Frequently Asked Questions

FAQ Category: LAC Controller

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What extra software do I need to run and program my controller?

None. All controllers can be programmed with nothing more sophisticated than a 486PC and an RS232 cable. Programming is done with a simple form of a machine code using two-letter mnemonics in a text editor such as Notepad and then "cut and pasted" into Hyperterminal.

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On the LAC1 or LAC25, what are some ballpark PID's for my actuator?

The following table gives ballpark PID's. These are starting values only, they may need to be adjusted for different load values or actuator orientations. Values should work with both LAC25 and LAC1 controllers. For 0.5µ and 0.1µ, reduce all values by a factor of 5 (e.g. SG25 becomes SG5).
Linear Encoder Linear Actuator Proportional (SG) Integral (SI) Derivative (SD) Integral Limit (IL)
CAL12-010-51 10 45 500 8000
CAL36-015-65 30 250 1500 8000
CAL36-015-85 50 100 800 8000
CAL36-025-55 50 200 2000 8000
CAL36-025-51 50 500 3000 8000
CAL36-025-65 50 500 3000 8000
CAL36-050-55 50 200 1000 8000
CAL75-015-71 40 100 1000 8000
CAL75-025-71 50 100 800 8000
CAL75-050-55 50 100 1500 8000
CAL75-050-71 40 100 2000 8000
CAL75-050-85 70 270 1500 8000
LCA16-010-65 50 100 800 8000
LCA25-010-55 50 100 800 8000
LCA25-010-65 50 100 800 8000
LCA25-010-75 50 100 800 8000
LCA25-010-85 25 100 400 8000
LCA25-025-65 6 40 40 8000
LCA25-025-85 25 100 800 8000
LCS30-010-51 50 100 800 8000
LCA50-025-75 50 100 800 8000
LCA50-050-85 25 100 800 8000
LAL15-015-55 90 300 1500 8000
LAL20-010-55 50 100 800 8000
LAL20-025-55 35 120 1200 8000
LAL55-050-55 50 100 1500 8000
LAL55-100-55 50 100 1500 8000
LAL95-015-85 25 50 400 8000
LAL300-030-75 25 100 400 8000
LAL500-050-85 25 100 400 8000
GRP35-030-55 30 70 500 8000
GRP50-030-75 25 50 400 8000
LXY15-15-7 25 230 500 10000
LXY25-25-85 30 70 1000 8000
Linear Encoder Linear/Rotary Actuator Proportional (SG) Integral (SI) Derivative (SD) Integral Limit (IL)
Linear/Rotary
LAR15-015-55 50 200 500 8000/3000
LAR20-015-55 50 350 800 10000/3000
LAR31-030-55VS 50 200 2000 7000/5000
LAR35-025-55 70 250 1800 10000/5000
LAR35-050-55 70 200 2500 10000/5000
LAR55-050-55 70 100 3000 10000/5000
LAR55-050-75 70 100 3000 10000/5000
LAR55-100-55 70 100 3000 10000/5000
LAR55-100-75 70 100 3000 10000/5000
LAR95-015-75 70 250 2500 10000/5000
LAR95-050-75 40 150 3000 10000/5000
LAR300-050-85 45 30 1000 10000/4000
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How do I wire the I/O for the LAC-1 or LAC-25?

LAC1 I/O Wiring
LAC1 I/O wiring diagram
PLC/LAC25 I/O Wiring
PLC to LAC25 wiring diagram


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What are the pin-outs for the LAC-1?

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What are the pin-outs for the LAC-25?

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What are the pin-outs for the LAC-26?

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What are the pin-outs for the LAA-5?

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I can't communicate with the controller.

  1. Check Window's Hyperterminal setting is correct. (ex. 9600,8,1,1)
  2. Check assigned comport number is correct.
  3. Make sure the phone jack is connected to RS-232 port of controller.
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