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Operating instructions
Solenoid interlock

AZM 161 AS

EN

The connection to the AS-Interface system is realised through an M12 

connector. The M12 connector is A-coded. The wiring coniguration of 

the M12 connector is deined as follows (to EN 50295):

AUX +(P)

3

2

1

4

AS-Interface -

AS-Int

AUX -(P)

Functions and coniguration

5.1  Mode of operation of the safety outputs

The safety outputs of the AS-i safety monitor are enabled, when the 
following conditions are met:

• the actuator is inserted

• the solenoid interlock is locked

AZM 161 B ST-AS

The safety outputs of the AS-i safety monitor are enabled, when the 
following conditions are met:

• the actuator is inserted

AZM 161 BZ ST-AS

The safety outputs of the AS-i safety monitor are only activated, when 
both AS-i half-codes are enabled.

Half-code 1 (AS-i SaW bit 0,1) is enabled, when:

• the actuator is inserted

The solenoid interlock now can be locked.

Half-code 2 (AS-i SaW bit 2,3) is enabled, when:

• the solenoid interlock is additionally locked.

5.2  Magnet control

The control system with the AS-Interface Master can lock and unlock the 
solenoid interlock through the output bit 0 of the addressed AS-i slave 
AZM 161 AS. In the power to lock variant of the AZM 161 AS, the functio-
nal set of output bit 0 will cause the solenoid interlock to be locked. In the 
power to unlock variant of the AZM 161 AS, the functional set of output bit 
0 will cause the solenoid interlock to be unlocked.

5.3  Programming the slave address

The slave address is programmed through the M12 connector. Any 
address from 1 to 31 can be set by means of the AS-i bus master or a 
hand-held programming device.

5.4 

Coniguration of the safety monitor

Depending on the component used, the AZM 161 AS can be conigured 

in the ASIMON coniguration software with the following safety monitors 

(also refer to the ASIMON manual).

Dual-channel dependent with iltering

Suitable for: AZM 161 B ST-AS
The use of this safety-monitoring module is especially advantageous on 
safety guards bouncing or vibration against the mechanical stop upon 
closing.

•  Optionally with start-up test

•   Stabilisation time typically 0.5 up to 1.0 s

•   Synchronisation time typically 5.0 up to 10 s

The safety-monitoring module is only released after expiration of the 

stabilising time; the synchronization time always must exceed the 

stabilising time.

Double channel conditionally dependent

Suitable for: AZM 161 BZ ST-AS

•  Independent: In - 1

As long as the actuator remains inserted, the safety guard can be relo-
cked at any time, in which case the safety outputs are reactivated. The 
safety guard must not be opened.

The redundancy and the "Safety guard closed" signal are not 

tested in this coniguration. To test these conditions, additio

-

nal measures must be taken beyond the safety monitor.

Dual-channel dependent

Suitable for: AZM 161 Z ST-AS, AZM 161 B ST-AS, AZM 161 BZ ST-AS

•  Synchronisation time typically: 0.1 s; for AZM 161 BZ ST-AS ininite (∞)

 •  Optionally with start-up test

•   Optionally with local acknowledge

When the AZM 161 BZ ST-AS is used together with this safety-moni-
toring module for conducting the start-up test prior to every restart, the 
safety guard must be opened.

The coniguration of the safety monitor must be tested and 

conirmed by a qualiied and authorised safety expert/safety 

engineer. 

5.5  Status signal "safety release"

The "safety release" status signal from a Safety at Work slave can be 
cyclically queried by the control system through the AS-i master.  To 
that effect, the 4 input bits with the varying SaW code of a Safety at 
Work slave are evaluated through an OR operation with 4 inputs in the 
control system.

5.6  Read-out of the parameter port

The parameter port P0 to P3 of a solenoid interlock can be read out 
through the control interface of the AS-i master (see component de-

scription) by means of the "Write parameter" instruction (with hexadeci

-

mal value F). This (non-safe) diagnostic information from the relected 

parameters or the answer to a "Write parameter instruction" can be 
used by the user for diagnostic purposes or for the control programme.

Parameter bit

Condition = 1

Condition = 0

0

Actuator inserted. 
The actuator can 
now be locked.

No actuator detected

1

Actuator inserted and 
locked

Actuator not locked

2

Magnet voltage 
available

Magnet voltage not 
available

3

Locking/unlocking of 
the solenoid interlock 
blocked

Locking/unlocking of 
the solenoid interlock 
not blocked

Error message "locking/unlocking of the solenoid interlock blocked"

This error is transmitted, when the solenoid interlock no longer can be 
correctly locked or unlocked. The causes for this error can be: the safet 
yguard is not correctly closed, the actuator is deformed, the manual 
release is not correctly reset or the auxiliary voltage is missing. This 
error is transmitted as "periphery error" to the control system through 
the AS-i Master. A "periphery error" is shown on the AS-i device by the 

alternating red/green lashing of the AS-i Duo LED.

Summary of Contents for AZM 161 AS Series

Page 1: ...t is the responsibility of the manufacturer of a machine or plant to ensure the proper functionality of the entire machinery or plant The safety switchgear must be exclusively used in accordance with...

Page 2: ...atus can be evaluated through a PLC with AS Inter face master The safety related functions are enabled by means of the AS i safety monitor Interlocks with power to lock principle may only be used in s...

Page 3: ...100 ED Ambient conditions Ambient temperature 25 C 60 C Storage and transport temperature 25 C 85 C Relative humidity 30 95 no condensation Resistance to vibration 10 150 Hz amplitude 0 35 mm Resistan...

Page 4: ...endent Suitable for AZM 161 BZ ST AS Independent In 1 As long as the actuator remains inserted the safety guard can be relo cked at any time in which case the safety outputs are reactivated The safety...

Page 5: ...ng blocked 1 ON HC1 0 0 Flashes 1 0 1 1 Unlocking blocked 0 ON ON SaW code Flashes 1 1 1 1 HC1 AS i half code 1 AS i SaW bit 0 1 AZM 161 Z ST AS Z variant power to unlock spring operated locking Syste...

Page 6: ...d connections 6 2 Maintenance A regular visual inspection and functional test including the following steps is recommended 1 Check for a secure installation of the actuator and the switch 2 Remove par...

Page 7: ...n Directives Place and date of issue Wuppertal October 22 2009 Authorised signature Heinz Schmersal Managing Director Name of the safety component AZM 161 AS Description of the safety component Interl...

Page 8: ...Industrielle Sicherheitsschaltsysteme M ddinghofe 30 D 42279 Wuppertal Postfach 24 02 63 D 42232 Wuppertal Telefon 49 0 2 02 64 74 0 Telefax 49 0 2 02 64 74 1 00 E Mail info schmersal com Internet htt...

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