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Subinfo: Overcurrent e8Subinfo: Overcurrent e8
Try changing the motor regulator orTry changing the motor regulator or
switching the regulators.switching the regulators.
Change the Change the AATC.TC.
Switch off the voltage, wait a fewSwitch off the voltage, wait a few
seconds and switch on the voltageseconds and switch on the voltage
again.again.
Overcurrent arises when the regulator'sOvercurrent arises when the regulator's
load impedance drops under aload impedance drops under a
minimum value. This is often causedminimum value. This is often caused
by a short circuit in the regulator'sby a short circuit in the regulator's
output stage, in the heavy cableoutput stage, in the heavy cable
connection between the motor andconnection between the motor and
regulator or in the motor.regulator or in the motor.
Subinfo: Overcurrent e8?Subinfo: Overcurrent e8?
NoNo
Finished.Finished.
YYeses
Check the motor cables for a shortCheck the motor cables for a short
circuit betwcircuit between U-V, U-W and een U-V, U-W and VV-W-W,,
also check that the phases are not shortalso check that the phases are not short
circuited or have inferior insulation tocircuited or have inferior insulation to
the chassis.the chassis.
In order to measure a short circuit inIn order to measure a short circuit in
the motor cables they must bethe motor cables they must be
unscrewed from the isolated terminalunscrewed from the isolated terminal
posts on both the regulator and motorposts on both the regulator and motor
sides.sides.
Change the regulatChange the regulator.or.
Subinfo: Overcurrent e8?Subinfo: Overcurrent e8?
NoNo
Finished.Finished.
YYeses
Change the motoChange the motor.r.
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