Specifications

61
Protective Functions
A PID feedback reference loss was detected (b5-12 = 2) and the PID feedback input was less than b5-13 (PID
feedback loss detection level) for longer than the time set in b5-14 (PID feedback loss detection time).
An “external fault” was input from a communications option card.
An
“
external fault
”
was input from a multi-function input terminal.
The rotation position moved during zero servo operation
The connection to the digital operator was broken during operation for a run command from the
digital operator.
A normal reception was not executed for 2 seconds or longer after control data was received once.
A communications error was detected during a run command or a frequency reference mode from
a communications option card.
Communications with the digital operator were not established within 5 seconds after the power was
turned on.
CPU external RAM fault.
After communications were established, there was a communications error with the digital operator
for more than 2 seconds.
A control part fault.
The option card is not connected properly.
The control circuit is damaged.
The control circuit is faulty.
The option card
,
s A/D converter is faulty.
Communications option card fault.
PID Feedback
Reference Lost （FbL）
External Fault Input from
Communications
Option Card （EF0）
External Fault
(Input Terminal S3) （EF3）
External Fault
(Input Terminal S4) （EF4）
External Fault
(Input Terminal S5) （EF5）
External Fault
(Input Terminal S6) （EF6）
External Fault
(Input Terminal S7) （EF7）
External Fault
(Input Terminal S8) （EF8）
External Fault
(Input Terminal S9) （EF9）
External Fault
(Input Terminal S10) （EF10）
External Fault
(Input Terminal S11) （EF11）
External Fault
(Input Terminal S12) （EF12）
Zero Servo Fault （SVE）
Digital Operator
Connection Fault （OPR）
MEMOBUS Communications
Error （CE）
Option Communications
Error （BUS）
Digital Operator
Communications Error 1
CPU External RAM Fault （CPF00）
Digital Operator
Communications Error 2
（CPF01）
Baseblock Circuit
Error （CPF02）
EEPROM Error （CPF03）
CPU Internal A/D
Converter Error （CPF04）
CPU External A/D
Converter Error （CPF05）
Option Card
Connection Error （CPF06）
ASIC Internal RAM
Fault （CPF07）
Watchdog Timer
Fault （CPF08）
CPU-ASIC Mutual
Diagnosis Fault （CPF09）
ASIC Version
Fault （CPF10）
Option Card Error （CPF20）
No display
An excessive imbalance occurred in the main circuit capacitor
,
s neutral point potential.
There was a drop in control power voltage.
Communications Option Card
Self Diagnosis Error （CPF21）
Communications Option Card
Model Code Error （CPF22）
Communications Option Card
DPRAM Error （CPF23）
Main Circuit Capacitor Neutral
Point Potential Error （VCF）
Fault Display Meaning
FbL
Feedback
Loss
EF0
Opt External
Flt
EF3
Ext Fault
S3
EF4
Ext Fault
S4
EF5
Ext Fault
S5
EF6
Ext Fault
S6
EF7
Ext Fault
S7
EF8
Ext Fault
S8
EF9
Ext Fault
S9
EF10
Ext Fault
S10
EF11
Ext Fault
S11
EF12
Ext Fault
S12
SVE
Zero Servo
Fault
OPR
Oper
Disconnect
CE
Memobus
Com Err
BUS
Option
Com Err
CPF02
BB Circuit
Err
CPF03
EEPROM
Error
CPF04
Internal
A/D Err
CPF05
External
A/D Err
CPF20
Option
A/D error
CPF21
Option
CPU down
CPF22
Option
Type Err
CPF23
Option
DPRAM Err
−
CPF06
Option
error
CPF07
RAM-Err
CPF08
WAT-Err
CPF09
CPU-Err
CPF10
ASIC-Err
VCF
Vcn Failure
CPF00
CPF
CPF01
CPF01