
Overview of the safety function terminals for SINAMICS S120
The different power unit formats of SINAMICS S120 have different terminal designations for
the inputs of the safety functions. These are shown in the following table.
Table 5-1
Control Unit CU320
Single Motor Module
Booksize
Single Motor Module
Chassis
Double Motor Module
Booksize
Power Module Blocksize
with CUA31
Power Module Blocksize
with CU310
Power Module Chassis
with CU310
For further information about the terminals, see the Equipment Manuals.
Terminals for STO, SS1 (time-controlled), SBC
The functions are separately selected/deselected for each drive using two terminals.
● 1. Switch-off signal path (CU310/CU320)
● 2. Switch-off signal path (Motor Module/Power Module/CUA31)
Both terminals must be operated simultaneously, otherwise a fault will be issued.
58
configuration of chassis type power units
Inputs for safety functions
The desired input terminal is selected via BICO interconnection (BI: p9620[0]).
The input terminal is the "EP" ("Enable Pulses") terminal.
1. Switch-off signal path (p9620[0])
X122.1....4 / X132.1...4 (on the
CU320) digital input 0 to 7
(see CU320)
(see CU320)
(see CU320)
(see CU320)
X121.1...4 (on the CU310) digital
input 0 to 3
X121.1...4 (on the CU310) digital
input 0 to 3
Function Manual, (FHS) , 07/2007 Edition, 6SL3097-2AR00-0BP0
2. Switch-off signal path
(see Motor Modules / Power
Modules)
X21.3 and X21.4 (on the Motor
Module)
X41.1 and X41.2 (on the CIB)
X21.3 and X21.4 (motor
connection X1)/X22.3 and X22.4
(motor connection X2) (on the
Motor Module)
X210.3 and X210.4 (on the
CUA31)
X120.7 and X120.8 (on the
CU310)
X41.1 and X41.2 (on the CIB)
Safety Integrated