Table of Contents
Advertisement
Release 7/2009 Ver. 1.0
3.3.4
INTERFACING TO A MACHINE
The interfacing of a light curtain to a machine can be
achieved by using discrete components or by means of
an interface unit such as the Tapeswitch SRUB.
All the relays shown are safety relays with positively
guided contacts. If this circuit is implemented using
discrete components, it is essential that this type of relay
is used.
3.3.4.1 PNP Version Manual Reset
It may be possible to connect the GS-120 directly to the
Machinery Primary Control Elements (MPCE) as shown
in Figure 37. The GS-120 provides the Start/Restart
function necessary to avoid unintended initiation of the
machine.
TAPESWITCH CORPORATION
100 Schmitt Boulevard
Farmingdale, New York 11735
Note: N/C contacts of K1 and K2 are used for
monitoring purposes. If EDM is carried out elsewhere,
the reset switch should be connected between pin 2 and
pin 6 of the Receiver unit.
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 37 – PNP Version Manual Reset
31
Technical Manual: GS-120 Light Curtain Systems
IMPORTANT
Phone: 631-630-0442
Fax: 631-630-0454
www.tapeswitch.com
Advertisement
Table of Contents
