Anaheim DPJ72LC4 To Set the Jog Rates, To Set the Maximum Arc Feedrate, Setting Machine Zero

Section 3 Initial Setup 31

3.Run the program and notice if the motor loses steps. If so, increase the Direction Change Delay. Otherwise decrease the number.

4.Repeat the above process until you reach a reasonable delay time that eliminates any motor slippage. Note that this number is typically between 0.05 and 0.3 seconds. If you do not see any slippage at a delay of 0 seconds, it is recommended you enter at least 0.05 seconds.

5.Repeat the above process for all axes.

4To Set the Jog Rates

1.Choose Feedrate/Ramping from the Setup Menu.

2.Fill in both the Slow Jog Rate and the Fast Jog Rate text boxes. Choose a Slow Jog Rate that will allow fine positioning of the machine tool (typically about 2-5 in/min). Choose a Fast Jog Rate that will move the tool quickly, yet allow you to remain in complete control without creating a dangerous situation. Remember that the CNC machine cannot jog any faster than the maximum feedrate for each axis.

4To Set the Maximum Arc Feedrate

Due to the computations involved during circular interpolations, an arc cannot be executed as fast as a line. For this reason, there is a user-settable limitation for the maximum arc feedrate.

3.Write a G-Code program that cuts a circle at the maximum feedrate. For example, if the maximum feedrate were 25:

G00 X2 Y2

G02 X2 Y2 I1 J1 F25

4.Run the program and notice if either the X or Y motors lose steps. If so, decrease the feedrate in the program.

5.Repeat the above process until neither motor loses any steps. When you are done, enter the final feedrate from the program into the Maximum Arc Feedrate text box. If there was no loss of steps when the Maximum Feedrate was used, enter the Maximum Feedrate into the text box.

Setting Machine Zero

Setting Machine Zero using home switches not only sets up the machine tool envelope, but also allows you to re-position a tool to a precise physical location even after the controller has been turned off or has lost power.

Setting Machine Zero without home switches won’t help you reposition a tool after losing power, but it will set the machine tool envelope. This is very useful because the software will always ramp down the machine to a complete stop at the defined limits of the machine tool envelope.