Commissioning; Connections; Engineering - Stahl 9170/*0 Betriebsanleitung

Operating Instructions
7

Commissioning

7.1

Connections

Types 9170/*0-1*-11
(24 V DC power supply)
Types 9170/*0-1*-21
(115/230 V AC power supply)
9170/... /20-11-.1
Channel 2
Channel 1
7.2

Engineering

a) Mode of connection for line fault identification (volt-free contacts
at the input)
Open circuit identification:
Short circuit identification:
The loading has to carry out in direct proximity of the contact.
b) Mode of connection for inductive loading at the output:
Inductive loadings have to be connected with a free
wheel diode.
We do not recommend to use a loading via varistor.
20
Switching Repeater Type 9170
Hazardous area
/10-11-.1 /20-10-.1
/20-12-.1
22 k in parallel
2,7 k in series
/10-12-.1
english
Safe area
2.7 k
k
22 k 
+
-