PBV20N2 PBV20N2 Service Service ManualManual
CODE
CODE TRUCKTOOL TRUCKTOOL AND AND DISPLAY DISPLAY DESCRIPTIONDESCRIPTION
226226 Accelerator voltage out of raAccelerator voltage out of rangenge
VACC OUT RANGEVACC OUT RANGE
(Alarm) Stored(Alarm) Stored
This alarm is displayed if accelerator voltage is This alarm is displayed if accelerator voltage is out of range.out of range.
In such a case:In such a case:
•
• Teach the accelerator values again.Teach the accelerator values again.
•• Check that the connectors and cables are in order.Check that the connectors and cables are in order.
•
•
Replace the accelerator and teach the accelerator new values.Replace the accelerator and teach the accelerator new values.
228228 Tiller switch is openTiller switch is open
TILLER OPENTILLER OPEN
(Warning) (Warning) Not Not shown shown in in the the displaydisplay
This warning occurs when the tiller is This warning occurs when the tiller is released after a fixed time in released after a fixed time in the standby mode with thethe standby mode with the
main contactor open (30 seconds).main contactor open (30 seconds).
After the next travel requesAfter the next travel request, the warning disappears.t, the warning disappears.
229229 Magnetic brake driver output errorMagnetic brake driver output error
POS. EB. SHORTEDPOS. EB. SHORTED
(Alarm) Stored(Alarm) Stored
This alarm is displayed when the output This alarm is displayed when the output of the built-in smart driver, of the built-in smart driver, which supplies the positivewhich supplies the positive
to the electromechanical brake coil, is high to the electromechanical brake coil, is high when the tiller and the when the tiller and the brake release switch arebrake release switch are
open.open.
In such a case, check the wiring to In such a case, check the wiring to see that there is no see that there is no extra positive supply connected to theextra positive supply connected to the
electromechanical brake at the connector XA1 B/1 when the tiller electromechanical brake at the connector XA1 B/1 when the tiller and the brake release switchand the brake release switch
are open.are open.
If the output stays at If the output stays at a low value even a low value even when disconnecting the wire from the connector pin, thewhen disconnecting the wire from the connector pin, the
problem is in the COMBIACX controller.problem is in the COMBIACX controller.
231231 WATCHDOG#2WATCHDOG#2
WATCHDOG#2WATCHDOG#2
(Alarm)(Alarm)
This is a safety related, self-diagnosis test within This is a safety related, self-diagnosis test within the logic. The watchdog circuit is composed ofthe logic. The watchdog circuit is composed of
two monostable multivibrators, so there is a double-check of the two monostable multivibrators, so there is a double-check of the software execution.software execution.
This alarm can be caused by a hardware failure in one or both of the multivibrators or it can beThis alarm can be caused by a hardware failure in one or both of the multivibrators or it can be
due to a software execution problem. In due to a software execution problem. In both cases, the problem is in the both cases, the problem is in the COMBIACXCOMBIACX
controller, which must be replaced.controller, which must be replaced.
230230 Failure in motor controlFailure in motor control
LOW TORQUELOW TORQUE
(Alarm) Stored(Alarm) Stored
This alarm indicates a failure in This alarm indicates a failure in the motor control.the motor control.
If this alarm occurs often, some of the If this alarm occurs often, some of the hardware settings are probably not correct. Also checkhardware settings are probably not correct. Also check
the motor connections.the motor connections.
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