YASKAWA Varispeed G7 Series Instruction Manual page 429

Display
MEMOBUS Communications
CE Error
Memobus A normal reception was not possi-
Com Err ble for 2 s or longer after control
data was received once.
Option Communications Error
A communications error was
BUS
detected during a Run Command or
Option
while setting a frequency reference
Com Err
from a Communications Option
Board.
E5 SI-T Watchdog Error
SI-T WDT Consistency error of received con-
Err trol data
SI-F/G Communications Error
Detected
A communications error was
E-15
detected when a Run Command or
SI-F/G
frequency reference was set from an
Com Err
option board and continuous opera-
tion was set for the E-15 operation
selection.
SI-F/G Option Board CPU Fail-
E-10
ure
SI-F/G
SI-F/G Option Board operation
CPU down
failed.
Digital Operator Communica-
tions Error 1
Communications with the Digital
Operator were not established
CPF00
within 5 seconds after the power
COM-ERR
was turned on.
(OP &
INV)
CPU External RAM Fault
Digital Operator Communica-
CPF01 tions 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
BB Circuit Baseblock Circuit Error
Err
-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. Replace the Inverter.
The control circuits were destroyed.
The Digital Operator isn't connected
properly.
The Inverter's control circuits are faulty. Replace the Inverter.
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 timing
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.
Try turning the power supply off
–
and on again.
Replace the Inverter.
Disconnect the Digital Operator
and then connect it again.
Try turning the power supply off
–
and on again.
Replace the Inverter.
Corrective Actions