Voltage measurement transducer MB-1U-1

With Modbus RTU.
The transmitter MB-1U-1 is designed to measure the voltage and exchange data using the RS-485 port in accordance to MODBUS RTU protocol.

SKU: MAX-MB-1U-1 Category: I/O extension modules

Functioning
The module measures the value of input voltage (AC or DC voltage circuit). Reading the value of the input voltage and setting all parameters of communication are realised by the user via RS-485, using MODBUS RTU communication protocol.
Switching power supply voltage is indicated by a green LED U. The correct exchange of data between the module and the second device is indicated by a yellow LED Tx.
The transmitter measures the RMS voltage TrueRMS, which ensures high measurement accuracy even with distorted waveforms.

Reset communication settings
Under cover is available code switch.
Details of resetting available in the instructions below.

Confıguration

Reference MAX-MB-1U-1

Power supply voltage: 9÷30 V DC
WE-WY breakthrough voltage: 3 kV
ports: RS-485
Communication protocol: MODBUS RTU
The type of work: SLAVE
Baudrate: 1200÷115200 bit/s
Data bits: 8
Stop bits: 02-sty
Bits of parity: EVEN / ODD / NONE
Address: 1÷247
Maximum measuring error: 0,50%
Processing error: ±0,5%
Measurement range TrueRMS - alternating AC voltage: 0÷285 V
Measurement range TrueRMS - DC voltage: 0÷400 V
Power consumption (max): 50 mA
Precision of reading the register: 1 V
Sampling frequency: 10 Hz
Relative air humidity (for 30: 85%
Terminal: pluggable terminal blocks 2,5 mm²
Tightening torque: 0,4 Nm
Dimensions: 1 module (18 mm)
Assembly: on rail 35 mm
Ingress Protection Marking: IP20

MB-1U-1 manual📄

MB-1U-1 outline CAD dxf📄

AC AH AV AT MB MR RM declaration CE 2024📄

Description of inputs/outputs

Module in RS-485 network

Network address setup

Reset communication settings

Bizi Arayın