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Appendix - 73
Appendices
Operation chart
1)
The machine OPR is started.
The OPR is executed based on the positioning pattern set in AlphaStep/5-
phase.)
Machine OPR start
(Positioning start signal)
OFF
ON
OFF
ON
OFF
ON
V
t
OPR request flag
( Md.31 Status: b3)
OPR complete flag
( Md.31 Status: b4)
Md.26
Axis operation status
Md.20 Current feed value
Md.21 Machine feed value
Standby
OPR
Standby
Inconsistent
OP address
Driver OPR method
(3) Servo OFF
• For 5-phase (open loop control system), if the motor is moved by an
external force when servo OFF occurs, it is not possible to detect the
position and position information is not updated.
• Do not rotate the motor during servo OFF. If the motors are rotated, a
position displacement occurs.
• For 5-phase (open loop control system), "OPR request flag" (
Md.31
Status
: b3) turns ON in a servo OFF state. After turning servo ON,
perform an OPR again.
• For 5-phase (open loop control system) when an encoder is installed,
checking position displacement and maladjustments is possible by
monitoring "position feedback" and "external encoder counter value" in
the optional data monitor. Refer to the manual of AlphaStep/5-phase for
the units and increase direction of the encoder count value, and checking
methods.
Содержание MELSEC-L Series
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Страница 140: ...4 22 Chapter 4 Installation Wiring and Maintenance of the Product MEMO ...
Страница 253: ...5 113 Chapter 5 Data Used for Positioning Control MEMO ...
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Страница 438: ...7 20 Chapter 7 Memory Configuration and Data Process MEMO ...
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Страница 485: ...9 25 Chapter 9 Major Positioning Control MEMO ...
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Страница 656: ...11 32 Chapter 11 Manual Control MEMO ...
Страница 690: ...12 34 Chapter 12 Expansion Control MEMO ...
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Страница 899: ...16 15 Chapter 16 Troubleshooting MEMO ...
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