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User Manual
EM303A General Purpose Inverter

119

8 Autotuning Motor Parameters

8.1 Autotuning Motor Parameters

Autotuning motor parameter is required when the inverter is in vector control mode.
However, if the inverter is not in vector control mode, autotuning is also suggested for
acquiring higher control precision at initial operation.

Generally, it is not easy for user to obtain the motor parameters that are needed for
calculation in vector control mode such as stator resistance R1, rotor resistance R2,
stator and rotor inductance L, stator and rotor leakage inductance Ls, idling excitation
current. EM303A provides autotuning function. After the function start-up, inverter
automatically tests the relevant parameters of connected motor and saves them to the
EEPROM.

The T equivalent model of motor is as shown in Figure 8-1.

Figure 8-1 T Equivalent Model of 3-phase AC Induction Motor

R1, L1, R2, L2, Lm, and I0 in Figure 8-1 refers to stator resistance, stator inductance,
rotor resistance, rotor inductance, stator and rotor mutual inductance, and idling
excitation current respectively. Leakage inductance Ls=L-Lm.

8.2

Precautions Before Autotuning

z

Autotuning is a process of autotuning motor parameters. EM303A can autotune
motor parameters in 2 modes: stationary autotuning and rotational and
rotational autotuning.

Stationary autotuning is applied to the occasions when the motor cannot be

disconnected from the load, inverter can obtain motor parameters.

Rotational autotuning is applied to the occasions when the motor can be

disconnected from the load. Before autotuning, the motor should be
disconnected from the load. Never perform rotational autotuning for a motor
with load.

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Содержание EM303A-011G/015P-3CB

Страница 1: ...PWL pulse output F R logic output and delay output and etc 5 Analog input signals VS IS VF IF can be programmed as numeric inputs numeric terminals expansion control achieved 6 With filtering analog...

Страница 2: ...re with this inverter Verifying Product upon Delivery Caution 1 Never install an inverter that is damaged or missing components Failure to comply can result in injury z Installation Caution 1 Always h...

Страница 3: ...the rated voltage of inverter Otherwise it may result in injury and fire 2 Never perform voltage withstanding test Otherwise semi conductors and other devices can be damaged 3 Connect braking resisto...

Страница 4: ...erter is running Otherwise the inverter will be damaged 4 Be careful when editing inverter settings The inverter is in factory default Otherwise the inverter will be damaged z Maintenance and Inspecti...

Страница 5: ...an be destroyed by ESD if touched directly with bare hands 2 Do not check signals while the inverter is running Otherwise the inverter will be damaged z Other Danger 1 Never attempt to modify or alter...

Страница 6: ...OF INSTALLATION 21 2 5 DISASSEMBLY AND ASSEMBLY OF KEYPAD 22 3 WIRING 24 3 1 CONNECTIONS TO PERIPHERALS 24 3 2 WIRING MAIN CIRCUIT TERMINALS 25 3 3 WIRING CONTROL CIRCUIT TERMINALS 32 3 4 EXTENDING KE...

Страница 7: ...TOMATIC TORQUE BOOST AND SLIP COMPENSATION 121 9 TROUBLESHOOTING 123 9 1 FAULTS 123 9 2 FAULT ANALYSIS 125 10 MAINTENANCE AND INSPECTION 128 10 1 MAINTENANCE AND INSPECTION 128 10 2 DAILY INSPECTION 1...

Страница 8: ...Output Current A Overall Dimensions Wire Size m2 1 Phase AC220V EM303A 1R1 1CB 1 1 6 2 The same as EM303A 2R2G 3R0P 3CB 2 5 EM303A 1R5 1CB 1 5 8 0 4 EM303A 2R2 1CB 2 2 10 0 4 EM303A 3R0 1CB 3 0 13 The...

Страница 9: ...303A 011G 015P 3CB 11 26 EM303A 015G 018P 3CB 15 34 EM303A 018G 022P 3C 18 5 41 EM303A 022G 030P 3C 22 48 EM303A 030G 037P 3C 30 60 EM303A 037G 045P 3C 37 75 EM303A 045G 055P 3C 45 90 EM303A 055G 075P...

Страница 10: ...brake current 0 100 rated current Signal Input Source Communication analog voltage analog current preset speed simple PLC and their combinations Special Function Control Textile Wobbulation Realize te...

Страница 11: ...ple PLC Program operation is that inverter finishes specified control logic according to the mode and time set in the program Program operation is categorized as speed program operation torque program...

Страница 12: ...ulate its output voltage for energy saving purpose 1 2 10 Constant Power Output With the same load output current will increase as the input voltage of inverter decreases Meanwhile if constant power o...

Страница 13: ...arameter Copy All function parameters of EM303A can be copied through keypad 1 2 20 Programmable Displayed Information Monitoring codes C0 00 C0 31 of EM303A can be displayed by setting program 1 2 21...

Страница 14: ...and inverter automatically traces load variables and limit output current to make it not exceed the maximum value Even if there is sudden load change quick acceleration or deceleration inverter will...

Страница 15: ...User Manual EM303A General Purpose Inverter 15 Figure 1 1 Speed Setting Modes...

Страница 16: ...User Manual EM303A General Purpose Inverter 16 Figure 1 2 Torque Input Modes...

Страница 17: ...d 3 wire sequence The setting details and control logic of these three modes are shown in the description of function parameters F0 04 and F0 05 in 7 1 1 4 EM303A Outlook See Figure 1 3 for the outloo...

Страница 18: ...able 2 1 Check List Item Action If the products are identical to the purchase order Check the devices reference marked on the label Any part damaged Check the outlook if any damages Any screw loosened...

Страница 19: ...in Figure 2 1 and Table 2 2 The keypad can be installed on the metal panel separately with a hole size of 116 5 0 1 L 71 5 0 1 W mm and applicable panel thickness 1 2 2 0mm 71 74 118 26 34 116 8 58 7...

Страница 20: ...5P 3C EM303A 055G 075P 3C 390 300 695 665 635 250 200 259 12 c EM303A 075G 090P 3C EM303A 090G 110P 3C 560 400 828 803 775 355 255 364 12 c EM303A 110G 132P 3C EM303A 132G 160P 3C EM303A 160G 185P 3C...

Страница 21: ...3 2 Ambient Temperature Install inverter in a place with good ventilation to improve the reliability of inverter operation When inverter is mounted inside a cabinet cooling fan or air conditioner is...

Страница 22: ...ve the front cover For EM303A 7R5 or below push the cover vertically from the bottom with two hands and then lift up outwards See Figure 2 3 Figure2 3 Remove the Front Cover z Disassemble the keypad P...

Страница 23: ...User Manual EM303A General Purpose Inverter 23 Figure 2 4 Disassemble the Keypad Figure 2 5 Assemble the Keypad...

Страница 24: ...User Manual EM303A General Purpose Inverter 24 3 Wiring 3 1 Connections to Peripherals Connections between EM303A and its peripherals are shown in Figure 3 1 Figure 3 1 EM303A Peripherals Connections...

Страница 25: ...lock of EM303A 015 or below U V W R S T b Main Circuit Terminal Block of EM303A 018 075 R S T POWER U V W MOTOR c Main Circuit Terminals of EM303A 090 or above Figure3 2 Main Circuit Terminal Block Re...

Страница 26: ...for connecting to external braking unit PB Connecting terminals of braking resistor one end connected to and the other to PB Grounding terminals 3 2 3 Standard Wiring of Main Circuit See Figure 3 3 f...

Страница 27: ...n be controlled by the electromagnetic contactor on input side Inverter may break down if the electromagnetic contactor is on and off frequently The operation interval between start and stop of the in...

Страница 28: ...se produced by the inverter zA special purpose noise filter is required for the inverter zCorrect vs incorrect installations of noise filters as shown in Figure 3 5 and Figure 3 6 Figure 3 5 Correct N...

Страница 29: ...tor to the output circuit Otherwise failure to comply will cause overcurrent or overvoltage protection Even worse inverter will be damaged Make sure that the inverter stops before installing electroma...

Страница 30: ...wn in Figure 3 9 Figure 3 9 Countermeasures Against RFI Cable Length Between Inverter and Motor The longer cable between the inverter and motor is the higher carrier frequency is and the greater high...

Страница 31: ...90P 3C M10 17 0 22 0 60 EM303A 090G 110P 3C M10 17 0 22 0 60 EM303A 110G 132P 3C M10 17 0 22 0 90 EM303A 132G 160P 3C M10 17 0 22 0 90 EM303A 160G 185P 3C M12 31 0 39 0 120 EM303A 185G 200P 3C M12 31...

