YASKAWA E7LVD002 Technical Manual page 180

Digital
Operator Display
CPF04
CPU Internal A/D Converter Fault
Internal A/D Err
CPF05
CPU External A/D Converter Fault
External A/D Err
CPF07
ASIC Internal RAM Fault
RAM-Err
(RAM)
CPF08
Watchdog Timer Fault
WAT-Err
(WAT)
CPF09
CPU-ASIC Mutual Diagnosis Fault
CPU-Err
(COY)
CPF10
ASIC Version Fault
ASIC-Err
(ASIC)
CPF20
Option A/D Error
Option Card Fault
CPF21
Self-diagnosis Fault of Communication
Option CPU Down
Option Card
CPF22
Communication Option Card Code Number
Option Type Err
Fault
Table 6.3 Fault Displays and Processing (Continued)
Description
Diagnostic & Troubleshooting 6 - 8
Cause
Noise or spike on the control
circuit input terminals.
Noise or spike on the control
circuit input terminals.
- - -
Control circuit damage
- - -
Control circuit damage
- - -
Control circuit damage
Control circuit damage
Option card connector
connection fault.
Option card A/D converter
fault.
Noise or spike on the commu-
nication line, defective option
board.
Unrecognizable option board
is connected to the control
board.
Corrective Action
Perform a factory initialization.
Cycle power off and on to the
Drive.
Replace the control board.
Perform a factory initialization.
Cycle power off and on to the
Drive.
Replace the control board.
Cycle power off and on to the
Drive.
Replace the Drive.
Cycle power off and on to the
Drive.
Replace the Drive.
Cycle power off and on to the
Drive.
Replace the Drive.
Replace the Drive.
Remove all inputs to the option
board.
Perform a factory initialization.
Cycle power off and on to the
Drive.
Replace the option board.
Replace the Control board.
Perform a factory initialization.
Cycle power off and on to the
Drive.
Replace the option board.
Replace the control board.
Remove any option boards.
Cycle power off and on to the
Drive.
Perform a factory initialization.
Replace the option board.
Replace the control board.