Page - 66/90 AF9ZP0BA - EPS-ACW REACH TRUCK - User Manual
- Cause: Current in phase W of the motor lower than 5.4Arms 100msec
long even if it is commanded higher than 28% Imax.
- Remedy: If it is repetitive, check if the battery is connected to the
controller. Otherwise the problem can be a failure in the power
three phase bridge or in terminal W motor connection.
Figure 15.6–1
7) D LINE SENSOR KO
Alarm 0xFFF3=243 Group #2 [M,S]:
- Cause: This alarm occurs when the mean voltage on the Direct line of
the stepper motor (connection CNA#20) is not null: the voltage
on every stepper motor line is a sine wave with null mean
voltage.
- Remedy: Check the continuity of the stepper motor connections. In
particular the resistance between CNA#20 and the minus
battery (with the stepper motor at rest) is expected being very
low (close to 30 ohms).
8) Q LINE SENSOR KO
Alarm 0xFFF2=242 Group #2 [M,S]:
- Cause: This alarm occurs when the mean voltage on the Quadrature
line of the stepper motor (connection CNA#17) is not null: the
voltage on every stepper motor line is a sine wave with null
mean voltage.
- Remedy: Check the continuity of the stepper motor connections. In
particular the resistance between CNA#17 and the minus
battery (with the stepper motor at rest) is expected being very
low (close to 30 ohms).
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