Figure 1-3 Trigger Connector Socket; Table 1-2 Trigger Connector Pin Assignments - Microscan MS-3000 User Manual

Chapter 1 Setup and Installation
Trigger Connector
The trigger connector (TRIG) is a 6-pin DIN socket
with a 240 degree 6-pin DIN plug. Pin assignments are shown in
6
5
4
3
Figure 1-3 Trigger
Connector Socket
Pin 1 is the input from the object detector. When operating the decoder in
external trigger mode, a toggle at this pin causes the decoder to begin a
read cycle.
Pin 2 of the trigger connector is a programmable relay driver. The MS-3000
software can be programmed to set this pin high or low upon a good read, a
no read, a good match, or a mismatch. This pin can source or sink 4 mA
(maximum) and can be used to drive a small relay to operate an alarm,
diverter, etc.
Microscan offers an optical object detector (P/N 99-440001-03) that plugs
directly into this connector and a user-customized trigger port connector (P/
N 20-600090-02).
Figure 1-4 shows examples of positive and negative external trigger inputs
that could be applied to the trigger connector. (Shown in untriggered state.)
1. Trigger sources other than the Microscan object detector can be used. Mechanical switches,
relays, etc.—which tend to be slow and bouncy and produce multiple trigger signals—are not
recommended unless equipped with optical sensors or filtered transitions (optical, Hall effect,
or DC solid state relays).
1-4
MS-3000 Single Head Decoder User's Manual
Table 1-2 Trigger Connector
Pin Assignments
1
Pin
Trigger Input +3 VDC
1
to + 24 VDC
TTL Relay driver output
2
TRIG
signal 5 VDC
2 3 +5 VDC
4 +12 VDC
5 Ground
6 Not used
1
(figure 1-3) that mates
table 1-2.
Function