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7. MODBUS Communication Protocol

7.1 Overview about Modbus RTU communication protocol

Modbus is a serial asynchronous communication protocol. Its physical interface is RS485. Modbus is designed for

modiconPL C and has the structural characteristics of PLC. In Modbus network control, the soft starter can be compared

to a PLC for reading and writing. The soft starter maps the start-stop control, status information (current, fault, etc.) and

function parameters to the holding register area (4XXX). It is read and written through the PL master station when in use.

7.1.1 Electrical interface

RS485 half duplex

Communication parameters:Baud rate: 9600; 8 data bits; no parity bit; 1 stop bit. .

7.1.2 Communication data format

Data format

Address code

Function code

Data area

CRC check

1 byte

N bytes

2 bytes

7.2 Related setting of soft starter

7.2.1 Register address

Operation code

Description of register function

40001

Control word

40002

Status word

40003

Current average value

40004

Fault code

40256-40273

03&06

Function code of soft starter

40274

Specification of rated current

40275

Specification of rated voltage

40290

Power voltage value

(1) Register not listed above is illegal and cannot be read or written. Otherwise, the slave station will report an exception

code to the controller.

(2) All data addresses are referenced to 40,000. i.e, the address of the coil relay 40001 is 0001, and the address of

402567 is 0100 (hexadecimal).

Содержание HRS Series

Страница 1: ...HRS Series High Performance Soft Starter Operation Manual V1 0 HNC Electric Limited ...

Страница 2: ...ion 14 4 Wiring 15 4 1 Application wiring diagram 15 4 1 1 Main circuit connection diagram of soft starter 15 4 1 2 Configuration diagram of terminals 16 4 1 3 Primary and secondary wiring diagram 17 4 1 4 Wiring diagram of relay and remote control 18 5 Display for Keyboard Interface 19 5 1 Description for displaying the keyboard 19 5 2 Buttons 19 5 3 Function and parameter table 20 5 4 Functions ...

Страница 3: ... 3 7 3 Abnormal response 34 7 4 Precautions for use 35 8 Precautions of Use and Daily Maintenance for HRS 36 8 1 Precautions for application use 36 8 2 Daily maintenance of soft starter 37 ...

Страница 4: ...ntents so as to be able to correctly install connect the circuit operate and maintain etc The technical specifications of this product may change without notice This instruction manual should be kept until the product is scrapped This instruction manual should be kept in the hands of the actual end user ...

Страница 5: ...tively limit the starting current of asynchronous motors when starting and can be widely used in heavy duty equipment such as fans water pumps conveyors and compressors It is an ideal replacement product for star delta conversion auto coupling step down magnetic control step down and other step down starting equipment The HRS Series soft starter not only has the same excellent performance as the i...

Страница 6: ... the fault and can record up to ten faults Full dynamic control monitoring starter of field bus easy to network The bus type is Modbus With multiple protection functions Protects against over voltage under voltage overheating phase loss and motor overload Perfect humanized design Harmony of beautiful appearance and reasonable structure Harmony of perfect functions and easy operation Harmony of fir...

Страница 7: ... through soft start avoid product displacement and liquid overflow Use and environmental conditions Main circuit power supply three phase AC 380V 10 15 50Hz 0 5 Note The above data only applies to this manual Control circuit power supply built in AC380V 50Hz Applicable motor general squirrel cage asynchronous motor Starting frequency It is recommended to start and stop no more than 20 times per ho...

Страница 8: ... 8 Safety Precautions ...

Страница 9: ...rference ability Starting parameters can be flexibly set according to different loads to obtain the best current curve and best torque control characteristics It provides a smooth and gradual starting process for the motor reduces the impact of the starting current on the power grid reduces the vibration and noise of the equipment extends the service life of the mechanical transmission system and ...

Страница 10: ...duct displacement and liquid overflow 1 4 Use and environmental conditions Use category AC 53b Rated insulation voltage 660V Rated impulse withstand voltage 6KV Rated limit short circuit current 10KA Rated voltage 380V 15 AC three phase symmetrical power supply Frequency 50Hz 60Hz 2 Number of starts 12 times min Cooling method The soft starter is naturally air cooled and the fan of the intelligent...

Страница 11: ...ntrol parameters appropriately the torque and current of the motor can be better matched with the load requirements Fig 1 Thyristor power module Fig 2 principle block diagram 1 7 Incoming inspection Before taking the soft starter out of its packaging materials please make sure that the packaging carton has not been damaged during transportation Damage to packaging cartons is usually caused by impr...

Страница 12: ...er than the load resistance moment to complete the start up For ordinary loads such as water pumps fans etc it is recommended to configure soft starters with the same or higher gear specifications and for heavy loads such as ball mills grade 6 fans and crushers it is recommended to configure soft starters with high or second gear specifications ...

