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 opening the door to a world of connectivity and control.
Device Specification
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
Communication Specifications
Communication Protocols
Modbus-RTU (Slave), IEC60870-5-104, IEC62056-21
Serial Interfaces
RS-485, Micro USB C Type 2.0
Serial Communication Speed
1200bps – 115200bps
USB Data Transfer Speed
480 Mbit/s
Power Measurement Specifications
Voltage Measurement Range
0 – 275 VAC,RMS (L – N), 0 – 500 VAC,RMS (L – L)
Curren 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
Environment Conditions
Operating Temperature
-25°C / +85°C
Storage Temperature
-40°C / +70°C
Operating Humidty
25% – 95% RH
Protection Class
IP20
Mechanical Specifications
Device Dimensions (W x H x D)
35mm x 100mm x 115mm
Weight
150gr