Big Joe CB33 Manual page 30

Error Message
Code Error Text
19 LOGIC
FAILURE #1
32 VMN NOT OK
48 MAIN CONT.
OPEN
53 STBY I HIGH
61 HIGH TEM-
PERATURE
65 MOTOR
TEMPERAT
4-12
Table 4-3 STEERING CONTROLLER - Continued
Possible Cause
This alarm occurs when the real
voltage between phases W
and U of the motor is different
from the desired voltage.
This alarm occurs in the initial rest
state after key-on it the inputs
of motor voltage amplifiers are
not in the window 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 information that the
traction controller has closed
the main contactor. If this infor-
mation lacks more than about
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 outputs
of the current amplifiers at rest
have a drift larger than ±0.15V.
This alarm occurs if the tempera-
ture of the controller base plate
overtakes 75 degrees.
This alarm occurs only when DIA
MOTOR TEMP is on and the
thermal sensor inside the
motor measures a temperature
higher than 150 degrees. It
also occurs when trying to
acquire the motor resistance
with a temperature in the motor
higher than 150 degree (still
with DIAG MOTOR TEMP to
ON).
Fault Elimination
It is necessary to replace the controller.
It is necessary to replace the controller.
Find, on the traction controller, the reason for
keeping the main contactor open.
It is necessary to replace the controller.
Improve the cooling of the controller; other-
wise it is necessary to replace the control-
ler.
Check that the thermal sensor in the motor is
working correctly. If it is, improve the cool-
ing of the motor.
BL-CB33-0115 - 03-01-2018