Page 2 Safety Instructions Thank you for purchasing L&T inverter! Safety Instructions  Read this manual carefully before installing, wiring, operating, servicing or inspecting this equipment.  The safety instructions are divided into such two levels as Warning and Caution in the instruction manual.
Page 3 Safety Instructions  Wiring and periodic inspections should be performed at least 10 minutes after disconnecting the input power and after checking the DC link voltage is discharged with a meter (below DC 30V). Otherwise, you may get an electric shock. ...
Page 4 Safety Instructions OTHER PRECAUTIONS (1) Handling and installation  Handle according to weight of the product.  Do not stack the inverter boxes higher than the number recommended.  Install according to instructions specified in this manual.  Do not open the cover during delivery. ...
Page 5 Safety Instructions (3) Trial run  Check all parameters during operations. Changing parameter values might be required depending on the load.  Always apply permissible range of voltage to each terminal as indicated in this manual. Otherwise, it could lead to inverter damage. (4) Operation methods ...
Page 6 Safety Instructions (7) Disposal  Handle the inverter as an industrial waste when disposing of it. (8) General instructions  Many of the diagrams and drawings in this instruction manual show the inverter without a circuit breaker, a cover or partially open. Never run the inverter like this. Always place the cover with circuit breakers and follow this instruction manual when operating the inverter.
Page 7: Table Of Contents
Instruction Manual Instruction Manual…  The instruction manual provides the overview of the LTVF-Cx2000 inverters, including the specification, installation, operation, functions, maintenance and etc. The instruction manual also shows the inexperienced operators how to operate the inverters safely and correctly. Please read the instruction manual carefully.
Page 8 Content CHAPTER 1 Basic information & precautions - - - - - - - - - - - - - - - Important precautions - - - - - - - - - - - - - - - Product Details - - - - - - - - - - - - - - - Product assembling &...
Page 9 Content - - - - - - - - - - - - - - - Frequency limit 7-21 CHAPTER 8 Advanced functions - - - - - - - - - - - - - - - DC brake - - - - - - - - - - - - - - - Jog operation - - - - - - - - - - - - - - -...
Page 10 Content CHAPTER 10 - - - - - - - - - - - - - - - 10.1 Electronic Thermal 10-1 - - - - - - - - - - - - - - - 10.2 Overload Warning and trip 10-2 - - - - - - - - - - - - - - - 10.3...
Page 11: Basic Information
Chapter 1 basic information & precautions BASIC INFORMATION & PRECAUTIONS 1.1 Important precautions Inspect the inverter for any damage that may have occurred during shipping. To verify the inverter unit is the correct one for the application you need, check the inverter type, output ratings on the nameplate and the inverter is intact.
Page 12: Product Details
Chapter 1 basic information & precautions Product Details A –Mounting hole F –Front cover B –Heat sink G –Sheath C –Button cover H –Indicator light D –Terminal cover I -Fan E –Screw M3 J –Fan cover Cx2000 AC Drive...
Page 13 Chapter 1 basic information & precautions D –Control terminal A –Download interface E –Power supply terminal B –PNP/NPN select switch F –Ground terminal C –Analog Input V/I select Cx2000 AC Drive...
Page 14: Product Assembling & Disassembling
Chapter 1 basic information & precautions Product assembling & disassembling  To remove the front cover: Press the both indented sides of the cover lightly and pull up.  To change the inverter fan: Press the both sides of bottom cover lightly and pull out to your side.
Page 15: Installation Wiring
Chapter 2 INSTALLATION & WIRING 2 INSTALLATION & WIRING 2.1 Installation precautions Caution  Handle the inverter with care to prevent damage to the plastic components. Do not hold the inverter by the front cover. It may fall off.  Install the inverter in a place where it is immune to vibration or extrusion under allowable temperature (- 10 C~ 50 C) ...
Page 16 Chapter 2 INSTALLATION & WIRING  When two or more inverters are installed, the inverters must be installed in proper positions away from the outlet, whose distance shall be 2mm or more (refer to the following figure)  Installed the inverter using screws or bolts to insure the inverter is firmly fastened. ...
Page 17: External Sizes
Chapter 2 INSTALLATION & WIRING 2.2 External sizes LTVF-C10001BAA LTVF-C10002BAA LTVF-C10003BAA LTVF-C20001BAA LTVF-C20002BAA LTVF-C20003BAA LTVF-C20006BAA LTVF-C40002BAA LTVF-C40003BAA LTVF-C10005BAA LTVF-C10008BAA LTVF-C20010BAA LTVF-C20012BAA LTVF-C40005BAA LTVF-C40007BAA Cx2000 AC Drive...
Page 18 Chapter 2 INSTALLATION & WIRING LTVF-C10011BAA LTVF-C20018BAA LTVF-C40010BAA LTVF-C20030BAA LTVF-C20040BAA LTVF-C40016BAA LTVF-C40016BAA Cx2000 AC Drive...
Page 19 Chapter 2 INSTALLATION & WIRING Power Φ Weight Inverter [kW] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] LTVF-C10001BAA 63.5 124.5 0.55 LTVF-C10002BAA 63.5 124.5 0.55 LTVF-C10003BAA 63.5 124.5 LTVF-C10005BAA 0.75 1.22 LTVF-C10008BAA 1.42 LTVF-C10011BAA 1.97 LTVF-C20001BAA 63.5 124.5 0.55 LTVF-C20002BAA 63.5...
Page 20: Terminal Wiring
Chapter 2 INSTALLATION & WIRING 2.3 Terminal wiring Control terminal Name Description 24V Output MF input terminal FX: Forward run (Factory setting) RX: Reverse run Input signal common EST: Emergency stop MF input terminal RST: Trip reset (Factory setting) JOG: Jog Operation 10V power supply for potentiometer Freq.
Page 21 Chapter 2 INSTALLATION & WIRING R(L1) 3 Phase AC Power Input S(L2) Input Input rated terminal voltage T(L3) DB resistor Resistor/ P1(+) (L1) reactor DC reactor P2(+) (L2) N(-) (L3) Motor connec- Motor N(-) tion terminal * Single phase inverter uses terminal R and T for power input (0.1~2.2KW) Cx2000 AC Drive...
Page 22 Chapter 2 INSTALLATION & WIRING 2.4 Specifications for power terminal block wiring 0. 1K W - 0. 4K W ( si ngl e phase 200V ) 0. 75K W - 1. 5K W ( si ngl e phase 200V ) 2.
Page 23 Chapter 2 INSTALLATION & WIRING Caution 1）Apply the rated torque to terminal screws. Loosen screws can cause of short circuit and malfunction. Tightening the screw too much can damage the terminals and cause short circuit and malfunction. 2）Use copper wires only with 600V, 75℃ ratings for wiring. 3）Make sure the input power is off before wiring.
Page 24 Chapter 2 INSTALLATION & WIRING Warning Use the Type 3 grounding method (Ground impedance: Below 100Ω) for 230V drives. Use the Special Type 3 grounding method (Ground impedance: Below 10Ω) for 415V drives. Use the dedicated ground terminal to ground the inverter. Do not use the screw in the case or chassis, etc for grounding.