Страница 32: ...g cable should m he distance to groundi grounding cable as a ronously See Figur s Figure 3 10 Grou Resistor and Brakin for more details abo ng unit Circuit Terminals Terminals minals of EM303A ar nals...

Страница 33: ...ply PLC Multi function input common terminal Common terminal for external connection with 24V The default is to connect with 24V supply Relay Output EA Relay output terminal EA EC NO EB EC NC EB EC Mu...

Страница 34: ...ls IS and IF through analog current signal Figure 3 13 Wiring of Terminals IS and IF 3 3 2 2 Wiring Multi function Input Terminal The multi function input terminals of EM303A adopt full bridge rectifi...

Страница 35: ...2 4 Wiring Multi function Output Terminal Multi function output terminals Y1 and Y2 can take 24V internal power supply of inverter or external power supply as shown in Figure 3 14 a Internal power sup...

Страница 36: ...externally 0 5 1mm2 cable as the control circuit cable should be the best There are two types of control circuit wiring terminals for EM303A clamp terminal and barrier terminal install them with a PH...

Страница 37: ...eral Purpose Inverter 37 3 3 5 Standard Control Circuit Wiring See Figure 3 17 for standard control circuit wiring of EM303A Figure 3 17 Standard Control Circuit Wiring of EM303A Remarks EM303A 055 or...

Страница 38: ...wing the method as shown in Figure 3 18 If the extension wire exceeds 10m a remote control keypad is required If the keypad wire is also a control circuit wire wiring precautions as stated in 3 3 4 R...

Страница 39: ...ction Left Shift Select the bit of setting parameters Select the row of monitoring parameter in operation Reset Escape Reset previous status Escape from editing the present parameter Button for Multi...

Страница 40: ...ode Key Function Function Setting 1 Display edit save reset and lock the function code and its parameters 2 Reset default of the parameters 3 Select relevant parameter when the inverter is running Fun...

Страница 41: ...with inverter 2 When power is on normal display on control panel no alarming 3 Turn off the power immediately if any emergency and check as per the instruction in Chapter 9 Parameter Setting After the...

Страница 42: ...tem when connected to load 3 Turn off the power immediately if anything unexpected Normal Operation Basic Operation Inverter can conduct basic operation such as normal start operation stop forward rev...

Страница 43: ...eypad See Chapter 9 if anything unexpected displayed on keypad 5 2 3 Idling Operation When motor is idling without mechanical load the inverter is in keypad or terminal control mode try to run the mot...

Страница 44: ...screw to locate the mechanical load onto the motor shaft Starting up the Inverter 1 Start up the inverter in the same way as that in idling operation 2 Set the frequency about 1 10 of the normal runn...

Страница 45: ...er The 3rd column is the range of parameter The 4th column is the parameter unit The 5th column is the parameter default For instance XXX represents that the parameter default varies with the power ra...

Страница 46: ...ypad 1 Terminal 2 RS485 0 F0 05 Terminal Start Stop Control Selection 0 RUN Run F R Forward Reverse 1 RUN Forward F R Reverse 2 RUN NO forward Xi NC stop F R NO reverse 3 RUN NO run Xi NC stop F R For...

Страница 47: ...e Options 0 Ramp to stop 1 Coast to stop 0 F0 21 Function Setting for JOG button 0 Jog running 1 Positive Negative input switching 2 Disabled 0 F0 22 Speed Monitoring Options 0 Frequency Hz 1 Speed rp...

Страница 48: ...XXX F1 15 Autotuning Parameters 0 No autotuning 1 Staionary autotuning 2 Rotational autotuning 0 F1 16 Inverter Address 0 247 0 Broadcasting Address 1 F1 17 Communication Bit Rate 0 4800 1 9600 2 1920...

Страница 49: ...fining 0 F2 10 VF Input Function Defining 0 F2 11 IF Input Function Defining 0 F2 12 Multi function Output Terminal Y1 See Table 6 2 Functions of Numeric Multi function Output Terminals 0 F2 13 Multi...

Страница 50: ...etting 9 Coast to Stop 37 PID Positive Negative Setting Switch 10 Inverter Fault Reset 38 Preset Process PID Terminal 1 11 Forward Jog FJOG 39 Preset Process PID Terminal 2 12 Reverse Jog RJOG 40 Pres...

