Mitsubishi Electric MELSERVO-J4 Series Instruction Manual page 324

7. PARAMETERS
No./ Setting
symbol/name digit
PA06 Set an electronic gear numerator. (Refer to section 7.3.1.)
*CMX To enable the parameter values in the positioning mode, cycle the power after setting.
Electronic To enable the parameter, select "Electronic gear (0 _ _ _)", "J3 electronic gear setting
gear value compatibility mode (2 _ _ _)", or "J2S electronic gear setting value compatibility
numerator mode (3 _ _ _)" of "Electronic gear selection" in [Pr. PA21]. For MR-J4-03A6-RJ servo
(command amplifiers, "J3 electronic gear setting value compatibility mode (2 _ _ _)" and "J2S
pulse electronic gear setting value compatibility mode (3 _ _ _)" cannot be selected.
multiplication
Set the electronic gear within the following range. Setting out of the range will trigger
numerator)
[AL. 37 Parameter error].
Setting range: 1 to 16777215
PA06 Set the number of gear teeth on machine side. (Refer to section 7.3.2.)
*CMX To enable the parameter values in the positioning mode, cycle the power after setting.
Number of Set the electronic gear within the following range.
gear teeth on
machine side
(1) 1 ≤ CMX ≤ 16384, 1 ≤ CDV ≤ 16384
(2)
9999
(3) CDV × STN ≤ 32767 (STN: Number of stations per rotation [Pr. PT28])
(4) CMX × CDV ≤ 100000
Setting out of the range will trigger [AL. 37 Parameter error].
When a small value is set to the electronic gear ratio with the manual operation mode,
the servo motor may not drive at the set servo motor speed.
Travel distance of 1 station = Pt (servo motor resolution) ×
Setting range: 1 to 16777215
PA07 Set an electronic gear denominator. (Refer to section 7.3.1.)
*CDV To enable the parameter values in the positioning mode, cycle the power after setting.
Electronic To enable the parameter, select "Electronic gear (0 _ _ _)", "J3 electronic gear setting
gear value compatibility mode (2 _ _ _)", or "J2S electronic gear setting value compatibility
denominator mode (3 _ _ _)" of "Electronic gear selection" in [Pr. PA21]. For MR-J4-03A6-RJ servo
(command amplifiers, "J3 electronic gear setting value compatibility mode (2 _ _ _)" and "J2S
pulse electronic gear setting value compatibility mode (3 _ _ _)" cannot be selected.
multiplication
Set the electronic gear within the range of [Pr. PA06].
denominator)
Setting out of the range will trigger [AL. 37 Parameter error].
Setting range: 1 to 16777215
PA07 Set the number of gear teeth on servo motor side. (Refer to section 7.3.2.)
*CDV To enable the parameter values in the positioning mode, cycle the power after setting.
Number of Set the electronic gear within the range of [Pr. PA06].
gear teeth on Setting out of the range will trigger [AL. 37 Parameter error].
servo motor
side Setting range: 1 to 16777215
Pr. PA21
0 _ _ _
2 _ _ _
3 _ _ _
1 CMX
≤ ≤ 9999
CDV
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Function
Electronic gear setting range
1/865 < CMX/CDV < 271471
1/13825 < CMX/CDV < 16967
1/27649 < CMX/CDV < 8484
1 CMX
×
STN CDV
7 - 19
Control mode
Initial
value
[unit]
1
1
1
1