LINK Systems Max Presence Sensing Device - Manual (Page 29)

Link Lite Black Max Section 3 - Installation
3-24
Perform the following checkout steps:
1. Turn on power to the Link Lite Black
Max units by turning the main disconnect
to the machine control to the on position.
Do not turn on machine motor(s). Verify
that there are no obstructions between
transmitter and receiver units.
2. Look at the door of the main Black Max
receiver unit and verify that the green
"CLEAR" lights are on, that the amber "NO
BLANKING" light is on, and that the RUN
- PROGRAM - SELECT switch is in the
RUN position. If not, use the key for the
RUN - PROGRAM -SELECT switch to
obtain these conditions.
3. Both the main transmitter and receiver
units have a label that states their minimum
object sensitivity (M.O.S.). Check these
labels to verify that both transmitter and
receiver have the same M.O.S.. If a
different M.O.S. is stated on the receiver
and transmitter, a different model number
transmitter and receiver have inadvertently
been installed. find the transmitter or
receiver that corresponds with the intended
model number and exchange to correct this
situation. When you have determined the
M.O.S. of the installed units, obtain a test
bar or strip that has a width equal to the
M.O.S. of the installed Black Max system.
NOTE! If remote segment units are also
used as supplementary safeguarding, the
M.O.S. of these units will usually be
different than the main units. Check the
labels on these units for M.O.S..
4. Place the test bar or strip obtained in
item 3 immediately in front of the top
channel of the main receiver unit and
slowly lower the bar or strip through the
sensing field to the bottom channel,
observing to confirm that each channel
indicator light behind the acrylic receiver
lens lights as its channel is blocked, and
that the red "STOP SIGNAL" lights on the
receiver door stay continuously on as the
bar or strip is lowered from top to bottom.
5. Repeat step 4 with the bar or strip
placed immediately next to the main
transmitter unit and lowered from top to
bottom.
6. Repeat step 4 with the bar or strip
halfway between the transmitter and
receiver units and lowered from top to
bottom.
7. If remote segment transmitter and
receiver units are installed, block each
channel of the remote segment unit and
confirm that its channel indicator light
located behind the acrylic lens on the
remote segment receiver unit comes on and
that the red "STOP SIGNAL" lights on the
door of the receiver come on.
8. If any of the results in the test per-
formed in the preceding steps are not as
specified, go to the troubleshooting section
of this manual or contact Link Systems to
correct the problem. Do not start the
machine until the problem is corrected. If
the preceding tests were successful, start
the machine and, with no obstruction
between the Black Max transmitter and
receiver units operate the machine in all
modes to confirm normal operation. If the
green "CLEAR" lights on the main receiver
unit door are on but the machine won't
operate, incorrect wiring from the Black
Max to the machine control is indicated. If
the machine operates properly proceed to
the next step.