Opto 22’s G4 AC input modules are used to detect on/off AC voltage levels. Each module provides up to 4000 volts of optical isolation (transient) between field inputs and the logic output of the circuit.
All AC input modules are designed with filtering on the input and a hysteresis amplifier, providing high noise rejection and transient-free “clean” switching.
Typical applications for AC input modules include sensing the presence or absence of voltage, and sensing contact closure from sources such as proximity switches, limit switches, float switches, selector switches, push buttons, toggle switches, and thermostats.
AC
Input Modules
|
Units
|
G4IAC5
|
G4IAC5L
|
G4IAC5A
|
G4IAC5MA
|
Input voltage range
|
VAC
or VDC
|
90–140
|
90–140
|
180–280
|
90–140
|
Key feature
|
--
|
--
|
Low
R in
|
--
|
Diagnostic
switch
|
Input current at maximum
line
|
mA
|
5
|
11
|
5
|
5
|
Isolation, input-to-output
(transient):
1 ms
1 minute
|
V
V
|
4000
1500
|
4000
1500
|
4000
1500
|
4000
1500
|
Turn-on time
|
ms
|
20
|
20
|
20
|
20
|
Turn-off time
|
ms
|
20
|
20
|
20
|
20
|
Input allowed for off-state
|
mA,
V
|
1.4,
40
|
3,
45
|
0.7,
45
|
1.4,
40
|
Nominal output voltage
supply
|
VDC
|
5
|
5
|
5
|
5
|
Output supply voltage
range
|
VDC
|
4.5–6
|
4.5–6
|
4.5–6
|
4.5–6
|
Output supply current
at
nominal logic voltage
|
mA
|
12
|
12
|
12
|
12
|
Input resistance (R1
in schematic)
|
ohms
|
28
K
|
14
K
|
70K
|
28
K
|
Control resistance (Rc
in schematic)
|
ohms
|
220
|
220
|
220
|
220
|
Output voltage drop
|
V @
50 mA
|
0.4
|
0.4
|
0.4
|
0.4
|
Output current (sinking)
|
mA
|
50
|
50
|
50
|
50
|
Output leakage with
no input
|
microamps
@ 30 VDC
|
100
|
100
|
100
|
100
|
Transistor
|
V breakdown
|
30
|
30
|
30
|
30
|
Temperature
Operating:
Storage:
|
°C
°C
|
-30 to +70
-30 to +85
|
-30 to +70
-30 to +85
|
-30 to +70
-30 to +85
|
-30 to +70
-30 to +85
|
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