Section 4 – Installation Information (Continued)
Telemotive Laser Guard Instruction Manual – October 2009
10
to the control panel as possible to minimize long
cable runs. The range detector unit should be
mounted next to the crane's control panel (refer to
Figure 6-12
).
Mounting of the reflector target is not as critical as
the laser (
refer to Figure 6-11
).
For outdoor applications, care must be taken to assure
all conduits and enclosures are sealed to prevent
water from entering.
4-5.
Electrical Installation
The laser unit interface cable and all other wiring
should be run in separate 1/2" or 3/4" conduit. Do not
run any other cables in the same conduit with the
laser head cable.
A suitable disconnect should be provided by the
installer.
Run conduit between the range detector unit and the
crane's control panel.
Run conduit from the range detector unit to about 1
ft. from the laser unit. Putting a slight downward
bend in the conduit at the laser transceiver will help
keep dirt and water out. Place a protective end piece
on the open end of the conduit to protect the laser
cable from sharp edges.
Pull the supplied laser cable by the end that does not
have a connector on it through the conduit starting
from the opened laser unit end and into the range
detector unit. Leave enough cable on the laser end so
that it is twice as long as the distance between the end
of the conduit and the laser unit (about 2 ft. to 3 ft.).
This will produce a service loop, which will also help
keep dirt and water out of the open end of conduit
(refer to
Figure 6-2
). This cable consists of two
twisted pairs of red and black wire and an un-
insulated GND drain wire. See Figures
6-3
,
6-4
,
6-5
,
6-6A
and
6-7
for wiring information for this cable.
Plug the connector into the laser unit. The connector
is keyed; do not force.
Two styles range detector boards are available; style
A (E14001) with an external supply and style B
(E14008) with integral regulator. Figures
6-3
(110/240 VAC),
6-5
(250 VDC), and
6-6A
(8-30
VDC) show the connections for style B. Figures
6-4
(110/240 VAC),
6-5
(250 VDC) and
6-6A
(8-30
VDC) show the connections for style A. Style B
boards can directly replace style A boards.
Wire the outputs of the range detector unit (J1) to the
crane control panel (refer to Figures
6-3
,
6-4
,
6-5
,
6-
6A
and
6-7
). Please note that the "NO" and "NC"
markings on the range detector module are the
conditions of the output relays when a range point or
a fault has been detected. Place snubbers across the
contactor coils in the crane's control panel that are to
be controlled as necessary.
Run power to the power input module in the range
detector unit (refer to Figures
6-3
,
6-4
,
6-5
,
6-6A
and
6-7
). Make certain that the input power you provide
matches the input requirements of the power supply
used in this system. If it does not, stop here and
notify Telemotive Customer Service.
Turn the power switch in the range detector unit on
and note that the red LED on the laser head blinks on
momentarily, and the green LED is blinking or on
continuously. If the above does not occur, turn the
power off and recheck all wiring.
For wiring special crane configurations such as
magnetic control, timed bypass, stepped or stepless
VFD, see the figures listed below in the back of the
manual.
Figure 6-14.
Laser Guard Crane Magnetic Control,
Protection in One Direction
Figure 6-15.
Laser Guard Crane Control with
Timed Bypass, Protection in One Direction
Figure 6-16.
Laser Guard Stepped VFD or
Magnetic Crane Control, Protection in Both
Directions
Figure 6-17.
Laser Guard Stepped VFD or
Magnetic Crane Control, Protection in One
Direction
Figure 6-18.
Typical Laser Guard Interface with
Stepless VFD Control
Figure 6-19.
Typical Laser Guard Interface with
P&H Stepless VFD Control
4-6.
Mechanical Alignment
Make initial adjustments of the range detectors as
follows:
With a voltmeter connected between GND (TP4) and
TP1, adjust the 1st range pot for 10V. (Refer to
Figure 6-13
. for location of test points). Move the
meter to TP2 and adjust the 2nd range pot for 5 V.
Finally, move the meter to TP3 and adjust the 3rd
range pot for 3 V. At this point, all out-of-sequence
