Emheater EM8 Series User Manual Download Page 1

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User’s Manual

China EM Technology Limited

Address:

No.80, Baomin 2 road, Xixiang, Bao'an District,Shenzhen ,China

Phone:

86-0755-29985851

Fax:

86-0755-29970305

Zip code:

518101

Website :

Http://www.emheater.com

China EM Technology Limited

EMHEATER

EM8 Series Frequency Inverter

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Summary of Contents for EM8 Series

Page 1: ...No 80 Baomin 2 road Xixiang Bao an District Shenzhen China Phone 86 0755 29985851 Fax 86 0755 29970305 Zip code 518101 Website Http www emheater com China EM Technology Limited EMHEATER EM8 Series Fre...

Page 2: ...ries of practical operation control function which provide a highly integrated solution for equipment manufacturers and terminal customers in speed energy saving protection automatic control and other...

Page 3: ...ation 5 2 3 Installation size of inverter 7 2 4 Cable sectional area of inverter and breaker 9 2 5 EM8 inverter circuit diagram 10 2 6 Main circuit terminal explanation 11 2 7 Terminal of control circ...

Page 4: ...entiometer set frequency 79 7 1 1 Parameter settings 79 7 1 2 Basic wiring diagram 79 7 1 3 Running description 79 7 2 Three wire control mode 79 7 2 1 Parameter settings 79 7 2 2 The basic diagram 80...

Page 5: ...7 Appendix 1 RS485 Communication Protocol 88 1 Summary 88 1 1 Content of communication protocol 88 1 2 Scope of application 88 1 2 1 Applicable devices 88 1 2 2 Application type 88 2 Bus structure and...

Page 6: ...fore wiring please confirm the input power has cut off Please let electrical engineering personnel wiring homework Grounding terminals must be reliable grounding Prohibit to input the power to output...

Page 7: ...acitor and piezoresistor of improving power factor of electricity As the inverter output voltage is pulse wave so the output side cannot connect capacitor and piezoresistor which will damage inverter...

Page 8: ...2 9 About IP Our inverter is IP20 you can add cabinet to improve its protection level 1 3 End of life caution When you end of inverter life The capacitor of main circuit and board can not burn it will...

Page 9: ...015 380 11 25 12 390 240 235 EM8 G3 015 EM8 P3 018 380 15 33 EM8 G3 018 EM8 P3 022 380 18 5 39 EM8 G3 022 EM8 P3 030 380 22 45 21 460 260 248 EM8 G3 030 EM8 P3 037 380 30 60 EM8 G3 037 EM8 P3 045 380...

Page 10: ...in 0 2 of max output frequency Digital Input Within 0 01 of setting output frequency External pulse Within 0 1 of max output frequency V F curve Voltage frequency character Base frequency can be set f...

Page 11: ...ng modes Include wobble frequency Built in PID control Common PID Expediently compose the simple control system without accessional PID controller Special for water supply Need accessories Make it pos...

Page 12: ...ltage electronic thermal protection over heat short circuit Operating Environ ment Temperature 10 C to 50 C Put down one grade capacity in 40 C 50 C Humidity Below 90 RH non dewing Ambient environment...

Page 13: ...568 590 297 5 312 5 M8 EM8 G3 075 EM8 P3 093 EM8 G3 093 EM8 P3 110 445 512 714 744 258 273 M8 EM8 G3 110 EM8 P3 132 EM8 G3 132 EM8 P3 160 515 583 760 793 300 315 M8 EM8 G3 160 EM8 P3 185 EM8 G3 185 EM...

Page 14: ...allation of many pcs inverters should be installed as diagram 2 5 and diagram 2 6 As in the same vertical direction and installation please note that application of diversion board Diagram 2 3 Inverte...

Page 15: ...250 50 50 1 G3 P3 090 250 70 70 1 G3 P3 110 315 70 70 1 G3 P3 132 400 95 95 1 G3 P3 160 630 120 120 1 G3 P3 185 630 150 150 1 G3 P3 200 630 150 150 1 G3 P3 220 630 150 150 1 G3 P3 250 800 150 150 1 G3...

Page 16: ...er diagram 2 6 Main circuit terminal explanation Diagram 2 9 Main circuit terminal 1 Series Suitable Inverter G1 EM8 G1 d75 EM8 G1 2d2 Terminal mark Function explanation L1 L2 Single phase 220V AC pow...

Page 17: ...ole PB The braking resistor connect between P and PB R S T Input three phase terminals connect with grid U V W Output three phase terminals connect with motor E Connect with earth terminal Diagram 2 1...

