Werbung
Verfügbare Sprachen
Verfügbare Sprachen
Safety Position Switch
with locked engagement, metal enclosed
Instructions
!
WARNING
HAZARDOUS VOLTAGE.
Can cause electrical shock
and burns.
Disconnect power before proceeding
with any work on this equipment.
Reliable functioning of the equipment is only ensured with certified
components.
IMPORTANT NOTICE
The products described herein are designed to be components of a cus-
tomized machinery safety-oriented control system. A complete safety-
oriented system may include safety sensors, evaluators, actuators and
signaling components. It is the responsibility of each company to con-
duct its own evalution of the effectiveness of the safety system by trai-
ned individuals. Siemens AG, its subsidiaries and affiliates (collectively
"Siemens") are not in a position to evaluate all of the characteristics of
a given machine or product.
Siemens accepts no liability for any recommendation that may be imp-
lied or stated herein. The warranty contained in the contract of sale by
Siemens is the sole warranty of Siemens. Any statements contained
herein do not create new warranties or modify existing ones.
Installation
Fig. I:
Dimension drawings (dimensions in mm).
Mounted on a flat surface with three M5 screws
(1.5 to 2 Nm).
Always make use of the plain washers and spring washers.
The device can be mounted in any position.
Cable cross-sections and tightening torque
2 X 2.5 mm²
2 X 1.5 mm²
The cable glands (M20x1.5 resp. Pg 13.5) must be carefully
sealed so as not to reduce the degree of protection IP 67.
Close unused gland with cap.
Nominal travel
31-32
43-44
31-32
43-44
Electromagnet
ON
Legend:
Contact open
Contact closed
1 to 1.2 Nm
21-22
13-14
31-32
Protective device
43-44
31-32
Locking device
43-44
Electromagnet
OFF
Direction of actuation
Order No.: 3ZX1012-0SE38-1AA1
Fig. II:
Locking types
• Locking with spring force (closed-circuit princi-
ple)
Actuator inserted and mechanically locked. It is unlocked
by applying voltage to the magnet or manually by means
of the auxiliary release if the power fails or by means of
the key (depending on the version).
- Auxiliary release, unlocking by means of the key and
emergency unlocking are only permitted if the tumbler
fails.
- Unlocking by means of the key:
Auxiliary release by an authorized person turning the
key causes the tumbler to be unlocked. The actuator
is enabled for withdrawing.
Turning the key in the opposite direction after the
dangerous situation has been rectified causes the
device to return to the normal operating status. The
key can be removed.
- Emergency unlocking:
Manual actuation of the EMERGENCY pushbutton by
any person in the danger zone causes the tumbler to
be unlocked. The actuator is enabled for withdrawing.
An authorized person turning the key (clockwise) after
the dangerous situation has been rectified causes the
device to return to the normal operating status. The
key can be removed.
SLM safety switches with the emergency unlocking
option must be installed inside the danger zone. The
emergency unlocking function is only allowed to be
activated in order to leave the danger zone in the
event of a system failure.
• Locking with electromagnetic force (open-circuit
principle)
Actuator unlocked. It is locked by applying voltage to the
magnet.
Fig. III:
Circuit states
Fig. IV:
Sketched circuit diagram
Fig. V:
LEDs
Versions 3SE.8..-.XX20, 3SE.8..-.XX32 only
3SE28.., 3SE38..
English
3
Werbung
