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Kinco JD Series - Appendix 6:Conversion between Engineering Unit and Internal Unit of Common Objects

Kinco JD Series
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Kinco JD 伺服系列使用手册
138
Kinco JD Series Servo User Manual
5.Then click the Write, so the parameters are downloaded to driver. After that do not forget to
click Save Parameter, then the parameters are saved in driver.
Appendix 6Conversion between engineering unit and internal unit of
common objects.
There are engineering unit and internal unit for some internal objects in JD servo.When driver is controlled by
communication,some objects use internal unit,therefore it needs to convert the unit.For example,the
engineering unit for speed is RPM,and the internal unit is dec.Their conversion formular is
1RPM=2730dec(Resolution of encoder is 10000).Suppose to set speed as 10 RPM,then you need to send
data 27300dec to the driver when using communication control.
Following table is the list of common conversion unit.
Parameter Name
Engineerin
g Unit
Internal
Unit
Conversion Fomular
Velocity
RPM
dec
dec=[(RPM*512*Encoder_resolution)/1875]
Acceleration
r/s*s
dec
dec=[(RPS/S*65536*
Encoder_resolution)/4000000]
Kpp
hz
dec
1 hz= 100dec
K_Velocity_FF
%
dec
100%=256dec
Notch_N
hz
dec
Hz=dec*45+100
Speed_Fb_N
hz
dec
Hz=dec*20+100
Current
A
dec
1 Arms=1.414 Ap=105dec

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