Page 18: ...nal of control circuit Diagram 2 14 Terminal of control circuit 1 Series Suitable Inverter G1 EM8 G1 d75 EM8 G1 2d2 Diagram 2 15 Terminal of control circuit diagram 2 Series Suitable Inverter G3 EM8 G...

Page 19: ...be as the input terminal of external pulse signal refer to the following diagram FWD FWD control command terminal The terminal is valid while being closed with COM terminal The close of terminals FWD...

Page 20: ...8 User s Manual 15 2 8 JP jumper explanation The 0 4KW to 4KW JP on PCB board as following diagram 2 16 Diagram 2 17 0 4KW 4KW Jumper The 5 5KW to 630 KW JP on PCB board as following diagram 2 17 Diag...

Page 21: ...will be valid after power off The factory setting is A 0 1 This intermediate control mode is suitable for most applications 3 2 2 Intermediate parameters When you set A 0 to 1 the inverter is under ba...

Page 22: ...displays the d or its corresponding parameters said parameter items 3 3 4 The revise mode of digital setting frequency Under Monitoring state mode user press or key to enter revise mode of digital set...

Page 23: ...function code and parameter Synchronously press key will quicken the codification speed of parameter First press key then press key will quicken the speed of modifying data Soften key will keep the c...

Page 24: ...cted value A 7 For example A 7 Acc time 1 Confirm the parameter item being modified Display the parameter value of A 7 5 0 Modify the parameter to the expected value 10 0 10 0 Confirm the parameter va...

Page 25: ...tting value to the expected value Digital setting frequency If digital setting frequency after modification are not stored into internal memory after power off the inverter will return State monitor c...

Page 26: ...voltage signal 2 4 External current signal 5 UP DW Acc and Dec control 6 External pluse signal 7 RS485 interface 8 Combination given 9 External terminal selection 1 0 01H A 2 Frequency digital setup...

Page 27: ...in 0 50 2 00 0 01 1 00 0CH A 13 Frequency output FM gain 0 10 5 00 0 01 1 00 0DH A 14 Analog output AO1 selection 0 AO output 1 0 10V 2 2 10V 3 0 20mA 4 4 20mA 1 3 0EH A 15 OC1 Output setting 0 In the...

Page 28: ...0 12H b 1 Torque boost 0 20 1 13H b 2 Torque boost mode 0 Manual 1 Auto 1 0 14H b 3 Upper limit frequency Lower limit frequency 500 0 Hz 0 01 50 00 15H b 4 Lower limit frequency 0 0 Upper limit freque...

Page 29: ...0 01 30 00 29H b 24 Multi speed frequency 7 0 00 Upper limit frequency 0 01 35 00 2AH b 25 Multi speed frequency 8 0 00 Upper limit frequency 0 01 40 00 2BH b 26 Multi speed frequency 9 0 00 Upper li...

Page 30: ...01 20 00 3EH b 45 Input adjustment coefficient 0 01 5 00 0 01 1 00 3FH b 46 Pulse input lower limit frequency 0 000KHz b 47 0 001 0 000 40H b 47 Pulse input upper limit frequency b 46 50 00KHz 0 01 1...

Page 31: ...ection terminal 1 10 Acc Dec time selection terminal 2 11 Freq ascending control UP 12 Freq descending control DW 13 Frequency setting channel selection terminal 1 14 Frequency setting channel selecti...

Page 32: ...equency compensation 0 150 1 0 5CH C 1 Over load over heat protection mode 0 Lock the output 1 Limit current running Alarm 1 0 5DH C 2 Motor over load protection 50 110 1 110 5EH C 3 Auto energy savin...

Page 33: ...6DH C 18 Step 2 running time 0 0 6000s 0 1 10 0 6EH C 19 Step 2 running direction 0 FWD 1 REV 1 0 6FH C 20 Step 2 Acc Dec time 0 1 6000s 0 1 10 0 70H C 21 Step 3 running time 0 0 6000s 0 1 10 0 71H C...

Page 34: ...ration time 2 0 1 6000s 0 1 86H C 43 Deceleration time 2 0 1 6000s 0 1 87H C 44 Acceleration time 3 0 1 6000s 0 1 88H C 45 Deceleration time 3 0 1 6000s 0 1 89H C 46 Acceleration time 4 0 1 6000s 0 1...

Page 35: ...tion gain 0 00 5 00 0 01 0 50 93H C 56 Integration time constant 0 1 100 0s 0 1 10 0 94H C 57 Differential gain 0 0 5 0 0 1 0 1 95H C 58 Sampling period 0 01 1 00s 0 01 0 10 96H C 59 Allowable deviati...