Page 25: Control Terminal Specification
Chapter 2 INSTALLATION & WIRING 2.5 Control terminal specification Wire size (mm Screw Torque Terminal Description Specification Single size [Nm] Stranded Wire P1～ Multi-function input terminal P1-P5 Common terminal Output voltage: 12V Power supply for analog Max output current: 10mA Potentiometer:1 ~ 5kohm Input voltage:0~10V Analog (voltage and current) input...
Page 26: Pnp/Npn Selection And Analog Input V/I
Chapter 2 INSTALLATION & WIRING Note When you use external power supply (24V) for multi-function input terminal (P1~P5), terminals will be active above 12V level. Take caution not to drop the voltage below 12V. 2.6 PNP/NPN selection and analog input V/I selection P1～P5 When using DC 24V inside inverter [NPN] SW J3 DC 24 V...
Page 27 Chapter 2 INSTALLATION & WIRING Analog input V/I select keypad J1 switch Selecting analog voltage V input: using external voltage source, J1 switches to V side, connect positive pole of voltage source to terminal AI, and negative pole to terminal CM. Max external voltage: 10V Selecting analog voltage I input: using external current source , J1 switches to I side, connect positive pole of current source to terminal AI，and negative to terminal CM.
Page 28: Peripheral Equipment
3. Peripheral equipment...
Page 29 Electromagnetic Inverter model L&T MCCB/Amp contactor LTVF-C10001BAA DM16/2.5 MNX 9-2P LTVF-C10002BAA DM16/6.3 MNX 9-2P LTVF-C10003BAA DM16/12 MNX 9-2P Single phase 230V LTVF-C10005BAA DM100/25 MNX 9-2P LTVF-C10008BAA DM100/30 MNX 12-2P LTVF-C10011BAA DM100/50 MNX 18-2P LTVF-C20001BAA DM16/1.6 DM16/2.5 LTVF-C20002BAA DM16/4 DM16/4 LTVF-C20003BAA DM16/4 DM16/7.5 LTVF-C20006BAA...
Page 30 AC input fuse (external) Inverter model AC reactor DC reactor [Current] [Voltage] LTVF-C10001BAA 10 A 600 V 1.20 mH, 10A 4mH, 8.67A LTVF-C10002BAA 10 A 600 V 1.20 mH, 10A 4mH, 8.67A Single LTVF-C10003BAA 10 A 600 V 1.20 mH, 10A 4mH, 8.67A phase LTVF-C10005BAA...
Page 31: Parameter Setting
Chapter 4 Parameter setting 4 Parameter setting 4.1 Keypad structure Display: SET/RUN LED FWD/REV LED 7-segment LED Key： STOP/RESET Up/Down Right/Left Enter Volume Display Lit during forward run Blinks when a fault occurs Lit during reverse run Lit during operation Lit during parameter setting 7-segment Operation data and parameter information are displayed.
Page 32: Alpha-Numeric Table
Chapter 4 Parameter setting 4.2 Alpha-numeric table Cx2000 AC Drive...
Page 33: Moving To Other Parameter Groups
Chapter 4 Parameter setting 4.3 Moving to other parameter groups  LTVF-Cx2000 series product consists of the following four parameter groups. Drive group FU group 1 FU group 2 I/O group Drive Set Basic parameters necessary for inverter operation, including target group frequency, Accel/Decel time and so on.
Page 34 Chapter 4 Parameter setting  Moving to other parameter groups at the 1 parameter of each group -. The 1 code 0.00 in Drive group displayed is displayed after power is applied. -. Press the Right () key once to go to the Function group 1. -.
Page 35: How To Change The Codes In A Group
Chapter 4 Parameter setting -. The 1 code H 0 of Function group 2 is displayed. 4.4 How to change the codes in a group  Code change in Drive group -. The 1 code 0.00 of Drive group is displayed. -.
Page 36 Chapter 4 Parameter setting  Navigating codes in the same parameter group When moving from F 1 to F 15 in Function group 1 -. F1 of Function parameter group 1 is displayed, -. Continue pressing the Up () key until F28 is displayed.
Page 37: Parameter Setting
Chapter 4 Parameter setting 4.5 Parameter setting Parameter setting in Drive group When changing ACC time from 5.0 sec to 16.0 sec Drive group -. The 1 code of the parameter group is displayed when the Power is applied -. Press the Up () key. -.
Page 38 Chapter 4 Parameter setting  Frequency setting When setting run frequency to 30.05 Hz in Drive group Drive group -. The 1 code is displayed when the power is applied. -. Press the ENT key. -. The second decimal 0 becomes active. -.
Page 39 Chapter 4 Parameter setting  Parameter setting in Function group When changing the parameter value of F28 from 2 to 5 FU group 1 -. The 1 code F 0 of Function group 1 is displayed. -. Press the ENT key. -.
Page 40: Monitoring Of Operation Status
Chapter 4 Parameter setting 4.6 Monitoring of operation status  Output current display Monitoring output current in Drive group Drive group -. The 1 parameter of Drive group is displayed. -. Press the Up () or Down () key until [CUr] is displayed. -.
Page 41 Chapter 4 Parameter setting  Fault display Monitoring faults in Drive group During Over- Accel current trip Current Frequency STOP Drive group RESET -. This message appears when an Over-current fault occurs. -. Press the Enter key or UP ()/Down () key once. -.
Page 42 Chapter 4 Parameter setting Parameter initialize Initializing all the parameters in H93 parameter of Function group 2. -. The 1 code of Function group 2 is displayed. -. Press the ENT key once. -. The parameter number 1 to be moved is displayed. -.
Page 43: Frequency Setting And Basic Operation
Chapter 4 Parameter setting 4.7 Frequency setting and Basic Operation Caution The following instructions are given based on the fact that all parameters are set to factory defaults. Results could not be consistent with the following contents if parameter values are changed after purchase of products by customers.
Page 44 Chapter 4 Parameter setting  Frequency Setting via Terminal AI (V) and Driving via Terminals -. Apply power to the inverter. -. 0.00 is displayed on the inverter keypad. -. Press the Up () key four times. -. Freq. is displayed. Frequency setting mode is selectable. -.
Page 45 Chapter 4 Parameter setting  Frequency setting via Terminal AIN (V1) and Driving via Pressing Run Key -. Apply power to the inverter. -. 0.00 is displayed on the inverter keypad. -. Press the Up () key three times. -. drv. is displayed and the drive pattern is selectable. -.
Page 46: Parameter List
Chapter 5 – Parameter list 5 Parameter list Drive Group Adj. Drive Address Parameter Factory Description during Page Group for comm name range defaults This parameter sets the frequency that the inverter is commands to output. 0.00 ～ Frequency During stop: frequency command 0.00 1100 400.00...
Page 47: Chapter 5 Function List
Chapter 5 – Function list RS-485 communication Digital (UP/DOWN) rotation Drive Group Address Adj. Parameter Factory Description during Page display name range defaults comm Multi-step Sets Multi-step frequency 1 during Multi- 1105 frequency 0.00 step operation Multi-step 0.00 ～ Sets multi-step frequency 2 during multi- 1106 frequency 400.00...
Page 48 Chapter 5 – Parameter list FX: Motor forward run RX: Motor reverse run Terminal FX: RUN/STOP enable operation RX: Reverse rotation select 3 RS-485 communication : Only displayed when one of the Multi-function input terminals 1-5 [I17~I21] is set to “22”. Drive Group Address Adj.
Page 49: Dc Brake
Chapter 5 – Function list If H58 is 0, it is expressed as a [Hz] unit. 0.00～ PID control If H58 is 1, it is expressed as a 400.00 standard [%] unit. 1110 [Hz] or 0.00 8-10 value In [Hz] unit, you can‟t set Max. 0～...
Page 50 Chapter 5 – Parameter list 0.00～ When DC brake frequency is reached, DC Brake 1209 60.00 the inverter holds the output for the 0.10 wait time [sec] setting time before starting DC brake. This parameter sets the amount of DC DC brake 0 ～...
Page 51 Chapter 5 – Function list Except F22 (base frequency), any frequency which is set above F21 will automatically turn to the set value of 30.00～ The inverter outputs its rated voltage Base 1216 400.00 to the motor at this frequency (see 50.00 7-17 frequency...
Page 52 Chapter 5 – Parameter list This parameter sets the amount of Torque boost in 0.0～ torque boost applied to a motor during 121D reverse 20.0 reverse run. direction It is set as a percent of Max output voltage 0 Linear 7-17 121E V/F pattern...
Page 53 Chapter 5 – Function list Function group 1 Address Adj. Parameter Factory Range Description During Page display name defaults comm This parameter adjusts the amount of 40.0～ Output voltage output voltage. 1227 110.0 100.0 7-18 adjustment The set value is the percentage of input voltage.
Page 54 Chapter 5 – Parameter list : Set F50 to 1 to display this parameter. Function group 1 Address Adj. Parameter Factory Range Description During Page display name defaults comm This parameter issues an alarm signal when Overload 0.0～ the current greater than Overload warning 1237 warning 30.0...
Page 55 Chapter 5 – Function list This parameter sets the amount of current to Stall activate stall prevention function during Accel, 30 ～ 123C prevention Constant or Decel run. 10-3 200[%] level The set value is the percentage of Motor rated current (H33).
Page 56 Chapter 5 – Parameter list 400V input 320 ～ 1244 400V inverter input voltage set 8-30 voltage 480[V] : It is indicated when setting bit 2 of F59 as 1 : Set F63 to 1 to display this parameter. : 200V inverter displays F67, 400V inverter displays F68. Function group 1 Address Adj.
Page 57 Chapter 5 – Function list 1305 Fault history 5 Fault history 1. Reset fault 1306 0 ～ 1 Clears the fault history saved in H 1-5. history When run frequency is issued, motor starts to accelerate after dwell frequency is 0.10～...
Page 58 Chapter 5 – Parameter list S-Curve Set the speed reference value to form a 1 ～ 1312 accel/decal curve at the end during accel/decel. If it is 100[%] end side set higher, linear zone gets smaller. Input/output Inverter input output lack phase phase loss protection selection 1313...
Page 59 Chapter 5 – Function list Function group 2 Address Adj. Parameter Factory Range Description During Page display name defaults comm This parameter is active to prevent any possible fault when the inverter outputs its 8-17 voltage to the running motor. Power Restart On start...
Page 60 Chapter 5 – Parameter list Function group 2 Address Adj. Parameter Factory Range Description During Page display name defaults comm This parameter limits the amount of Current level 80 ～ current during speed search. 1317 During Speed 200[%] The set value is the percentage of Motor search rated current (H33).
Page 61 Chapter 5 – Function list Function group 2 Address Adj. Parameter Factory Range Description During Page display name defaults comm Enter the current value detected when the motor is rotating in rated rpm after the No load 0.1～ load connected to the motor shaft is 1322 8-15 motor current...
Page 62 Chapter 5 – Parameter list Function group 2 Address Adj. Factory Parameter name Range Description During Page display defaults comm Sensorless 132D P gain for Sensorless control 1000 P gain 0 ～ Sensorless 32767 132E I gain for Sensorless control l gain Sensorless 100.0～...
Page 63 Chapter 5 – Function list Function group 2 Address Adj. Factory Parameter name Range Description During Page display defaults comm PID output 0.10～ This parameter limits the amount of the 1337 frequency 400.00 60.00 output frequency through the PID control. high limit] [Hz] The value is settable within the range of...
Page 64 Chapter 5 – Parameter list Address Adj. Parameter Factory Range Description During Page display name defaults comm KEB action 110.0～ Sets KEB action stop level according to 1342 130.0 stop level 145.0[%] level. 8-27 KEB action 1 ～ 1343 Sets KEB action gain. gain 20000 Frequency...
Page 65 Chapter 5 – Function list Address Adj. Parameter Factory Range Description During Page display name defaults comm One of the following can be monitored via vOL(User display select). Monitoring Output voltage [V] 1349 0 ～ 2 item select Output power [kW] Torque [kgf m] Gain for This parameter is used to change the motor...
Page 66 Chapter 5 – Parameter list Address Adj. Parameter Factory Range Description During Page display name defaults comm 2nd motor 0.0～ 1351 Accel time 6000.0 [sec] 2nd motor 1352 10.0 Decel time 2nd motor base 30.00～ This parameter actives when 1353 60.00 frequency 400.00[Hz]...
Page 67 Chapter 5 – Function list Function group 2 Address Adj. Parameter Factory Range Description During Page display name defaults comm This parameter is used to initialize parameters back to the factory default value. All parameter groups are initialized Parameter 135D 0 ~ 5 8-30 to factory default value.
Page 68 Chapter 5 – Parameter list Input/output group Adj. Address for Parameter Factory Range Description During Page display comm name defaults 1400 Jump code 0 ～ 87 Sets the code number to jump. V2 input wave 0 ～ Set panel potentiometer V2 input filtering 1401 filtering time 9999...
Page 69 Chapter 5 – Function list Input/output group Adj. Address for Parameter Factory Range Description During Page display comm name defaults 0 ～ Sets simulation input A1 (terminal 1) input 140B I input 9999 filtering wave time constant. 0.00～ I input Min Sets simulation input A1 (terminal 1) Min.
Page 70 Chapter 5 – Parameter list Input/output group Address Adj. Parameter Factory Range Description During Page display name defaults comm Multi-function input 0 Forward run command 1411 terminal P1 define 1 Reverse run command 2 Emergency Stop Trip Multi-function input 1412 terminal P2 define 3 Reset when a fault occurs 4 Jog operation command...
Page 71 Chapter 5 – Function list Change from PID operation to 8-11 V/F operation 2nd Source 8-22 Analog Hold Accel/Decel Disable 7-16 Up/Down save freq. Initialization JOG-FX JOG-RX # In I17-I21, please refer to “Chapter 6” for fault signal input displaying. # Two or above multi-function input terminal cannot be set, which has the same function.
