YASKAWA Varispeed G7 Instruction Manual page 400

Display
MEMOBUS Communications Error
CE
A normal reception was not possible
Memobus
for 2 s or longer after control data was
Com Err
received once.
Option Communications Error
BUS A communications error was detected
Option during a Run Command or while set-
Com Err ting a frequency reference from a
Communications Option Board.
E5 SI-T Watchdog Error
SI-T WDT Consistency error of received control
Err data
SI-F/G Communications Error
Detected
E-15 A communications error was detected
SI-F/G when a Run Command or frequency
Com Err reference was set from an option
board and continuous operation was
set for the E-15 operation selection.
E-10
SI-F/G Option Board CPU Failure
SI-F/G
SI-F/G Option Board operation failed.
CPU down
Digital Operator Communications
Error 1
Communications with the Digital
Operator were not established within 5
CPF00
seconds after the power was turned
COM-ERR
on.
(OP &
INV)
CPU External RAM Fault
Digital Operator Communications
CPF01 Error 2
COM-ERR After communications were estab-
(OP & lished, there was a communications
INV) error with the Digital Operator for
more than 2 seconds.
CPF02
Baseblock Circuit Error
BB Circuit
Err
CPF03
EEPROM Error
EEPROM
Error
-10
7
Table 7.1 Fault Displays and Processing (Continued)
Meaning
Synchronization error between master
controller and Inverter for control
data.
Digital Operator connection is faulty.
Inverter control circuit is faulty.
The Digital Operator's connector isn't
connected properly.
The Inverter's control circuits are
faulty.
The control circuits were destroyed.
The Digital Operator isn't connected
properly.
The Inverter's control circuits are
faulty.
The control circuit is damaged.
The Inverter power supply was shut
off while writing data to the Inverter
constants.
The control circuit is damaged.
Probable Causes
Check the communications
devices and communications sig-
-
nals.
Check the communications
devices and communications sig-
-
nals.
Check the communications tim-
ing such as communications cycle.
Refer to MECHATROLINK COM-
MUNICATIONS INTERFACE
CARD INSTRUCTIONS
(TOBPC73060008) for details.
Check the communications sig-
-
nals.
Disconnect and then reconnect the
Digital Operator.
Replace the Inverter.
Disconnect the Digital Operator
and then connect it again.
Replace the Inverter.
Try turning the power supply off
-
and on again.
Replace the Inverter.
Disconnect the Digital Operator
and then connect it again.
Replace the Inverter.
Try turning the power supply off
-
and on again.
Replace the Inverter.
Try turning the power supply off
-
and on again.
Initialize the constant settings
(A1-03).
Replace the Inverter.
Corrective Actions