Honeywell SYA14 Series Manual page 454

Safety light curtains
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Installation Instructions for the
Cable Pull limit Switch Indicators
GENERAL INFORMATION
The Normally-Open (NO) and Normally-Closed
(NC) terminals of the Cable Pull Limit Switch are
electrically isolated from each other. This means
you can use a common power source for both
control and indicator circuits with neon indicators or
separate power sources with LED indicators.
COMMON POWER SOURCE
For indicators rated at the same voltage as the
control circuit there are two wiring methods.
METHOD 1
Do not connect any other contacts between the
switch and the line or neutral. See Figure 1A and
Figure 1B.
MICRO SWITCH Sensing and Control
METHOD 2
If the Cable Pull Switch can not be connected
directly to the line voltage or the neutral, then the
connection will require four wires. Two wires
connect the Control Circuit and two the indicator.
See to Figure 2.
SEPARATE INDICATOR POWER SOURCE
For indicators with a separate power source, wire
as shown in Figure 3.
Honeywell
ISSUE 1
PK 8157 0

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