EP Equipment CPD30L1-B, Руководство по обслуживанию

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REV. 05/2020
ELECTRICAL SYSTEM
9
147
Error Message
Possible cause Fault elimination
Error
Error text
187 LIFT + LOWER
Both the pump requests (LIFT and
LOWER) are active at the same
time.
- Check that LIFT and LOWER
requests are not active at the
same time.
- Check the LIFT and LOWER
input states through the TESTER
function.
- Check the wirings.
- Check if there are failures in the
micro-switches.
- If the problem is not solved,
replace the logic board.
228 TILLER OPEN
Tiller/seat input has been inactive
for more than 30 seconds.
- Activate the tiller/seat input.
- Check the tiller/seat input state
through the TESTER function.
- Check the wirings.
- Check if there are failures in the
microswitches.
- If the problem is not solved,
replace the logic board.
252 WRONG ZERO
At start-up the amplifiers used to
measure the motor voltage sense
voltages above 3 V or below 2 V.
This type of fault is not related to
external components. Replace the
logic board.
250
THERMIC SENS.
KO
The output of the controller thermal
sensor is out of range.
This kind of fault is not related to
external components. Replace the
controller.
62
TH.
PROTECTION
The temperature of the controller
base plate is above 85 °C.
The maximum current is
proportionally decreased with the
temperature excess from 85 °C up
to 105 °C. At 105°C the current is
limited to 0 A.
It is necessary to improve the
controller cooling. To realize
an adequate cooling in case of
finned heat sink important factors
are the air flux and the cooling-
air temperature. If the thermal
dissipation is realized by applying
the controller base plate onto the
truck frame, the important factors
are the thickness of the frame and
the planarity and roughness of its
surface.
If the alarm occurs when the
controller is cold, the possible
reasons are a thermal-sensor
failure or a failure in the logic
board. In the last case, it is
necessary to replace the controller.