Specialized Concentrated Focused
Motor Type：
TYPE SGMSH-1 0 A C A 2 1
(The 4th character)
The 4th character:
serial encoder spec.
Sign
Spec.
Remark
2
17-bit absolute
Standard
C
17-bit incremental Standard
Fig. 5-2 Name plate of servo motor-encoder resolution
For instance: (an example of YASKAWA) the screw pitch of a certain type machine is 5mm, with
17 bit encoder resolution, “0.0001mm/p” pulse equivalent and “1:1” deceleration ratio.
Electronic gear ratio PN 202 217 1 131072 8192
PN 203 5 / 0.0001 5 / 0.0001 3125
Pulse Equivalent of Rotary Axis
The pulse equivalent of rotary axis refers to the rotation degree of the axis clamping the workpiece
per pulse. The rotary degree of workpiece per revolution of motor is equal to screw pitch.
Stepping motor
Pulse equivalent
360
360
Subdivision Mechanical deceleration ratio
Stepping angle
Servo motor
Electronic
gear
ratio
B
Encoder
resolution Pulse equivalent
Mechanical
deceleration ratio
A
360
5.2. Setup of Machine Stroke
Machine stroke refers to the valid motion stroke of a machine tool. In the parameter
“MachineStrok”, the valid motion range of the three axes (X/Y/Z) can be set. Because this system
regards the machine tool dimensions as the reference for soft limit, their values should be consistent
with the actual dimensions of the machine tool. Otherwise, limit overrun or axis crash may occur.
If file machining range exceeds the machine tool’s dimensions, there will be a message box
prompting machining is out of range, as shown in Fig. 5-3. You can press [OK] or [ESC] to return to the
main page, and then manually move the machine tool to release limit.
Machine Tool Debugging「25」
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