
Chapter 6
Troubleshooting
190
In the panel window, the error numbers follow E in the display.
Error No.
Error name
Description, action, etc.
E72
Motor configuration information
outside supported function
information range
A motor whose configuration information is outside the
range supported by the driver unit is installed.
E73
Encoder resolution mismatch
error
The encoder resolution in the system’s axis-specific
parameter and that of the installed encoder do not match.
E74
Encoder division ratio mismatch
error
The encoder division ratio in the system’s axis-specific
parameter and that of the installed encoder do not match.
E75
Encoder linear/rotary type
mismatch error
The encoder linear/rotary type in the system’s axis-specific
parameter and that of the installed encoder do not match.
E76
Encoder ABS/INC type mismatch
error
The encoder ABS/INC type in the system’s axis-specific
parameter and that of the installed encoder do not match.
E77
Magnetic-pole sensor installation
specification mismatch error
The magnetic-sensor installation specification in the
system’s axis-specific parameter and that of the installed
encoder do not match.
E78
Brake installation specification
mismatch error
The brake installation specification in the system’s
axis-specific parameter and that of the installed encoder
do not match.
E79
Abnormal response error when
sending EEPROM-data setting
slave command
An abnormal response was received when an
EEPROM-data setting slave command was sent.
E7A
Maximum receive size over error
when sending EEPROM-data
setting slave command
The receive size exceeded the limit value when an
EEPROM-data setting slave command was sent.
E7B
Motor-drive power ON timeout
error
Abnormal current flow from the motor-drive power source
E7C
Register read/write test error
Error reading/writing the register
E7D
Linear axis parameter error
Check in each axis parameter No. 38, No. 68 or No. 1.
E7E
Linear-movement axis parameter
error
Check axis-specific parameter Nos. 38, 68, 1, etc.
E7F
Parameter error
The parameter is invalid.
E80
Unsupported card error
An unsupported card is installed in an I/O slot.
E81
Priority auto-assignment card
non-detection error
Priority auto-assignment card cannot be detected.
E82
Card mismatch error
The combination or positioning of I/O slot cards has a
problem.
E83
I/O slot card error
The I/O slot card is invalid.
E84
Resolution parameter error
Check axis-specific parameter Nos. 47, 50, 51, 44, 42, 43,
1, 37, etc.
E85
Driver ready OFF factor
indeterminable error
Driver ready OFF factor cannot be determined.
E86
Fieldbus error (FBVCCER)
A fieldbus error (FBVCCER) was detected.
E87
Fieldbus error (FBPOWER)
A fieldbus error (FBPOWER) was detected.
E88
Power error (Other)
A power error (Other) was detected. This error also
generates when the power OFF
→
ON interval is short.
After the power has been turned off, be sure to wait for at
least 5 seconds before turning it back on. Abnormal
regenerative resistance temperature is also suspected.
Cold-st
art lev
el errors
E89
SCIF open error in non-AUTO
mode (Servo in use)
In a mode other than AUTO, opening of the serial 1
channel (also used by the PC software/TP port) from a
SEL program is prohibited while the servo is in use (to
ensure safety).
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