Protective and Diagnostic Functions
7-
9
CPF06
Option
error
Option Card Connection Error
The option card is not connected prop-
erly.
Turn off the power and insert the
card again.
The MxC or option card is faulty.
Replace the option card or the
MxC.
CPF07
RAM-Err
ASIC Internal RAM Fault
-
Try turning the power supply off
and on again.
The control circuit is damaged.
Replace the MxC.
CPF08
WAT-Err
Watchdog Timer Fault
-
Try turning the power supply off
and on again.
The control circuit is damaged.
Replace the MxC.
CPF09
CPU-Err
CPU-ASIC Mutual Diagnosis Fault
-
Try turning the power supply off
and on again.
The control circuit is damaged.
Replace the MxC.
CPF10
ASIC-Err
ASIC Version Fault
The MxC control circuit is faulty
Replace the MxC.
CPF20
Option
A/D error
Communications Option Card
A/D Converter Error
The option card is not connected prop-
erly.
Turn off the power and insert the
card again.
The option card's A/D converter is
faulty.
Replace the Communications
Option Card.
CPF21
Option
CPU down
Communications Option Card Self
Diagnostic Error
Communications Option Card fault.
Replace the option card.
CPF22
Option
Type Err
Communications Option Card
Model Code Error
CPF23
Option
DPRAM
Err
Communications Option Card
DPRAM Error
Table 7.1 Fault Displays and Processing (Continued)
Display
Meaning
Probable Causes
Corrective Actions