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Encoder resolution: The number of pulses required to make the servo motor axis
rotate by one turn.
Parameters in non-bus systems
Pulse equivalent
o The straight distance travelled by the lead screw or the angle turned by the
rotary axis when the system sends one pulse. It is the smallest distance
control unit. The smaller it is, the higher the machining accuracy and
workpiece surface quality. The bigger it is, the faster the machine maximum
feed rate.
o Calculate the pulse equivalent based on the drive electronic gear ratio and
set Pulse Equivalent.
Electronic gear ratio
o Determines how much the servo drive enlarges or shrinks the pulse
frequency received. The servo drive enlarges the received pulse frequency if
it is larger than 1 and shrinks the received pulse frequency if it is less than 1.
o Calculate the electronic gear ratio based on the pulse equivalent value.
3.8 Check Axis Direction
Determine the axis directions with the right hand rule and set the axis direction
parameters.
Taking the X axis as an example, follow the steps below to check the X axis direction:
1. Determine the X-axis positive direction based on the right hand rule.
2. In the software, click the X+/X- button in the machine control area to control the X
axis to travel a certain distance.
3. Check to see if the axis movement direction is consistent with that determined by
the right hand rule.
o Yes: The axis direction setting is correct.
o No: In the menu bar, click System > System Parameters. Set Axis
Direction(X) to the opposite of its current value.
3.9 Set Workbench Travel Limits
After checking the axis movement direction and setting the mechanical origin, you need to
set the axis travel limits based on the machine size to achieve soft limit functions.
Follow the steps below to set the workbench travel limits:
1. In the menu bar, click System > System Parameters.
2. Set the axis Enable Soft Limit Protection to Yes.
3. Set the axis Upper Limit of Soft Limit and Lower Limit of Soft Limit based on
actual situation.
3.10 Set the Screw Error Compensation
It is used to compensate the screw error and improve the machining precision when errors
exist in the machine tool and the desired precision cannot be reached.
Before using screw error compensation, click System > System Parameters in the menu
bar. Select Machine Basic Param > Error Compensation in the left list, set Lead Screw
Compensation Mode to a non-0 value:
0: no compensation
1: backlash compensation
2: backlash and unidirectional compensation: Operation methods are the same as
those for bidirectional compensation.
SHANGHAI WEIHONG ELECTRONIC TECHNOLOGY CO., LTD
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上海维宏电子科技股份有限公司
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