M800/M80/E80 Series Maintenance Manual
5 Troubleshooting
141
IB-1501273-F
5.1.1 Possible Causes of Trouble
The most common cause is a cable contact defect and wire breakage defect.
Is the connection correct?
Are the cables bent or stepped on?
Are the joints of the cables and connectors deteriorated?
Was a continuity test done on the cables?
Is any of the terminal block or connector screws loosen?
Is there any oil or cutting oil splattered onto the cables?
Was a cable disconnected while the power was ON?
Is any cable overheated?
Often trouble occurs due to fluctuation in the power voltage or noise from the communication cable.
Is the power voltage always correct?
Is the power frequency always correct?
Does the voltage fluctuate depending on the time?
Does the voltage drop momentarily when a peripheral device starts operation?
Was there an instantaneous power failure before the trouble?
Have measures against noise been taken for each unit?
Are the communication and power system cables separated and laid?
Is the communication cable shield sufficient?
The trouble may also occur due to sudden temperature changes or vibration and impact, although this is rare.
Are the ambient temperature and humidity adequate?
Is the fan in the panel where the unit is stored rotating?
Is the panel fixed on a flat and stable floor with little vibration?
Содержание E80 Series
Страница 1: ......
Страница 7: ......
Страница 17: ......
Страница 19: ......
Страница 21: ......
Страница 23: ......
Страница 25: ......
Страница 28: ...1 1 IB 1501273 F System Basic Configuration ...
Страница 68: ...2 41 IB 1501273 F Daily Maintenance and Periodic Maintenance ...
Страница 78: ...3 51 IB 1501273 F Maintenance of the Drive Unit ...
Страница 101: ...M800 M80 E80 Series Maintenance Manual 3 Maintenance of the Drive Unit 74 IB 1501273 F ...
Страница 102: ...4 75 IB 1501273 F Failure Diagnosis ...
Страница 165: ...M800 M80 E80 Series Maintenance Manual 4 Failure Diagnosis 138 IB 1501273 F ...
Страница 166: ...5 139 IB 1501273 F Troubleshooting ...
Страница 169: ...M800 M80 E80 Series Maintenance Manual 5 Troubleshooting 142 IB 1501273 F ...
Страница 170: ...6 143 IB 1501273 F Replacing Each Unit ...
Страница 194: ...M800 M80 E80 Series Maintenance Manual 6 Replacing Each Unit 167 IB 1501273 F FCU8 DX651 Mounting screw size M5 ...
Страница 205: ...M800 M80 E80 Series Maintenance Manual 6 Replacing Each Unit 178 IB 1501273 F ...
Страница 212: ......