Omron R88M-K - Connecting with Host Controllers

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8. Connecting with Host Controllers
The SS2 series is connected to the host controller of pulse output type, such as the Position Control Unit (for CJ series)
CJ1W-NC□□3.
When the SS2 series is replaced with the G5 series, there will be a difference in the encoder resolution of the motor; therefore, if it
is made to operate in the G5 series after replacement, positioning will be carried out differently.
As shown below, use the electronic gear functions to correct the encoder resolution.
The following settings will remove the influence on the host controller side and allow you to use the settings and programs of the
host controller without having to change them.
SS2 series
G5 series
Parameter
No.
[hex]
Parameter name
Default
setting
[dec]
Parameter
No.
[dec]
Parameter name
Default
setting
[dec]
Pn46
Electronic Gear Ratio Numerator 1
10,000
Pn008
Electronic Gear Integer Setting
10,000
Pn009
Electronic Gear Ratio Numerator 1
0
Pn47
Electronic Gear Ratio Numerator 2
10,000
Pn500
Electronic Gear Ratio Numerator 2
0
Pn4A
Electronic Gear Ratio Numerator
Exponent
0
-
-
-
Pn4B
Electronic Gear Ratio Denominator
2,500
Pn010
Electronic Gear Ratio Denominator
10,000
■ When electronic gear functions (Pn46/Pn47/Pn4A/Pn4B) of SS2 series are default
settings
The default setting of the SS2 series is 2,500 input pulses for one motor rotation.
Set 2,500 pulses to Electronic Gear Integer Setting (Pn008) of the G5 series.
■ When Electronic Gear Ratio Numerator 1/2 (Pn46/Pn47) of SS2 series is 10,000 and
when Electronic Gear Ratio Numerator Exponent (Pn4A) is 0
Set the value that is set in Electronic Gear Ratio Denominator (Pn4B) of SS2 series, to Electronic Gear Integer Setting
(Pn008) of G5 series.
● SS2 series electronic gear functions
When Electronic Gear Ratio Numerator 1/2 (Pn46/Pn47) of SS2 series is 10,000 and when Electronic Gear Ratio
Numerator Exponent (Pn4A) is 0, the encoder resolution of the motor of the SS2 series is set.
Therefore, the motor is rotated once by the input pulse setting of Electronic Gear Ratio Denominator (Pn4B).
● G5 series electronic gear functions
The motor is rotated once by the input pulse setting of Electronic Gear Integer Setting (Pn008).
■ When Electronic Gear Ratio Numerator 1/2 (Pn46/Pn47) of SS2 series is ≠ 10,000 or
when Electronic Gear Ratio Numerator Exponent (Pn4A) is ≠ 0
When Electronic Gear Ratio Numerator 1/2 (Pn46/Pn47) of SS2 series is ≠ 10,000 or when Electronic Gear Ratio
Numerator Exponent (Pn4A) is ≠ 0, set the values in which a difference in the encoder resolution of the motor is reflected.
Set the following values to the electronic gear functions (Pn008/Pn009/Pn500/Pn010) of the G5 series.
If the following calculation result has exceeded the parameter setting range, reduce fractions to a common denominator to
convert the value into a smaller one before setting it.
● Electronic Gear Integer Setting (Pn008) = 0
● Electronic Gear Ratio Numerator 1/2 (Pn009/Pn500)
= Electronic Gear Ratio Numerator 1/2 (Pn46/Pn47) of SS2 series × 2
Electronic Gear Ratio Numerator Exponent (Pn4A) of SS2 series
× 1,048,576
● Electronic Gear Ratio Denominator (Pn010) = Electronic Gear Ratio Denominator (Pn4B) of SS2 series x 10,000