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Chapter 16 Troubleshooting
Related buffer memory address
Set range
(Setting with sequence program)
Remedy
QD77MS2
QD77MS4
QD77MS16
1+150n 1,10,100,1000
• Set AL and AM values which make "Movement amount per
rotation (AL)" × "Unit magnification (AM)" within 2147483647,
and then turn the PLC READY signal [Y0] from OFF to ON.
• With the setting brought into the setting range, turn the PLC
READY signal [Y0] from OFF to ON.
6+150n
7+150n
0 [PLS/s]
0 [
10
-2
mm/min or others]
• Set the bias speed to not more than the speed limit value.
• With the setting brought into the setting range, turn the PLC
READY signal [Y0] from OFF to ON.
Unit magnification
0.001 ≤ Electronic gear ≤ 320000
Electronic gear =
Pr.2
Pr.3 × Pr.4
"[Pr.2] Number of pulses per rotation (AP)",
"[Pr.3] Movement amount per rotation (AL)",
"[Pr.4] Unit magnification (AM)"
Review these parameters.
(Refer to Section 5.2.1)
1+150n
Number of pulses per rotation
2+150n
3+150n
Movement amount per rotation
4+150n
5+150n
10+150n
11+150n
<Speed limit value>
1 to 1000000000 [PLS/s]
1 to 2000000000 [
10
-2
mm/min or others]
• Set a value which is not less than the OPR speed.
• With the setting brought into the setting range, turn the PLC
READY signal [Y0] from OFF to ON.
12+150n
13+150n
1 to 8388608
With the setting brought into the setting range, turn the PLC
READY signal [Y0] from OFF to ON.
14+150n
15+150n
1 to 8388608
17+150n
0 ≤
Pr.11 × Pr.2
Pr.3 × Pr.4
≤ 4194303
"[Pr.2] Number of pulses per rotation (AP)",
"[Pr.3] Movement amount per rotation (AL)",
"[Pr.4] Unit magnification (AM)"
"[Pr.11] Backlash compensation amount"
Review the items above.
(Refer to Section 5.2.1 or Section 5.2.3)
18+150n
19+150n
• [mm] [inch] [PLS]
–2147483648 to 2147483647
• [degree] 0 to 35999999
• Bring the setting into the setting range.
• In a unit other than "degree", set so that the lower limit value
is smaller than the upper limit value.
20+150n
21+150n
• [mm] [inch] [PLS]
–2147483648 to 2147483647
• [degree] 0 to 35999999
n: Axis No.-1