Stiga e-PARK 220 Workshop Manual page 78

WORKSHOP MANUAL
e-PARK 220
Code Definitions
POS EB
86
SHORTED
AUX BATT.
213
SHORT
EVP1 COIL
214
OPEN
EVP2 COIL
215
OPEN
KEYOFF
220
SHORTED
FLASH
221
CHECKSUM
SMART DRIV-
222
ER KO
COIL
223
SHORTED
9 - ELECTRONIC MANAGEMENT - BATTERY
Probable Cause and Consequent Action
• Cause: The output of the integrated Smart Driver that supplies the positive pole of the
electromagnetic brake coil is high when the bar and the H&S switch are open.
• Solution:
- It is suggested to check the wiring to determine if the positive pole is connected to the
CNA#2 output of the Smart Driver.
- If the output remains high even when disconnecting the wire from the connector pin,
the problem is inside the controller and the Smart Driver is likely to be shorted.
• Cause:
A) The coil on the aux output is not connected correctly.
B) The Smart Driver inside the controller is damaged.
• Solution:
- It is suggested to check that the coil is properly connected between A2 and A4.
- If no problems are found in the coil, the problem is inside the controller.
• Cause: This fault appears when the EVP1 LOWER output is used (the "TYPE EVP"
parameter in the "SET OPTION" menu is set to ANALOG or DIGITAL) but no load is
connected between the output and the PAUX positive pole.
• Solution:
- It is suggested to check the wiring to see if the EVP1 coil is connected to the pin of
the right connector and that it is not interrupted.
- If the alarm persists even if you connect the coil to the right pin or replacing it, the
problem is inside the controller's motherboard, which needs to be changed.
• Cause: This fault appears when the EVP2 output is used (the "EVP2 TYPE" parame-
ter in the "SET OPTION" menu is set to ANALOG or DIGITAL) but no load is connected
between the output and the PAUX positive pole.
• Solution:
- It is suggested to check the wiring to see if the EVP2 coil is connected to the pin of
the right connector and that it is not interrupted.
- If the alarm persists even if you connect the coil to the right pin or replacing it, the
problem is inside the controller's motherboard, which needs to be changed.
• Cause: This fault appears when the controller detects a low level of the Key-Off signal
during the start-up diagnosis.
• Solution: The fault is most likely due to undervoltage and should be checked:
A) Pulse lowering in the key input signal (above undervoltage threshold) due to exter-
nal loads, such as starting DC/DC converters, switching relays or contactors, power-
ing solenoids on/off.
B) Check the connection of the electric cables to the battery terminal (positive and
negative terminals), to MC and to the +Batt and -Batt controller, which must be tight-
ened with a torque between 5.6Nm and 8.4Nm.
C) If no voltage surges are detected on the supply line and the alarm appears each
time the key is activated, the fault is probably in the controller hardware and the
motherboard must therefore be replaced.
• Cause: The software was not written correctly to the flash memory or the flash
memory is damaged.
• Solution: This type of failure is independent of external components; replace the
controller
• Cause: The integrated Smart Driver is open, but cannot power the positive pole of the
electromechanical brake.
• Solution:
- It is suggested to check the wiring to check if the CNA#2 output of the Smart Driver
has a -Batt short circuit.
- If the output remains low even when disconnecting the wire from the connector pin,
the problem is inside the controller and the Smart Driver is probably damaged.
• Cause: This alarm occurs when there is a short circuit in one of the coils connected to
the outputs of the CombiAC-0 system (KZTP or EB coils). Once the overload condition
is eliminated, the alarm automatically disappears authorising and enabling a transport
request.
• Solution:
- The cause of this error code is usually the wiring or the loading coil. Therefore, first
check the connections between the output and controller loads.
- If there are no external faults/problems, it means that the problem is inside the con-
troller, which needs to be replaced.
CHAPTER EDITION PAGE
2018 78 /
84