Warning!! 2. The drive contains high voltage that can cause electric shock resulting in personal injury or loss of life.

Transcription

1 ! Warning!! 1. Please read this manual completely before installing the drive. 2. The drive contains high voltage that can cause electric shock resulting in personal injury or loss of life. 3. Be sure to remove all AC power from the drive before servicing. 4. Wait at least 3 minutes after turning off the AC Input power to the drive. If the bus capacitor discharge circuit fails, high voltage can remain in the drive a long time after the AC power is removed. 5. Do not perform high voltage tests such as Megger testing. 6. Service only by qualified personnel. 1

2 Contents User selection guide Chapter 1. Installation Inspection Environmental condition Mounting Dimensions and weights Chapter 2. Standard configuration & Wiring Power terminals Control terminals Basic wiring Dynamic Braking(DB) resistors Chapter 3. Key-pad Functions Using the Key-pad Data setting Chapter 4. Control parameter list Chapter 5. Description of Parameters Main Group Function Group Function Group Protective function Chapter 6. Trouble shooting Chapter 7. Maintenance Precaution Routine inspection Periodical inspection

3 User selection guide - ig specification Type: SV [][][] ig - [] (1) 015-2(1) Applicable [HP] motor [kw] Output rating [kva] [Amp] Max. frequency 400 Hz Output volts 0 to Input voltage Input rating Voltage 3(1) phase 200 to 230 V ( ± 10 % ) Frequency 50 ~ 60 Hz ( ± 5 % ) Control Control method Space Vector PWM Frequency resolution 0.01 Hz Frequency accuracy Digital setting: 0.01% of Max. frequency Analog setting: 0.1 % of Max. frequency V/F ratio Linear, 2.0(on-linear), User programmable Braking torque 100% 100% 50% 20% 20% 20% Overload capacity 150 % for 1 minute Torque boost 0 to 20 % programmable Operation Operating method Key-pad / terminal selective Frequency setting Analog : 0 to 10 V, 4 to 20mA, Potentiometer Accel. / Decel. time 0.1 to 999 sec (1st, 2nd Accel. / Decel. selective) Step operation Up to 8 step (programmable) Programmable Input P1, P2, P3 Input / Output Output MO (frequency, stall, over-load alarm, under-voltage alarm, run/stop) Protection Trip indication over-load, over-voltage, under-voltage, over-current, inverter over-heat, motor over-heat, CPU Error Stall prevention over-current prevention IPF(Instant Power Failure) Under 15msec : continuous operation Over 15msec : automatic restart (selective) Environmental Ambient temperature -10 to 40 (14 to 104 conditions Humidity Under 90 % (non- condensing) Altitude Under 1,000 m Cooling system Forced air cooling 3

4 User selection guide - ig specification Type: SV [][][] ig - [] Applicable [HP] motor [kw] Output rating [kva] [Amp] Max. frequency 400 Hz Output volts 0 to Input voltage Input rating Voltage 3 phase 380 to 460 V ( ± 10 % ) Frequency 50 ~ 60 Hz ( ± 5 % ) Control Control method Space Vector PWM Frequency resolution 0.01 Hz Frequency accuracy Digital setting: 0.01% of Max. frequency Analog setting: 0.1 % of Max. frequency V/F ratio Linear, 2.0(on-linear), User programmable Braking torque 100% 100% 50% 20% 20% 20% Overload capacity 150 % for 1 minute Torque boost 0 to 20 % programmable Operation Operating method Key-pad / terminal selective Frequency setting Analog : 0 to 10 V, 4 to 20mA, potentiometer Accel. / Decel. time 0.1 to 999 sec ( 1st, 2nd Accel. / Decel. selective) Step operation Up to 8 step (programmable) Programmable Input P1, P2, P3 Input / Output Output MO (frequency, stall, over-load alarm, under-voltage alarm, run/stop) Protection Trip indication over-load, over-voltage, under-voltage, over-current, inverter over-heat, motor over-heat, CPU Error Stall prevention over-current prevention IPF(Instant Power Failure) Under 15 msec : continuous operation Over 15 msec : automatic restart (selective) Environmental Ambient temperature -10 to 40 (14 to 104 conditions Humidity Under 90 % (non- condensing) Altitude Under 1,000 m Cooling system Forced air cooling 4