Page 72 Chapter 5 – Parameter list Multi-Step 1421 0.00 frequency 7 1422 Multi-Accel time 1 1423 Multi-Decel time 1 1424 Multi-Accel time 2 1425 Multi-Decel time 2 1426 Multi-Accel time 3 1427 Multi-Decel time 3 0.0～ 1428 Multi-Accel time 4 6000.0 7-14 1429 Multi-Decel time 4...
Page 73 Chapter 5 – Function list Input/output group Adj. Address for Parameter Factory Range Description During Page display comm name defaults FDT-1 FDT-2 FDT-3 FDT-4 FDT-5 Overload (OL) Inverter Overload (IOL) Motor stall (STALL) Over voltage trip (Ovt) 9-10 Multi -function Low voltage trip (Lvt) 1437 ～...
Page 74 Chapter 5 – Parameter list Input/output group Adj. Address for Parameter Factory Range Description During Page display comm name defaults Communic Set communication protocol. ation 143B 11-2 ～ protocol Modbus RTU select Inverter 1～ 143C Set for RS485 communication 11-2 number Set communication speed 1200 [bps]...
Page 75 Chapter 5 – Function list Input/output group Address for Adj. Parameter Factory communica Range Description During Page display name defaults tion Read 1442 address register 1 Read 1443 address register 2 Read 1444 address register 3 Read 1445 address The user can register up to 8 discontinuous register 4 0 ～...
Page 76 Chapter 5 – Parameter list Input/output group Address for Adj. Parameter Factory communica Range Description During Page display name defaults tion Write The user can register up to 8 144D address discontinuous addresses and write register 4 them all with one Write command Write 144E address...
Page 77: Chapter 6 Control Block Diagram
Chapter 6 Control Block Diagram 6. Control Block Diagram Cx2000 AC Drive...
Page 78: Frequency Setting
Chapter 6 Control Block Diagram 6.1 Frequency Setting Cx2000 AC Drive...
Page 79 Chapter 6 Control Block Diagram Cx2000 AC Drive...
Page 80: Drive Command Setting
Chapter 6 Control Block Diagram 6.2 Drive command setting Cx2000 AC Drive...
Page 81: Accel/Decel Setting And Vf Control
Chapter 6 Control Block Diagram 6.3 Accel/Decel setting and VF control Cx2000 AC Drive...
Page 82: Chapter 7 Basic Functions
Chapter 7 Basic Functions 7. Basic Functions 7.1 Frequency setting method Keypad frequency setting 1 Group Code Item Set value Range Initial Unit Drive group 0.00 Target frequency 0.00 ~ 400.00 0.00 Frequency setting mode 0 ~ 8 Set Frq code of Drive group to 0. In the frequency command code (0.00), after setting of the operating frequency, press the Ent() key to complete the frequency change.
Page 83 Chapter 7 Basic Functions Setting frequency for keypad potentiometer V2: 0～5 [V] Group Code Item Set value Range Initial Unit Drive group 0.00 Target frequency 0.00 ~ 400.00 0.00 Frequency setting mode 0 ~ 8 I/O group Filter time constant for V2 0 ~ 9999 input V2 input Min voltage...
Page 84 Chapter 7 Basic Functions  I7 ~ I10: the input voltage range and corresponding frequency of V1 terminal can be set.  Ex) when minimum (+) input voltage is 2V with corresponding frequency 10Hz and Max voltage is 8V with run req.
Page 85 Chapter 7 Basic Functions Setting of keypad potentiometer V2+ terminal AI 0 ~ 20mA (dial J1 to terminal I) Group Code Item Set value Range Initial Unit Drive group 0.00 Target frequency 0.00 ~ 400.00 0.00 Frequency setting mode 0 ~ 8 Set Freq code of Drive group to 5.
Page 86 Chapter 7 Basic Functions Setting of keypad potentiometer V2+ terminal AI (dial J1 to V terminal) Group Code Item Set value Range Initial Unit Drive group 0.00 Target frequency 0.00 ~ 400.00 0.00 Frequency setting mode 0 ~ 8 Set Frq code of Drive group to 6. Relevant parameters: I 2 ~ I 5 ,I 6 ~ I 10 Please refer to the method and example for setting frequency through keypad potentiometer V2+ terminal AI 0 ~ 20mA (dial J1 to terminal I).
Page 87 Chapter 7 Basic Functions Analog frequency hold Group Code Item Set value Range Initial Unit Drive group Frequency mode 2 ~ 7 0 ~ 8 I/O group Multi-function input terminal P1 0 ~ 27 function selection Multi-function input terminal P5 function selection It is available when Freq.
Page 88 Chapter 7 Basic Functions 7.2 Method of multi-step frequency setting Group Code Item Set value Range Initial Unit Drive group 0.00 Target frequency 0.00~ 400.00 0.00 Frequency setting mode 0 ~ 8 Multi-step frequency 1 0.00~ 400.00 0.00 Multi-Step frequency 2 0.00 Multi-Step frequency 3 0.00...
Page 89: Operating Command Setting Method
Chapter 7 Basic Functions 7.3 Operating command setting method Operation via keypad RUN key and STOP/RST key Group Code Item Set value Range Initial Unit Drive group Drive mode 0 ~ 3 Selection of motor rotation direction It is used only when the inverter uses the keypad control. Set drv code of Drive group to 0.
Page 90 Chapter 7 Basic Functions Operating command 2 via FX, RX terminal Group Code Item Set value Range Initial Unit Drive group Drive mode 0 ~ 3 I/O group Multi-function input terminal 0 ~ 27 P1 function selection Multi-function input terminal 0 ~ 27 P2 function selection Set drv of Drive group to 2.
Page 91 Chapter 7 Basic Functions FX/RX operation disables Group Code Item Set value Range Initial Unit Selection of motor rotation Drive group direction Function group1 Forward/ Reverse disable 0 ~ 2 Select the direction of motor rotation. 0: Forward and Reverse run enable. 1: Forward run disable 2: Reverse run disable Power on Start select...
Page 92 Chapter 7 Basic Functions Restart after fault reset Group Code Item Set value Range Initial Unit Drive group Drive mode 0 ~ 3 Function Restart after fault reset 0 ~ 1 group 2 selection Set H21 to 1. When drv is set to terminal operation (1 or 2) with FX or RX ON, the motor starts acceleration after the fault is reset.
Page 93: Accel/Decel Time And Pattern Setting
Chapter 7 Basic Functions 7.4 Accel/Decel time and pattern setting Accel/Decel time setting based on Max frequency Group Code Item Set value Range Initial Unit Drive group Accel time 0.0 ~ 6000.0 20.0 Decel time 0.0 ~ 6000.0 20.0 Function group1 Max Frequency 40.00~ 400.00 50.00...
Page 94 Chapter 7 Basic Functions Accel/Decel time setting based on Operating Frequency Group Code Item Set value Range Initial Unit Drive group Accel time 0.0~ 6000.0 Decel time 0.0~ 6000.0 10.0 Frequency reference for Function group 2 0 ~ 1 Accel / Decel time Desired Accel/Decel time is set at the ACC/dEC.
