D2:cpu built-in a/d is defective, F0:rom is defective, F1:eeprom is defective – Yaskawa YASNAC PC NC Maintenance Manual User Manual

Page 62

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Chapter 4: Troubleshooting

PC NC Maintenance Manual

4-41

If the temperature of the control card exceeds 85ºC, the current is inter-
cepted due to control card temperature error 1 (46).

D2:CPU built-in A/D is defective.

Error Contents

Built-in A/D converter is defective.

Cause and measures

F0:ROM is defective.

Error Contents

Memory (PROM) is defective.

Cause and measures

F1:EEPROM is defective

Error Contents

Memory (EEPROM) is defective.

Cause and measures

Cause Measures

Ambient temperature is high.

Check the ambient temperature.
Improve the cooling.

Control card fault

Exchange unit (exchange control card)

Cause Measures

The (2.5V) voltage is defective for A/D
converter check.

Check the voltage.
Exchange unit (exchange control card)

A/D converter fault

Exchange unit (exchange control card)

Cause Measures

PROM is defective.

Exchange PROM.
Exchange unit (exchange control card)

Cause Measures

Memory (EEPROM) is defective.

Exchange unit (exchange control card)

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