5 INSTALLATI 1. Installation 1.1 Inspection Inspect the drive for any physical damage that may have occurred during its delivery. If any parts of the drive are missing or damaged, contact your LG distributor immediately. Verify the nameplate of the ig drive. Verify that the drive unit matches your order and packing slip. The nomenclature of LG drive is as follows. SV 008 ig -2 U LG Drives Maximum applicable motor capacity ( 10kW) Series name of the drive Input voltage (2:230V or 4:380/460V) UL Listed (Open Type Power Conversion Equipment, suitable for mounting within another enclosure) 1.2 Environmental conditions Verify the ambient condition of the drive mounting location. The ambient temperature range should be 14 to 104 F (-10 to 40 C) for NEMA 1 package and 14 to 113 F (-10 to 45 C) for open chassis package. The relative humidity should be less than 90% (non condensing), below the altitude of 3,280 ft (1,000m). Do not mount the drive in direct sunlight. Isolate the drive from excessive vibration. Protect the drive from moisture, dust, metallic particles, corrosive gases and liquids. 5

6 INSTALLATI 1.3 Mounting The drive must be mounted vertically with sufficient room (horizontal and vertically) from adjacent equipment. ig Drives 6

7 INSTALLATI 1.4 Dimensions and weights Type 1 : SV 004iG-2 3.5lbs(1.6kg) Unit: mm and (inches) 7

8 INSTALLATI Type 2 : SV 008iG-1 / SV 008iG-2 / SV 015iG-2 4.0lbs(1.8kg) / 4.2lbs(1.9 kg) Unit: mm and (inches) 8

9 INSTALLATI Type 3 : SV 015iG-1 / SV 022iG-2 / SV 037iG-2 / SV 040iG-2 SV004iG-4 / SV 008iG-4 / SV 015iG-4 5.9lbs(2.7kg) / 6.4lbs(2.9kg) Unit: mm and (inches) 9

10 INSTALLATI Type 4 : SV 022iG-4 / SV 037iG-4 / SV 040iG-4 7.6lbs(3.45kg) Unit: mm and (inches) 10

11 STANDARD CFIGURATI & WIRING 2. Standard configuration & Wiring 2.1 Power terminals R (S) T B1 B2 U V W Symbol R (S) T B1 B2 Function AC line input terminals, 200/230V class, 380/460V class 1 Phase input Terminals: R and T External Dynamic Braking resistor terminals U V 3-phase output terminals W! Warning : The normal stray capacitance between the drive frame, power devices inside the drive, and AC line can provide a high independence shock hazard. Do not apply power to the drive if the drive frame (Ground terminal ) is not grounded properly. 11

12 STANDARD CFIGURATI & WIRING 2.2 Control terminals 30A 30C 30B FX BX/JOG RST CM VR V1 5G MO EXTG RX CM P1 P2 P3 I FM 5G Symbol V1 VR I FM 5G Function Speed reference signal input (0 ~ +10 V) (Voltage potentiometer connection terminal) Voltage power supply for speed reference signal terminal (+11 VDC) Current speed reference signal input terminal (4 ~ 20 ma) Pulse width modulated output terminal (for external meters) Common terminal for [V1], [I], [FM] FX Forward Run / Stop command terminal RX Reverse Run / Stop command terminal Emergency Stop command terminal BX/JOG Jog drive command terminal RST Fault reset command terminal P1 Multi-function input terminal 1 P2 Multi-function input terminal 2 P3 Multi-function input terminal 3 CM Common terminal for [FX],[RX],[BX/JOG],[P1],[P2],[P3],[RST] MO EXTG 30A 30B 30C Multi-function output terminal Common terminal for [MO] Relay output terminal for fault signal (Normal open contact) Relay output terminal for fault signal(normal close contact) Relay output terminal for fault signal(common terminal) 12

