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Design and Function
Solenoid locking units prevent opening of separating guards and keep
them closed as long as their is a risk of injury in the secured plant.
Attention!
!
Hazards must be ruled out before a key can be inserted and
the movable part of the guard can then be opened!
The solenoid locking unit is to be integrated into a system and connected
with a control unit so that the hazardous machine can run only when the
guard is locked and closed.
An access can only be opened after a release signal was sent by the
machine control to the YRX10A or YRX11A solenoid locking unit. The
actuator can only be removed from actuator module A and the access
opened after inserting the key in the key module.
On the base unit YRX11A also the second key must be extracted before
the guard can be opened. Key operation is forced. Key entry ins blocked
when the door is open. The key can be removed again after the access
was closed again. Only after removing the key is the solenoid locking
activated again and the machine can be restarted.
Key and magnet position are monitored by separate contacts.
YRX11A is usually used in the system in connection with additional
STS units and SAFEMASTER products (e.g. release by speed monitor
UH 5947, standstill monitor LH 5946 or speed/standstill monitor BH 5932).
The key with forced removal of the YRX11A unit can be used as protection
against lock-in.
Indication
LED red:
LED yellow/green:
Magnet energized
Separately controllable
Circuit Diagrams (YRX10A und YRX11A)
3
14
2
11
12
1
6
22
4
21
24
5
20
32
31
19
11
52
10
51
54
9
8
42
41
7
17
62
61
18
16
15
red
24
yellow
23
22
green
21
12
M11407_b
Fig. 1:
Guard locking in activated state:
solenoid interlocked,
key inserted
3
14
2
11
12
1
6
22
4
21
24
5
20
32
31
19
11
52
10
51
54
9
8
42
41
7
17
62
61
18
16
15
red
24
yellow
23
22
green
21
12
M11413_b
Fig. 3:
Guard locking in deactivated
state: magnet unlocked,
key inserted
20
SAFEMASTER STS-YRX10A, YRX10BM, YRX11A, YRX11BM / 05.12.19 en / 166A
3
14
2
11
12
1
6
22
4
21
24
5
20
32
31
19
11
52
10
51
54
9
8
42
41
7
17
62
61
18
16
15
red
24
yellow
23
22
green
21
12
M11410_b
Fig. 2:
Guard locking in deactivated
state: magnet unlocked,
key inserted
YRH10A, YRH11A
Mechanical switch
positions
Circuit diagram
3
2
3
1
6
4
6
5
19
20
11
9
11
10
7
8
17
18
De-energized
on trip
15
16
Open circuit
operation
15
16
closed
open
The state shown in Fig. 3 does not depend
on the control signal of the magnet.
If the control signal is applied (closed-
circuit current principle) and the key is
removed, the solenoid locking changes
to the state shown in Fig. 2.
If no signal is applied and the key is
removed the solenoid locking changes
to the state of Fig. 1
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