Страница 51: ...o Speed Detection Residual Voltage Frequency Detection 5 Output Frequency Detection Range FDT2 Disabled at JOG 22 Motor 2 Enabled 6 Forward Reverse Enabled at running 23 Setting running time is up 7 F...

Страница 52: ...dback Frequency Fmax 14 10V 10V 4 Estimated Feedback Frequency Fmax 15 PID Input 10 00V 5 Estimated Slip Frequency Fmax 16 PID Feedback 10 00V 6 Output Current Inverter Rated Current 17 Torque Current...

Страница 53: ...0 00 F3 15 Acceleration Time 2 0 00 600 00 S min 15 00 F3 16 Deceleration Time 2 0 00 600 00 S min 15 00 F3 17 Acceleration Time 3 0 00 600 00 S min 15 00 F3 18 Deceleration Time 3 0 00 600 00 S min 1...

Страница 54: ...tive Setting 0 F4 06 PID Output Gain 0 00 100 00 100 00 F4 07 Proportion Gain GP 0 00 100 00 0 40 F4 08 Integration Time GTi 0 000 30 000 0 000 No Integration S 10 000 F4 09 Differentiation Time GTd 0...

Страница 55: ...operation 0 831 512 F4 21 Parameters displayed in the 2nd row in operation 0 831 514 F4 22 Parameters displayed in the 3rd row in operation 0 831 524 F4 23 Parameters displayed in the 4th row in oper...

Страница 56: ...n Time ASR_Ti2 0 000 30 000 0 000 No Integration S 0 200 F5 05 Switching Frequency 0 0 00 Switching Frequency 1 Hz 5 00 F5 06 Switching Frequency 1 Switching Frequency 0 Fmax Hz 5 00 F5 07 Torque Curr...

Страница 57: ...Preset Torque Current 5 0 00 150 00 80 00 F5 20 Preset Torque Current 6 0 00 150 00 90 00 F5 21 Preset Torque Current 7 0 00 150 00 100 00 F5 22 Positive Negative Torque Control 0 Positive Negative T...

Страница 58: ...ge Percentage 0 00 100 00 526 C0 15 Effective Output Voltage Value 0 0 660 0 V 527 C0 16 DC Bus Voltage 0 1200 V 528 C0 17 Overload Count 0 00 100 00 529 C0 18 Not Used C0 19 Program Operation Section...

Страница 59: ...EEU Keypad EEPROM failure STP Autotuning cancelled SFE Autotuning coast to stop SrE Stator resistance error SIE Idling current error INP Internal failure 0 E0 01 Output Frequency at Fault XX XX XX X...

Страница 60: ...ult XXXX V 0 0 E0 20 Running Direction at Fault FOr Forward rEV Reverse 0 E0 21 Running Status at Fault ACC Acceleration CON Constant Speed dEC Deceleration 0 E0 22 Stall Status at Fault 0 Normal UL O...

Страница 61: ...ntinuous cycle Thousands place Options of restart after operation stopped 0 Restart from the section when it stops 1 Restart from Preset Speed 1 Ten thousands place Program operation time unit 0 S 1 m...

Страница 62: ...Hz 0 00 F6 20 Skip Frequency Point 3 0 00 600 00 0 0 6000 0 Hz 600 00 F6 21 Skip Range 3 0 00 20 00 0 0 20 0 0 00 0 0 Disabled Hz 0 00 F6 22 F6 23 Not used F6 24 Wobbulation Operation Mode Ones place...

Страница 63: ...7 09 Analog ADT3 0 00 100 00 80 00 F7 10 Analog ADT3 Hysteresis 0 00 100 00 Monotonic decreasing is active 5 00 F7 11 Jog M0 Output Lower Limit 0 00 100 00 0 00 F7 12 Jog M0 Output Upper Limit 0 00 10...

Страница 64: ...ds place IF current options 0 4 20mA 1 0 20mA 0000 F8 01 Voltage Current Bias Options Ones place VS voltage bias options 0 Input output bias 0 1 Input output bias 1 2 Input output bias 2 Tens place VF...

Страница 65: ...Bias 0_3 75 00 F8 15 Input Bias 0_3 Input Bias 0_2 100 00 100 00 Input Output Bias 1 F8 16 Output Bias 1_0 0 00 100 00 0 00 F8 17 Output Bias 1_1 0 00 100 00 25 00 F8 18 Output Bias 1_2 0 00 100 00 7...

