System Manual HS3A-H21M4
10
Operating
distance
Actuator
Operating
distance
Actuator
Flush mounting
Surface mounting
Installation
Caution!
Safety switches must not be bypassed, turned away, removed or otherwise
rendered ineffective.
Observe EN ISO 14119:2013, section 7, for information about reducing the
possibilities for bypassing an interlocking device.
Caution!
Risk of damage to device and malfunctions as a result of incorrect installation.
HS3A and actuators must not be used as an end stop.
Observe EN ISO 14119:2013, sections 5.2 and 5.3, for information about
fastening the safety switches and the actuator.
Important!
From the assured switch-off distance S
ar
, the safety outputs are safely shut
down. (Refer to page 28.)
When mounting several HS3A observe the stipulated minimum distance to
avoid mutual interference.
If the actuator is installed flush, the switching distance changes as a function
of the installation depth and the safety guard material. For this purpose, the
operating distance should be checked after installation.
Note the following points:
Actuator and HS3A must be easily accessible for inspection and replace-
ment.
The switching operation must only be triggered by the specific actuator
designated for this purpose.
min. 80mm
Figure 2
Figure 3
