BL-CB33-0115 - 03-01-2018 4-13
Table 4-3 STEERING CONTROLLER - Continued
Error Message Possible Cause Fault Elimination
Code Error Text
70 HIGH CURRENT This alarm occurs if the circuit to
limit via hardware the current in
the motor is either always
active at key-on or repeatedly
active when the motor is turn-
ing.
Check the motor is suited to work with the
EPS-AC0 (not oversized). Otherwise it is
necessary to replace the controller.
71 POWER
FAILURE #3
This alarm occurs when the cur-
rent in the phase V of the
motor is zero and the motor is
commanded for moving.
Check the power fuse is OK. Check the bat-
tery positive arrives to the controller. Check
the continuity of the wire in the phase V of
the motor. Otherwise it is necessary to
replace the controller.
72 POWER
FAILURE #2
This alarm occurs when the cur-
rent in the phase U of the
motor is zero and the motor is
commanded for moving.
Check the power fuse is OK. Check the bat-
tery positive arrives to the controller. Check
the continuity of the wire in the phase U of
the motor. Otherwise it is necessary to
replace the controller.
73 POWER
FAILURE #1
This alarm occurs when the cur-
rent in the phase W of the
motor is zero and the motor is
commanded for moving.
Check the power fuse is OK. Check the bat-
tery positive arrives to the controller. Check
the continuity of the wire in the phase W of
the motor. Otherwise it is necessary to
replace the controller.
83 BAD ENCODER
SIGN
It occurs in applications with tog-
gle switches when the applied
frequency (FREQUENCY) and
motor sped (ENC SPEED)
have opposite sign.
Swap in between two encoder channels
(CNB#7 with CNB#8).
84 STEER
SENSOR KO
This alarm occurs if the command
potentiometer (CPOC1 on
CNA#9 or CPOC2 on CNA#8)
changes with a jerk larger than
MAX SP SLOPE. This alarm is
used to catch a discontinuity in
the voltages of the command
potentiometer.
Change the steer pot.
85 STEER HAZARD This is just a warning to inform
that the steering controller is
limiting the angle in the steer-
ing direction. No speed reduc-
tion occurs on the traction.
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