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8) CONTACTOR DRIVER AL 75 MDI 6 LED FLASHES
Test with the main relay closed, check that the driver is not open.
Possible causes:
a) driver open;
b) fault in the feedback circuit of the main relay coil voltage.
9) I=0 EVER AL 49 MDI 5 LED FLASHES
Test whilst running. Check that the current value is higher than the minimum
threshold value. If not the chopper will go into alarm and prevent machine
functions.
Possible causes:
a) faulty current sensor;
b) fault in the feedback circuits, in the logic or in the power board.
10) EB DRIVER KO AL 02 MDI 8 LED FLASHES
The alarm is activated when a problem in the driver of the electric brake is detected
(only for transpallets with brake present and diagnosis enabled).
Possible causes:
a) shorted driver;
b) the driver is faulty and cannot control the electric brake;
c) fault in the feedback circuit of the electric brake coil voltage.
11) WATCHDOG AL 08 MDI 1 LED FLASHES
Test both at rest and running: this is an internal self-diagnosis of the logic. If this
alarm is signalled, replace the logic.
12) CHECK-UP NEEDED AL 99 MDI 0 LED FLASH
Indicates that it is time to carry out programmed maintenance; this alarm is
activated 300 hours after the last time maintenance was carried out unless the
“Check up type” option is set to “None”; cancel by setting “Check-up done” to ON.
13) FORW + BACK AL 80 MDI 2 LED FLASHES
Test carried out continuously. The alarm is activated when 2 running requests are
given simultaneously. The alarm is reset if one of the two requests is cancelled.
Possible causes:
a) check wiring;
b) if fault persists, replace the logic.
14) VACC NOT OK AL 78 MDI 4 LED FLASH
This alarm indicates that the traction accelerator voltage is 1V higher that the
minimum programmed voltage at key-on and when at rest.
Possible causes:
a) a potentiometer wire is disconnected;
b) the potentiometer is not wired correctly;
c) the potentiometer is faulty;
d) potentiometer programming has not been carried out correctly.
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