EP Equipment CPD30L1-B, Service Manual

Page: 177 / 235

REV. 05/2020
ELECTRICAL SYSTEM
9
165
Error Message
Possible cause Fault elimination
Error
Error text
Vacc out of range
The CPOT input red by the
microcontroller is not comprised
in the range Vacc_min ÷ Vacc_
max, programmed through the
“PROGRAMM VACC” function.
Acquire the maximum and
minimum potentiometer value
through the PROGRAM VACC
function. If the alarm is still
present, check the mechanical
calibration and the functionality of
the potentiometer. If the alarm is
not disappeared the failure is in
the ACE logic board, replace it.
Incorrect start
This is a warning for an incorrect
starting sequence.
The possible reasons for this
alarm are (use the readings in
the TESTER to facilitate the
troubleshooting):
- A travel demand active at key on
- Presence man sensor active at
key on
Check the wirings. Check the
micro switches. It could be also
an error sequence made by the
operator. A failure in the logic is
possible too; so when all of the
above conditions were checked
and nothing was found, replace
the ACE logic board.
F
Backward
This alarm occurs when both the
travel demands (Fwd and Bwd) are
active at the same time.
Check the wiring of the Fwd and
Rev travel demand inputs (use
the readings in the TESTER to
facilitate the troubleshooting).
Check the microswitches for
failures.
A failure in the logic is possible
too. So, when you have verified
the travel demand switches are
fine working and the wiring is
right, it is necessary to replace the
ACE3 logic board.
Tiller open
Warning when the tiller is released,
after a fixed period of time of
standby (30 seconds) the main
contactor open.
At the next travel request the
warning disappear.