13 STANDARD CFIGURATI & WIRING 2.3 Basic wiring DB RES. (OPTI) *4 1 Phase 230V or 3 Phase 230V/460V MCCB R S T B1 B2 U V W MOTOR IM Forward run/stop Reverse run/stop Emergency stop/jog Fault reset Multi-speed 1 Multi-speed 2 Multi-speed 3 FX RX BX / JOG (Emergency stop / Jog) RST (Reset) P1 P2 P3 (Forward command) (Reverse command) (Multi-function input) Factory "Multi-speed FM 5G + FM Output frequency *2 Digital pulse output (0-10V) 10 kω 1/2 Watt Shield Wire 4 ~ 20 ma Speed signal input *3 CM VR V1 (Common for sequence input) (Power supply for Speed signal input) +11V, 10mA Output (Speed signal input) 0-10V Input I (Current speed input) 4-20mA Input 250 ohm 5G ( Common for VR, V1, I ) 30A 30C 30B MO EXTG Fault output Less than AC 250V, 1A Less than DC 30V, 1A Multi-function output (Factory "Frequency reaching time DC24V, 50mA Common for MO Caution) *1. display main terminals(ratings are depend on the input voltage), display control terminals(ratings are DC24V except specified). *2. Output voltage can be set up to 12V. (Refer to H13 in Function Group 2) *3. Analog speed command can be set voltage, current, and both of them.(see Function code F18) *4. Refer to DB resistor specifications. 13

14 STANDARD CFIGURATI & WIRING 2.4 Dynamic Braking (DB) resistor specifications 230 V Class H.P. Drive Model Resistor Capacity [Watt] Resistor Value [Ohms] Average Braking Torque [%] Permissible Braking Duty [%] Continuous Braking Time [sec] 1/2 SV004iG-2 1 SV008iG-2(1)* SV015iG-2(1)* SV022iG SV037iG SV040iG * (1) means single phase power input models SV008iG-1, SV015iG V Class H.P. Drive Model Resistor Capacity [Watt] Resistor Value [Ohms] Average Braking Torque [%] Permissible Braking Duty [%] Continuous Braking Time [sec] 1/2 SV004iG-4 1 SV008iG SV015iG SV022iG SV037iG SV040iG Dynamic Braking (DB) resistors (Option) Drive Model Resistor Model Drive Model Resistor Model SV004iG-2 SV008iG-2(1)* MCRB 300W 100Ω SV004iG-4 SV008iG-4 MCRB 400W 200Ω SV015iG-2(1)* SV015iG-4 MCRB 400W 160Ω SV022iG-2 SV037iG-2 MCRB 400W 50Ω SV022iG-4 SV037iG-4 MCRB 400W 100Ω SV040iG-2 SV040iG-4 14

15 KEY-PAD 3. Key-pad 3.1 Functions FUNC Key -. Start data change mode -. Complete data change mode Display -. Frequency, Current etc. UP Arrow Key -. Move code in Main Group -. Increase the code in FU1, FU2 -. Increase the data in data change mode DOWN Arrow Key -. Move code in Main Group -. Decrease the code in FU1, FU2 -. Decrease the data in data change mode FUNC RUN STOP RESET RUN FWD REV SET RUN LED -. during operation FWD LED -. Blink when accel / decel in forward run -. during forward run with normal speed REV LED -. Blink when accel / decel in reverse run -. during reverse run with normal speed SET LED -. when data change mode starts -. OFF when data change mode completes STOP/RESET Key -. Stop button -. Reset button when trip takes place RUN Key -. Run command key -. Direction of run is set by Main Group 15

16 USING KEY-PAD 3.2 Using the Key-pad Move in Main Group Move code in Function Group 1 1) FUNC 2) FUNC Move code in Function Group 2 FUNC 1) Keypad displays the speed reference when Run is not engaged, and the speed output during Run sequence. 2) Keypad displays non during normal operation, and fault information when trip takes place. FUNC 16

17 DATA SETTING 3.3 Data setting Data setting in Main Group FUNC FUNC RUN FWD REV SET RUN FWD REV SET RUN FWD REV SET RUN FWD REV SET -. If the data setting is completed, the set LED blinks. Current monitoring in Main Group FUNC FUNC RUN FWD REV SET RUN FWD REV SET RUN FWD REV SET Fault monitoring in Main Group FUNC FUNC RUN FWD REV SET RUN FWD REV SET RUN FWD REV SET RUN FWD REV SET STOP RESET STOP RESET RUN FWD REV SET -. When a fault takes place, Main Group displays the fault information. User can monitor the frequency and Current at the time of drive fault using UP and DOWN arrow Keys. -. To reset the drive, press STOP/RESET key. In order to save the fault data in the drive fault history, the drive must be reset before turning off the input power. 17

