- Instant display (voltage, power factor, current, power, frequency)
- Ability to set automation in 12 modes and 4 relays (Internal PLC)
- Ability to connect to MATLAB software
- Ability to connect to the battery
- Maximum measurable voltage: 280 volts (two-phase, single-phase)
- The maximum measurable current is 100 amperes (using CT 100:1)
- The maximum measurable frequency is 60 Hz
- Voltage measurement accuracy 0.1 v
- Current measurement accuracy 0.2 A
- The accuracy of power measurement is 0.4 W
- Frequency measurement accuracy of 0.1 Hz
- The accuracy of power factor measurement is 0.01%
point:By changing the resistances of R17 and R16 in PZEM, it is possible to measure the voltage of more than 280 volts (This is a voltage divider circuit).
For example, if R17 is equal to 2 megaohms and R16 is equal to 750 ohms, the voltage can be measured up to 500 volts.
It is also necessary to make changes in the Arduino codes, Additional information in the folder 500 volts
*point 2:This system also supports Modbus protocol. You can add this potkal to it. And it was in contact with other industrial equipment such as HME and PLCs
Number |
|
| Arduino Nano | 1 |
| PZEM004t | 1 |
| Liquid Crystal Displays (Character LCD) | 1 |
| 4-channel relay module | 1 |
| push button | 5 |
| switch | 1 |
| Potentiometer 10 kilo ohms | 1 |
| 10 kilo ohm resistance | 5 |
| n-channel MOSFET | 1 |
Connecting power meter to MATLAB and view the data on the chart https://youtu.be/Np4y_KRA4oQ
voltage measurement test https://youtu.be/dCQaTeNKbkk
current measurement test https://youtu.be/r_vkd0LcIXw
Relay function test https://youtu.be/pQEmvJ6B6WI
To access the settings menu, we must first turn the MODE key on and set the required parameters with the arrow keys.
| parameter in the settings menu | use |
| OVER Voltage | Maximum voltage limit |
| LOW Voltage | Minimum voltage |
| OVER Current | maximum current limit |
| LOW Frequency | minimum frequency |
| OVER Frequency | Maximum frequency limit |
| LOW POWER FACTOR 1 | steps, one power factors |
| LOW POWER FACTOR 2 | steps, two power factors |
| LOW POWER FACTOR 3 | steps, three power factors |
| TMS 1 SET | timer relay one |
| TMS 2 SET | timer relay two |
| TMS 3 SET | timer relay three |
| TMS 4 SET | timer relay four |
| R1 | set the operation mode of relay one |
| R2 | set the operation mode of relay two |
| R3 | set the operation mode of relay three |
| R4 | set the operation mode of relay four |
After making the settings, turn the MODE key to the off position so that the data is stored in the permanent memory of the controller
* Each relay timer unit is 100 milliseconds
____________________________________________________________________________________________1- reverse time overcurrent function
2- Additional constant time flow function3-Overvoltage function
4- voltage reduction function
5- frequency reduction function
6- frequency increase function
7- Function of the function of going out of normal mode (frequency, voltage, current)
8-Function of power factor steps of one
9-Function of power factor steps of two
10- Function of power factor steps of three
11-The operation of voltage out of normal mode
12- Function of frequency out of normal mode