Siemens SINAMICS G220 - Safety Control Word 1 and Safety Status Word 1

14.12.9.4 Safety control word 1 and safety status word 1
Overview
The higher-level control activates the Safety Integrated Functions of the converter using safety
control word 1 (S_STW1).
The converter signals the status of the Safety Integrated Functions to the higher-level control
using safety status word1 (S_ZSW1).
Description of function
Safety control word 1 (S_STW1)
Failsafe control → Converter
Bit Safety Integrated
Function
Explanation
00 STO 1 Deselect STO
0 Select STO
01 SS1 1 Deselect SS1
0 Select SS1
02, 03 Reserved
04 SLS 1 Deselect SLS
0 Select SLS
05, 06 Reserved
07 Failsafe acknowl‐
edgment
0 -
1→0 Acknowledge "Internal event" for a 1→0 signal change
08 Reserved
09 SLS limit value bit 0 Select SLS limit value  Bit1 Bit0
SLS1
SLS2
SLS3
SLS4
0
0
1
1
0
1
0
1
10 SLS limit value bit 1
11 Reserved
12 SDI positive 1 Deselect SDI with positive direction of rotation
0 Select SDI with positive direction of rotation
13 SDI negative 1 Deselect SDI with negative direction of rotation
0 Select SDI with negative direction of rotation
14 Reserved
15 SSM 1 Deselect SSM
0 Select SSM
Functions
14.12Safety Integrated
SINAMICS G220 converter
686 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB