BECKHOFF AX2000 - Manual (Page 5)

If you want to use the position control of the servo amplifier, then you must enter the specific
parameters for your drive:
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Axis type :
- Click on the POSITION button
- Click on the POSITION DATA button
- Select the axis type (linear or rotary)
Resolution :
- Enter the denominator and numerator for the resolution. Here you adjust the path
traversed by the load in positioning units (length unit for linear axes, or °mech.
for rotary axes) to match the number of turns of the motor.
Only integer entries are permitted.
Example 1: Ratio = 3.333 mm / turn
=> resolution = 10000/3 µm/turn (all other path entries in µm)
or
=> resolution = 10/3 mm/turn (all other path entries in mm)
Example 2: Ratio = 180 °mech./turn
=> resolution = 180/1 °mech./turn (all other path entries in °mech)
vmax :
- Enter the maximum traversing speed for the load that results from the resolution
at the rated speed of the motor. The dimensional unit is derived from the
resolution (°mech./sec or length units/sec).
Example 1: resolution = 10000/3 µm/turn, n
nom
= 3000 turns/min
=> vmax = resolution * n
nom
= 10000/3 * 3000 µm/min = 10 000 000 µm/min
or
=> vmax = resolution * n
nom
= 10/3 * 3000 mm/min = 10 000 mm/min
Example 2: resolution = 180 °mech/turn, n
nom
= 3000 turns/min
=> vmax = resolution * n
nom
= 180 * 3000 °mech/min = 9000 °mech/s
t_acc/dec_min :
- Enter the time in ms that the drive requires, with the
mechanically permissible maximum acceleration,
to accelerate from zero speed to vmax.
InPosition :
- Enter the window for InPosition. This value is used for the InPosition message.
The dimensional unit is derived from the resolution
(°mech. or length unit).
Typical value : e.g. approx. resolution * 1/100 turn
- Clicken on APPLY and then on OK
- Answer the query “Save to EEPROM/Reset” with NO
(the data are in the RAM and will be permanently stored later)
max. following error :
- You now see the screen page POSITION
- Enter the window for the following error. This value is used for the message
FOLLOWING ERROR. The dimensional unit is derived from the resolution
(°mech. or length unit).
Typical value : e.g. approx. resolution * 1/10 turn
Save parameters :
- Click on the button
- Answer the query RESET AMPLIFIER with YES
Quick Start 5
BECKHOFF
06.00
Parameterization