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3 . Principle
3.1 keeping the doors in the closed position (machine) or in the open position (fire)
The electromagnetic lock acts as a safety sensor with a controllable hold using an electric control.
We have the advantage of offering both types of interlock, in off or on position. This product is used in
cases where the door can be subjected to shocks and vibrations to prevent it from triggering the safety.
Versions are adapted to interlocking.
3.2 Interlocking
For safety interlocking applications, we offer "OP" versions that add compliance with ISO 14119. In this
case, the use of the sticking with off power version is recommended. The holding force makes it possible
to protect the operator during the stopping phase of an inertial movement whose duration is less than
two seconds. The guaranteed force is called FZh.
4. Operation of OP versions
4.1 EOP version: interlocking with power off
- Door closed and locked
EOP
0V +24V
contact
open
•
Upon opening request (pin 8 powered), the safety contacts open
•
The diagnostic contact (pin 3) reproduces the status of the door: sends the voltage if the door
opens, regardless of the opening command
•
The EOP version is recommended for machine safety because it preserves safety in case of
power failure
4.2 ROP version: interlocking with power on
- Door closed and locked
ROP
0V +24V
contact
closed
•
Upon opening request (pin 8 deactivated), the safety contacts open
•
The diagnostic contact (pin 3) reproduces the status of the door: sends the voltage if the door
opens, regardless of the opening command
•
The ROP version can be used for machine safety according to the risk analysis
SM1 AND SM2 SERIES
Hold and interlock
Open request, closed door
0V +24V
1
5
4
6
3
2
24 VDC
7
8
LATCH
Open request, closed door
0V +24V
5
1
4
6
3
2
24 VDC
7
8
LATCH
1
5
4
6
3
2
24 VDC
7
8
LATCH
contact
closed
5
1
4
6
3
2
24 VDC
7
8
LATCH
contact
open
Door open
0V +24V
1
4
2
24 VDC
7
8
LATCH
contact
open
Door open
0V +24V
1
4
2
24 VDC
7
8
LATCH
contact
open
5
6
3
5
6
3
4
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