Section 4 – Installation Information (Continued)
Telemotive Laser Guard Instruction Manual – October 2009
11
LEDs (DS5 and DS6) should be off. If the out-of-
sequence LEDs are on, recheck the above
adjustments. Should these LEDs still be on, stop here
and notify Telemotive Customer Service.
Move the crane with the laser to about 50 ft. to 75 ft.
from its target. Turn all unnecessary power to the
crane off, except for the laser system. Turn the power
switch to the laser system on. If the power was on,
turn it off and then back on again. Note that the red
LED on the back of the laser head flashes on
momentarily, and then the green LED on the back of
the laser head will start blinking or be on
continuously. If the red LED stays on, there is a fault
condition with the laser unit and it will have to be
replaced.
Loosen the two bolts on both sides of the "U" bracket
of the laser mount and the one bolt at the bottom of
the "U" bracket so the laser head can be moved up
and down, and from left to right with just enough
friction so the laser head does not fall over on its
own.
By "eye sighting", try to point the laser head at the
target. If the green LED on the back of the laser head
should come on "steady", you are aimed "on target".
Otherwise, you will find the target in the steps below:
While watching the green LED on the back of the
laser head, move the laser head slowly up and down,
and at the same time moving the laser even more
slowly from side to side. Stop when the green LED
starts blinking fast or comes on continuously.
Slowly move the laser head upward until the green
LED starts to blink slowly. Note this point. Now
move laser unit downward until the LED again blinks
slowly. Note this point and position the laser unit
halfway between these points. If you cannot find a
point that makes the green LED blink fast or stay on
continuously, then move the crane a little closer to
the target and repeat the above steps. Alternately
tighten the two bolts on the sides of the "U" bracket a
little at a time until they are tight. This will prevent
the laser unit from moving while tightening the bolts.
Now move the laser unit from side-to-side and note
the points on both sides of the target that the green
LED starts to blink slowly. Position the laser unit to
the center of these two points. While keeping the
laser unit from moving, carefully tighten the one bolt
at the bottom of the "U" bracket.
4-7.
Range Detector Settings (Static Method)
1.
Park the crane in a safe place with all power
removed from the crane controls. Apply power
to the laser system. During the following
adjustments, disregard the out-of-sequence
lights.
2.
Determine the range for the first point of crane
deceleration (maximum range point). Determine
the reference voltage for that range using the
curve in
Figure 4-1
, at the end of this Section.
3.
With your voltmeter connected between GND
(TP4) and TP1, (refer to
Figure 6-13
for test
point location) adjust the first range point pot
until the meter reads the same as the voltage in
step (.2).
4.
Determine the range for the second point of
crane deceleration. This range point must be less
than that in step (2). Determine the reference
voltage for that range as in step (2).
5.
With your voltmeter connected between the
GND (TP4) and TP2, adjust the second range
point pot until the meter reads the same as the
voltage in step (4).
6.
Determine the range for the third point where the
brakes are to be applied. This range point must
be less than that in step (4). Determine the
reference voltage for that range as in step (2).
7.
With your voltmeter connected between the
GND (TP4) and TP3, adjust the third range point
pot until the meter reads the same as the voltage
in step (6). At this time, the out-of-sequence
lights should not be lit. If they are, refer to the
troubleshooting section in this manual.
8.
Power up the crane and cautiously run the crane
up and down the bay to verify that your settings
are correct and the system functions properly for
your application. You may "fine tune" these
adjustments as necessary. Refer to the
troubleshooting section (
Section 4-9
and
Table
4-2
) of this manual if out-of-sequence lights
come on when fine-tuning.
4-8.
Optical Path Fault Detector Checkout
This circuitry may be triggered while you are doing
the installation and adjustment of the system, and it
will not have any affect on the installation, since it is
