User`s manual

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MELSEC-Q
13 TROUBLESHOOTING
Related buffer memory address
Axis 1 Axis 2 Axis 3 Axis 4 Axis 5 Axis 6 Axis 7 Axis 8
Setting range Remedy
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•
Check that there is no influence from
noise.
•
Check hardware for possibility of fault.
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After switching power from OFF to
ON/resetting the PLC CPU, turn ON the
PLC READY signal (Y0) again, make
sure that the module READY signal (X0)
is ON, and then make a start. (The
module is faulty if the module READY
signal (X0) does not turn ON.)
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Check whether the axis stop signal (Y10
to Y17) is ON or OFF and turn OFF the
axis stop signal that is ON.
Pr. 1
Software stroke limit upper limit value
0
1
100
101
200
201
300
301
400
401
500
501
600
601
700
701
Pr. 2
Software stroke limit lower limit value
2
3
102
103
202
203
302
303
402
403
502
503
602
603
702
703
Da. 6
Positioning address/movement amount
(Refer to Section 4.5)
-2147483648 to 2147483647 (pulse)
At start: Perform JOG operation (Refer to
Chapter 10) to change "
Md. 1
Current feed value" to within the
software stroke limit range.
Current value changing:
Change the new current value to
within the software stroke limit
range (Refer to Section 9.2.4).
During operation:
Correct "
Da. 6
Positioning
address/movement amount"
(Refer to Section 4.5).
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Review the sequence program that turns
ON/OFF the PLC READY signal (Y0).
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Perform JOG operation (Refer to
Chapter 10) to move the axis to the
position where the near-point dog turns
OFF, and then start machine OPR
control (Refer to Section 8.2.3, Section
8.2.7 and Section 8.2.8).
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After turning OFF the zero signal, start
machine OPR control (Refer to Section
8.2.5 and Section 8.2.6).
5 152 252 352 452 552 652 752
Cd. 3
Start method
0 : Positioning control
9000 : Machine OPR control
9001 : Fast OPR control
Before starting fast OPR control, perform
machine OPR control (Refer to Section
8.2).