Baumer EAM ST Series Manual - Halaman 9

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Electronic gear function

4.4.5
The electronic gear function divides the position value by the gear factor. Therefore it transforms the position value into
the view of the application:
The gear factor (i) is defined as followed:
There are three objects that should be configured to use the electronic gear function.
0x2001-1 Enable
Set this object to the value "2" to enable the electronic gear function, while the value "1" disable it.
0x2001-2 Gear Value 1
This Object defines the numerator of the gear factor.
The range of this integer value is 1...32767.
0x2001-3 Gear Value 2
This Object defines the denominator of the gear factor.
The range of this integer value is 1...32767.
Figure 4: Example configuration of gear values
discrete gear with number of teeth
obj 2001h-2h
GearValue1
eg. 17 teeth
obj 2001h-3h
GearValue2
Encoder
eg. 8 teeth
Limitations
A useful gear ratio is greater than 0.125, while a gear ratio smaller than 1 may result in higher signal noise.
The maximum encoder turns in unpowered operation must be smaller than 2
The electronic gear function is useful for multiturn encoders. In case of singleturn encoders, the position value gets lost
after a power cycle.
Baumer_EAM580_360_CANopen_MA_EN_Rev0003.0000h_Index0004.docx
06.08.2018
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Example
Application
1
2
Motor
6.25
gear ratio i =
1
29
(536'870'912) turns.
9/28
Example
gear box
Gear
i = 6.25
Application
obj 2001h-2h
GearValue1
eg. 625
625
=
100
obj 2001h-3h
GearValue2
eg. 100
Baumer Electric AG
Frauenfeld, Switzerland