7
UK
Terminal
Connection
Description
1
L+
If a VSP or IEPE sensor is used
24 V DC ± 20 %
2
L-
3
OU 1
Early warning output
4
OU 2
Main alarm output
5
IN 1
Process value input 1
6
GND1
7
IN 2
Process value input 2
8
GND 2
5.2.1 Wiring of the sensors 1...4 (S1...S4) according to the sensor
Sensor input
Use
S1 S2 S3 S4
VSA
VSP
IEPE
0���20 mA
9
16 20 24
BN
Sensor supply 9 V
Do not use Do not use
Do not use
10 15 19 23
WH
Current input 0���10
mA
WH cur-
rent input
IEPE
Current input
0���20 mA
11 14 18 22
BU
GND
BK GND
GND IEPE
GND
12 13 17 21
BK
Self-test output
Do not use Do not use
Do not use
►
Protect the supply voltage externally (max� 2 A)�
The ground GND of the DC supply is directly connected with the ground GND of the
sensor supply� The SELV criteria must therefore be met for the DC supply (safety
extra-low voltage, circuit electrically isolated from other circuits, not grounded)�
If the DC circuit is to be grounded (e�g� due to national regulations), the PELV criteria
must be adhered to (protective extra-low voltage, circuit electrically isolated from
other circuits)�
