LINK Systems Max Presence Sensing Device - Manual (Page 27)

Link Lite Black Max Section 3 - Installation
3-22
sent by the Black Max receiver unit to the
machine control.
Figure 3.22a: Transmitter and receiver out
of alignment from side view.
Figure 3.22b: Transmitter and receiver in
alignment from side view.
To align the Black Max transmitter and
receiver units perform the following steps.
1. Turn on the main disconnect switch to
the machine control to supply power to the
Link Lite Black Max transmitter and
receiver units. Verify that power is on the
transmitter by observing that the green
"POWER" LED in the front center of the
transmitter unit is on. Verify that power is
on the receiver by observing that either the
green "CLEAR" LEDS or the red "STOP
SIGNAL" LEDS in the front center of the
receiver unit are on. Don't start the
machine for this alignment procedure.
Leave all motors off.
2. Check to make sure that no grease or
dirt covers the red acrylic lens in the front
of the transmitter and receiver units and
that no obstruction is between the transmit-
ter and receiver. Also, check the front of
the main receiver unit to make sure that the
amber colored "NO BLANKING" light is
on and that the RUN-PROGRAM -SE-
LECT switch is in the "RUN" position. If
not, use the key for the RUN -
PROGRAM - SELECT switch to obtain
these conditions.
3. Observe the green "CLEAR" and red
"STOP SIGNAL" lights on the door of the
main receiver unit. If the transmitter and
receiver are aligned to where some part of
the cone of light from each emitter in the
transmitter falls upon its similarly num-
bered phototransitor channel on the re-
ceiver and, if the receiver is aligned well
enough that some sector of its cone of
vision can see the light from the emitter,
the "CLEAR" lights will be on. If not, the
"STOP SIGNAL" lights will be on. Even if
the "CLEAR" lights are on, indicating at
least rough alignment, perform the follow-
ing steps to achieve best alignment. Best
alignment results when the cone of trans-
mitted light and the cone of receiver vision
are centered on each other.
4. The L shaped mounting "ears" for the
Link Lite Black Max units are designed to
allow easy alignment if the mounting