No. SX-DSV03015 - 47 -
Motor Business Unit, Panasonic Corporation
Feedback pulse of rotary encoder
OA+
OA-
OB+
OB-
OZ+
OZ-
GND
AM26LS32
(or equivalent)
AM26LS31
(or equivalent)
21
22
48
49
23
24
25
A
B
Z
Connect signal ground of the host
and the driver without fail.
19
25
CZ
GND
High speed photo-coupler
TLP554
(or equivalent)
Max. rating 30 V,
50 mA
represents twisted pair
Note:
[1] As well as being output in the line driver, only the Z-phase signals are output to the pin 19 (CZ) in the
open collector. When using this CZ signal, be careful not to be subject to the noise impact.
[2] Use a line receiver (AM26C32 or equivalent) for receiving the output pulses. Then, attach ppropriate
terminating resistor between inputs of the line receiver.
[3] In the Z-phase signal output, be aware that the logic of line driver output (OZ) is the reverse of that of
the open collector output (CZ).
[4] Use the pulses at less than or equal to the maximum output frequency 4 Mpps (after quad edge
valuation).
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