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FX3U/FX3UC Series PLC User's Manual - Positioning Control Edition Built-in Positioning Function 4 Before Programming 4.5 Setting of Various Items on PLC Side A In the following program, the zero return instruction with DOG search function (DSZR), variable speed pulse output (PLSV) instruction, and interrupt positioning (DVIT) instruction are used for the pulse output destination (Y000) under the conditions shown in the following table. 1) Set conditions Description of setting Items related to speed 30000Hz D8344, D8343 (32-bit) K30000 Bias speed 10Hz D8342 K10 Acceleration time 200ms D8348 K200 Deceleration time 200ms D8349 K200 Zero return speed 5000Hz D8347, D8346 (32-bit) K5000 Creep speed 500Hz D8345 K500 Items specially needed for DSZR instruction (zero return instruction with DOG search function) and ZRN instruction (zero return instruction) Zero return direction Reverse rotation direction M8342 M8341 ON Output to Y010 M8464 ON D8464 H0010 CLEAR signal output CLEAR signal device change*6 OFF Logic of near-point signal Sets the positive logic (turning on the input will M8345 turn on the near-point signal). OFF Logic of zero-phase signal Sets the positive logic (turning on the input will M8346 turn on the zero-phase signal). OFF Items specially needed for variable speed pulse output (PLSV) instruction Acceleration/deceleration Operation If X012 is turned on, the variable speed pulse output (PLSV) instruction will be activated to M8338 accelerate or decelerate the operation. ON: If X012 = ON Items specially needed for interrupt positioning (DVIT) instruction Interrupt input signal device change Sets X007 for interrupt inputs. M8336 Interrupt positioning (DVIT) instruction will not be used for the pulse output destinations D8336 Y001, Y002, and Y003. ON User interrupt input command device Do not use. M8460 - Logic of interrupt input signal Sets the negative logic (turning off the input will turn on the interruption signal). M8347 ON HFFF7 Forward limit, reverse limit, and immediate stop of pulse output Forward limit If X010 is turned off (if the NC contact is turned on), the limit switch will be activated. M8343 ON: If X010 = OFF Reverse limit If X011 is turned off (if the NC contact is turned on), the limit switch will be activated. M8344 ON: If X011 = OFF Immediate stop of pulse output Do not use. M8349 - B - 49 Apx. Example Connection Maximum speed B Built-in Positioning Function Setting item Related Setting value device or condition Common Items Example of program:
