Hillyard TRIDENT T26SC PLUS, Service Manual

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3.6.4 Traction Alarms
Id Alarm Meaning Solution
AL 80
Traction Overtemperature The temperature of the traction power mosfets exceeds 90°C. Switch off
the machine, wait for the cooling and then switch on again.
AL 81
Traction Powerstage failure Turn it off and on again. If the problem persists, replace the main card.
AL 82
Traction Main fuse failure Check the Traction fuse. If the problem persists, replace the main card.
AL 83
Traction Main relay failure Replace the main card.
AL 84
Traction Main relay failure CC Replace the main card.
AL 85
Traction Traction Overcurrent Traction Motor Short Circuit. Check the connections, if the problem per-
sists, replace the main card.
AL 86
Traction Traction
Ammeter Overcurrent of the Traction Motor.
AL 87
Traction Motor data reading Abnormal traction motor Output current. Check the traction motor and
its connections. If the problem persists, replace the main card.
AL 88
Traction Electrobrake failure No current on the electrobrake output. Verify that the electrode is acti-
vated, check its connections. If the problem persists, replace the electro-
brake.
AL 89
Traction Potentiometer adjust-
ment issue Abnormal Potentiometer Output voltage. Check the potentiometer and
its connections. If the problem persists, replace the potentiometer.
AL 90
Traction Lever pressed The lever is pressed while the key is switching on. Check the safety
microswitch and its connections. If the problem persists, replace the
microswitch.
AL 91
Traction Encoder failure The encoder provides non-coherent information. Verify the Encoder and
its Connections. If the problem persists, replace the Encoder.
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