18 DATA SETTING Data setting in Function Group 1(2) FUNC FUNC RUN FWD REV SET RUN FWD REV SET RUN FWD REV SET RUN FWD REV SET FUNC FUNC RUN FWD REV SET RUN FWD REV SET 18

19 PARAMETER LIST 4. Control parameter List Main Group Display Function Range Remarks F 1) Unit R 2) Page 60.0 Frequency Reference Displays frequency reference during Stop, and frequency output during Run. 1 st step speed frequency is displayed if in multi-step operation Hz Y 25 ACC 1 st Accel. time st Accel. Time.(refer to H10) 15.0 sec N 25 dec 1 st Decel. Time st Decel. Time.(refer to H11) 20.0 sec N 25 CUr Output current Output RMS current.(refer to F35) 0.0 A X 26 non Trip display OC,Ov,Lv, OLt,OH, EtH,EXt, bx,cpu Display the kind of trip, driving frequency and output current caused during operation non X 26 drc Motor F, r Set the driving direction of F N 26 direction motor and it is valid only when F2(RUN/STOP command) is set by Key-pad. FU1 Function Group Set the control functions concerned with output voltage, current and protection. FU2 Function Group Set the control functions concerned with multi-step operation and terminal input and output. 1 Y 27 ~ 46 1 Y 47 ~ 52 1) 2) Factory setting value It is possible to set or change the parameters while driving. ( Y : Yes, N : No, X : Impossible to set data) 19

20 PARAMETER LIST Function Group 1 Display Function Range Remarks F Unit R Page F 1 Command : Keypad, 1: Terminal (refer to 0 N 27 frequency setting F18) F 2 Run/Stop selection : Key-pad 1 : Fx = FWD, Rx = REV 2 : Fx = Run/Stop, Rx = REV/FWD 1 N 27 F 3 Starting frequency Hz N 28 F 4 Max. frequency Hz N 28 F 5 Base frequency Hz N 28 F 6 V/F pattern : Linear 0 N 28 selection 1 : : User V/F ( refer to F14) F 7 Hold time Hold time for starting frequency 0.0 sec N 29 F 8 FWD boost 0-20 Set torque boost while FWD 2 % Y 30 driving F 9 REV boost 0-20 Set torque boost while REV 2 % Y 30 driving F 10 Accel. pattern : Linear, 1 : S curve 0 N 30 F 11 Decel. Pattern : Linear, 1 : S curve 0 N 30 F 12 Adjustment of Maximum voltage output at % N 31 output voltage % F 13 Stop mode : Ramp Down 1 : DC brake(refer to F 27) 2 : Coast to Stop 0 N 31 F 14 User V/F freq Hz N 31 Freq.1 and Volt. 1 should be F 15 User V/F volt % N 31 set to values that are lower F 16 User V/F freq Hz N 31 than Freq.2 and Volt. 2 F 17 User V/F volt % N 31 F 18 Analog input : Volt. Input ( DC 0 to 10 [V]) 0 N 32 mode selection 1 : Current Input ( DC 4 to 20 [ma]) 2 : Voltage + Current Input F 19 Analog input Response speed of Analog 100 % N 33 filter gain selection input voltage F 20 Analog input gain Analog input voltage boost 100 % N 33 20

21 PARAMETER LIST Function Group 1 Display Function Range Remarks F Unit R Page F 21 Analog input bias Analog input volt. Bias 0 % N 33 F 22 Analog input : Direct (Max. Freq. with 10V 0 N 34 direction setting input) 1 : Inverse(Max. Freq. with 0V input) F 23 High limit freq Operational Max. Freq Hz N 34 F 24 Low limit freq Operational Min. Freq Hz N 34 F 25 Jump freq Impossible to drive within 0.00 Hz N 35 preset freq. Range F 26 Jump band Band setting of jump freq Hz N 35 F 27 DC braking freq DC brake starting freq.(refer to F13) 5.00 Hz Y 36 F 28 DC braking volt % Value within the Max. Output 5 % Y 36 voltage setting F 29 DC braking block Free run time before DC brake 0.0 sec Y 36 Time activation F 30 DC braking time DC braking time 2.0 Y 36 F 31 Slip compensation 0-1 Slip compensation selection (1: Active) 0 Y 37 F 32 Freq. of rated motor slip Refer to nameplate of motor 3.00 Hz Y 37 F 33 Rated motor Refer to nameplate of motor 3.6 A Y 37 current F 34 Motor no-load current Motor current with no load 1.6 A Y 37 F 35 Drive model setting Ex.) 08.1 : 0.75kW, 230V(1phase) 08.2 : 0.75kW, 230V(3phase) 37.4 : 3.7kW, 460V(3phase) 08.2 N 37 F 36 Retry Number 0-10 Number of retrial attempt 0 Y 38 F 37 Retry time Time delay between retries 0.5 sec Y 38 F 38 Relay mode :Non-driving during Lv and Retry 1 : Non-driving during Lv Trip 2 : Non-driving during Retry 3 : Driving in all Trips 0 Y 38 21

