Release 7/2009 Ver. 1.0
Technical Manual: GS-120 Light Curtain Systems
TAPESWITCH CORPORATION
Phone: 631-630-0442
100 Schmitt Boulevard
32
Fax: 631-630-0454
Farmingdale, New York 11735
www.tapeswitch.com
3.3.4.2 PNP Version Auto Reset
The GS-120 can be used in Auto Restart mode as
shown in
Figure 38
. If this mode is selected, the Manual
Restart function must be provided elsewhere in the
machine safety control system (for example, in the
SRUB interface unit).
Note:
The connection through 41 and 42 is used for
external monitoring (EDM). If an alternative safety relay
is used which does not have N/C contacts for
monitoring, then connect pin 2 to pin 6 on the Receiver
unit.
IMPORTANT
A number of manufacturers produce units containing
circuits of this type. Care should be taken to ensure that
the inputs of these units can accept the PNP outputs of
the light curtain.
Figure 38 – PNP Version Auto Reset
