Voltage Tracking Unit

Device Description

VTU (Voltage Tracking Unit) is a generation digital input module that provides voltage tracking in single phase or three phase systems. Digital input module has network analyzer specification that provides 4 channel voltage and 3 channel current input on device. In addition to network analyzer and voltage tracking, VTU provides to monitoring of energy parameters of single phase or three phase information that connects.

Logical 1 and 0 informations can be set with VTU Configuration Software which voltage range will work. At the same time, power parameter may also be observed which is calculated as real time.

Device Specifications
Supply Voltage Range 9-18 VDC / 18-36 VDC
Nominal Supply Voltage 12 VDC / 24 VDC
CPU ARM Cortex-M4 32 Bit
Flash 256 kB
RAM 32 kB
Watchdog Timer System Reset / 5 sec
Power Consumption 1.5W @ 24 V DC
Real Time Clock Available
Configuration Inavitas VTU Configuration Software
Communication Specifications
Communication Protocols Modbus-RTU (Slave) g/n
Serial Interfaces RS-485 (Isolated), Micro USB Type 2.0
Serial Communication Speed 1200bps – 115200bps
Connection Type 3-Wired (A, B, GND), Semi Duplex
Data Type 8 Bit Data, No Parity, 1 Bit Stop
Insulation 2.5 kVAC RMS 1 Minute
Usb Data Transfer Speed 480 Mbit/s
Digital Input Specifications
Voltage Measurement Range 0 – 275 VAC,RMS
Number of Digital Channels 18 Voltage Inputs
Logical “1” Value Programmable, Default : ≥ 150VAC,RMS ≤ 275 VAC,RMS
Logical “0” Value Programmable, Default : ≤ 150VAC,RMS
Input Current 1.5 mA / Channel
Input Filter Programmable, Default : 100ms
Input Change Counter 32 Bit
Power Measurement Specifications
Voltage Measurement Range 0 – 275 VAC,RMS (L – N), 0 – 500 VAC,RMS (L – L)
Current Measurement Range 1 – 4000 AAC,RMS (Split Type)
Frequency 50 / 60 Hz ±5%
Voltage Channels 3P + N (3 Phase Voltage and Neutral)
Current Channels 3 Current Inputs
Sampling Frequency 128 Sample / Cycle
Voltage Accuracy ±0,5%
Current Accuracy ±1%
Active Energy Accuracy IEC 62053-22 Class 0.5S
Accuracy Class IEC 61000-4-30 Class S