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Chapter 5 Data Used for Positioning Control
Storage item Storage details Reading the monitor value
Error history (Up to 16 records can be stored)
[Md.9]
Axis in which
the error
occurred
Stores an axis No. in which an
error occurred.
Refresh cycle: Immediate
Monitoring is carried out with a decimal display.
Monitor
value
Storage value
1: Axis 1 5: Axis 5 9: Axis 9 13 : Axis 13
2: Axis 2 6: Axis 6 10: Axis 10 14: Axis 14
3: Axis 3 7: Axis 7 11: Axis 11 15: Axis 15
4: Axis 4 8: Axis 8 12: Axis 12 16: Axis 16
: Valid for the range from axis 1 to axis 2
in the QD77MS2, from axis 1 to axis 4
in the QD77MS4.
[Md.10]
Axis error No.
Stores an axis error No.
Refresh cycle: Immediate
Monitoring is carried out with a decimal display.
Monitor value Axis error No.
For details of error codos,
refer to Section 16.4 "List
of errors".
[Md.57]
Servo alarm
Stores the LED display details of
servo amplifier detection alarm.
("0" is stored other than when a
servo error occurs.)
Refresh cycle: Immediate
Monitoring is carried out with a hexadecimal display.
When SSCNET setting is SSCNET /H
0
Monitor
value
Servo alarm code
00
Servo alarm code
Monitor
value
When SSCNET setting is SSCNET
[Md.61]
Driver
operation
alarm number
Store the driver operation alarm
number.
Refresh cycle: Immediate
Monitoring is carried out with a hexadecimal display.
Monitor value
Detailed number
Driver
operation
alarm
Example) When the driver operation alarm is "10H" and the detailed
number is "23H", "1023H" is displayed.
[Md.55]
Axis error
occurrence
(Year: month)
Stores the time (Year: month) at
which an axis error was detected.
Refresh cycle: Immediate
Monitoring is carried out with a hexadecimal display.
0
b15 b12
000100000000110
b8 b4 b0
8
060
Buffer memory (stored with BCD code)
0 to 9 0 to 9 0 to 1
01 to 12 (month)
0 to 9
Monitor value
8006
00 to 99 (year)
[Md.11]
Axis error
occurrence
(Day: hour)
Stores the time (Day: hour) at
which an axis error was detected.
Refresh cycle: Immediate
Monitoring is carried out with a hexadecimal display.
0
b15 b12
010100000010101
b8 b4 b0
8
152
Buffer memory (stored with BCD code)
0 to 2
0 to 9
00 to 23 (hour)
Monitor value
8
215
0 to 3 0 to 9
01 to 31 (day)
[Md.12]
Axis error
occurrence
(Minute:
second)
Stores the time (Minute: second)
at which an axis error was
detected.
Refresh cycle: Immediate
Monitoring is carried out with a hexadecimal display.
0
b15 b12
100100100000111
b8 b4 b0
9074
Buffer memory (stored with BCD code)
0 to 5 0 to 9
00 to 59 (minute)
00 to 59 (second)
0 to 9
Monitor value
9407
0 to 5
[Md.13]
Error history
pointer
Indicates a pointer No. that is
next to the pointer No. assigned
to the latest of the existing
records.
Refresh cycle: Immediate
Monitoring is carried out with a decimal display.
Monitor value
Storage value
(Pointer number)
0 to 15