Страница 13: ... 11 146 272 160 133 247 M6 4 0 HRS 7R5 B G3 7 5 15 146 272 160 133 247 M6 4 0 HRS 011 B G3 11 23 146 272 160 133 247 M6 4 0 HRS 015 B G3 15 30 146 272 160 133 247 M6 4 0 HRS 018 B G3 18 5 37 146 272 160 133 247 M6 4 0 HRS 022 B G3 22 45 146 272 160 133 247 M6 4 0 HRS 030 B G3 30 60 146 272 160 133 247 M6 4 0 HRS 037 B G3 37 75 146 272 160 133 247 M6 4 0 HRS 045 B G3 45 90 146 272 160 133 247 M6 4 ...

Страница 14: ...80 B G3 280 560 290 460 200 255 390 M8 30 HRS 320 B G3 320 640 290 460 200 255 390 M8 30 HRS 400 B G3 400 800 330 485 200 295 405 M8 36 HRS 450 B G3 450 900 330 485 200 295 405 M8 36 HRS 500 B G3 500 1000 330 485 200 295 405 M8 36 HRS 630 B G3 630 1200 410 550 230 375 470 M8 56 3 2 Requirements of installation Direction of installation The soft starter must be installed in the vertical direction n...

Страница 15: ... 15 4 Wiring 4 1 Application wiring diagram 4 1 1 Main circuit connection diagram of soft starter ...

Страница 16: ... 16 4 1 2 Configuration diagram of terminals 1 Terminal diagram of main circuit 5 5kW 55Kw 75kW 630kW 2 Terminal diagram of control circuit 3 Terminal wiring of control circuit ...

Страница 17: ... 17 4 1 3 Primary and secondary wiring diagram ...

Страница 18: ... 18 4 1 4 Wiring diagram of relay and remote control ...

Страница 19: ...X XXX at this time press the button to display the next previous parameter value 2 Press the SET button again to enter the setting state At this time the colon is flashing Then you can press button to modify the parameter value after the colon Press YES when the colon is flashing If the data has been modified it will display Data storage completed and it will beep twice indicating that the new dat...

Страница 20: ...ameter FB is valid otherwise the button cannot start the motor When the setting keyboard of function parameter FB is valid the keyboard can be stopped Otherwise the machine can not be shut down by pressing this button and the function is Reset in the fault state 5 3 Function and parameter table Function code Name Setting range Factory value Description F0 Starting voltage 30 80 30 Voltage ramp mod...

Страница 21: ...odify the parameters of all functions FD Communication address 0 64 00 Used for MODBUS local slave address setting FE Programming output 00 19 06 Used to define terminal output See the description in section 5 4 for details FF Turn stop current limit 30 100 80 FP Rated current valve of motor Rated value Used to enter the nominal rated current value of the motor FU Bypass delay 1 40S 3S Used to set...

Страница 22: ...mmed output process and restart the process When the setting item FE is 5 9 15 19 the programmable output FE works in the state output mode and the set working state output is as follows FE setting value 5 15 6 16 7 17 8 18 9 19 Output indication state Motor fault state Operating state Ready state Starting state Bypass state The programmable status output mode is used to indicate the working state...

Страница 23: ... Definition of load regulation Is the actual rated current of the motor Pr is the rated current of the soft starter For example The user s motor is 200A and the rated current of soft starter is 400A then the set value of code F6 is changed to 50 5 4 6 Code F9 starting mode The intelligent controller has 7 starting modes to adapt to various complicated motor and load conditions Users can select acc...

Страница 24: ...er uses this parameter as a benchmark to smoothly accelerate the motor to complete the starting process by controlling the output voltage It does not mechanically control the starting time value regardless of whether the motor accelerates smoothly In view of this when the load is light the starting time is often less than the set starting time as long as it can be started smoothly it is normal 02 ...

Страница 25: ...this mode it will run in direct starting mode It can monitor the parameters such as the motor running current When the operation is overloaded over voltage or under voltage the fault output 5 and 6 terminals are disconnected from the output and the corresponding fault information is displayed at the same time 5 4 7 Code FA protection level In order to adapt to different applications the protector ...

Страница 26: ... current Protection time None 3 seconds 15 seconds 30 seconds 15 seconds Set 5 times as the starting current exceeds F6 Running overload Tripping time table Current multiple I Ie 3 4 5 3 4 5 3 4 5 3 4 5 Values in the table Tripping time sc 4 5 2 3 1 5 23 12 7 5 48 23 15 23 12 7 5 Typical value The specification of soft start should be set according to the requirements of rated current and rated vo...

Страница 27: ...fault information UEr3 0 Software version No Display the version of this software is Ver3 0 Lxxxx Times of successful starts Where XXXX is the total times of successful starts Time run xx Starting time Where XX is the time of last start whether successful or not Note H1 H2 use recursive method to store 9 newly occurred fault information In the state of non soft start and soft stop and not enter th...

