63
Models
Revision 03-2012
Toucan 1210
Toucan 1310
ELECTRICAL SYSTEM
4
4
4.2.7. Strain link (Stability control device)
The factors acting upon the work platform stability
(tilt, overload, wind, outside forces....) induce in the
structure mechanical stresses that are expressed by
an elastic deform ation measured by the
extensiometric sensor. The sensor output signal is
treated by an electronic box equipped with a relay
output that opens the circuit when the signal reaches
a predetermined value. Opening of the circuit causes:
- Actuation of an alarm.
- Reduction in speed of the mast and jib elevation
movements (parameter Test 4 of the controller
= CL - see § 4.5).
- The cut off of the following movements :
- drive
- slewing
- telescope extension
- jib lowering as long as the telescope is
not retracted [SW2]
Movement cut off is obtained by :
- Supply cut (+) to the coil [DV1] on the function
manifold.
- Actuation of the "Pump Inhibit" function of the
controller when a non authorized movement in
controlled (parameter Test 10 of the controller
= CL - see § 4.5).
NOTE
Actuation of this safety feature occurs only
when the enable pedal is released. The
structure must be retracted until the alarm
stops for all the work platform functions to
be restored.
Installation of the adjustment system
Any operation on the sensor fixation screws
implies a new adjustment of the system.
NOTE
Adjustment of the system requires
parametrization of the electronic card
microprocessor using a computor equipped
with "Hyper terminal windows
®
" software via
RS-232 serial link. Software configuration as
well as the controls to communicate with the
microprocessor are described at the end of
this chapter.
!
CAUTION