22 PARAMETER LIST Function Group 1 Display Function Range Remarks F Unit R Page F 39 Stall mode : No stall Prevention 0 Y 39 1 : Accel., 2 : Normal run 3 : Accel.+ Normal run 4 : Decel. 5 : Accel.+Decel. 6 : Decel.+ Normal run 7 : Accel.+ Decel.+ Normal run F 40 Stall level Current based on stall mode 170 % Y 39 operation ( 100% : drive rated current) F 41 Over load level Terminal output in overload (refer to H2) 100%:drive rated current 150 % Y 40 F 42 Over load time Overload warning signal output 10.0 sec Y 40 time F 43 Over current time Olt trip occurs after preset 60.0 sec Y 40 time when there is 180% load of drive rated current F 44 ETH selection 0-1 Set electronic thermal Protection ( 1 ) 1 Y 41 F 45 ETH level ETH trip occurs when there is more current than preset level. 150 % Y 41 F 46 Motor type 0-1 0:General, 1:special 0 Y 41 F 47 IPF restart 0-1 Speed search after restart 0 Y 42 selection F 48 Speed search Speed search Acceleration 2.0 sec Y 42 Accel. Time Time F 49 Speed search Speed search Deceleration 2.0 sec Y 42 Dec. Time Time F 50 Speed search Free-run time before speed 0.0 sec Y 42 Block Time Search F 51 Reset restart 0-1 Used for terminal operation 0 Y 43 selection F 52 Power on start 0-1 Used for terminal operation 1 Y 43 F 53 Carrier freq. selection :3kHz, 15:15kHz 10 khz N 44 22

23 PARAMETER LIST Function Group 1 Display Function Range Remarks F Unit R Page F 54 Parameter read 0-1 1:Display F54 after copying 0 N 44 parameter from the drive to the Key-pad F 55 Parameter write 0-1 1:Display F55 after copying 0 N 44 parameter from the key-pad to the drive F 56 Parameter initialize 0-1 1:Display F56 after initializing the parameter to the factory setting value 0 N 45 F 57 Parameter Lock U(L) 0-99 U: Unlock, Password : 12 L : Lock, Password : 12 U0 N 45 F 58 AVR Selection 0-1 0: Not selected 1 N 46 1: Selected rt Return to Main Group X Function Group 2 Display Function Range Remarks F Unit R Page H 1 Multi-Input mode : 8 Steps operation ( P1, P2, 0 N 47 selection P3 ) 1 : 4 Steps operation ( P1, P2 ) + External fault signal ( P3 ) 2 : 4 Steps operation ( P1, P2 ) + 2 nd Accel./Decel. ( P3 ) 3 : 2 Steps operation ( P1 ) + 2 nd Accel./Decel. ( P2 ) + External fault signal ( P3 ) ( refer to H 3 ~ H 11 ) H 2 Multi-Function :Frequency reaching time 0 N 48 Output mode selection (Normal open) 1 :Frequency reaching time (Normal close) 2 :Stall operation signal 3 :Overload signal 4 :Under-voltage(Uv) signal 5 :Run/Stop signal H 3 Step 2 Freq Hz Y 48 23

