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-start level 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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