LU-S14000 Series I/O Modules

Overview
The LU-S14016 analog input/output module provides single-channel strain-gauge mV/mA voltage/current signal input acquisition and single-channel excitation voltage 0-10V output. Optical isolation of the A/D input, optical isolation of the D/A output and more than 3000V power supply isolation effectively prevent ground loop currents and high-voltage surges. It also provides 4 digital outputs with open-collector 30V and 30mA drive capability. They can control solid-state relays, thereby controlling heaters, pumps and other electronic equipment. Digital output channels 0 and 1 also include upper- and lower-limit alarm functions, with the limits downloaded from the host to the module EEPROM. The alarm function can be enabled or disabled remotely; when it is activated, digital output channel 1 indicates the upper-limit alarm status and digital output channel 0 indicates the lower-limit alarm status, and the host can read the upper- and lower-limit alarm status at any time. It supports the Modbus protocol and uses the RS-485 bus for communication transmission, with a built-in optocoupler providing 3000V isolation voltage. It features surge protection, spike absorption and lightning protection.

Main features
Superior immunity to interference (EMC)
•High ESD immunity Test results: air discharge ±12KV; contact discharge ±6KV
•Easily passes 3KV fast transient burst interference (EFT test)
•Lightning surge impact protection ±2KV
•Radiated noise immunity test An analog noise interference source is provided through a winding (Impulse voltage: 1KV, Impulse width: 1us); no abnormality after 10 min of application
•Voltage dips, short interruptions and voltage variation immunity test Power supply ramp ±20%Ut, time ramp 2s±20% Voltage dip and temporary interruption 40%Ut, duration 5s

Strain output
•Effective resolution: 16 bits
•Channels: one differential channel
•Input types: mV and mA
•Input ranges: ±150mV, ±500mV, ±1V, ±5V, ±10V, ±20mA
•Isolation voltage: 3000Vdc
•Input surge protection: yes
•Sampling rate: 10 samples/s
•Input impedance: 20MΩ
•Bandwidth: 2.62Hz
•Accuracy: ±0.05% or better
•Zero drift: ±6μV/°C
•Full-scale drift: ±25ppm/°C
•CMR @ 50 / 60Hz: 150dB
•NMR @ 50 / 60Hz: 100dB

Analog output
•Channels: 1
•Output type: V / mV
•Output range: 0~10V/0~20mA
•Drive current: 30mA
•Isolation voltage: 3000Vdc
•Accuracy: 0.05% of FSR
•Drift: ±5ppm/°C

Digital output
•Number of channels: 4
•Open-collector output under max load: 30V, 30mA
•Power dissipation: 300mW Communication
•Mode: RS-485
•Protocol: Modbus
•Isolation voltage: 3000Vdc
•Surge protection, lightning protection: yes

Built-in watchdog timer
Power supply
•Power requirement: +10~+30Vdc (unregulated)
•Power consumption: 2.2W