AF9ZP0BA - EPS-ACW REACH TRUCK - User Manual
Page - 67/90
9) HIGH
TEMPERATURE
Alarm 0xFF3D=61 Group #3 [M]:
- Cause:
This alarm occurs when the temperature in the cases of the
power mosfets is:
a) higher than 80 degrees longer than 3.84secs @ MAXIMUM
CURRENT=70A
OR
b) higher than 90 degrees longer than 3.84secs @ MAXIMUM
CURRENT=50A.
- Remedy:
Improve the cooling of the controller; otherwise it is necessary
to replace the controller.
10) MOTOR TEMPERAT.
Alarm 0xFF41=65 Group #3 [M,S]:
- Cause:
This alarm occurs only when DIAG MOTOR TEMP is ON and
the thermal sensor inside the motor measures a temperature
higher than 120 degrees. It occurs also when the motor
resistance has been acquired with a temperature in the motor
higher than 120 degrees (still with DIAG MOTOR TEMP to ON).
- Remedy:
Check the thermal sensor in the motor is right working. If it is,
improve the cooling of the motor.
11) STBY I HIGH
Alarm 0xFF35=53 Group #0 [M,S]:
- Cause:
This alarm occurs two ways:
1. at key-on, in case at least one current amplifier on phases U
and W is not in a narrow window of +/- 300mV around
2.5Vdc 50msec long (sampling time 10msec for 5
consecutive samples). (Admitted outputs of the current
amplifiers at key on are from 2.2V to 2.8V).
When the diagnosis has been passed, the offset of the
current amplifiers (IU_zero and IW_zero) will be acquired.
2. with steer at rest, in case at least one current amplifier on
phases U and W is not in a narrow window of +/- 150mV
around IU_zero or IW_zero 96msec long (sampling time
8msec for 12 consecutive samples).
- Remedy:
If it is repetitive, it is necessary to replace the controller
12) VMN NOT OK
Alarm 0xFF20=32 Group #0 [M,S]:
- Cause:
This alarm occurs at key on, in case at least one voltage
amplifiers on linked voltage Vv-Vu and Vu-Vw is not in a narrow
window of +/- 300mV around 2.4Vdc 50msec long (sampling
time 10msec for 5 consecutive samples). (Admitted outputs at
rest are from 2.1V to 2.7V).
When the diagnosis has been passed, the offset of the voltage
amplifiers (Vvu_zero and Vuw_zero) will be acquired.
- Remedy:
If it is repetitive, it is necessary to replace the controller
13) LOGIC FAILURE #3
Alarm 0xFF11=17 Group #0 [M,S]:
- Cause:
This alarm occurs with steer at rest in case the amplifier on the
linked voltage Vv-Vu is not in a narrow window of +/- 250mV
around Vvu_zero 96msec long (sampling time 8msec for 12
consecutive samples.
