VTU

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.

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  • Device Specifications
  • Technical Specifications
  • Input/Output
  • Power Measurement Specifications
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
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