Page 36: ...1 100 A7H C 76 Suppress swing of analog input 0 30 1 3 A8H C 77 Braking unit usage 0 100 1 25 A9H C 78 Inverter address 0 30 1 0 AAH C 79 Data format 0 No parity check 1 Even parity check 2 Odd parit...

Page 37: ...tput AO 0 01V EDH d 19 Frequency output FM 0 01Hz EEH d 20 First fault record EFH d 21 Second fault record F0H d 22 Third fault record F1H d 23 Fourth fault record F2H d 24 Fifth fault record F3H d 25...

Page 38: ...ch is turned on and off frequently 1 Check the voltage of power 2 Control the on off of inverter by the control terminal Er 05 Over voltage in deceleration 1 Deceleration time is too short 2 Input vol...

Page 39: ...ce fan Er 12 Output grounded 1 The output terminal of inverter grounds 2 The wire is too long between inverter and motor and the carrier frequency is too high 1 Check the connecting wire 2 Shorten the...

Page 40: ...nstant pressure water supply mode 2 Purchase the accessory 3 Check whether the connection between main control panel and accessories is solid 4 6 Fault record inquiry This series of inverter record th...

Page 41: ...0 Panel potentiometer The running frequency input by potentiometer of panel 1 Panel digital setup The running frequency input by keys of panel 2 External voltage signal 1 The running frequency input b...

Page 42: ...is invalid 2 External terminal STOP key is valid 3 RS485 interface STOP key is invalid 4 RS485 interface STOP key is valid 0 The parameter is used to choose stop or start command channel 0 Panel comma...

Page 43: ...key will become reverse command key 2 Reverse prevented The inverter will only forward running Remark A 4 Setting is valid together with direction control of external terminals Code Name Description...

Page 44: ...nal voltage signal 2 10 External current signal 11 External pluse signal 0 A 11 Frequency output FM setting 0 The definition of analog output terminal AO and frequency output terminal FM 0 Inverter ou...

Page 45: ...AO has 5 kinds of output mode 0 Pulse output 1 0 10V analog output 2 2 10V analog output 3 0 20mA analog output 4 4 20mA analog output please refer to b 14 explanation for more details Code Name Desc...

Page 46: ...the external terminal AO output is 2 10V When A 14 set to 3 or 4 jumper JP3connection is as diagram Take off the jumper between AO and FM and use the jumper to connect AO terminal of JP3 of terminal o...

Page 47: ...cified value 16 Upper limit of pressure alarm 17 Lower limit of pressure alarm 0 A 16 OC2 Output setting 1 Definition open collector output terminal OC1 OC2 said OC output terminals of the internal wi...

Page 48: ...d signal high resistance Frequency level detection FDT is as shown in Diagram 5 8 Diagram 5 8 Frequency level detection FDT Remark The level of FDT is set by parameter b 59 A 0 0 fixed 10 0Hz The dela...

Page 49: ...ram 5 27 5 28 12 PLC end of running When the programmable multi step speed running cycle at the end the port output effective pulse signal of 0 5seconds width low level 13 Internal timer reaches the s...

Page 50: ...the output frequency is quadratic curve suitable for fan and water pump If the light load running is instable please switch to decreasing torque curves 1 V F curve as diagram 5 10 shown Diagram 5 10 V...

Page 51: ...frequency upper limit value in following description Code Name Description Factory setting b 4 Lower limit frequency 0 0 Upper limit frequency 0 50 b 5 Lower limit frequency running mode 0 Stop 1 Run...

Page 52: ...00Hz 0 50 Start frequency can be matched with the torque boost function and optimally adjust the starting torque characteristics but if the set value is too large sometimes over current fault Start Fr...

Page 53: ...define the frequency inverter in DC braking function of stopping when the inverter output frequency is lower than the starting frequency of DC braking inverter will automatically start the DC braking...

Page 54: ...y 8 0 0 Upper limit frequency 40 00 b 26 Multi speed frequency 9 0 0 Upper limit frequency 45 00 b 27 Multi speed frequency 10 0 0 Upper limit frequency 50 00 b 28 Multi speed frequency 11 0 0 Upper l...

Page 55: ...e factory setting X1 X2 X3 were Used for multi step speed control terminals The deceleration time of external terminal control section can be set separately respectively corresponding to Multi speed A...

Page 56: ...b 33 External running command mode selection 0 Two line control mode 1 1 Two line control mode 2 2 Three line control mode 0 Remark Only set external control A 3 1 2 this parameter is valid 0 Two lin...