Страница 66: ...keypad 1 Editable through UP DOWN terminals 2 Interrelate with start stop mode F0 04 0 editable through UP DOWN button on keypad F0 04 1 editable through UP DOWN terminals 3 Editable in both modes 4 N...

Страница 67: ...2 K3 VS K4 IS K5 VF K6 IF K8 5V 0 F9 06 Auxiliary Numeric Frequency Setting 0 00 Fmax 0 0 Fmax Hz 0 00 F9 07 UP DOWN Frequency Rate 0 00 100 00 0 0 100 0 Hz S 1 00 F9 08 Regular Speed Setting Mode Spe...

Страница 68: ...shold 0 00 Fmax 0 0 Fmax Hz 30 00 F9 16 Not Used F9 17 Power Failure Stop Control Options 0 Disabled not stop at power failure 1 Enabled stop at running 0 F9 18 F9 20 Not Used F9 21 Deceleration Time...

Страница 69: ...ting mode 2 Primary torque setting mode Auxiliary torque setting mode Hundreds place Auxiliary positive negative torque options 0 Positive torque 1 Negative torque 000 FA 01 Special Mode 0 Program ope...

Страница 70: ...rrent Limit 2 0 00 180 00 165 00 FA 09 Preset Current Limit 3 0 00 180 00 165 00 FA 10 Preset Current Limit 4 0 00 180 00 165 00 FA 11 Preset Current Limit 5 0 00 180 00 165 00 FA 12 Preset Current Li...

Страница 71: ...Gain Upper Limit 100 00 300 00 200 00 Fb 09 Feedforward Initial Gain GFK 0 00 Feedforward input gain upper limit 40 00 Fb 10 PID Output Deadband Time 0 00 100 00 S 0 00 Fb 11 PID Soft start Time 0 00...

Страница 72: ...Energy saving operation disabled 1 Energy saving operation enabled 0 FC 11 Energy Saving Running Initial Frequency 10 00 600 00 10 0 600 0 Hz 20 00 FC 12 Energy Current Detecting Range 20 00 80 00 40...

Страница 73: ...00 100 00 1 00 FC 23 Overvoltage Integration Time VTi 0 000 30 000 0 000 No integration S 0 200 FC 24 Fault Retry Control Ones place Fault retry times 0 Fault retry prohibited 1 3 Fault retry for 1 2...

Страница 74: ...Frequency 1 Frequency 3 4 00 Fd 07 Frequency 3 Frequency 2 Frequency 4 10 00 Fd 08 Frequency 4 Frequency 3 100 00 16 00 Fd 09 Fd 20 Not Used Fd 21 Inverter Rated Power 0 40 480 00 kW XXXX X Fd 22 Inv...

Страница 75: ...al options 0 Analog signal input 1 Numeric signal input Hundreds place VF input signal options 0 Analog signal input 1 Numeric signal input Thousands place IF input signal options 0 Analog signal inpu...

Страница 76: ...gic 000 FE 08 Virtual Terminal Options Ones place Terminals Y1 Y2 R1 0 Actual output terminal on 1 Virtual output terminal on Tens place Multi function Input Terminal Xi 0 Actual output terminal on 1...

Страница 77: ...1 is which indicates that the present control object is the torque of motor The value is the percentage of present objective torque current in motor rated torque current If the objective value is nega...

Страница 78: ...s mode V F open loop control status can be switched to meet different drive needs through multi function input terminals X1 X7 See 7 3 for program mode of multi function input terminals For example se...

Страница 79: ...tatus but when it flashes the inverter is in ramp to stop status No matter the setting input control mode is speed or torque JOG is always running in jog speed input control mode F0 04 1 Terminal Cont...

Страница 80: ...f terminals F R and RUN are ON simultaneously the inverter stops according to the setting mode When reverse is prohibited terminal F R is off When stop mode is selected as ramp to stop the sequence di...

Страница 81: ...X1 X7 is defined as the terminal of 3 Wire Sequence Run Stop Control by F2 00 F2 06 F0 05 3 F R is forward reverse switching button Forward when F R is off and reverse when F R is on RUN is NO runnin...

Страница 82: ...uency is set by the current of analog terminal IS F0 06 4 Not used F0 06 5 Setting frequency is set by K3 VS K4 IS Input signals VS and IS F0 06 6 Setting frequency is set by K3 VS K5 VF Input voltage...

