14 - 11
Chapter 14 Common Functions
[2] Precautions during parameter setting
(1) When other than "1: External input signal of servo amplifier" and "2: Buffer
memory of LD77MS" is set, the error "External input signal selection error"
(error code: 936) occurs at turning when the PLC READY signal [Y0] ON, and
the READY signal [X0] is not turned ON.
[3] Control details
The following table shows the external signal that becomes valid by setting
"
Pr.80
External input signal selection
".
"
Pr.80
External input signal selection"
External signal that becomes valid
External input signal of servo amplifier
(Setting value: 1)
Upper/lower stroke limit signal
: External input signal of servo amplifier
(FLS, RLS)
Near-point dog signal
: External input signal of servo amplifier
(DOG)
Stop signal
: Buffer memory of LD77MS (STOP)
External command/switching signal: External input signal of LD77MS (DI)
Buffer memory of LD77MS
(Setting value: 2)
Upper/lower stroke limit signal
: Buffer memory of LD77MS (FLS, RLS)
Near-point dog signal
: Buffer memory of LD77MS (DOG)
Stop signal
: Buffer memory of LD77MS (STOP)
External command/switching signal: External input signal of LD77MS (DI)
[4] Program example
The following shows the program example that is used to operate "
Cd.44
External input signal operation device
" of axis 1, axis 4, axis 8, and axis 16 using
the limit switch connected to the input module when "2: Buffer memory of
LD77MS" is set in "
Pr.80
External input signal selection
".
System configuration
The following shows the system configuration that is used with the program example.
FLS1
RLS1
DOG1
STOP1
FLS4
RLS4
DOG4
STOP4
(1)
(2)
(3) (4)
X20 to X5F
(1) L61P
(2) L26CPU
(3) LD77MS16 (X0 to X1F/Y0 to Y1F)
(4) LX42C4 (X20 to X5F)
Summary of Contents for MELSEC-L Series
Page 2: ......
Page 30: ...MEMO ...
Page 70: ...2 10 Chapter 2 System Configuration MEMO ...
Page 83: ...3 13 Chapter 3 Specifications and Functions MEMO ...
Page 103: ...3 33 Chapter 3 Specifications and Functions MEMO ...
Page 107: ...3 37 Chapter 3 Specifications and Functions MEMO ...
Page 111: ...3 41 Chapter 3 Specifications and Functions MEMO ...
Page 115: ...3 45 Chapter 3 Specifications and Functions MEMO ...
Page 140: ...4 22 Chapter 4 Installation Wiring and Maintenance of the Product MEMO ...
Page 253: ...5 113 Chapter 5 Data Used for Positioning Control MEMO ...
Page 342: ...5 202 Chapter 5 Data Used for Positioning Control MEMO ...
Page 438: ...7 20 Chapter 7 Memory Configuration and Data Process MEMO ...
Page 440: ...MEMO ...
Page 485: ...9 25 Chapter 9 Major Positioning Control MEMO ...
Page 594: ...9 134 Chapter 9 Major Positioning Control MEMO ...
Page 624: ...10 30 Chapter 10 High Level Positioning Control MEMO ...
Page 656: ...11 32 Chapter 11 Manual Control MEMO ...
Page 690: ...12 34 Chapter 12 Expansion Control MEMO ...
Page 798: ...13 108 Chapter 13 Control Sub Functions MEMO ...
Page 866: ...14 68 Chapter 14 Common Functions MEMO ...
Page 884: ...15 18 Chapter 15 Dedicated Instructions MEMO ...
Page 899: ...16 15 Chapter 16 Troubleshooting MEMO ...
Page 1036: ...Appendix 88 Appendices MEMO ...
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