Big Joe J1-192 Maintenance Repair Parts Manual page 29

ERROR ERROR TEXT
6 SERIAL ERR #1
13 EEPROM KO
16 LOGIC FAILUREE #4
17 LOGIC FAILURE #3
18 LOGIC FAILURE #2
19 LOGIC FAILURE #1
32 VMN NOT OK
48 MAIN CONT. OPEN
53 STBY I HIGH
BL-J1-192-0315 - 11-19-2019
Table 3-4 Troubleshooting Chart (EPS-AC0 Controller)
POSSIBLE CAUSE
Main uC and Slave uC communicate via
a local serial interface. This alarm
occurs when the slave uC does not
receive the communication from the
main uC through the serial interface.
This occurs if a test to write and read
one location in EEPROM fails. The SW
expects to read the written value. It can
also occur when the hour counter gives
different values between the three
redundant location in which it is
recorded. It also occurs when the busy
bit of the EEPROM does not rise within
12 msec.
This alarm occurs in the rest state if the
output of the voltage amplifier of the
phase Vw-Vv have a drift larger than
±0.25 V.
This alarm occurs in the rest state if the
output of the voltage amplifier of phase
Vu-Vw have a drift larger than ±0.25 V.
This alarm occurs when the real voltage
between phases X and V of the motor
is different from the desired.
This alarm occurs when the real voltage
between phases W and U of the motor
is different from the desired.
This alarm occurs in the initial rest state
after key on if the output of the motor
voltage amplifiers are not in the win-
dow from 2.2 to 2.8 Vdc.
This alarm occurs only when the setting
CAN BUS is PRESENT. Then the
EPS-AC0 waits for a via CAN informa-
tion that the traction controller has
closed the main contactor. If this infor-
mation lacks more than 1.5 secs, this
alarm occurs.
This alarm occurs two ways:
1. In the initial rest state after key on, if
the outputs of the current amplifiers
are not comprised in the window 2.2
to 2.8 Vdc.
2. After the initial diagnosis this alarm
occurs when the output of the cur-
rent amplifiers at rest have a drift
larger than ±0.15 V.
FAULT CLEARANCE
Replace the controller.
Replace the controller.
Replace the controller.
Replace the controller.
Replace the controller.
Replace the controller.
Replace the controller.
Find, on the traction controller, the rea-
son for keeping the main contactor
open.
Replace the controller.
3-13