FX1N PLC & MR-J2S SERVO

[Steve Cheung]

Hi All, Anyone knows if FX1N PLC with its Positioning function can be use to apply the positioning control as FX2N-1PG with FX2N PLC? Thanks

[sid]

The following Instructions you can use to achieve functions like Fx2N-1PG when using FX-1N 1)PLSY --> This instruction outputs a specified no. of pulses at specified frequency to Y0 or Y1. 2)PLSR-->outputs a specified no. of pulses at specified frequency to Y0 or Y1 with ramp function. 3)ZRN--> Home position return 4)PLSV-->Variable speed can be achieved using these instructions 5)DRVI-->Single speed positioning(incremental) 6)DRVA-->Single speed positioning(Absolute positioning) 7)ABS--> Used to read absolute position information from absolute positioning servo. For using ABS refer to wiring diagram given in FX Programming or MR Servo manuals. When using ZRN,DRVI or DRVA you can specify maximmum speed and accelerartion/Deceleration using D8146 and D8148 Respectively. But you always have to deal with pulses and you dont have units based on length and angles.

[Steve Cheung]

Hi Sid, Thanks for your reply. So, it should be possible to using FX1N to send command by pulse to turn the servo move for instance 30 degree? Best regards Steve

[sid]

Yes, you can definetly use FX1N to move the servo to your desired degress. But you should have to do more calculations when dealing with pulses. Be careful to use only Transistor output models(those labeled as MT) and only two high speed outputs(y0 & Y1) you can use for pulse output to servo.