Inverter specific tachometer AOB195U-8X1

1、 Overview of AOB195U-8X1 speed gauge for frequency converter

1.1 Purpose

AOB195U-8X1, a dedicated tachometer for frequency converters, is a new generation programmable intelligent ammeter mainly used for real-time measurement and indication of DC voltage in electrical circuits, and through

RS485 interface or analog transmission output interface for remote transmission of measured electricity data.

1.2 Functional Features

Adopting modular design approach and full SMT production process

Voltage and current measurement display range (or transformer multiplier) can be freely set

One channel analog transmission output function (optional), the output can be programmed to be 0-10mA, 0-20mA, 4-20mA at will

One way lower limit alarm output or two-way switch remote control output function (optional), alarm action delay time can be set arbitrarily within the range of 0-60s

RS485 communication output function (optional), using standard MODBUS-RTU communication protocol

It can simultaneously have one analog transmission, one lower limit alarm, and RS485 communication output functions

Two or four switch input status detection function (optional), combined with RS485 communication to achieve 'remote signaling' and 'telemetry' of switch status

Minimum value viewing function

3、 Technical parameters of AOB195U-8X1 dedicated tachometer for frequency converter

3.1 Measurement range of DC voltmeter: DC0-10V

3.2 Measurement range of DC ammeter: DC4-20mA

3.5 Accuracy: ± 0.5% FS ± 1 word

3.6 Sampling rate: about 3 times/s

3.7 Measurement display method: average value measurement, four digit LED digital tube effective value display

3.8 Display resolution: can be freely set to 1, 0.1, 0.01, 0.001

3.9 Input circuit power consumption: current<0.5VA, voltage<1VA

3.10 Auxiliary power supply: AC/DC85-264V 50/60Hz

3.11 Auxiliary power consumption:<3VA

3.12 Overflow indication: Display characters "HHHH" or "LLLL"

3.13 Alarm output: The upper and lower limit alarms are output by the same relay, with contact capacities of AC250V/1A and DC30V/2A

3.14 Transmission output: can be freely set to DC0-10mA, 0-20mA, or 4-20mA, with an accuracy of ± 0.5% FS, in conjunction with signal input and auxiliary

Electrical isolation between power ports

3.15 Transmission output load resistance: ≤ 300 Ω

3.16 Communication interface: RS485 serial communication, using MODBUS-RTU communication protocol

3.17 Working environment: Non corrosive environment with temperature ranging from -10 to 50 ℃ and humidity ≤ 85% RH