Page 95 Chapter 7 Basic Functions Multi-Accel/Decel time setting via Multi-function terminals Group Code Item Set value Range Initial Unit Drive group Accel time 0.0~ 6000.0 20.0 Decel time 0.0~ 6000.0 20.0 I/O group Multi-function input terminal P1 function selection Multi-function input terminal P2 function selection Multi-function input terminal P3 0 ~ 27...
Page 96 Chapter 7 Basic Functions Accel/Decel curve setting Group Code Item Range Initial Unit Function group 1 Accel pattern Linear curve operation Decel pattern S curve operation Function group 2 S-Curve Accel/Decel 0 ~ 100 start curve S-Curve Accel/Decel end curve Accel pattern and Decel pattern can be settable at F2, F3 in function group 1.
Page 97 Chapter 7 Basic Functions Accel  Note that setting Frequency Ref. for Accel/Decel (H70) is set to Max Freq and target freq is set below Max Start freq. the shape of S-curve may be distorted. CAUTION Accel/Decel Ref.Freq If Target Frequency is lower Target Freq than the Max Frequency, the waveform will be shown with...
Page 98: V/F Control
Chapter 7 Basic Functions 7.5 V/F control Linear V/F pattern operation Group Code Item Set value Range Initial Unit Function group 1 Base frequency 30.00 ~ 400.00 50.00 Start frequency 0.10~10.00 0.50 V/F pattern 0 ~ 2 Function group 2 Control mode select 0 ~ 3 Set F30 to 0 (linear)
Page 99 Chapter 7 Basic Functions User V/F pattern operation Group Code Item Set value Range Initial Unit Function group 1 V/F pattern 0 ~ 2 User V/F frequency 1 0.00~ 400.00 12.50 ～ User V/F voltage 4 0 ~ 100 Set F30 to 2 (user V/F). User can adjust the Volt/Frequency ratio according to V/F pattern of specialized motors and load characteristics.
Page 100 Chapter 7 Basic Functions Manual torque boost Group Code Item Set value Range Initial Unit Function group 1 Torque boost selection 0 ~ 1 0 ~ 15 Forward torque boost Reverse torque boost Set F27 to 0 ( Manual torque boost) Forward/ reverse torque boost are set at F28 and F29 respectively.
Page 101 Chapter 7 Basic Functions 7.6 Stop mode select Decel to stop Group Code Item Set value Range Initial Unit Function group 1 Stop mode selection 0 ~ 3 Set F4 to 0 (Decel to stop). Motor decelerates to 0 Hz and stops during the setting time. F re q .
Page 102 Chapter 7 Basic Functions Electric braking Group Code Item Set value Range Initial Unit Function group 1 Stop mode selection 0 ~ 3 Set F4 to 3 (electric braking) When operating command is turned off, the motor stops at the rapidest speed. Refer to page 8-25. 7.7 Frequency limit Frequency limit using Max Frequency and Start Frequency Group...
Page 103 Chapter 7 Basic Functions Skip frequency operation Group Code Item Set value Range Initial Unit Function group 2 Skip frequency selection 0 ~ 1 Skip frequency low limit 1 0.10 ~ 400.00 10.00 Skip frequency high limit 3 0.10 ~ 400.00 35.00 Set H10 to 1 (using skip frequency function).
Page 104 Chapter 8 Application 8. Application 8.1 DC brake  Measures to stop motor through DC brake Group Code Item Set Value Setting Range Initial Unit Function Stop mode select 0 ~ 3 Group 1 DC Brake start frequency 0.10 ~ 60.00 5.00 DC Brake wait time 0.00 ~ 60.00...
Page 105 Chapter 8 Application  Starting DC brake Group Code Item Set Value Setting Range Initial Unit Function Group 1 DC Brake start voltage 0 ~ 200 DC Brake start time 0.0 ~ 60.0  F12: Set on the basis of rated current of motor—H33 ...
Page 106 Chapter 8 Application Voltage 전 압 F 12 8.2 Jog control Run command 운 전 지 령  Jog Operation Group Code Item Set Value Setting Range Initial Unit Function Group 1 Jog frequency 0.00~ 400.00 10.00 I/O Group Multi-function input terminal 0 ~ 27 P5 function selection Function group 1: set the jog frequency in F20.
Page 107 Chapter 8 Application  Function group 1: set the jog frequency in F20.  Select a terminal to use for the Jog-FX from multi-function input terminals (P1~P5)  If P4 is set for jog FX, set I20 to 26 (jog-FX) in I/O group. Jog frequency can be set within the range of F21 (Max frequency) and F23 (Start frequency).
Page 108 Chapter 8 Application  If you select P4 and P5 as an up-down drive terminal, select each 15 (frequency increase command) and 16 (frequency decrease command) in the I20 and I21 of I/O group.  If you select P3 terminal as an up-own save initial terminal, select 25 (up-down save initialization) in the I19 of I/O group.
Page 109 Chapter 8 Application set in the above regardless of stop method. (If frequency limit exist, speed is decreased up to lower limit.) I17 = 0 Frequency I19 = 25 P4 (UP) I20 = 15 I21 = 16 P5 (DOWN) Run command (FX) Saved frequency Output frequency P3(CLEAR)
Page 110: Dwell Operation
Chapter 8 Application Caution Because of UP or DOWN, when the input is entered again before it is increased as many as 1 step frequency, the input is ignored and the saved frequency is also frequency of the inactivated moment 8.4 3-Wire Setting Group...
Page 111 Chapter 8 Application Dwell time 0.0 ~ 10.0  In this setting, motor begins to accelerate after dwell operation is executed for dwell time at the dwell frequency.  It is mainly used to release mechanical brake in elevators after operating at dwell frequency.
Page 112: Slip Compensation
Chapter 8 Application H31: Enter the pole number on the Motor nameplate.   H32: Enter the slip frequency in accordance with the following formula and motor nameplate. Where, fs = Rated slip frequency f r = Rated frequency rpm = Motor rated RPM P = Motor pole number Ex) Rated freq.: 60Hz, Rated RPM: 1740rpm, Poles: 4, 1740...
Page 113: Pid Control
Chapter 8 Application 8.7 PID control Group Code Item Set Value Setting Range Initial Unit Function 0 ~ 1 PID Operation selection group 2 PID Feedback selection 0 ~ 2 P gain for PID controller 0.0~ 999.9 300.0 Integral time for PID controller 0.1~ 32.0 (I gain) Differential time for PID...
Page 114 Chapter 8 Application H51: Set the percentage of output to error. If P Gain is set to 50%, 50% of the error value will be output.  Higher value can reach the target control value faster but it may cause oscillation. ...
Page 115 Chapter 8 Application Normal PID drive (H54=0)  PID control diagram Frequency Conversion PID Gain H58 = 0 : Frequency Operation Concept Func. Group 2 H58 = 1 : % Operation Concept H51 : P Gain Multi Function H52 : I Gain Input H53 : D Gain PID Limit...
