* of the nominal capacity
(1) Sufficiently low value to detect a loose wire, by default, -3% of the nominal capacity.
(2) Value at which lifting must be prohibited, according to the legislation in force and the bridge manufacturer's
data.
(3) The hysteresis value may be modified according to the operating conditions. The SP2 activation relay
opens as soon as overloading is reached and only closes when the load is less than the threshold value
minus the hysteresis value.
(4) “tON”(SP2 activation delay) may be modified if the action of lifting a load that is less than the limit load
generates forces (dynamic movements of the load or the “yo-yo” effect) that are greater than those
generated by the static limit load.
(5) Load below which lowering must be prohibited (the SP3 relay opens).
After configuring and validating the parameters of your CRANE-BOY, return to display mode (press the “PAR”
key until “END” appears).
2.3. Correct operation test
The operating test checks that the different relays work and that the wiring is correct, given that the load limiter
must take priority over the commands from the lifting device to prevent any condition that would increase the
overload.
In nominal operation, SP1, SP2 and SP3 are displayed on the front panel.
2.3.1. Verification of safety if one of the transducer wires breaks
For correct verification:
-Disconnect the green wire (+ output) OLOL must be seen on the display and the SP2 overload
relay is off (lifting is impossible)
-Disconnect the white wire (- output) OLOL must be seen on the display and the SP2 overload
relay is off (lifting is impossible)
-Disconnect the brown wire (+ excitation) –xxxxx must be seen on the display and the SP1 and SP3
relays are off (raising and lowering loads are impossible)
-Disconnect the yellow wire (- excitation) –xxxx must be seen on the display and the SP1 and SP3
relays are off (raising and lowering are impossible)