Page 57: ...parameters are used to define the range of analog voltage input V2 according to input signal Input adjustment coefficient is used to adjust input voltage In the combinatorial set mode can change the c...

Page 58: ...frequency 0 0Hz b 50 inverter output reverse phase sequence Parameter b 42 set hysteresis loop width of phase sequence in zero voltage point Although inverter set to bipolar control mode the input upp...

Page 59: ...nput upper and lower limit set by parameter b 34 b 47 the minimal analog input corresponding setting frequency fmin means the corresponding setting frequency of analog input lower limit value the maxi...

Page 60: ...ir need to set the frequency inverter at run time set mostly want to see three monitoring states and can use Shift keys to switch between the three running states monitoring project Code Name Descript...

Page 61: ...nnel priority LED ten digit is defined as the first channel input form it was divided into analog channel and the digital channel this is seven forms 0 6 Analog channel 0 Potentiometer 1 External volt...

Page 62: ...1 Kx that is V1 terminal set frequency 0 324 00 When choose digital input parameter set 5 6 to choose channel 2 the relationship between pulse input and gain factor is as following diagram 5 22 Diagra...

Page 63: ...X1 0 28 0 Control terminal is idle 1 Multi speed control terminal 1 2 Multi speed control terminal 2 3 Multi speed control terminal 3 4 Multi speed control terminal 4 5 FWD Jog control 6 REV Jog cont...

Page 64: ...l counter reset terminal 21 Internal counter zero clearing terminal 22 Closed loop control failure 23 28 Reserve 29 Internal counter clock terminal 30 External pulse input Remark With external termina...

Page 65: ...vise the parameter please stop inverter Code Name Description Factory setting b 73 Parameter initialization 0 No action 1 Initialization action 2 Clear the fault records 0 This parameter is used to re...

Page 66: ...lower the current of the load and send out warning signal at the same time Remark Limit current mode is a protection measure of the inverter when there is overload overheat you can t set a current lev...

Page 67: ...failure If the inverter is in running state before a power failure when the power supply is restored the inverter will search the motor speed and restart in the waiting time set with C 5 During this w...

Page 68: ...d to set the max current in acceleration of the inverter which is called Stall Level During acceleration when the output current of the inverter goes over this parameter the inverter will adjust the a...

Page 69: ...13 Internal counter setting 1 60000 1 This parameter is used to control how the internal counter is working The timer of the counter is set with parameters b 68 and b 69 When the counter reaches the...

Page 70: ...3 running time 0 0 6000s 10 0 C 22 Step 3 running direction 0 FWD 1 REV 0 C 23 Step 3 Acc Dec time 0 1 6000s 10 0 C 24 Step 4 running time 0 0 6000s 10 0 C 25 Step 4 running direction 0 FWD 1 REV 0 C...

Page 71: ...ter the single cycle the inverter will keep running with the last step whose running time is non zero rather than stop Keep last step mode is shown as diagram 5 28 4 Swing frequency The inverter chang...

Page 72: ...ory setting C 36 Jump frequency 1 0 00 Upper limit frequency 0 00 C 37 Amplitude of jump frequency 1 0 00 5 00Hz 0 00 C 38 Jump frequency 2 0 00 Upper limit frequency 0 00 C 39 Amplitude of jump frequ...

Page 73: ...time 3 0 1 6000s C 45 Deceleration time 3 0 1 6000s C 46 Acceleration time 4 0 1 6000s C 47 Deceleration time 4 0 1 6000s Setting values for the 2nd 3rd and 4th acceleration time Actual acceleration...

Page 74: ...ature Code Name Description Factory setting C 49 Built in PID configuration channel selection 0 Panel potentiometer 1 Panel digital setting 2 External voltage signal 1 0 10V 3 External voltage signal...

Page 75: ...Name Description Factory setting C 52 Feedback channel gain 0 01 10 00 1 00 When the signal values mismatch between the feedback channel and the setting channel you can use this parameter to adjust s...

Page 76: ...pling period 0 01 1 00s 0 10 It is sampling period of feedback value Diagram 5 33 PID controller s structure Code Name Description Factory setting C 59 Allowable deviation 0 20 0 This parameter define...

Page 77: ...This setting should match the scale of the actually installed pressure meter Code Name Description Factory setting C 63 Alarm lower limit pressure 0 001 C 64 0 000 C 64 Alarm upper limit pressure C 63...