24 PARAMETER LIST Function Group 2 Display Function Range Remarks F Unit R Page H 4 Step 3 Freq Hz Y 48 H 5 Step 4 Freq Hz Y 48 H 6 Step 5 Freq Hz Y 48 H 7 Step 6 Freq Hz Y 48 H 8 Step 7 Freq Hz Y 48 H 9 Step Y 48 H 10 2 nd Accel. Time Acceleration at preset time with H 11 2 nd Decel Time H 12 Multi-Meter mode selection 0-2 the input of P3 ( H1=2 ) or P2 ( 20.0 Sec N 49 H1=3 ) Deceleration at preset time with the input of P3 ( H1=2 ) or P2 ( 20.0 Sec N 49 H1=3 ) 0 :Freq. (10V at Max Freq.) 1 :Output Volt. ( 10V at 220V ) 0 Y 49 2 :Output current (10V at 180 % of the drive rated current ) H 13 Multi Meter Adjust % : 12 V output 100 % Y 49 H 14 FDT Freq Freq. reaching signal setting Freq.(H2) H 15 FDT Band Freq. reaching signal Band H 16 BX / JOG Selection setting : BX Selection 1 : JOG Selection 0 % N 50 0 % N 50 0 N 50 H 17 JOG Frequency Frequency for Jog drive 5.0 Hz X 50 H 18 Input terminal signal External terminal status RX, FX, RST, P3, P2, P1 X 51 H 19 Fault history 1 1st Trip, Freq. and current data X 52 H 20 Fault history 2 2nd Trip, Freq. and current data X 52 H 21 Version No. ROM version No. X rt Return to Main Group X 24

25 MAIN GROUP 5. Description of Parameters 5.1 Main Group Frequency Reference Setting range : 0 ~ Max. Freq.(F4) Hz Function related : F1, F4, H3 ~ H9 When the drive is not in its RUN mode, the keypad displays the drive s set target frequency, and displays the drive s actual output frequency when it is in RUN mode. If the set value of F1 is set to [0=Key], then the target frequency can be set using the keypad. If the frequency F1 is set to [1=analog], terminals either V1 or I (F18) can be used to set the drive s target frequency. 1 st Accelerating time and 1 st Decelerating time Setting range : 0 ~ 999 sec Function related : F4, H10, H11 The Accelerating Time is the time for the drive output to reach its maximum set frequency F4 from 0 Hz. Decelerating Time is the time for the drive output to decrease from the maximum frequency to 0 Hz The 2 nd Accelerating and Decelerating Time can be set in H10 and H11. If Multi-Function Input mode (H1) is set to <2> or <3>, it is possible to run at the 2 nd accelerating and decelerating time by using terminals as P2 and P3. Max. freq. Accel. time Decel. time time 25

26 MAIN GROUP Output current Indicators Display range : 0 ~ 60 A Function related : F35 Displays the output current level of the drive. It is necessary to confirm the drive capacity setting before its operation. It displays correct current LY if the drive setting (F35) and the capacity shown on the nameplate match exactly the same. Fault Indicator The kinds of trip : Oc, OLt, Ov, Lv, OH, EtH, Ext, CPU Function related : F35, F43, F44, H1 It shows <non> during normal run as shown above. When a fault takes place, the keypad displays the level of trip, frequency, and current data that were recorded at the time of fault. See the contents of the drive trip and its measure for more details. Direction setting Setting range : F (Forward ), r (Reverse) Function related : F2 It is valid only when F2 is set to <0> (Key). On the contrary, if F2 is set to <1> or <2>, then the direction of the motor is decided by FX/RX terminal input. 26

27 FUNCTI GROUP Function Group 1 Frequency setting mode Setting range : 0 (Keypad), 1 (Terminal) Function related : F18 ~ F22 0 : Target frequency reference set via keypad. 1 : Target frequency reference set by external signal input via V1 and I terminals. Refer to F18 to F22 description for more information about the analog control. Run, Stop mode Setting range : 0 (Key), 1 (Terminal), 2 (Terminal) Function related : H3 ~ H9 0 : Initiate Run sequence by using the keypad (RUN and STOP/RESET). 1 : Fx = Run Forward Direction Rx= Run Reverse Direction Fx and Rx= No Drive Output 2 : Fx= Run Forward Direction Rx= Run Reverse Direction Fx and Rx= Run Forward Direction Output Freq. Output Freq. Forward Forward Reverse Reverse FX-CM FX-CM RX-CM RX-CM << When F2 is set to 1 >> << When F2 is set to 2 >> 27