Страница 83: ...R is on then inverter runs forward 2 Switch any two of output cables U V and W of inverter to make the inverter forwards in the same direction as the expected running direction of motor or set F0 08 1...

Страница 84: ...unction Range Unit Default Type F0 14 Carrier Frequency 1 000 16 000 kHz 2 000 Increasing carrier frequency could reduce motor noise but it will result in inverter heating up When carrier frequency is...

Страница 85: ...quency upper limit frequency and lower limit frequency 0 00Hz Fdown Fup Fmax 600 00Hz No Function Range Unit Default Type F0 19 Start Mode Options 0 Normal start 1 Speed search start 0 F0 19 0 Start a...

Страница 86: ...inverter will not restart only if regiving the run command No Function Range Unit Default Type F0 21 Function Setting for JOG button 0 Jog running 1 Positive Negative input switching 2 Disabled 0 F0 2...

Страница 87: ...speed setting mode is regular speed setting mode Primary numeric speed setting mode or analog signal setting mode can be set by selecting parameter of F0 06 F0 26 1 Primary speed setting mode is speci...

Страница 88: ...12 and preset torque setting 1 7 F5 15 F5 21 F0 29 2Parameter locked 1 Lock all parameters except F0 29 Inverter will remain the setting before unlocked No Function Range Unit Default Type F0 30 Inver...

Страница 89: ...tor Rotor Mutual Inductance Lm 0 1 3000 0 mH XXXX F1 08 F1 13 are motor parameters autotune motor parameter to obtain the above parameters Before autotuning motor parameter inverter will set the namep...

Страница 90: ...t Rate 0 4800 1 9600 2 19200 3 38400 bps 1 F1 17 0 Communication Bit Rate 4800bps F1 17 1 Communication Bit Rate 9600bps F1 17 2 Communication Bit Rate 19200bps F1 17 3 Communication Bit Rate 38400bps...

Страница 91: ...efault Type F1 30 Communication Overtime 0 Disabled 0 1 60 0 S 0 When exceeding the setting time of F1 30 inverter will stop if it does not receive the communication command from PC PLC Keypad display...

Страница 92: ...F0 10 F3 15 F3 20 set acceleration deceleration time 1 4 and select corresponding acceleration deceleration time 1 4 through programming acceleration deceleration terminals See 7 4 for the correlation...

Страница 93: ...ime of DC brake is active select the greater value between them to perform DC brake command at stop See F3 24 F3 27 for detail of DC brake setting at stop See 7 4 Xi 20 Switch drive control mode to V...

Страница 94: ...ng mode Its function is equivalent to setting the ones place of F9 03 1 After the terminal is off it returns the previous setting mode automatically Xi 29 Switch primary speed setting mode to regular...

Страница 95: ...de to regular mode After it is off it returns the previous setting mode automatically Its function is equivalent to Fb 00 0 Xi 37 PID positive negative function switch In the process of process PID co...

Страница 96: ...3 F5 17 ON OFF OFF Preset Torque Current 4 F5 18 ON OFF ON Preset Torque Current 5 F5 19 ON ON OFF Preset Torque Current 6 F5 20 ON ON ON Preset Torque Current 7 F5 21 Xi 44 Preset current limit termi...

Страница 97: ...Function Range Unit Default Type F2 12 Multi function Output Terminal Y1 See Table 6 2 Functions of Numeric Multi function Output Terminals 0 F2 13 Multi function Output Terminal Y2 1 F2 14 Relay Outp...

Страница 98: ...6 In jog running mode outputs of M0 and M1 can be defined differently from what they are in normal operation mode No Function Range Unit Default Type F2 22 M0 Output Lower Limit 0 00 100 00 0 00 F2 2...

Страница 99: ...t Speed 15 0 00 Fmax 0 0 Fmax Hz 50 00 Through preset speed control terminals and 15 preset frequency commands EM330 can provide 16 preset speeds by combining keypad numeric setting mode and analog se...

Страница 100: ...600 00 S min 15 00 Acceleration time is the time taken for output frequency to rise from 0Hz up to the maximum frequency Fmax set by F0 16 Deceleration time is the time taken for output frequency to...

Страница 101: ...etting frequency as per setting direction F3 22 Different setting values can define different DC brake torques at start When the parameter 30 00 the percentage base is the rated output voltage of inve...

