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Adjustment of MR duty
●In case of replacing the main PCB, SWM unit and MR encoder unit, be sure to make adjustments.
●In case of replacing the main PCB, be sure to perform [READING AND REWRITING OF EEPROM
DATA.] then [3.WRITING THE FIXED VALUES.]
How to adjust
① Make sure that the electric current and voltage of the connected rated voltage power supply are set to the
set values, which are instructed on the PC screen. Then, turn the rated voltage power supply ON.
② Select "Adustment for Electrical Device" in the menu of the AF-S 18-135 inspection program.
③ The confirmation screen for writing the fixed values in EEPROM appears. Select the appropriate item.
④ Following the instruction on the screen, rotate the focus ring automatic turns in the direction from the
infinity to the close distance position. Make sure that the waveform on the oscilloscope has duty 50% .
C H 1 = 5 V
C H 2 = 5 V
D C 1 0 : 1
⑤ Following the instruction on the screen, rotate the focus ring automatic turns in the direction from the close
distance to the infinity position. Make sure that the waveform on the oscilloscope has duty 50% .
Note ：In case the waveform from infinity to close distance position or vice versa does not have duty
50%, recheck based on "GMR output check" on Page A19.
Standard Ｈ：Ｌ＝ 100：150 ～ 150：100（50％ ±10.0％）
D C 1 0 : 1
- Ａ32 ･ AF-S DX 18-135/3.5-5.6G -
● Setting of oscilloscope
5 m s / d i v
NORM 200KS/s
V/Div（CH1）
V/Div（CH2）
Coupling
Time/Div
Trigger Mode
Trigger Coupling
Trigger Source
Trigger Position
Trigger Type
Trigger Level
JAA79651-R.3695.A
：5V
：5V
：DC
：1 m Sec
：NORMAL
：DC
：CH １
：- 4 div
：EDGE
：2.5 V
Ｈ
Ｌ
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