Block Diagram; Input Circuits - Omron K3GN Series Instructions Manual

Block Diagram

Analog input
Input circuit
terminal
Pulse/
Control
Control input
input
circuit
terminal

Input Circuits

Analog Input (DC Voltage/Current)
Use terminal 5 for analog common.
−
To A/D
Voltage
4
+
input
COM 5
Comparative Output
Contact Output
5 V
X
OUT1
OUT2
Transistor Output
NPN Output
8.2 Ω
OUT1
9
8.2 Ω
10 PASS
8.2 Ω
OUT2
11
12 COM
F-12
1/32 DIN Digital Panel Meter
Key Display
A/D
conversion
circuit
Micro-
EEPROM
computer
Waveform
rectification
circuit
Constant voltage circuit 1
Power supply circuit
Operating power supply
−
To A/D
Current
6
+
input
COM 5
PNP Output
12
COM
8.2 Ω
11 OUT2
8.2 Ω
PASS
10
8.2 Ω
OUT1
9
K3GN
Drive circuit
Output
circuit
Drive circuit
Output
Drive circuit circuit
Communica-
Drive circuit
tions driver
Constant voltage circuit 2
Note: 1. Transistor output models only.
2. Linear output models only.
3. Relay output models only.
4. Models with communications functions only.
Pulse Input/Control Event Input
(HOLD/ZERO)
• Use terminal 2 for the common terminal.
• Use the NPN open collector or the no-voltage contacts for the
control input.
NPN Input
24 VDC
PNP Input
24 VDC +
1
3
Hold/Zero Pulse
2
24 VDC −
Transistor output
(See note 1.)
Linear output
(See note 2.)
Contact output
X
(See note 3.)
Communications terminal
(See note 4.)
1
24 V
2
2.35 kΩ
3
4.7 kΩ
2.35 kΩ
4.7 kΩ