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Magnescale LY71 Quick Reference Manual
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Magnescale LY71 Quick Reference Manual

Comparator function
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LY71 & LZ71-KR
Comparator function
Quick reference manual
1. First of all
By combining LY71 with LZ71-KR (comparator unit), open
collector output and relay output of up to 4 levels are possible
when the comparator function is selected, and 1 level when the
positioning function is selected. It supports both length display
and angle display.
This manual mainly describes how to operate the comparator
function. For detailed information on LZ71-KR, refer to the
instruction manual.
2. Judgment display and judgment output
Setting value and judgement
Judges the lower and upper limits for the set value
Setting
Setting
value 1
value 2
Measuring value
Judgment
Judg.
1
Judg.
2
Small
Size of compared value
Judgment
status display (example)
4
The upper display shows the current value, and the middle and lower
rows display the compare setting value. Judgment against the set
value is displayed by number and NG.
Judgment display
(
1
to
5
,
NG
)
The corresponding
lamp lights up
(Condition: Setting value 3 ≤ Measured value < Setting value 4)
(Example of 4-level setting)
Setting
Setting
value 3
value 4
Judg.
3
Judg.
4
Judg.
5
Large
Current value
Lamp indicating the
upper limit of the
set value
Setting value
Lamp indicating the
lower limit of the
set value
Setting value
LY71 with LX71-KR comparator function
Table of contents:
1. First of all
2. Judgment display and judgment output
3. Display of comparator setting value
and judgment result
4. Installation / connection
4-1. Appearance
4-2. Insertion of expansion unit
4-3. I/O signal connection
5. Comparator function settings
(in advanced settings)
6. Comparator setting operation
7. Functional comparison between LZ71-KR
and old model LZ51-K/R
Judgement output
Judgment output timing chart
Setting
value 1
Output 0
Judg.
1
2
Output 1
Judg.
Output 2
Judg.
3
Output 3
4
Judg.
Output 4
Judg.
5
Judg.
Judg.
1
Judgment result is open collector output and relay output
Display unit
+V
Ver. 1 (2021.2)
LY71
LZ71-KR
(Example of
4-level setting)
Setting
Setting
value 2 Setting
value 4
value 3
Judg.
Judg.
Judg.
2
3
4
Output circuit
(Output 0 to output 4)
Open collector output
External output
Relay output
CS&S
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
5
1/9

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Summary of Contents for Magnescale LY71

  • Page 1 Table of contents: 1. First of all 1. First of all By combining LY71 with LZ71-KR (comparator unit), open 2. Judgment display and judgment output 3. Display of comparator setting value collector output and relay output of up to 4 levels are possible...
  • Page 2 Lower limit value lamp Setting value 1 Setting value 1 Setting value 1 Light Setting value 1 ≤ Measured value < Setting value 2 Setting value 2 ≤ Measured value Measured value < Setting value 1 LY71 with LX71-KR comparator function...
  • Page 3 Setting value 3 Setting value 3 Setting value 2 Setting value 2 ≤ Measured value < Setting value 3 Setting value 3 ≤ Measured value < Setting value 4 Setting value 4 ≤ Measured value LY71 with LX71-KR comparator function...

  • Page 4: Installation & Connection

    Pin 1 4-2. Insertion of expansion unit ① Remove the blindfold on the back of the LY71. (Fixed with two screws) There are two slots, but it works regardless of which one you insert. ② When inserting, align it with the board guide groove.
  • Page 5 Connect the shielded wire on the expansion unit side to either of the remove the screwdriver. two screws that secure the expansion unit. Of course, the LY71 body must be firmly grounded. If the connector case used on the device side is of the type that contacts the FG, connect the shielded wire to the connector case.

  • Page 6: Input Circuit

    It takes about 3ms at the shortest from turning on the photocoupler to internal operation. Timing chart input input High Input signal (CMP0 to CMP3) 70ms or more 10ms or more Keep the input signal low for 10ms or more. Please allow at least 70ms when re-entering. LY71 with LX71-KR comparator function...
  • Page 7 5. Comparator function settings (in advanced settings) If you connect the comparator unit LZ71-KR to LY71, you can set the comparator conditions in the LY71 advanced settings. Press the setup key in the normal count display Advanced settings of LY71 main unit Press the key several times to set the comparator function ◆Set the output mode of the data...
  • Page 8 Operation to input the setting value as the difference value A small setting value has already been entered, and an additional difference value is entered. Axis selection key Add difference value key Difference value ENT key Difference value * ABS lamp blinks LY71 with LX71-KR comparator function...
  • Page 9 Holds the comparator result when an external External latch (Latch data or internal count data) latch is input With function (depending on the initial setting) Positioning function Output 1 level Set selection: Up to 16 sets LY71 with LX71-KR comparator function...

This manual is also suitable for:

Lz71-kr