3. TROUBLESHOOTING AND
RECOVERY PROCEDURES
B–65195EN/01
TROUBLESHOOTING AND RECOVERY
52
NOTE
The parameter numbers in the table are in the following
order:
No. (Series 0–C)–(Series 15)–(Series 16, 18, 20, 21)
Survey
If the adjustments described below cannot eliminate overflow, let us work
out the setting procedure individually.
Adjustment 1:
POA1 overflow (No. 8X47–1859–2047)
Use the tenfold POA1 setting function.
Note) This function is available
for 9060/L. 9070/C, 9046/A,
and later versions.
D How to use the tenfold POA1 setting function
If POA1 is specified as a negative value, the absolute value is internally
multiplied by 10. If the value you want to set is a positive value, specify
as follows:
(–1) the desired setting/10
Adjustment 2:
One–pulse suppress (No. 1992–2099)
Reduce the setting according to the flowchart shown below. If an
overflow occurs in the FS0C, stop using it, because the level parameter
is fixed at a standard value of 400.
Number of velocity FB pulses
Is the system a semiclosed system with serial
pulse coder A or an α pulse coder?
No Yes
One–pulse suppress
parameter setting
Reduce the setting so that the value of the above formula falls within one word (32767).
Feed gear denominator
Number of position FB pulses
Feed gear numerator
10000
8192
XX X
1
80
X
One–pulse suppress
parameter setting
Reduce the setting so that the value of the above formula falls within one word (32767).
Feed gear denominator
Number of position FB pulses
Feed gear numerator
10000
8192
1
80
One–pulse suppress
parameter setting
Number of velocity FB pulses
Reduce the setting so that the value of the above formula falls within one word (32767).
Feed gear denominator
Number of position FB pulses
Feed gear numerator
10000
8192
XX X
NOTE
Number of velocity FB pulses (No. 8X23–1876–2023)
Number of position FB pulses (No. 8X24–1891–2024)
Feed gear numerator (No. 8X84–1977–2084)
Feed gear denominator (No. 8X85–1978–2085)