WEIHONG 200 Series Manual page 14

Electronic Gear Ratio
It refers to the ratio that the servo enlarges or shrinks the received pulse
frequency.
It consists of parameter Numerator of Electronic Gear Ratio and
Denominator of Electronic Gear Ratio.
B represents its numerator, while A represents its denominator.
If it is greater than 1, the servo enlarges the received pulse frequency; if it is
less than 1, the servo shrinks the received pulse frequency.
It setting should match with the value of drive parameter Electronic Gear
Ratio.
It is 1:1 by default.
F stands for encoder resolution; p stands for pulse equivalent; d stands for
pitch; m/n stands for mechanical reducer ratio.
2.3.2 Set Commissioning Parameters for Non-bus Control System
For NK280B, before setting commissioning parameters for non-bus control system,
ensure the following:
• Parameter Control System Type is set to 0.
• Parameter Encoder Type is set to 0.
To set commissioning parameters for non-bus control system, do the following:
1. To enter into Machine Param interface, press
2. To check manufacturer's parameters, press F2, and input manufacturer
password.
3. Press F2, find and set the following axis parameters according to the actual
situation:
Pulse Equivalent
It refers to the moving distance of screw or rotation degree of the rotary axis
per pulse sent by the system, the minimum available distance controlled by the
system as well.
Smaller value gets higher machining precision and surface quality; while larger
value gets faster maximum feedrate.
TravelLimits-Positive / TravelLimits-Negative
The movement range of each axis in X-axis, Y-axis and Z-axis direction.
The system will carry out soft limit in terms of this range in order to protect the
machine tool.
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