LCD card three-phase meter RS485 Modbus meter-Global supplier

Xinyu Electronic Technology Co., Ltd., Shizilou North Road, Shizilou Street, Yanggu County, Shandong Province

Multi functional network power meter

Measure all three-phase electrical parameters (three-phase current, three-phase voltage, three-phase active power, combined active power, three-phase reactive power, combined reactive power, three-phase apparent power, combined apparent power, three-phase power factor, combined power factor, frequency), active energy, reactive energy, etc.

Standard RS485 interface, international standard Modbus rtu protocol, providing upper computer testing software, and engineering example programs for Kingview software.

Optional 4-channel switch input, 4-channel switch output, and 2-channel analog output module.

User Manual for Multi functional Power Meter

Debugging tool software manual download: http://pan.baidu.com/s/1kTww5O7

Brief introduction

This series of products is a multifunctional intelligent instrument with programmable measurement, display, digital communication, and power pulse output. It can complete power measurement, power metering, data display, acquisition, and transmission, and can be widely used in substation automation, distribution automation, intelligent construction, internal power measurement, management, and assessment of enterprises. The measurement accuracy is 0.5 level, realizing LCD on-site display and remote RS-485 digital interface communication, using MODBUS-RTU communication protocol.

3、 Installation and wiring

3.1 Instrument dimensions

3.2 Installation Method

(1) Open holes of varying sizes in the fixed distribution cabinet;

(2) Remove the instrument panel, loosen the screws, and remove the fixed bracket;

(3) The instrument is inserted into the installation hole from the front;

(4) Insert the instrument mounting bracket and tighten the screws to secure the instrument.

External dimensions:

This model of instrument has 4 different shapes, with a panel size of 96X96120X120. Two shapes can be equipped with functional modules such as switch input, switch output, and transmission output.

Panel size: 72X72mm, hole size: 68X68mm, depth: 90mm

Panel size: 80X80mm, hole size: 76X76mm, depth: 90mm

Panel size: 96X96mm, opening size: 91X91mm, depth: 80mm

Panel size: 120X120mm, opening size: 111X111mm, depth: 80mm

RS485 communication module:

RS458 supports standard Modbus rtu protocol commands: 01H, 02H, 03H, 04H, 05H, 0FH, 10H. Baud rate: 240048009600. Data format: 8-bit data bits, no checksum, 1-bit stop bit; 8-bit data bit, odd parity, 1-bit stop bit; 8-bit data bit, even check, 1-bit stop bit; 8 data bits, no checksum, 2 stop bits. The communication address, baud rate, and data format can be set through the instrument menu. All measured electrical parameters and parameter settings can be read out through the RS485 interface and can be connected to various PLCs, HMI， Configure software networking.

Relay output, switch input, transmission module output, additional fees depending on the number of modules!

Relay output module:

Up to 4 relays can be selected, which can operate in alarm or remote control mode. When working in an alarm state, the relay is associated with one of the measured electrical parameters, and if it is lower or higher than the set alarm value, the relay will act; When working in remote control mode, the action of the relay is controlled by Modbus rtu commands 05H, 0FH, 10H through the RS485 interface.

Switch input module:

Up to 6 switch inputs can be selected, using dry node resistance switch signal input method. The instrument is equipped with a+15V working power supply inside, which does not require external power supply. It can be used to monitor functions such as fault alarm nodes, opening and closing status, handcart position, capacitor compensation cabinet capacitor input status, etc. The status information can be remotely transmitted to the intelligent monitoring system through the communication interface. With the remote control/alarm relay function, automatic opening and closing can be easily achieved. The status of switch input monitoring can be set as the condition for relay output action, achieving functions such as locking and interlocking.

Transmission output module:

Up to 2 analog transmission output functions are provided, each of which can select any one of the 26 electrical parameters as the transmission output item. Through the instrument's own transmission output function, the analog transmission output function of electrical parameters (0-20mA, 4-20mA, 0-10-20mA, or 4-12-20mA) can be achieved, and the corresponding quantity relationship can be set arbitrarily.

3.3 Terminal Wiring Diagram

(Note 1: The wiring method is the same for different sizes)

(Note 2: The asterisk on the current line indicates the incoming line, and the incoming and outgoing lines are reversed. The electrical energy is measured to be in reverse phase.)

4、 Programming operation

4.1 Entering and Exiting Programming State

Enter programming mode:

Press and hold the "SET" key for 1 second while measuring the display status to enter the password authentication page. Use the "?", "▲", and "▼" keys to enter the password (default user password is 1111), and then press the "SET" key to enter the programming status page. Note: If you enter the password and press the "SET" key to exit the measurement display state, it means that the password entered is incorrect.

Exit programming state:

In programming mode, hold down the "SET" button for 2 seconds to exit the programming mode. The user will be prompted to choose whether to save the setting values. "Yes" will save the setting values, and "No" will not save them. Press the "SET" key to save, press other keys not to save.

4.2 Use of keys in programming operations

Function key SET: Confirm the setting value, enter the next setting or exit the setting.

Position selection key?: Cycle to select the digital tube to be set, and the selected tube will flash.

Add key ▲: Change the value of the flashing digital tube (the digital tube value cycles from 0 to 9).

Reduce key ▼: Change the value of the flashing digital display (the digital display value cycles from 9 to 0).

5.3 Parameter Setting Instructions

Serial Number	Description of serial number content	display	range
	Enter menu password	CodE	0~9999
	Description: Enter the password to enter the menu. Only with the correct password can you enter the menu. The factory default value is 1111
1	Connection	NEt	3P3L, 3P4L
	Instructions: 3P3L three-phase three wire connection, 3P4L three-phase four wire connection
2	Voltage multiplier	Pt	1~9999
	Explanation: This setting is for the multiplier of the PT used in the line, with a factory preset value of 1. If the PT type used in the line is 10kV/100V, the setting value for this item is 100
3	Current rate	Ct	1~9999
	Explanation: This setting is for the magnification of the CT used in the circuit, with a factory preset value of 1. If the CT type used in the circuit is 600A/5A, the setting value for this item is 120
4	Display mode	diSP	0~99
	Explanation: 0 is a fixed display mode, manually switch display items; Set the page to automatic switching from 1 to 99, with the value set as the interval time for display in seconds
5	mail address	Addr	1~247
	Explanation: The instrument address is used to identify the local machine during multi machine communication
6	Baud rate	bAUd	2400, 4800, 9600, 19200, 38400
	Description: Used to set the baud rate for RS485 communication, with a factory default value of 9600
7	Communication data format	dAtA	n.8.1、o.8.1、e.8.1、n.8.2
	Explanation: n.8.1 has 8 data bits and 1 stop bit without checksum, o.8.1 odd checksum has 8 data bits and 1 stop bit, e.8.1 even checksum has 8 data bits and 1 stop bit, n.8.2 has 8 data bits and 2 stop bits without checksum
8	Electric energy clearing 0	Eclr	yes、no
	Explanation: Yes, the energy data is cleared to 0, and no, the energy data remains unchanged
9	Save parameter modification value selection	SAVE	yes、no
	Explanation: Yes saves the modified parameter values, no keeps the previous parameter values unchanged
10	Menu entry password	Code	0~9999
	Description: Set the password to enter the menu, with a preset value of 1111

Six (detailed explanation, subject to the random instruction manual on the registration form)