Page 116 Chapter 8 Application  Process PID drive (H54=1) 1st/2nd Frequency Selection Drive. Group Keypad-1/-2 Main frequency instruction KPD V2(0~5V) V1(0 ~ 10 V) I(0 ~ 20 mA) PID Gain V2+1) Func. Group 2 V1+V2 Output frequency H51 : P Gain Communication scale Multi Function...
Page 117: Auto-Tuning
Chapter 8 Application  Sleep & Wake-up  Sleep function means if output frequency of PID control is maintained at the set sleep frequency (H62) over sleep delay time (H61) due to not enough flux, Sleep function becomes sleep mode automatically and inverter is stop.
Page 118: Sensorless Vector Control
Chapter 8 Application H41: When H41 is set to 1 and press the Enter key, Auto tuning is activated and “tUn” will appear on  the LED keypad. When finished, “H41” will be displayed.  H42, H44: The values of motor stator resistance and leakage inductance detected in H41 are displayed, respectively.
Page 119 Chapter 8 Application remove the load from the motor shaft, enter the value either 40 to 50% of the H33 – [Motor rated current] or the factory default.  In case that occur torque riffle while high speed driving, lower H34-[No load current] to 30%. H42, H44: Enter the value of the parameter measured during H41 –...
Page 120: Energy-Saving Operation
Chapter 8 Application 8.10 Energy-saving operation Group Code Item Set Value Setting Range Initial Unit Function Group 1 0 ~ 30 Energy-saving level]  Set the amount of output voltage to be reduced in F40.  Set as the percent of Max output voltage. ...
Page 121: Speed Search
Chapter 8 Application The following table shows 4 types of Speed search selection.  Speed Speed search Speed search Speed search Speed search during H20 – during Instant during H21- search select [Power ON start] Power Failure [Restart after during Value restart fault reset]...
Page 122: Auto Restart Try
Chapter 8 Application  When the input power is cut off due to instant power failure, the inverter outputs Low voltage trip (LV) to hold the output.  When the power is restored, the inverter outputs the frequency before the low voltage trip and the voltage is increased due to PI control.
Page 123 Chapter 8 Application  : Trip occurred  Constant Run  Freq.    Voltage Speed Search Operation Reset Run Command 30Sec Number of Auto restart try 8.13 Carrier frequency select Group Code Item Set Value Setting Range Initial Unit Function group 2 Carrier frequency...
Page 124: Nd Motor Operation
Chapter 8 Application 8.14 2 motor operation Group Code Item Setting Range Initial Unit Value Function 2nd motor accel time 0.0 ~ 6000.0 Second group 2 0.0 ~ 6000.0 2nd motor decel time 10.0 Second 2nd motor base freq. 30.00~ 400.00 60.00 2nd motor V/F pattern 0 ~ 2 2nd motor Positive torque boost...
Page 125: Hd/Nd Select
Chapter 8 Application 8.15 HD/ND select Setting Group Code Item Initial Unit Value Range Function Group 1 F72 HD/ND Select 0 ~ 1  Select rated capacity of inverter.  0: used for HD for constant torque application 1: used for ND for decreasing torque application Rated current and applicable motors of inverter HD/ND refer to page 13-1, 13-2.
Page 126 Chapter 8 Application  Selects the self drive in the 2nd switching of drv2 among the followings drv2 Drive mode 2 Operation via Run/Stop key on the Keypad Terminal FX: Forward run command operation RX: Reverse run command FX: Run/Stop command RX: Forward/Reverse Command Operation via communication RS-485 ...
Page 127 Chapter 8 Application Communication FX P5 : 2 change Output Freq. 30.00 ① : Accelerate for accel time up to setting frequency by Drive 1 mode, FX signal.  ② : Drive continuously under FX is ON because DRV2 is 1 when P5 terminal input is ON and changes ...
Page 128 Chapter 8 Application 8.17 Over voltage trip prevention during deceleration and Power Braking Group Code Item Set Value Setting range Initial Unit Function Select stop method 0 ~ 3 Group 1 BIT 0: stall prevention under Accel BIT 1: stall prevention under 0 ~ 7 constant speed BIT 2: stall prevention...
Page 129: External Brake Control
Chapter 8 Application 8.18 External brake control Group Code Item Set Value Setting Range Initial Unit Function group 2 Controlling method select I/O group I 82 Brake open current 0.0~180.0 50.0 I 83 Brake open delay time 0.00~10.00 1.00 I 84 Brake open CW Freq.
Page 130: Kinetic Energy Buffering
Chapter 8 Application Caution External brake control is applicable for V/F control only, and the brake open frequency is lower than close. 8.19 Kinetic energy buffering Group Code Item Set Value Setting Range Initial Unit Function KEB operation select group 2 KEB operation start level 110.0 ~ 140.0 125.0...
Page 131 Chapter 8 Application Select 1, 2 and 3 for F70  The center value of analogue input (selected by the set value of I6~I15) as standard, if the input is bigger than the standard (center value of analogue input), the frequency increases. If the input is smaller than the standard (center value of analogue input), the frequency decreases.
Page 132: Phase Pwm Drive
Chapter 8 Application 8.21 2 Phase PWM drive Setting Group Code Item Set Value Initial Unit Range Function group 2 PWM controlling mode 0 ~ 1 0: NORMAL PWM 1: 2 phase PWM Heat loss and leakage current from inverter can be reduced when H48 is set to 1(2 phase PWM) ...
Page 133: Parameter Initialize / Lock
Chapter 8 Application 0: continuous operation when cooling fan trip occurs.  -. Operation is not stopped regardless of cooling fan trip. -.When I55 is set to 18 (cooling fan fault alarm), fault alarm signal can be output using Multi-function relay.
Page 134 Chapter 8 Application Press Enter (●) key after setting in H93. H93 will be displayed again after initialization is complete.   Password register Setting Group Code Item Initial Unit Value Range Function group 2 0 ~ FFFF Password register 0 ~ FFFF Parameter lock ...
Page 135 Chapter 8 Application  Parameter lock Setting Group Code Item Initial Unit Value Range Function group 2 0 ~ FFFF Parameter lock 0 ~ FFFF Input password - Use password to protect parameters set by users  Use password registered in H94 to lock parameter Note Keypad Display Move to H95 code...
Page 136: Chapter 9 Monitoring
Chapter 9 Monitoring 9 Monitoring 9.1 Operating status monitoring  Output current Group Code Name Set Value Range Default Unit Drive group Output current Inverter output current can be monitored in Cur. Motor RPM  Group Code Name Set Value Range Default Unit Drive group...
Page 137 Chapter 9 Monitoring  User display select Group Code Name Set Value Range Default Unit Drive group User display select Function group 2 Monitoring item select 0 ~ 2 The selected item in H73 can be monitored in vOL.  ...
Page 138: Monitoring The I/O Terminal
Chapter 9 Monitoring The output current, motor rpm, DC link voltage and User display select are displayed directly when 14~17 are set in  H72. 9.2 Monitoring the I/O terminal Input terminal status monitoring  Group Code Name Set Value Range Default Unit...
