Technical information

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230V FX Series Positioning Drive Reference Manual
The Time Base Override functions only to override the internal real-time base. If the FX drive
is equipped with a synchronized module and if another external time base (encoder or analog)
is selected, in a program, the time base override function will not have any effect.
Limits
The Limits screen allows you to set the maximum and minimum values the drive will accept,
and protect the FX drive and machine from misuse.
Figure 67: Limits Screen
Maximum Allowable Velocity
This parameter acts as a velocity entry limit. The drive will not accept a velocity entry in the
Jog, Home, or the Index screen that exceeds the number you enter here. For example, if the
top speed of your drive is 3000 RPM and the maximum input speed of the mechanical device
connected to the motor is 1750 RPM, the value in this field should be set at 1750 RPM or less.
If you try to enter a velocity in an Index, Home or Jog greater than the value entered here,
PCX will display an “Error” message, beep, and set the velocity to the value you entered here.
Minimum Accel and Decel Times
Used to limit the shortest time period that can be programmed for acceleration to maximum
motor speed and from maximum motor speed to zero velocity. Too short an entry for accel or