MDS-E/EH Series Instruction Manual
9 Power Backup System
461
IB-1501229-F
9.4.5 Troubleshooting for Each Warning No.
Warning No.
D0
Instantaneous power interruption :
Instantaneous power interruption of the input power supply or voltage drop between L+ and L- was detected. This warning also
occurs at normal power OFF.
Investigation details
Investigation results
Remedies
1
Check whether the power voltage is properly input
to L1, L2 and L3.
The voltage is not input properly.
Inputt properly.
The voltage is input properly
Check the investigation item No. 2.
2
Check the power supply voltage.
The voltage drops under the lower limit value.
Change the power supply voltage to be within the
specified range.
The voltage frequently drops under the lower limit
value.
Use a power supply voltage with a greater
capacity.
Voltage is below the specified limit.
Check the investigation item No. 3.
3
Check the reproducibility.
Always reproduced.
Replace the power backup unit.
This error occurs occasionally.
Check the investigation item No. 4.
4
Check if there is any abnormality in the unit's
ambient environment. (Ex. Ambient temperature,
noise, grounding)
Take remedies according to the causes of the abnormality in the ambient environment.
Warning No.
D1
Over regeneration :
Over-regeneration detection level became over 100%.The regenerative resistor is overloaded.The warning is not released even
if the power turns ON again.
The warning is released if over-regeneration level drops to less than 80% in power ON state (usually takes 20 minutes).
Investigation details
Investigation results
Remedies
1
Check the reproducibility.
This error occurs every time the motor decelerates
at power failure or at power supply alarm.
Check the investigation item No. 2.
This error occurs occasionally.
Check the investigation item No. 3.
2
Check the machine's load inertia and the maximum
motor rotation speed.
Increased than before.
Decrease the machine’s load inertia and the
maximum motor rotation speed.
No change.
Check the investigation item No. 4.
3
Check the frequency at which power failure or
power supply alarm occurs.
Occurs more than once per hour.
Reduce the frequency at which power failure or
power supply alarm occurs.
The frequency is low.
Check the investigation item No. 4.
4
Check the capacity of the resistor unit.
Capacity is not sufficient.
Use a resistor unit with a greater capacity.
Capacity is sufficient.
Replace the power backup unit.
Warning No.
D5
Resister unit overheat :
An overheat was detected by the thermal sensor of the resistor unit.
Investigation details
Investigation results
Remedies
1
Check if the regenerative resistor reaches high
temperatures.
The regenerative resistor reaches high
temperatures.
Wait for cooling of the regenerative resistor and
wait for the overheat of the thermal to be released.
The regenerative resistor does not reach high
temperatures.
Check the investigation item No. 2.
2
Check whether the THM1/THM2 terminals of CN43
are correctly connected.
There is connection failure.
Connect correctly.
There is no connection failure.
Check the investigation item No. 3.
3
Check for a disconnection between AL1/AL2
terminals of the regenerative resistor.
There is disconnection.
Replace the regenerative resistor.
There is no disconnection.
Replace the power backup unit.
Summary of Contents for MDS-E
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Page 32: ...1 IB 1501229 F 1 Installation ...
Page 76: ...45 IB 1501229 F 2 Wiring and Connection ...
Page 132: ...101 IB 1501229 F 3 Safety Function ...
Page 142: ...111 IB 1501229 F 4 Setup ...
Page 277: ...MDS E EH Series Instruction Manual 4 Setup 246 IB 1501229 F ...
Page 278: ...247 IB 1501229 F 5 Servo Adjustment ...
Page 351: ...MDS E EH Series Instruction Manual 5 Servo Adjustment 320 IB 1501229 F ...
Page 352: ...321 IB 1501229 F 6 Spindle Adjustment ...
Page 404: ...373 IB 1501229 F 7 Troubleshooting ...
Page 455: ...MDS E EH Series Instruction Manual 7 Troubleshooting 424 IB 1501229 F ...
Page 456: ...425 IB 1501229 F 8 Maintenance ...
Page 475: ...MDS E EH Series Instruction Manual 8 Maintenance 444 IB 1501229 F ...
Page 476: ...445 IB 1501229 F 9 Power Backup System ...
Page 494: ...463 IB 1501229 F 10 Appx 1 Cable and Connector Assembly ...
Page 504: ...473 IB 1501229 F 11 Appx 2 D A Output Specifications for Drive Unit ...
Page 514: ...483 IB 1501229 F 12 Appx 3 Protection Function ...
Page 523: ...MDS E EH Series Instruction Manual 12 Appx 3 Protection Function 492 IB 1501229 F ...
Page 524: ...493 IB 1501229 F 13 Appx 4 Compliance to EC Directives ...
Page 528: ...497 IB 1501229 F 14 Appx 5 EMC Installation Guidelines ...
Page 540: ...509 IB 1501229 F 15 Appx 6 Higher Harmonic Suppression Measure Guidelines ...
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