
2. SETTING αiS/αiF/βiS SERIES SERVO PARAMETERS B-65270EN/05
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Alarm
detail No.
Parameter No.
(Series 15i)
Parameter No.
(Series 30i, 16i,
and so on)
Cause Action
853 1978 2085
A positive value is not set as the
flexible feed gear denominator.
Set a positive value as the flexible
feed gear denominator.
883 1981 2088
For an axis with a serial type
separate detector, a value
exceeding 100 is set as the machine
velocity feedback coefficient.
For an axis with a serial type
separate detector, the upper limit
of the machine velocity feedback
coefficient is 100. Correct the
coefficient so that it does not
exceed 100.
884
885
886
1981 2088
The internal value of the machine
velocity feedback coefficient
overflowed.
Decrease the machine velocity
feedback coefficient.
Alternatively, use the
vibration-damping control function
that has an equivalent effect.
926
927
928
1985 2092
The internal value of the look-ahead
feed-forward coefficient overflowed.
Use the "position gain precision
optimization function" or the
"position gain increment function".
→ See Supplementary 5.
953
1988
1763
2808
2095
2140
2395
The internally set value of the
feed-forward timing adjustment
coefficient is ±12800 or over.
This error can be avoided by
setting bit 4 of parameter No. 2612
(for the Series 15i) or bit 5 of
parameter No. 2224 (for the Series
16i and so on) to 1 if not
nano-interpolation is used.
994
995
996
1992 2099
The internal value for N pulse
suppression overflowed.
Disable the N pulse suppression
function.
(Series 15i : No.1808#4=0, Series
30i, 16i, and so on : No.2003#4=0)
Alternatively, decrease the
parameter setting so that no
overflow will occur.
1033 1996 2103
There is a difference in retract
distance under unexpected
disturbance torque between position
tandem synchronous axes (if the
same-axis retract function is in use).
Set the same value for position
tandem synchronous axes.
1123 1705 2112
Although a linear motor is used, the
AMR conversion coefficient
parameter is not input.
Set the AMR conversion
coefficient.
1182
1729
1971
1972
2118
2078
2079
The dual position feedback
conversion coefficient has not been
specified.
Specify the dual position feedback
conversion coefficient.
1284
1285
1736 2128
When a small value is set as the
number of velocity pulses, the
internal value of a parameter related
to current control overflows.
Decrease the value in this
parameter to the extent that the
alarm is not caused.
1294
1295
1752 2129
When a large value is set as the
number of velocity pulses, the
internal value of a parameter related
to current control overflows.
When the value set in this
parameter is resolved to the form a
× 256 + b, set a smaller value in a
again.