28 FUNCTI GROUP 1 Starting frequency, Maximum frequency, Base frequency Setting range : 0.01 ~ 5.00 Hz Starting frequency : Initial output frequency of the drive. Setting range : 40.0 ~ 400 Hz Maximum frequency : The maximum drive output frequency.! Caution: Be sure not to exceed rotating speed allowed by motor. Setting range : 40.0 ~ Max. Freq. Drive rated volts Base frequency : Frequency at maximum drive output voltage. Note: When the value of maximum frequency is Starting freq. Base freq. Max. freq. changed, related data will be regulated according to the new value entered. Note: It is possible to run the drive only if those functions related to the frequency (except for F24, F26, F32, H15) are set to a higher value than that of starting frequency. V/F pattern selection Setting range : 0 (Linear), 1(2.0), 2 (User V/F) Function related : F8, F9,F14 ~ F17 0 : Use Preset constant torque curve which has a constant ratio of the output voltage and the output frequency. It is used for conveyor and packing facilities. 28

29 FUNCTI GROUP 1 1 : Use preset variable torque curve which has a square reduction(2.0) of the output voltage and the output frequency. It is used for fan and pump, etc. 2 : Used for special purpose. It is possible for the users to set the ratio of the output voltage and the output frequency voluntarily. It is also possible to set 2nd points of the frequency and the voltage between the Starting frequency and the Base frequency. Therefore, four points of User V/F pattern in total can be constructed. See from F14 to F17 for more details. Output volts[v] 100% Output volts [V] 100% base freq. bas e freq. << 0 : Linear >> << 1 : 2.0 >> Hold time Range : 0.0 ~ 10.0 sec Function related : F28 When the operation command is, the drive starts to accelerate after the output of DC braking voltage (F28) with the preset hold time. It is used for motor in null rotation or lift load for the acceleration. Output volts DC Braking Voltage Output freq. Hold time RUN 29

30 FUNCTI GROUP 1 Torque boost ( FWD, REV ) Setting range : 0 ~ 20% Function Related : F6 It is possible to set the value of forward and reverse boost separately. This is valid only when V/F pattern (F6) is in Linear or 2.0, while it is not applicable in User V/F pattern. It is used for the hoist load that requires higher-than-normal starting torque boost at low speed..! Warning: If boost value is set too high, it can cause the motor to overheat Accel. pattern, Decel. pattern. Setting range : 0 ( Linear), 1 ( S Curve ) Function related : H10, H11 By selecting the S curve mode, the drive will put out smooth ramp output which will result in less motor brake wear at the time of its release. It is possible to set the accelerating and decelerating pattern separately. If it is set to S curve, it can make accelerating time about 10% longer than actual accelerating and decelerating time. The 2 nd accelerating and decelerating time (H10, H11) also can be set to above pattern. Output req. S Curve Linear Accel. time 30 Decel. time

31 FUNCTI GROUP 1 Output voltage adjustment Output volts 100 % Setting range: 50 ~ 110 % Function related : F5 The drive output voltage can be adjusted to match the motor specification. It is possible to use this feature only if the operating motor has lower voltage requirement than that of voltage source. base freq. 50 % Stop mode selection Setting range : 0 ( Stop by Decel.), 1 ( Stop by DC brake), 2 (Coast to Stop) Function related : dec ( Main Group), H11, F27 ~ F30 0 : The drive decelerates according to dec value in Main Group or to the decelerating time set in H11. 1 : Drive decelerates according to the preset deceleration time until the output reaches down to DC Brake Frequency programmed. Then DC Brake is applied resulting a quick stop for a programmed DC Braking Time. (See from F27 to F30 for more details.) 2 : No drive output is generated to the motor. The motor therefore engages into free run mode. User V/F selection Setting range : 0 ~ Max. Freq., 0 ~ 100 % Function related : F3, F5, F6 31

32 It is possible for the user to construct V/F pattern in accordance with load characteristics. Be sure to set F6 to <2>. FUNCTI GROUP 1 F16 and F17 should be set to a value either higher than or the same as F14 and F15.! Caution: Be sure not to overheat motor by making too much deviation from normal V/F pattern. Output volts 100% normal V/F F17 F15 Starting freq. F14 F16 BaseFreq. Analog input mode selection Setting range : 0 ( Voltage input ), 1 ( Current input ) Function related : F1, F20 ~ F22 Set F1 to <1>.. Preset freq. 0 : Set the command frequency Max. freq. reference using 0 to 10V signal to V1 terminal. 1 : Set the command frequency reference using 4 to 20 ma.signal to I terminal. 2 : Set the command frequency reference using both 4 to 20mA and 0 to 10V. 0 V 10 V << Voltage input >> Preset freq. Max. freq ma 20 ma << Current input >>

