ABB AC500-S Safety User Manual page 147

Analog sensor (4 ... 20 mA), external sensor power supply
Sensor power supply on channel 1 (I0)
SIL/Cat./PL 1), 2)
SIL 3)
4 ... 20mA
Fig. 57: Circuit example AI581-S, analog sensor (4 ... 20 mA)
1)
- MTTFd = High, DC = Medium
2)
- Max. reachable (ISO 13849, IEC 62061, EN 954) ➔ without error exclusion (you can reach higher levels
up to PL e, SIL 3, Cat. 4 with error exclusion)
3)
- Max. reachable SIL acc. IEC 61508 (Type A components are required) ➔ without error exclusion (you
can reach higher levels up to SIL 3 with error exclusion)
30.03.2017
Sensor
24VDC
GND
AI581-S analog safety input module > Circuit examples
External 24 V DC (Sensor)
SIL 2/Cat.2/PL d
SIL 2
1.0 I0- PWR 2.0I0+
1.1 FE 2.1
1.2 I1- 2.2I1+
1.3 FE 2.3
1.4 2.4
ADDR
2.5
1.5
x10H
2.6
1.6
1.7 2.7
ADDR
1.8 UP 2.8UP
x01H
3
2 6
1.9 ZP 2.9ZP
1 7
0 8
F 9
A
ERR1
UP 24VDC 2W
1.0 2.0
1.1 2.1
1.2 2.2
1.3 2.3
1.4 2.4
1.5 2.5
1.6 2.6
1.7 2.7
1.8 2.8
1.9 2.9
AC500-S
AC500-S Safety Modules
AI581-S
3.0 I2- 4.0I2+
3.1 FE 4.1
3.2 I3- 4.2I3+
3.3 FE 4.3
3.4 4.4
4.5
3.5
3.6 4.6
3.7 4.7
3.8 UP 4.8UP
3.9 ZP 4.9ZP
ERR2
4SAI
Safety Analog Input
3.0 4.0
3.1 4.1
3.2 4.2
3.3 4.3
3.4 4.4
3.5 4.5
3.6 4.6
3.7 4.7
3.8 4.8
3.9 4.9
147