Страница 102: ...enabled after the time set by F3 26 is up F3 27 Set DC brake time at stop If F3 27 0 00 the DC brake is disabled at stop 1 If there is a stop DC brake signal of external terminal then the stop DC brak...

Страница 103: ...sure water supply air compressor and etc See Figure 7 12 for lower limit frequency control F3 28 0 F3 28 1 Figure 7 12 Lower Limit Frequency Control No Function Range Unit Default Type F3 30 Open Loop...

Страница 104: ...and feedback signal PID controller computes the control variables with proportion integration and differentiation The characteristics of each computing factor are as follows Proportion P Proportional...

Страница 105: ...Figure 7 13 Function of PID Control EM303A PID Control Logic Control logic of internal process PID of EM303A is as shown in Figure 7 14 Through PID close loop control an inverse feedback control syst...

Страница 106: ...nalog Output Input Bias Maximum Limit Feedforward Input Mode Selection Propotional Gain Differentiation Time Control VVVF F4 10 F4 07 F4 06 F4 09 Fb 12 F4 08 F4 02 F4 05 F4 03 M C0 23 PID Regulator Po...

Страница 107: ...ic PID Setting 1 VS 2 IS 3 VF 4 IF 5 VP 0 F4 01 PID Numeric Setting 0 00 10 00 V 5 000 Setting Channel Options F4 00 0 Numeric PID setting Input PID setting value by editing F4 01 parameters through k...

Страница 108: ...and etc will be displayed on keypad The physical quantity value PID setting feedback value 0 10 00V display coefficient 1 Only when F4 03 is set as the displayed actual physical quantity i e F4 03 1 F...

Страница 109: ...10 Integration function scale When error between PID setting value and feedback is greater than the setting value there is no integral operation Setting value of F4 10 PID setting value Feedback Sett...

Страница 110: ...Freq 1111 1111 0 0 1 1 1 1 1 1 0 Absolute Value 1 Bit setting value 0 Monitoring frequency shows absolute value when motor forwards reverses Bit setting value 1 Monitoring frequency shows positive ne...

Страница 111: ...tus For example when inverter stops the parameter displayed on keypad The setting value is corresponding to the value in Group C0 No Function Range Unit Default Type F4 20 Parameters displayed in the...

Страница 112: ...ed proportional gain is too big speed integration time is too little or speed differentiation time is too much all of which will result in big system overshoot so that oscillation occurs User should r...

Страница 113: ...limit frequency of torque control inverter always runs as per upper limit frequency and when the setting torque of inverter is less than the load torque the output frequency drops No Function Range U...

Страница 114: ...rque Setting 0 Primary Numeric Torque Setting 1 VP 2 VS 3 IS 4 VF 5 IF 6 Not Used 7 K1 VP K2 K3 VS K4 IS K5 VF K6 IF K8 5V 0 F5 12 Primary Numeric Torque Current 0 00 150 00 0 00 F5 13 Torque Directio...

Страница 115: ...the motor speed threshold in torque control mode When the motor reaches the speed threshold torque current is determined by the load torque but beyond control of the torque current setting value i e t...

Страница 116: ...ue direction z If positive negative torque switching is applied in torque program operation mode it cannot be switched by terminals No Function Range Unit Default Type F5 24 Torque Current Gain TP1 0...

Страница 117: ...on the output voltage and output current 520 Hz C0 09 C0 10 Estimated Slip Frequency Inverter calculates present slip frequency based on the output voltage and output current 522 Hz C0 11 C0 12 Outpu...

Страница 118: ...ent torque current input setting value 536 C0 25 Torque Current Feedback Iq Present output torque current value 537 C0 26 Input Terminal Status X7 X6 X5 X4 X3 X2 X1 538 0 0 0 0 0 0 0 X1 is the LSB Mon...

Страница 119: ...or and saves them to the EEPROM The T equivalent model of motor is as shown in Figure 8 1 Figure 8 1 T Equivalent Model of 3 phase AC Induction Motor R1 L1 R2 L2 Lm and I0 in Figure 8 1 refers to stat...

Страница 120: ...power factor Configure the inverter with an applicable Y series motor and the defaults of inverter can meet most of needs z To ensure control performance the motor and the inverter should match in ter...

