Troubleshooting - Corkill Systems Reporoa Engineering 2807D Instruction Manual

THE REPOROA HIGH LIFT GATE CONTROLLER ELECTRONIC SYSTEM
Model 2807D – 2014
This 24VDC sounder has two different tones; the constant pulsed tone is for an Alarm
Situation and the siren tone for gate travelling forward or down. The unit has a volume control
on the top of the sounder as viewed from the front of the control box. Test the sounder alarm
mode by holding in the Stop Button on the control box lid for more than ten seconds.
Trouble Shooting
Common Error Messages.
WARNING/ALARM 4 Phase fault (MAIN PHASE FAULT). 3 phase gates only
A phase is missing on the supply side or the mains voltage imbalance is too high.
This message can also appear if there is a fault in the input rectifier on the frequency
converter.
Cause/Remedy: Check to make sure all 3 Phases are ok to the drive, if these are ok check
other 3 Phase equipment in the Dairy. E.g. to make sure your power supply is ok to the
Dairy. Turn off the gate completely for 40 sec then back on, "RESET" and then "START" may
need to be pressed on the control panel on the Danfoss Drive.
WARNING 6 Voltage warning low (DC LINK VOLTAGE LOW).
The intermediate circuit voltage (DC) is below the under voltage limit of the control system.
Cause/Remedy: The incoming voltage to the gate is too low for it to operate.
E.g. there could be a fault with the power entering the drive. Check incoming supply and
cables.
The voltage will need to be returned to normal for the gate to operate
WARNING/ALARM 9 Inverter Overload (INVERTER TIME).
The electronic, thermal inverter protection reports that the frequency converter is about to cut
out because of an overload (too high current for too long). The counter for electronic, thermal
inverter protection gives a warning at 98% and trips at 100%, while giving an alarm. The
frequency converter cannot be reset until the counter is below 90%.
The fault is that the frequency converter is overloaded by more than 100% for too long.
Cause/Remedy: check motors for faults dry bearings or stiff gear boxes and check motor
data in the drive and perform an automatic motor adaption in the lift motor. Turn off the gate
completely for 40 sec then back on, "RESET" and then "START" may need to be pressed on
the control panel on the Danfoss Drive.
WARNING/ALARM 13 Over current (OVERCURRENT).
The inverter peak current limit (approx. 200% of the rated current) has been exceeded. The
warning will last approx 1 – 2 seconds, following which the frequency converter will trip, while
giving an alarm. Turn off the frequency converter and check whether the motor shaft can be
turned and whether the motor size matches the frequency converter. If extended mechanical
brake control is selected, trip can be reset externally.
Cause/Remedy: check motors for faults dry bearings or stiff gear boxes and check motor
data in the drive and perform an automatic motor adaption in the lift motor. Turn off the gate
completely for 40 sec then back on, "RESET" and then "START" may need to be pressed on
the control panel on the Danfoss Drive.
ALARM 14 Earth fault (EARTH FAULT).
There is a discharge from the output phases to earth, either in the cable between the
frequency converter and the motors or in the motors them self..
Copyright June 2001 – Steve Corkill
This manual subject to copyright and not to be copied without the express permission of Corkill Systems Limited
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CSLRHLG-MANUAL-2014.DOC 24/07/2014