1YK-53 seriesIntelligent electrical parameter testerOverview and purpose:

The YK-53 digital electrical parameter testing instrument is suitable for on-site monitoring, display, control, and automation communication of power grids and automation control systems. It can sample, convert, and output standard current or voltage signals in real-time from electrical parameters such as current, voltage, single-phase or three-phase power, frequency, etc. in the power grid through the CPU, and connect them to remote data terminals. Intelligent communication products are equipped with RS-485 communication interfaces, which can directly exchange data with the control center to achieve automated management. Widely used in industries and departments such as power, postal and telecommunications, petroleum, coal, metallurgy, railway, municipal, intelligent buildings, etc. for electrical installations, automatic control, and dispatch systems.

2、 Main technical indicators:

Basic * Difference: 0.2% FS ± 1 word;

Display: Three four digit LED digital displays;

Input signal: nominal input AC/DC current 5A, voltage 100V, 220V, 380V.

Overdrive duration: 1.2 times, instantaneous: current twice/1 second, voltage twice/1 second.

Alarm output: Two limit alarm or four limit alarm, each output can be set as upper limit alarm, lower limit alarm or prohibited use according to needs, relay output contact capacity AC220V/3A or AC220V/1A.

Transmission output: 4-20mA (load resistance ≤ 500 Ω), 0-10mA (load resistance ≤ 1000 Ω), 1-5V, 0-5V (load resistance ≥ 200K Ω).

Communication output: Isolated serial bidirectional communication interface RS485/RS232/modem.

The baud rate can be freely set internally between 1200-9600bps.

Power supply: Switching power supply 85-265VAC.

Power consumption: 4W.

Environmental temperature: 0-50 ℃.

Environmental humidity:<85% RH.

3、 Model selection instructions:

4、 Operating instructions:

（1） Panel Description

Work status, press the ■ key to switch display content. The display content screen is divided into:

1. In working state, the V indicator light is on; Display the three-phase voltages A, B, and C from row * respectively.

2. The A indicator light is on; Display the three-phase currents A, B, and C from row * respectively.

3. The PF indicator light is on; Display power factor from the * row and active power from the second row.

4. The row displays Hz, and the second row displays the grid frequency.

5. The row displays q, and the second row displays reactive power.

6. The row displays S, and the second row displays visible power.

7. The row displays uAH, the second row displays 4 higher active energy levels, and the third row displays 4 lower active energy levels.

8. The row displays qAH, the second row displays 4 higher reactive power levels, and the third row displays 4 lower reactive power levels.

9. The row displays uAAH, the second row displays 4 higher total energy levels, and the third row displays 4 lower total energy levels.

（2） Power on self-test

⑴ Connect the power, input, output, alarm and other wiring of the instrument according to the terminal wiring diagram of the instrument.

Carefully check the wiring of the instrument, and only turn on the power after it is correct.

After connecting the power, the upper row of the instrument displays HELO and the lower row displays PASS, indicating that the instrument self-test has passed. The instrument uses a human-machine dialogue to input parameters and various prompts to indicate the data that should be input.

（3） Key function

● - Backup.

En - Used to store new set values of parameters and select the next set parameter when setting the state.

When in the set state, hold down the key for about 3 seconds to exit the set state.

▲ - Used to increase the set value when setting the state.

▼ - Used to reduce the set value when setting the state.

（4） Parameter setting

In the set state, the upper window of the instrument displays the parameter prompt, and the lower window displays the set value.

If the parameters remain unchanged for 12 seconds during the setting process, the instrument will automatically return to operation.

The parameter settings are as follows:

(1) Press the En key, the upper row displays - Cd -, and the middle displays 800. Use the ▲ and ▼ keys to set 800 to 808, and then press the En key to enter the parameter setting state. Entering other values is invalid, mainly to prevent non operators from accidentally modifying parameters on site.

(2) LinE: 3P4L: Choose the three-phase 4-wire connection method and algorithm, and 3P3L chooses the three-phase 3-wire connection method and algorithm.

(3) - Ur -: Voltage multiplier, Ur=primary value of voltage transformer/secondary value of transformer, set range 1-9999, Ur=1 when the transformer is not in use.

(4) Ir -: current multiplier, Ir=primary value of current transformer/secondary value of transformer, set range 1-9999, Ir=1 when the transformer is not in use.