Страница 121: ...the motor slippage increases and motor speed drops Motor can keep constant speed with help of slip compensation and automatic torque boost 8 4 1 Automatic Torque Boost Automatic torque boost F0 15 0...

Страница 122: ...cording to the following methods z F3 30 0 00 200 00 the slip compensation intensity can be continuously set within 0 00 200 00 of the motor rated slippage scale 0 00 indicates motor slip compensation...

Страница 123: ...orque boost is too big 4 The motor is rotating when inverter starts 5 The capacity of motor exceeds that of inverter 1 Check take corrective actions and then reset 2 Prolong acceleration deceleration...

Страница 124: ...rite mistakes 2 EEPROM is damaged 1 Press STOP RESET button to reset and then retry 2 Technical support is required EEU Keypad EEPROM Failure STP Autotuning Cancelled 1 During autotuning press STOP RE...

Страница 125: ...f Status combination of run command input is in terminal control mode Change it to keypad control mode Setting reference input frequency 0 Increase reference input frequency Power supply is abnormal o...

Страница 126: ...is too long please check its parameters 9 2 5 Inverter Overheating z Excessively heavy load Heavy load makes inverter work beyond its rated current for a long time The power of inverter shall be appl...

Страница 127: ...p frequency F6 16 F6 21 and its range to avoid resonant frequency or use oscillation suppression function F9 27 or install the shake proof rubber on the chassis of motor or any other shake proof measu...

Страница 128: ...or should not be overheating z The ambient temperature should not be too high z The output current value shown on the monitoring displays should not be higher than normal value z The cooling fan at th...

Страница 129: ...tor 4 5 Years PCBA 5 8 Years The standard replacement period is based on the following application conditions z Ambient temperature Yearly average of 30 z Load factor 80 maximum z Operation rate 12 ho...

Страница 130: ...ad extension wire exceeds 10 meters it is required to use the special remote operation keypad in case of signal disorder caused by line loss z When keypad extension wire exceeds 10 meters please take...

Страница 131: ...75 360 200 1 EM303A 1R1 3CB 1 1 360 200 1 EM303A 1R5 3CB 1 5 180 400 1 5 EM303A 2R2 3CB 2 2 180 400 1 5 EM303A 3R0 3CB 3 0 180 400 1 5 EM303A 4R0 3CB 4 0 90 800 2 5 EM303A 5R5 3CB 5 5 60 1000 4 EM303A...

Страница 132: ...11 5 Connecting Cable Since all braking unit and braking resistors work at a high voltage 400VDC in a non continuous working status please select applicable cable See Table 11 2 for specifications of...

Страница 133: ...er would not response to communicational command in those 8S 12 2 Physical Interface RS485 asynchronous half duplex communication mode Default data format of keypad communication interface 1 8 N 1 bit...

Страница 134: ...ameter of inverter Frame Structure of Sending Message Transmit Sequence Bytes Sent 0 Idle periods of 4 bits 1 Address code 1 2 Function code 1 3 Register address H 2 4 Register address L 5 Register da...

Страница 135: ...L 2 11 CRC parity H 12 Idle periods of 4 bits Frame Structure of Receiving Message Receive Sequence Bytes Received 0 Idle periods of 4 bits 1 Address code 1 2 Function code 1 3 Register start address...

Страница 136: ...nverter 08H Circuit diagnosis and setting 12 4 3 Allocation of Register s Addresses Name Address Description Function Code 0000H 1F1FH Saving Address High byte is the function code group number F0 FF...

Страница 137: ...ghest bit filled with 0 Conduct XOR calculation between the value of CRC register and A001H and then upload the result to CRC parity register 5 If LSB is 0 shift each bit of CRC parity register rightw...

Страница 138: ...e Sequence 0 1 2 3 4 5 6 7 8 9 Data 01H 06H 00H 07H 0BH B8H 3FH 49H 12 5 3 Start Inverter Operation Transmit Sequence 0 1 2 3 4 5 6 7 8 9 Data 01H 06H 40H 00H 00H 01H 5DH CAH Receive Sequence 0 1 2 3...

Страница 139: ...AH Parameter Reset 0005H Slave inverter Stops 000BH Not Used Control Command 2 4001H Virtual Terminals from LSB to MSB are X1 X2 X3 X4 X5 X6 X7 VS VF IS IF Y1 Y2 R1 Virtual Terminals R 1 Y 2 Y 1 IF IS...

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