2 — INSTALLATION AND WIRING
Curtis Model 1226 – September 2019
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pg. 20
Belly Button Check
You can use the Generic Driver 2 output (pin J3-12) to perform a belly button check (BB check). e
belly button check tests whether the emergency reverse wiring is broken. If the controller detects the
wiring is broken, the controller generates a BB Wiring Fault.
Figure 9 shows how the belly button check works. e controller periodically activates Driver 2 in
order to detect whether the wiring between the emergency reverse switch on the tiller head and the
emergency reverse NO switch is broken. If the controller detects that the NO input’s status is low
aer activating the driver 3 times, the controller generates a BB Wiring Fault.
Check
Slot
Driver 2
EMR NO
Check
Slot
Driver 2
EMR NO
Check
Slot
Driver 2
EMR NO
EMR NO is Open
EMR NO is Closed
BB Wiring Fault
Figure 9
Belly Button
Wiring Check