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Chapter 16 Troubleshooting
Classification
of errors
Error
code
Error name Error Operation status at error occurrence
975
Driver communication
setting error
• Setting the driver communication to servo
amplifier which does not support the
driver communication.
• The driver communication setting is
different in the module and the servo
amplifier.
The communication between servo amplifiers
of target axis is not executed.
(The servo amplifier's LED display remains
"Ab".)
976
Manual pulse
generator/Incremental
synchronous encoder
input type selection
error
The set value of the detailed parameter 2
"Manual pulse generator/Incremental
synchronous encoder input type selection"
is outside the setting range.
977
Operation setting for
speed-torque control
mode error
The set value of the detailed parameter 2
"Operation setting for speed-torque control
mode" is outside the setting range.
978
External command
signal selection error
The set value of the detailed parameter 2
"External command signal selection" is
outside the setting range.
979
ABS synchronous
encoder unsupported
error
"Servo series" of the axis which uses the
ABS synchronous encoder is other than "3:
MR-J3-
BS".
980 OPR method error
The set value of the OPR basic parameter
" OPR method" is outside the setting range.
981 OPR direction error
The set value of the OPR basic parameter
"OPR direction" is outside the setting
range.
982
OP address setting
error
The set value of the OPR basic parameter
"OP address" is outside the setting range.
983 OPR speed error
• The set value of the OPR basic
parameter "OPR speed" is outside the
setting range.
• The set value of the OPR basic
parameter "OPR speed" is smaller than
the bias speed at start.
984 Creep speed error
• The set value of the OPR basic
parameter "Creep speed" is outside the
setting range.
• The set value of the OPR basic
parameter "Creep speed" is larger than
the OPR speed.
• The set value of the OPR basic
parameter "Creep speed" is smaller than
the bias speed at start.
Parameter
setting range
errors
985 OPR retry error
The set value of the OPR basic parameter
" OPR retry" is outside the setting range.
The QD77 READY signal [X0] is not turned
ON.
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