20
3 Installation onto the Machine Main Unit
No. 99MBE048B
3.5.2 Adjusting the Signals
Adjusting the main signals
1
Clip the two probes and GND probe of the oscilloscope to Vref and GND on the I/F Box, respectively.
2
Adjust the horizontal/vertical positioning knob so that the blip on the oscilloscope is located in the
center.
3
Clip the ch1 probe to øA (A-phase) and ch2 probe to øB (B-phase).
4
Adjust the main signals (amplitude voltage) with the volume VR1 on the board while moving the Detec-
tor.
ch2
Ｂ
ch1
Ａ
To A-phase To B-phase
Tips
•
The positions of the check pin (TP) and volume (VR1) on the I/F Box board are different depending on the
main signal output type.
• Make sure that the oscilloscope does not drift during measurement.
For the details on the specified values of the amplitude voltage, center voltage, and phase error, refer
to "3.5.1 Adjusting the Detector Mounting Position" (page 17).
