Settings; Operation And Operational States; Maintenance And Repair - Stahl 9170/*0 Betriebsanleitung

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7.3

Settings

deactivated *)
OFF
Channel 1
1
2
Channel 2
*) Default factory setting
Changing settings via DIP switches during operation is also permitted in Zone 2 and on
circuits carrying intrinsically-safe input signals.
8

Operation and operational states

Input
Line fault detection LF = deactivated
Proximity switch high
impedance / Contact:
open / open circuit
Proximity switch low
impedance / Contact:
closed / short circuit
Line fault detection LF = activated
Open circuit
Proximity switch high
impedance / Contact:
open
Proximity switch low
impedance / Contact:
closed
Short circuit
9

Maintenance and repair

It is recommended that all repairs to our devices be carried out by R. STAHL.
In exceptional cases, repair may be performed by approved third-parties.
The devices are maintenance-free.
Troubleshooting chart:
Error detection
"PWR" LED does not lit
"LF" LED lights all the time
LED "OUT" lights but the
state of operation at the
Line fault detection (LF)
activated
ON OFF
LF1
1
INV1
LF2
2
INV2
Input current
Relay not energized /
 1.2 mA
I Electronic output
E
deactivated
Relay energized /
 2.1 mA
I
E
Electronic output activated
Relay not energized /
 0.05...0.35mA
I Electronic output
E
deactivated
Relay not energized /
= 0.35...1.2 mA
I Electronic output
E
deactivated
Relay energized /
= 2.1...5 mA
I
E
Electronic output activated
Relay not energized /
 100..360 
Electronic output
R
E
deactivated
Malfunction cause(s)
Power supply failure
Device fuse is defective
Polarity reversal
Switching element is not connected
correctly – short circuit or disruption
Switching element does not work in
compliance with NAMUR
The exchangeable terminals are
mixed up.
Operating Instructions
Line of action inverted (INV)
OFF *)
ON OFF ON
LF1 LF1
1
INV1 INV1
LF2 LF2
2
INV2 INV2
Output state
for "line of action inverted" (see 7.3)
OFF
Relay energized /
Electronic output activated
Relay not energized /
Electronic output
deactivated
Relay not energized /
Electronic output
deactivated
Relay energized /
Electronic output activated
Relay not energized /
Electronic output
deactivated
Relay not energized /
Electronic output
deactivated
Corrective action
Check power supply.
If device fuse is defective, send device in for
repair.
Connect the power acc. to operating guide
Please verify that the connection is established
correctly.
Please apply the mode of connection for volt-
free contacts as described in 7.2 .
Please connect the terminals to the predefined
socket.
Switching Repeater Type 9170
ON
OFF ON
LF1
1
INV1
LF2
2
INV2
ON
21