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16) EEPROM CONF.KO
Fault in the area of memory in which the special chopper configuration data is
stored. If the defect persists when the key is switched off and on again, replace the
logic. Otherwise, keep in mind that the chopper configuration has been reset to the
default values (regeneration version, etc.); thus it must be reprogrammed.
Consult the console manual.
17) EEPROM DATA KO
The data in the area of memory for the hour-metre is incorrect. This alarm does not
shut down the machine. If the alarm disappears when the key is switched off and on
again, keep in mind that the hour-metre data has been reset to zero.
18) EEPROM OFF LINE
Fault in the nonvolatile memory that contains data relative to the area for the hour-
metre, the alarms stored and the programming parameters.
If the alarm persists when the key is switched off and on again, replace the logic.
19) CHOP NO CONF.
An alarm similar to no. 16, except that here, even though the data is correct, it does
not correspond to a hardware configuration recognised by the H2B. The considera-
tions are the same as for alarm 16 “EEPROM CONF.KO”.
20) WATCHDOG
The test is made in both running and standby.
It is a self-diagnosis test within the logic. If an alarm should occur, replace the logic.
21) SHORTED COIL
An overload or a short circuit toward +BATT on the contactor negative driver out-
puts. Possible causes:
a) The contactor coils are short circuited or absorb more than 6 A continuous.
b) Short circuit with +BATT of the wiring that comes from the contactor connector.
The alarm indicates the occurrence of an overload, not the breakdown of a chopper
component. Once the external cause is removed, the chopper can be restarted.
22) DRIVER SHORTED
The test is carried out in standby, and checks that the voltage of the drivers that
control the contactors is consistent with the preset value.
Possible causes:
a) Logic failure.
b) Driver breakdown caused by overvoltage in the contactor negative wiring.
Replace the logic after having removed the cause.
H2B diagnosis traction
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