(5) A-UF - Voltage A-phase modulation full degree correction coefficient range 0.500~2.000, corrected display value=A-UF x pre correction value) Factory value A-UF=1000.

(6) A-IF - The range of the current A-phase modulation full degree correction coefficient is 0.500 to 2.000, and the displayed value after correction is equal to A-IF multiplied by the pre correction value. The factory value A-IF is 1.000.

(7) B-UF - Voltage B-phase modulation full degree correction coefficient range 0.500~2.000, corrected display value=B-UF x pre correction value) Factory value B-UF=1000.

(8) B-IF - current B-phase modulation full degree correction coefficient range 0.500~2.000, corrected display value=B-IF x pre correction value) Factory value B-IF=1000.

(9) C-UF - Voltage C-phase modulation full degree correction coefficient range 0.500~2.000, corrected display value=C-UF x pre correction value) Factory value C-UF=1000.

(12) C-IF - The range of the current C-phase modulation full degree correction coefficient is 0.500 to 2.000, and the displayed value after correction is equal to C-IF multiplied by the pre correction value. The factory value C-IF is 1.000.

(12) Disp: Panel display selection, range 0-4, set 0 for inspection display, set 1 for voltage display, set 2 for current, power factor, power, set 3 rows for power factor display, and the second row for active power display. Set 4 to display the grid frequency.

(4) Addr - The communication address is the instrument number, ranging from 1 to 99.

(5) BAUD - baud rate for communication, ranging from 1200 to 9600.

Parameter setting is complete, display - End, and the instrument automatically enters the running state.

5、 Communication instructions

This instrument can be equipped with RS232 and RS485 interfaces for direct communication with a computer, using the RS485 standard.

The communication distance is 1.5km, and multiple instruments can be attached. The RS232 standard communication distance is 15m, and only one instrument can be attached. The TXD, RXD, and GND of the RS232 interface are respectively connected to the second, third, and fifth pins of the computer serial port. The data format consists of 1 start bit, 8 data bits, no checksum, and 1 stop bit.

This device adopts the standard Modbus RTU communication protocol and can be connected to almost all configuration software. It can connect to domestic configuration software such as Kingview, Power Control, Century Star, Fix, InTouch, etc., saving users the trouble of connecting software. When using configuration software, the device to be selected is a Modicon PLC, Modbus RTU address type, with integer 16 bit data, starting from 4001 using the Kingview register. Other configuration software may start from 3001.

Example: Read the PV (PV=1000) value of the instrument with address 1.

The data sent is 01 03 00 00 01 84 0A.

The returned data is 01 03 02 03 E8 B8 FA (where 03 E8-1000), where 01 is the instrument address, 03 is the function number, 00 00 is the register start address, 00 01 represents reading a number, 840A is the checksum, and B8 FA is the checksum in the returned data. Long integer data such as active energy=data high-order x 65536+data low order. During configuration, users can also select register 4014 with a data type of long integer, and the system will automatically calculate the accumulated amount.

The accumulated value of apparent energy can be written, and the data writing command (long integer data) uses the 10H command, 01 10 00 05 00 02 04 00 01 02 03 23 31. Among them, 04 represents writing 4 bytes, and the alarm value is 0X00010203=66051. For details, please refer to the MODBUS website.

6、 Terminal wiring:

B specification single-phase power voltage current wiring diagram 96 × 96mm.

7、 Precautions for using and ordering YK-53 intelligent power meter:

1. Users must carefully read the user manual before use, strictly follow the methods specified in the manual for wiring and operation settings, otherwise it will affect the safety of use and the normal operation of the instrument;

2. Users must refer to the relevant product specifications before placing an order and make functional selections based on actual needs;

3. Please indicate the measured power level when placing an order, so that we can provide you with panel display units;

4. When the user places an order without special instructions, we will provide a three-phase three wire power meter;

5. Please connect the current and voltage signals according to the prescribed phase, and do not connect them in reverse;

6. Without permission, it is not allowed to dismantle the instrument without authorization;

7. Accessories for this product: 1 set of installation accessories, 1 manual, and 1 certificate of conformity;

8. This product comes with a one-year warranty and lifetime maintenance from the date of manufacture.