Omron K3MA-J Series User Manual

K3MA-J
4
Connections
■ Terminal Arrangement
■ Block Diagram
■ Input Circuits
Analog Input (DC Voltage/Current)
Power
supply
Output
terminals
Input
terminals
A1
A2
E1
E2
E3
E4
E5
E6
E4
E5
E6
100- to 240-VAC
type or 24-VAC/
VDC type
(No polarity for
24-VDC
connection.)
Models with
comparative
output
Voltage input
For voltage input For current input
OUT1
OUT2
COM
COM
Current input
Terminal No. Name Description
Operation power Connects the operation power supply.
Analog input Connects the voltage or current analog input.
Outputs Outputs the relay outputs.
A1 A2
-
E4 E6
,
E5
-
E1 E2
,
E3
-
X
5 V 12 V
Input Input circuit
Micro-
computer
Key
Display
Output
circuit
Contact output
(See note.)
Constant voltage circuit
Power supply circuit
EEPROM
Note: Relay output models only.
−
＋
−
＋
Voltage input
Current input
COM
To A/D
A+B=1 MΩ
COM
To A/D
45 Ω
4
5
6
5
A
B

Omron K3MA-J Series Specifications

General

Input Type	Voltage, Current, Thermocouple, RTD
Accuracy	±0.3% FS ±1 digit
Sampling Period	0.5 s
Protection structure	Front panel: IP66
Control Output	Voltage
Alarm Output	Relay
Mounting	Panel mount
Communication	RS-485
Relay Output	250 VAC, 3 A (resistive load)
Power Supply Voltage	100 to 240 VAC, 50/60 Hz; 24 VAC, 50/60 Hz; 24 VDC
Humidity	35 to 85% RH (non-condensing)