LX-2
June 02, 2026

LX-2

LX-2 (YASNAC LX2) is an early-generation compact CNC numerical control system manufactured by Yaskawa Electric, developed for lathe & small machining center numerical control, widely used for old-model bench lathes, small automatic turning equipment, matching Yaskawa CPCR-MR series PWM servo drive units. It belongs to classic Yasnac LX product lineup, succeeding LX1 model; original production discontinued, mainly supplied as refurbished & tested spare parts for old equipment maintenance replacement.

Description

1. Product Overview

LX-2 (YASNAC LX2) is an early-generation compact CNC numerical control system manufactured by Yaskawa Electric, developed for lathe & small machining center numerical control, widely used for old-model bench lathes, small automatic turning equipment, matching Yaskawa CPCR-MR series PWM servo drive units. It belongs to classic Yasnac LX product lineup, succeeding LX1 model; original production discontinued, mainly supplied as refurbished & tested spare parts for old equipment maintenance replacement.

2. Core Electrical Specifications

  • Main input power: AC200V single-phase industrial power supply

  • Control circuit working voltage: DC24V for internal logic board & I/O modules

  • Axis control capacity: Standard configuration supports 2-axis (X/Z) closed-loop servo positioning; optional expansion for 3-axis linkage control

  • Servo interface: Dedicated signal terminals for connecting Yaskawa transistor-type PWM servo drivers, incremental encoder feedback input for position closed-loop control

  • Digital I/O: Built-in 32-point general-purpose input/output terminal, supporting spindle relay, coolant pump, door safety switch, travel limit signal access

  • Internal protective design: Overvoltage, overcurrent, power phase loss and servo fault detection with corresponding CNC alarm code display

3. Mechanical & Installation Details

  • Integrated panel-mounted structure, embedded installation on machine tool operation cabinet; overall control panel with display screen + membrane operation keypad

  • Main control unit dimension: approx W320 × H240 × D180mm; separate servo drive unit is DIN rail mounting inside electric cabinet

  • IP20 protection grade, natural convection cooling, only indoor enclosed cabinet installation allowed

4. Compatible Matching Components

  • Matched servo driver: CPCR-MR series Yaskawa PWM servo amplifier (core supporting part of LX2 system)

  • Supporting accessories: Yasnac dedicated spindle inverter, external I/O terminal block, original operation membrane panel, encoder cable set

  • Interchange note: Partial internal PCB can be cross-replaced with LX1 version after parameter modification

5. Operating Environmental Requirements

  • Continuous operating temperature: 0℃ ~ +45℃; storage ambient temperature: -20℃ ~ +70℃

  • Working humidity: 10%~85%RH non-condensation; avoid oil mist, cutting fluid vapor, corrosive gas and strong vibration near lathe processing area

6. Standard Replacement & Maintenance Steps

  1. Cut off total AC input power of machine tool, wait 10+ minutes for servo drive capacitor full discharge before disassembly work.

  2. Mark all power cables, servo signal lines and limit I/O wiring on LX2 control cabinet one by one then disconnect all connectors.

  3. Remove fixing screws of old LX-2 controller, install replacement unit into original embedded position and fix tightly.

  4. Restore all wiring strictly following pre-marked labels; confirm no short circuit of power terminals before power-on test.

  5. Power on equipment, execute system initialization, set basic CNC parameters, perform single-axis jog test and automatic program trial run to verify no abnormal alarm.

7. Common Fault & Troubleshooting

  1. CNC powers on with servo ready error, axes unable to move: Inspect DC24V control power or damaged connection between LX2 mainboard and CPCR-MR servo driver.

  2. Axis overshoot / position deviation alarm during cutting: Check loose encoder wiring or aging internal servo feedback circuit of LX-2 control board.

  3. Spindle or auxiliary I/O components no response: Measure input signal voltage of corresponding I/O terminal on LX-2 main control unit.

8. Safety Regulations

Hot plugging power and servo signal cables under powered state is strictly prohibited, surge voltage will burn LX-2 main control PCB and matched servo motors permanently. Only professional CNC maintenance technicians can disassemble the internal circuit of LX-2 controller.


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