48
2 - S D
Inclinometer
Safety Devices
Verifi cation of limit switches and screen alerts
1- Pull out the emergency stop button and unlock the display screen (fi g. 5.1, p. 74).
Make sure that the appropriate confi guration options have been selected (
F4) on the
display screen of the control panel. For information about the functions and alerts of
the control panel, refer to p. 77 of the Control Panel section.
2- Make sure that the control panel does not detect any event that would prevent the safe
and appropriate operation of the unit. It is important to note that when the motorized
unit is at base level and resting on its buff ers, the screen should display an alert for
the bottom fi nal limit (
BFL).
3- With the motorized unit at base level, test the top fi nal limit switch by placing a metallic
object in front of it. If the switch is working properly, the top fi nal limit alert will no longer
be displayed on the screen.
4- If mast sections are installed, move back the sensor from the rack. If the switch is
working properly, the top fi nal limit alert will be displayed on the screen.
5- Remove the mast head and install one mast section. Refer to p. 84 of the Mast and
Mast Ties section for instructions on the installation of mast sections. The top fi nal limit
alert will no longer be displayed on the display screen.
6- Test the bottom fi nal limit switch (the mechanical switch) by activating its lever. If the
switch is working properly, the bottom fi nal limit alert will be displayed on the screen
when the lever is triggered.
7- Test the bottom limit switch by lowering the unit to base level. If the bottom limit switch
is working properly, the corresponding alert will be displayed on the screen.
8- With the motorized unit still about 6" (15,2 cm) above base level (and with the top limit
alert still not displayed on the screen), test the top limit switch by placing a metal object
in front of it. The top limit alert will be displayed on the screen.
9- On an F300 unit model used in an unlinked confi guration, open the link bridge door to
test the door switch. If the switch is working properly, the link bridge door alarm will be
displayed on the screen and unit travel will not be allowed.
10- For any other configuration requiring the use of a door sensor (linked to the
DOORSWITCH, LINKDOOR ports), test the sensor by opening the door linked to it. If
the sensor is working properly, the door alert will be displayed on the screen and unit
travel will not be allowed.
11- If any of the limit switches is not working properly, call a qualifi ed person. For the
defi nition of a qualifi ed person, refer to p. 7 of the Performance and Safety Rules
section. For more information about limit switches and their corresponding alerts, refer
to p. 77 of the Control Panel section.
1- Make sure the motorized unit is at 5' to 10' (1,5 m to 3 m) above base level.
2- Make sure that the bearing bridge structure is level and that the inclinometers are
connected properly at both ends of the structure.
3- Raise the motorized unit located at the
LEFT END of the bearing bridge installation. If
the inclinometer is working properly, the motorized unit will stop completely when the
structure has reached a 5-degree slope. Monitor the operation and make sure that
the motorized unit stops when the >5DEG NEG alert is displayed on the screen of the
control panel.
4- Bring the structure back to level. Lower the motorized located at the
LEFT END of the
bearing bridge installation. If the inclinometer is working properly, the motorized unit
will stop completely when the structure has reached a 5-degree slope. Monitor the
operation and make sure that the motorized unit stops when the >5DEG POS alert is
displayed on the screen of the control panel.
5- Make sure the bearing bridge structure is level and repeat steps 2 and 3 at the
RIGHT
END
of the structure.
Testing the inclinometer
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