Yaskawa YASNAC PC NC Maintenance Manual - Manual (Page 94)

Chapter 4: Troubleshooting PC NC Maintenance Manual
4-73
CPF00:Control circuit error 1.
Error Contents The serial transmission error between inverter and operators
5 seconds have past after power turned ON, inverter control card and
operator transmission are not consistent (detects and displays by soft-
ware on the operator side.)
CPF01:The control circuit is abnormal 2.
Error Contents The serial transmit error between inverter and operators
More than two seconds of transmission error occurred when inverter
control card and operator transmission are consistent once power
turned ON. (detects and displays by software on the operator side.)
Cause and measures
Cause Measures
The digital operator connector contact is defec-
tive. Check that there are no loose insertions on connectors
(3CN).
The digital operator fault Exchange a digital operator with a non-defective one.
Improper connection of power supply signal
conductor of I/O card connector (6CN) Check power supply signal conductor wiring of I/O card
connector (6CN).
I/O card fault Exchange the I/O card with a non-defective one.
Improper connection of power supply signal
conductor of control card connector (1CN) Check the power supply signal conductor wiring of the
control card connector (1CN).
Control card fault Exchange unit (exchange control card)
Cause Measures
Digital operator connector contact defective Check that there are no loose insertion of connector
(3CN).
Check that there is no defect in the digital operator and
connector.
Improper connection of power supply signal
conductor of I/O card connector (6CN) Check power supply signal conductor wiring of I/O card
connector (6CN).
I/O card fault Exchange unit (exchange I/O card)
Improper connection of power supply signal
conductor of control card connector (1CN) Check power supply signal conductor wiring of control
card connector (1CN).
Control card fault Exchange unit (exchange control card)