- 40 -
Sequence output circuit
• This comprises a Darlington amplifier
with an open collector. This is connected
to a relay or photo coupler.
• here exists a collector-to-emitter oltage
VCE(SAT) of approx. 1V at transistor
ON, because of Darlington connection
of the out put transistor. Note that nor-
mal TTLIC can't be directly connected
since this does not meet VIL re
quirement.
• This circuit has an independent emitter
connection, or a emitter connection that
is commonly used as the minus (-) ter-
minal (COM-) of the control power.
• The maximum rating is 30V, 50mA.
SO1
SO2
Install as per the fig. Shows with-
out fail
Calculate the value of R using the formula below so
as the primary current of the photo coupler become
approx. 10mA.
PO Line Driver (Differential Out-
put) Output
• Provides differential outputs of encoder
signals (A, B and Z phases) that come
from the scalar.
•
Receive these signals with a line re-
ceivers. In this case, install a resis-
tor of approx. 330Ω between the in-
puts.
• These outputs are non-insulated signals.
Connect the signal grounds between the
controller and driver.
System Confguration and Wiring
Interface Circuit (Output Circuit)
R =
V
DC — 2.5
1
[KΩ]
V
DC
12~24V
SO1
+
ALM+
or other signal
ALM-
or other signal
COM-41
ZSP, TLC
-
SO2
AM26LS32
or equivalent
AM26LS31
or equivalent
A
B
Z
22
21
OA+
OA-
OZ+
OZ-
OB+
OB-
48
23
25GND
24
49
shows a pair of twisted wires.
To Next Page
Loading...
