Delta AH500 series Manual Page 251

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AH500 Hardware Manual
5-93
5.10.5.1 Wiring the Differential Input Terminals
The direct-current signals ranging in voltage from 5 V to 24 V can pass through the high-speed input terminals
X0.0+~X0.3+, X0.0-~X0.3-, X0.8+~X0.15+, and X0.8-~X0.15- on AH20MC-5A. The frequency of input signals
can be up to 200 kHz. These high-speed input terminals are connected to a differential (two-wire) line driver.
Wiring differential input terminals (The wiring below is used for high speed and high noise.)
E
nco
d
er outpu
t
A
H20MC-5A high-speed inpu
t
A-
X0.8+
X0.8-
A+
A
B-
X0.9+
X0.9-
B+
B
5.10.5.2 Transistor Output Circuit
Transistor output
Load
Y0.8
LED
C0
A
H20M
C
-5A
< 0.5A
Direct-current power supply Emergency stop Fuse
The output terminals of a transistor module are open-collector output terminals. If Y0.8 is a pulse train
output terminal of a transistor module, the output current passing through its output pull-up resistor must
be greater than 0.1 A to ensure that the transistor module operates normally.
A relay or a solenoid valve is used as a DC load. A diode is connected in parallel to absorb the surge
voltage which occurs when the load is OFF.
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