Page 78: ...etting and stopping a pump when the inverter s output frequency reaches lower limit setting If set to a small value the system pressure may fluctuate greatly while respond rapidly Code Name Descriptio...

Page 79: ...r according to your actual condition When there is no need for accurate braking you can set a lower usage value otherwise set a higher value Remark This parameter is valid for models under ZC G 11KW a...

Page 80: ...o 0 10 10 00 1 00 This parameter is used to define the weight coefficient for the inverter to receive frequency commands via RS485 interface The actual running frequency of the inverter equals to this...

Page 81: ...Noise 3 Wire terminal 1 Steady vibration normal temperature of air outlet 2 No unusual noise and odors 3 Tighten the screws without loose motor 1 Vibration temperature 2 Noise 1 Running smoothly norm...

Page 82: ...urrent in the main circuit affect the performance of aluminum electrolytic filtering capacitor Extent of the effect is related to ambient temperature and service conditions In common cases the electro...

Page 83: ...used by Followings we are not responsible for the applications 1 Not according to the manual beyond the standard specification 2 Without allowed fix or refit the inverter yourself 3 Incorrect storage...

Page 84: ...ockwise swirl panel potentiometer knob set frequency will gradually decrease Press STOP the frequency inverter will stop Remark The external terminal FW decide the motor running direction FWD COM disc...

Page 85: ...closed frequency inverter stop 7 3 External control mode external voltage setting frequency 7 3 1 Parameter settings According to the motor rated nameplate data the parameter A 5 A 6 for parameter set...

Page 86: ...ing instructions FWD COM closed the motor forward run forward command REV COM closed the motor reverse run reverse command FWD COM REV COM together closed or open frequency inverter stop X1 X2 X3 all...

Page 87: ...e linkage control of many frequency inverter Group Control 7 6 1 To use external voltage to realize many sets of inverter linkage control 7 6 1 1 Parameter Setting According to the motor rated namepla...

Page 88: ...y external voltage signal 1 V1 panel potentiometer input signal The type show that external voltage signal 10V signal is same when change panel potentiometer signal input the table of the frequency in...

Page 89: ...s shown in diagram 7 7 shows 7 6 2 3 Operating instructions Just click on the master inverter host to start stop and JOG control and frequency setting all other inverter slave station running will str...

Page 90: ...e loop control system show as diagram 7 8 Diagram 7 8 Frequency inverter constitute a close loop control system 7 8 Use upper computer PC control many sets frequency inverters 7 8 1 Parameter settings...

Page 91: ...titutes a system with frequency inverter PC can always control the working conditions of each frequency inverter and a timely response Channel V1 used for manual adjustment applied voltage VO 10 v adj...

Page 92: ...5 1 5 0 3 400 100 EM8 G3 1d5 EM8 P3 2d2 1 5 2 2 0 3 400 100 EM8 G3 2d2 EM8 P3 004 2 2 4 0 5 250 100 EM8 G3 004 EM8 P3 5d5 4 5 5 0 8 150 100 EM8 G3 5d5 EM8 P3 7d5 5 5 7 5 1 2 100 100 EM8 G3 7d5 EM8 P3...

Page 93: ...erface type RS485 RS232 is optional but it needs conversion accessory at same electrical level 2 Transmission mode For asynchronous serial and half duplex transmission at the same time only one from m...

Page 94: ...e transmit time of 8 bytes It is judged to failure due to timeout 4 The polling from the master to the slave can be built in a table defined by the user The user can define the order of polling accord...

Page 95: ...4 1 Frame header 1 Start bit This communication protocol provides The start bit of every message is 5AH But the start bit itself is not sufficient for the start of recognizing message Because the 5AH...

Page 96: ...master The value is any value in the range of the parameter value when the command code is 0 or 1 no task or reading the parameter data To the slave the parameter value is the returned parameter data...

Page 97: ...yte upper byte is behind Running word upper computer inverter Bit Meaning Function description 0 Reserve 1 Normal running 1 Make a normal running command to the slave inverter 0 Invalid 2 Reversal run...

Page 98: ...ction 1 The voltage limiting function of inverter is acting 0 The voltage limiting function of inverter is not acting 14 JOG running 1 Inverter is in the state of inching running 0 Inverter is not in...

Page 99: ...erter to 60 00Hz parameter A 6 Master sending frame Start bit Slave address Master command Encoding address Parameter value Running word Setting frequency value Check sum 5A 00 03 06 7017 1200 00 00 F...

Page 100: ...e communication of the slave occurred error do not execute master command The present state of slave is negative phase sequence with normal DC voltage Now the actual frequency is 0Hz Example 5 set the...

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