YASKAWA CIMR-R5U23P71A Instruction Manual page 51

Fault Display
OL
Input Over Loaded
EF3
External Fault 3
EF4
External Fault 4
OPR
Oper Disconnect
ERR
EEPROM R/W Err
CPF00
COM-ERR (OP&CONV)
CPF01
COM-ERR (OP&CONV)
CPF02
BB Circuit Err
CPF03
EEPROM Err
CPF04
Internal A/D Err
YASKAWA ELECTRIC TOEP C710656 01C YASKAWA - RC5 Instruction Manual
Meaning
Power Regenerative Unit Input
Overload
Power regenerative unit input exceeded
the overload capacity.
External fault
(terminal S3-SC)
External fault
(terminal S4-SC)
Operator Connection Fault
The Operator was disconnected during
operation started by a run command
from the Operator.
EEPROM Write Error
Control Circuit Error 1
(Operator Communications Error)
Control Circuit Error 2
(Operator Communications Error)
Baseblock Circuit Error
EEPROM Error
CPU Internal A/D Converter Error
Probable Causes
The load is too heavy.
An external fault was input from a
multi-function input.
—
—
• Communications with the digital
operator were not established within 5
seconds after the power was turned
on.
• MPU peripheral element check fault.
• After communications were
established, there was a transmission
error with the digital operator for
more than 2 seconds.
• MPU peripheral element check fault
The control circuit is damaged.
6.1 Fault Detection
Corrective Actions
Check the size of the load.
• Reset external fault inputs to the
multi-function inputs.
• Remove the cause of the external
fault.
Check the Operator connection.
A verification error occurred when
writing EEPROM.
Try turning the power supply off and on
again.
Try setting the constants again.
• Disconnect the digital operator and
then connect it again.
• Check the wiring of the control circuit
power supply.
• Replace the control card.
• Disconnect the digital operator and
then connect it again.
• Check the wiring of the control circuit
power supply.
• Replace the control card.
Replace the control card.
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