12 volt two wire photo-eye wiring – Zap JACKSHAFT MOTOR-CONTROL SYSTEM 815-RL User Manual

Page 20

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See the wiring diagrams on pages 19 and 20.

If two or more Photo-Eyes, or any other safety
devices are fitted then each switching circuit
should be wired in series.

A 24-volt Photo-Eye or other accessory may be
powered from the 24-volt DC accessory Radio
supply terminals at the lower right hand side of
the panel. The 24-volt accessory supply may be
used to power other accessories such as an
accessory radio receiver (non Zap). (Pic 41) The
maximum current should not exceed 200mA.

An Over-Load circuit will trip if the accessory load
current exceeds 200mA. This is indicated by the
illumination of the OVER-LOAD LED. If the over-
load does trip then isolate the main power for at
least 20 seconds to allow the over-load circuit to
reset and disconnect the excessive load.

The range of Zap Photo-Eye units has been
designed for universal supply operation. They can
be powered from 12 to 240 volts DC or 24 to 240
volts A/C. (Pic 42)

12 VOLT TWO WIRE PHOTO-EYE
WIRING

A 12 volt two wire Photo-Eye may be wired to the
terminals marked at the top of the panel. (Pic 43).
DIP switch No. 3 should be set to the ON position.
Wiring diagrams for various types of photo-eye
units are shown on pages 19 and 20.

Each time the Safety circuit is activated LED LD2
the SAFETY ACTIVE indicator will illuminate. This
is useful when testing the operation of the photo-
eye or other safety device without running the
door. (Pic 44)

In Europe it is necessary to arrange for a standard
safety circuit to be monitored for both an open
circuit and a short circuit in which case the circuit
must include an 8.2 K resistor at the furthest point
in the external circuit. DIP Switch No. 1 should be set
to ON which is the position marked RES for resistive.

When the circuit is to be operated as Normally
Closed then DIP switch No. 1 should be set to OFF.
This position is marked N/C on the panel for
Normally Closed.

15

Pic 42

Pic 41

Pic 43

Pic 44

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