５．Output Wave Form - Canon R-1P32 Instruction Manual

Setting of Resolution
4-5
Four resolutions can be set by shorting Pins 14 (SEL1) and 15 (SEL2) of the
connector to GND or opening them as shown at below.
Resolution indicates the inter-edge spacing of A-phase and B-phase pulses (see
5-1).
Resolution
(sec)
0.5
1.0
2.0
0.8
５ ５ ５ ５ ． ． ． ． Output wave form
５．Output wave form
Encoder signal output
5-1
90°±10°
A-phase
B-phase
Z-phase
Clockwise rotation
ｌooking from shaft side.
【Note】
Z phase is not synchronized with A phase or B phase
Z phase rising edge is the same position both in Clockwise and in
Counterclockwise rotation. The Z-phase output is one pulse per rotation. As the
pulse width is narrow, use the "peak detection" mode of oscilloscope for
monitoring the Z-phase signal.
The pulse width of the Z-phase is 500 – 1250 nsec. In case the receiving IC needs
a wider pulse width, increase the width using a one-shot multi-vibrator (74 LS221
etc.).
Pulses
Pin 14 (SEL1)
ppr
648,000
324,000
162,000
405,000
A-phase
B-phase
500～1250nsec
Pin Setting
GND
Open
GND
Open
90°±10°
Z-phase
Counterclockwise rotation
ｌooking from shaft side.
Pin 15 (SEL2)
GND
GND
Open
Open
500～1250nsec
7