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System configuration and wiring
Interface Circuit (Output Circuit)
S O 1
Sequence output circuit
• This comprises a Darlington amplifier with
an open collector. This is connected to a
relay or photo coupler.
• There exists a collector-to-emitter
voltage V
SAT) of approx. 1.2V at
CE
(
transistor ON, because of Darlington
connection of the output transistor.
Note that normal TTL IC can't be
directly connected since this
does not meet V
• If the recommended current value of the actual
photocoupler is 10mA, calculate the resistance
using the formula below.
V
DC
R =
10
For the recommended current value, see the data sheets
of actual equipment and photocoupler.
PO1 Line Driver (Differential Output)
Output
• Provides differential outputs of encoder
signals (A, B and Z phases) that come
from the scaler.
• Receive these signals with a line receiv-
ers. In this case, install a resistor of
approx. 330Ω between the inputs.
s h o w s a p a i r o f t w i s t e d
wires.
requirement.
IL
- 2.5
[KΩ]
Install as per the fig. shows
without fail
12~24V
V
DC
R [kΩ]
13
AM26LS32
or equivalent
Connect the amplifier signal grounds to the
controller.
- 34 -
SO1
ALM
SO1
WARN
or other
signal
COM–
Maximum rating:
30V, 50mA
AM26LS31
or equivalent
15
OA+
A
OA-
16
B
OB+
17
OB-
18
19
OZ+
Z
OZ-
20
14 GND
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