Page 139: Monitoring Fault Condition
Chapter 9 Monitoring 9.3 Monitoring fault condition Monitoring current fault status  Group Code Name Set Value Range Default Unit Drive group Current Fault Display Fault occurred during operation is displayed in nOn.  Up to 3 kinds of faults can be monitored. ...
Page 140: Analog Output
Chapter 9 Monitoring  When the fault condition is reset via the STOP/RST key or multi-function terminal, information displayed in the nOn will be moved to H1. In addition, the previous fault info stored in H1 will be automatically moved to H2.
Page 141 Chapter 9 Monitoring 9.5 Multi-function relay output select I55 Group Code Name Setting Range Initial I/O Group FDT-1 FDT-2 FDT-3 FDT-4 FDT-5 Overload (OL) Inverter Overload (IOL) Motor stall (STALL) Over voltage trip (Ovt) Multi- function Low voltage trip(Lvt) Relay Inverter overheat(OHt) select Command loss...
Page 142 Chapter 9 Monitoring Select the desired item to be output via the keypad of relay.  I56: When 17 (Fault output) is selected in I55, Multi-function output terminal and relay will be activated with the value in I56. 0 : FDT-1 ...
Page 143 Chapter 9 Monitoring  When setting I52 and I53 to 30.00 Hz and 10.00 Hz, respectively 50Hz 30Hz Freq. setting 25Hz Freq. Run command 2 : FDT-3  Activated when run frequency meets the following condition  Active condition: Absolute value (FDT level - run frequency) <= FDT Bandwidth/2 Group Code Name...
Page 144 Chapter 9 Monitoring 3 : FDT-4  Activated when run frequency meets the following condition  Accel time: Run Frequency >= FDT Level  Decel time: Run Frequency > (FDT Level – FDT Bandwidth/2) Group Code Name Set Value Range Default Unit I/O Group...
Page 145 Chapter 9 Monitoring  When setting I52 and I53 to 30.00Hz and 10.00 Hz, respectively 30Hz 25Hz Freq. Run command 5 : Overload (OLt)  Refer to page 10-2. 6 : Inverter Overload (IOLt)  Refer to page 10-5 7 : Motor stall (STALL) ...
Page 146 Chapter 9 Monitoring 13 : During stop  Activated during stop without active command Freq. Run command 14 : During constant run  Activated during constant speed operation Freq. Run command 15: During speed searching  Refer to page 8-17. 16: Wait time for run signal input ...
Page 147: Protective Functions
Chapter 10 Protective Functions 10. Protective Functions 10.1Electronic Thermal Group Code Parameter Set Value Range Initial Unit Function ETH (Electronic thermal) 0 ~ 1 group 1 select Electronic thermal level 50 ~ 200 150 for 1 minute Electronic thermal level 50 ~ 150 100 for continuous Motor cooling type...
Page 148: Overload Warning And Trip
Chapter 10 Protective Function Current % ETH trip time (sec) 10.2 Overload warning and trip Overload warning Group Code Parameter Set Value Range Initial Unit Function Overload warning level 30 ~ 150 Group 1 Overload warning time 0.0 ~ 30.0 10.0 I/O Group Multi-function relay function 0 ~ 19...
Page 149: Stall Prevention
Chapter 10 Protective Functions  Overload trip Group Code Parameter Set Value Range Initial Unit Function Overload trip select 0 ~ 1 group 1 Overload trip level 30 ~ 200 180 Overload trip time 0.0~ 60.0 60.0  Set F56 to 1 in the function group 1 Inverter output is turned off when motor is overloaded.
Page 150 Chapter 10 Protective Function  F59: Stall prevention can be set as the table below. Stall prevention During During During Accele constant Set Value Deceleration ration speed BIT 2 BIT 1 BIT 0        ...
Page 151: Output Phase Loss Protection
Chapter 10 Protective Functions 10.4 Output phase loss protection Group Code Parameter Set Value Range Initial Unit Function Input/Output phase loss 0 ~ 3 group 2 protection select  Set H19 value to 3 in the function group 2.  Output phase loss: Inverter output is shut off at the event of more than one phase loss among 3 phase output (U, V and W).
Page 152: Inverter Overload
Chapter 10 Protective Function  External trip signal input A contact (N.O.): Normal open contact input. When P4 terminal set to “Ext trip-A” is ON (Closed), inverter displays the fault and turns off its output.  External trip signal input B contact (N.C.): Normal close contact input. When P5 terminal set to “Ext trip-B”...
Page 153: Speed Command Loss
Chapter 10 Protective Functions 10.7 Speed command loss Group Code Parameter Set Value Range Initial Unit I/O Group Select criteria for analog 0 ~ 2 speed command loss Drive mode select at loss 0 ~ 2 of speed command Wait time after loss of 0.1 ~ 120.0 1.0 speed Command Multi-function relay select...
Page 154: Db Resistor Enable Duty Setting
Chapter 10 Protective Function Set freq Output freq Relay Run Command 10.8 DB Resistor Enable Duty setting Group Code Parameter Set Value Range Initial Unit Function 0 ~ 1 Enable duty limit group 2 Enable duty 0 ~ 30 Set H75 to 1. ...
Page 155 Chapter 10 Protective Functions  For 415V inverter, when DC link voltage rises to the value set in F74, the DB resistor is activated. EX1) steady stop Where, T_acc: Acceleration time to reach a setting freq. T_steady: Time for constant speed operation at setting freq. T_dec: Time to decelerate to lower freq.
Page 156: Chapter 11 Communication
Chapter 11 Communication 11. Communication 11.1 Introduction This chapter describes specification, installation and operation instruction for communication between inverter and PC or FA computer. The communication of LTVF-Cx2000 inverter makes use of PC or F A computer (hereinafter called computer) remote operation or monitoring LTVF-Cx2000 inverters. Features: Inverter can be easily applied for factory automation because operation and monitoring is available by User-program...
Page 157: Installation
Chapter 11 Communication 11.3 Installation 1) Connecting the communication line Connect the RS-485 communication line to the inverter’s (S+), (S-) terminals of the control terminals Check the connection and turn ON the inverter. If the communication line is connected correctly set the communication-related parameters as the following: Relevant functions: drv [Drive mode]...
Page 158: Communication Protocol
Chapter 11 Communication the operating program for the inverter. 11.5 Communication protocol (MODBUS-RTU) Use Modbus-RTU protocol (Open protocol). Computer or other hosts can be Master and inverters Slave. Inverter responds to Read/Write command from Master. Code Description 0x03 Read Hold Register Function 0x04 Read Input Register...
Page 159: Parameter Code List (Common Area)
Chapter 11 Communication 11.6 Parameter code list <Common area> (note 1) Address Parameter Scale Unit R/W Allotment for Bits 0x0000 INV model C: LTVF-Cx2000 0000:0.1kW-1 0001:0.2kW-1 0002:0.4kW-1 0003:0.8kW-1 0004:1.5kW-1 0005:2.2kW-1 0006:0.1kW-2 0007:0.2kW-2 0008:0.4kW-2 0009:0.8kW-2 000A:1.5kW-2 000B:2.2kW-2 0x0001 INV capacity 000C:3.7kW-2 000D:5.5kW-2 000E:7.5kW-2 000F:0.4kW-4...