Страница 28: ...er s nominal rated current the standard deviation of judgement will increase Operating over current protection time inverse time thermal protection and trip protection are based on the max working current of the setting item F6 The time curve is shown in Fig 4 7 The protection lag time of low power voltage When the power voltage is lower than the set value the protection action time is 3 seconds T...

Страница 29: ...ay Please read the instruction sheet of function operation and fault solutions Check whether the motor has been locked load is too heavy Please release the lock of motor reduce the load Keyboard cannot start Check whether 07 10 terminals are displayed and opened circuit and code FB setting is normal If no display check whether power lacks of phase and check the incoming power If display check whet...

Страница 30: ...ltage several adjustments may be necessary to obtain ideal results If you use external control to start the motor cannot start The control connection is incorrect Start and stop signals are sent at the same time Check the connection of start and stop Check whether the start and stop signals are sent at the same time Check whether the keyboard is in the local control menu Check whether the paramete...

Страница 31: ...tting of setting item F7 is improper Error10 Too high power voltage Check whether input power voltage or the parameter setting of setting item F8 is improper Error11 Setting parameter errors Modify the setting parameters or hold down the YES button power on and restore the factory settings Error12 Load short circuit fault Check whether the load or SCR is short circuited or the load is too large Er...

Страница 32: ...d rate 9600 8 data bits no parity bit 1 stop bit 7 1 2 Communication data format Data format Address code Function code Data area CRC check 1 byte 1 byte N bytes 2 bytes 7 2 Related setting of soft starter 7 2 1 Register address Register address Operation code Description of register function 40001 06 Control word 40002 03 Status word 40003 03 Current average value 40004 03 Fault code 40256 40273 ...

Страница 33: ... starter and is represented by a word Bit Value Description 0 1 Starting status 0 Stopping status 1 1 Running status 0 Stopping status 2 1 Soft stopping status 0 Stopping status 3 1 Fault status 0 Normal status 4 15 Not used For example Read status register code 020 300 02 00 01 If the starter is in the starting process the return code 0203 02 00 01 If the starter fails the return code is 02 03 02...

Страница 34: ...rent to 250 The host sends the code 0206 01 05 00 FA the soft start return code is 0206 01 05 00 FA if it returns 0286 03 means unable to write maybe the starter is running 7 3 Abnormal response Code Name Description 01 Illegal function Function code cannot be executed soft starter does not support 02 Illegal data address The received data cannot be executed and the address overflows 03 Illegal da...

Страница 35: ...mber of registers Low volume CRC Check 0x01 0x04 0x01 0x80 0x01 0x80 04 function code register address is wrong so the slave station responds Function code Abnormal code CRC check 0x84 0x03 7 4 Precautions for use 1 The communication address communication speed and inspection mode of the soft starter must be the same as the communication settings of the controller 2 If the response data cannot be ...

Страница 36: ...evice in the soft starter Megohmmeter Do not use a megohmmeter to measure the insulation resistance between the input and output of the HRS soft starter otherwise the SCR and control board of the soft starter may be damaged due to over voltage A megohmmeter can be used to measure the phase to phase and phase to ground insulation of the HRS soft starter but three short circuit wires should be used ...

Страница 37: ...ion level of the soft starter will be reduced and the soft starter may not work properly a Creepage and arcing in the primary circuit will endanger the equipment b Leakage short circuit in the secondary circuit control failure c Strengthen the seat corrosion of metal parts Dry a Drying with electric blowing or electric furnace b Dehumidification in the power distribution room Schedule 1 Applicatio...

Страница 38: ...he specification parameter list of peripheral accessories is for reference HRS Series Soft Starter 75KW 320KW Model Rated power kw Rated current A SCPD specification Supporting circuit breaker model QF Supporting bypass contactor model KM Specification of primary cable Remark HRS 075 B G3 75 150 RS0 300 TGM1 225U200 CJ20 250 35mm2 cable For 75KW and above the cable is used to lead the wiring and t...

Страница 39: ...r wire For 400KW and above the cable is used to lead the wiring and the method is six in and three out Rated power rated current refers to the max value of the soft starter HRS 450 B G3 450 900 DZ20Y1250 3300 1000A CJ40 1000 50 x 6mm2 copper wire HRS 500 B G3 500 1000 DZ20Y1250 3300 1250A CJ40 1000 60 x 8mm2 copper wire HRS 630 B G3 630 1200 DZ20Y1250 3300 1250A CJ40 1200 60 x 8mm2 copper wire Not...

Страница 40: ...e product is used for abnormal functions c Failure caused by self repair or modification without permission d Damage caused by improper storage fall or other external factors after purchase e Failures caused by natural disasters such as abnormal voltage lightning water mist fire salt corrosion gas corrosion earthquakes storms or accompanying disasters f Unauthorized tearing up of product identific...

Страница 41: ... 41 Thanks for choosing HNC product Any technique support PLS feel free to contact our support team Tel 86 20 84898493 Fax 86 20 61082610 URL www hncelectric com ...

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