Page 160 Chapter 11 Communication Time 0x0009 Output Current See Function List Output 0x000A 0.01 See Function List Frequency Address Parameter Scale Unit Allotment for Bits Output 0x000B See Function List voltage DC Link 0x000C See Function List Voltage 0x000D Output Power See Function List Reserved REM.
Page 161: Troubleshooting
Chapter 11 Communication 0x001C User version Not used Address Parameter Scale Unit Allotment for Bits SAFB SAFA 0x001D Trip information-B REEP Reserved 0x001E PID feedback PID Feedback is set by communication 0x0100 : I66 0x0101 : I67 0x0100 Read address reg 0x0102 : I68 0x0103 : I69 ister (Note 3)
Page 162 Chapter 11 Communication Is the data format of user program* right? Revise User Program (Note 1) Is the connection between converter and Refer to the correct wiring in accordance communication card right? with“11.3 Installation”. Note 1) User program is User-made S/W for PC. 11.8 The (ASCII Code List) Character Character...
Page 164: Protective Functions
Chapter 12 Troubleshoot and maintenance 12. Troubleshoot and maintenance 12.1 Protective functions Warning! When a fault occurs, the protective function will be activated, and the fault (shown as the below table) displays on keypad. The cause must be corrected before the fault can be cle ared.
Page 165 Chapter 12 Troubleshoot and maintenance The internal electronic thermal of the inverter determines the Electronic thermal overheating of the motor. If the motor is overloaded the inverter protection turns off the output. The inverter cannot protect the motor when driving a motor having more than 4 poles or multi motors. Inverter output is blocked when one of R, S, T is open or the Input phase loss electrolytic capacitor needs to be replaced.
Page 166 Chapter 12 Troubleshoot and maintenance  Internal loop and external fault terminal of inverter Fault display Protective function Description Parameter save It occurs when the parameters changed by user fail to be saved Abnormity in the internal inverter and the power is applied. It occurs when the software is abnormal.
Page 167: Fault Remedy
Chapter 12 Troubleshoot and maintenance When the brake control is used, the output current is lower than Brake control the rated current value of the motor set (I82) and lasts for over abnormity 10s, then the inverter output is turned off and the brake is not opened.
Page 168 Chapter 12 Troubleshoot and maintenance  The load of the inverter exceeds  Increase the capacity of motor and its rated value. inverter. Inverter  Torque compensation is oversize.  Decrease torque compensation. overload Overload protection Fault remedy Protective functions Abnormal causes Countermeasures ...
Page 169 Chapter 12 Troubleshoot and maintenance  Motor is overheated.  Reduce the load or running  The inverter load is greater than the frequency. rated value.  Increase the inverter capacity.  The electric thermal protection is set  The electronic thermal protection Electronic thermal too low.
Page 170 Chapter 12 Troubleshoot and maintenance  Overload protection: IOLT: When HD is used, IOLT (inverter Overload) protection is activated at 150% of the inverter rated current for 1 minute and greater. While ND is used, IOLT (inverter overload) is activated at 110% of the inverter rated current for 1 minute.
Page 171: Precautions For Maintenance And
Chapter 12 Troubleshoot and maintenance 12.3 Precautions for maintenance Warning Ensure to cut off the power supply before maintenance. Make sure to perform maintenance after checking the DC link capacitor has discharged. LTVF-Cx2000 series uses many semiconductor components. Take correct measures against electrostatic damage while installing or inspecting it.
Page 172: Basic Specification
Chapter 13 Product specifications and options 13 Product specifications and options 13.1 Basic specifications  Input and output specifications: single-phase input voltage (230V) LTVF –C1■■■■BAA 0001 0002 0003 0005 0008 0011 Applicable [HP] motor [kW] 0.75 Rated capacity [kVA] Output Rated current[A] ratings Max.
Page 173 Chapter 13 Product specifications and options Input and output specifications: three phase input voltage 415V class  LTVF –C4■■■■BAA 0002 0003 0005 0007 0010 0016 0023 [HP] [kW] 0.75 Applicable motor [HP] [kW] 0.75 11.0 12.2 Rated capacity[kVA] 12.1 16.3 Output Rated 1.25...
Page 174 Chapter 13 Product specifications and options  Control Control type V/F control, sensorless vector control Digital command: 0.01Hz Frequency precision setting Analog command: 0.03Hz (Max. frequency: 60Hz) Operation by digital command: 0.01% of max. output frequency. Frequency precision Analog command operation: 0.1% of max. output frequency. V/F pattern Linear, squared, user V/F Overload capacity...
Page 175: Rated Current Of Inverter Decreasing
Chapter 13 Product specifications and options Protective function Over voltage, low voltage, over current, short circuit, ground current detection, inverter overheat, motor overheat, input and output phase loss, overload protection, Faults communication error, loss of frequency command, hardware fault, cool fan trip, brake error.
Page 176 Chapter 13 Product specifications and options 13.2.2 Influence of input voltage on rated current decreasing Input Voltage (V) Figure 13-3 current decreasing for 230V class inverter Input Voltage (V) Figure 13-4 current decreasing for 415V class inverter 13-5 Cx2000 AC Drive...
Page 177: Side-By-Side Mounting
Chapter 13 Product specifications and options 13.3 drive rating decreasing vs. ambient temperature curve for side-by-side mounting IP20 / UL Open Drive 100% Side-by-side M ounting Ambient Temperature Note : Above graph is for HD models. If ND models to be used for 50 deg C, deration of 2% per deg rise shall be considered above 40 deg C upto 50 deg C.
Page 178 Chapter 13 Product specifications and options 13.5 Remote option  Option“Cx2000 Remote KPD” Display 7 segment LED Operation data and parameter information are displayed. Lit during parameter setting Lit during operation Blinks when a fault occurs Lit during reverse run Lit during forward run Run command STOP: Stop command during operation，...
Page 179 Chapter 13 Product specifications and options Used to move parameter codes or increase parameter values Used to move parameter codes or increase parameter values DOWM Used to switch parameter groups or move the cursor to the LEFT left when the parameters are written Used to switch parameter groups or move the cursor to the RIGHT right when the parameters are written...
Page 180: Remote Keypad
Chapter 13 Product specifications and options Description note  remote keypad  installation panel for remote keypad  connection cable refer to the below table Cx2000 AC Drive 13-9...
Page 181 Chapter 13 Product specifications and options Remote control option set item ITEM Description 60210147W0 Remote 2m,SV-Cx2000[++connection cable 2m] 60210145W0 Remote 3m,SV-Cx2000[++connection cable 3m] 60210146W0 Remote 5m,SV-Cx2000[++connection cable 5m] Attention： It is strongly recommended to use the above remote cable to prevent malfunction due to voltage drop or noise.
Page 182 Chapter 13 Product specifications and options 2）shown as below, connect I/O PCB to remote keypad by connection cable。 Attention · Do not use the remote cable other than standard L&T’. Otherwise, malfunction may occur due to noise input or voltage drop in the keypad. ·...

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