33 33

34 FUNCTI GROUP 1 Analog input filter Gain, Bias, Direction setting Setting range : 1 ~ 200 % Input Filter Gain : This is a parameter setting to regulate the response time of the drive compared to the analog input signal. For a rapid response time, it is necessary to set the lower filter gain, while setting the higher filter gain when there is a higher ripple in input voltage. Max. freq. Input voltage 1% 100% 200% time 10V time Setting range : 50 ~ 100 % Input Gain : Input signal multiplier. In order to fine-tune the input signal for a desired output level, this value must be adjusted so that the maximum output frequency is correctly defined. Max. freq. 5V(12mA) 10V(20mA) Setting range : 0 ~ 100 % Input Bias : This sets the offset value for the input signal. If it is set to 50%, the target frequency is set to <maximum frequency / 2> for the input signal of 0V (4mA). Max. freq. 50% 0% 0V(4mA) 10V(20mA) 34

35 FUNCTI GROUP 1 Setting range : 0 ( directly proportional input) 1 (inversely proportional input) 0 : The frequency command is directly proportional to analog input. 1 : The frequency command is inversely proportional to analog input.. Max. freq. Max. freq. 0V(4mA) 10V(20mA) 0V(4mA) 10V(20mA) <<Directly proportional input>> <<Inversely proportional input>> High, Low limit frequency Setting range : 0 ~ Max. Freq. 0 ~ High limit Freq. This is to limit the output frequency of the drive. In case the set target frequency is not within the range of the highest and lowest limit, the drive will run at the highest and lowest limit frequency. It has a normal acceleration and deceleration rate below the lowest limit. Max. freq. High limit Low limit preset freq. 35

36 FUNCTI GROUP 1 Frequency jump, Band Setting range : 0 ~ Max. Freq. 0 ~ 30 Hz This is to skip certain frequency range to avoid mechanical stress that the motor is connected to. As shown in the picture below, if it has a preset jump frequency of 10 Hz and a bandwidth of 5 Hz, it is not possible to set the target frequency within the range of Hz. If the preset frequency increases, the driving frequency jumps when the preset frequency reaches over 15 Hz after running at 5 Hz. On the contrary, if the preset frequency decreases, the driving frequency changes when the preset frequency comes to below 5 Hz after running at 15 Hz. This function is to prevent undesirable resonance that can be caused by the vibration of the gear case / motor and the output frequency of the drive. Driving freq. 5Hz 15Hz preset freq. Decreasing preset freq. Increasing preset freq. 36

37 FUNCTI GROUP 1 DC brake frequency, voltage, block time, brake time Setting range : 0 ~ 20 Hz Output freq. Brake frequency : DC brake frequency. DC Braking Frequency Setting range : 0 ~ 20 % Output volts Brake voltage : DC brake voltage output. DC Braking Voltage t1:block time t2:brake time Setting range : 0 ~ 5 sec t1 t2 Block time : A time delay before generating the output of DC brake voltage. Setting range : 0 ~ 20 sec Function related : F13 Brake time : Amount of continuous DC brake time. In order to enable DC brake, F13 must be set to <1>. Caution : There is a possibility that over-current trip takes place, if the block time of DC brake is set to 0 sec since the DC voltage flows directly to the motor without free-run range. 37

38 FUNCTI GROUP 1 Slip compensation, Rated slip, Rated current, No-load current Setting range : 0 ( NO), 1 ( YES ) Setting range : 0 ~ 5 Hz Rated slip : It is set on the basis of the rated number of rotations shown on the motor slip and the number of poles. If the rated number of rotation is 1740rpm(based on 60Hz), rated slip can be calculated as follows. Rated slip frequency = ( ) x No. of pole / 120 = 2 Hz Setting range : 0.1 ~ 60 A Motor rated current : Rated current shown on the nameplate of motor. Setting range : 0.1 ~ 60 A Motor no-load current : Motor current at no Load condition. It is used for keeping the motor speed constant, regardless of hoist load change. Drive Capacity Setting Setting range : 08.1 (0.75kw), 15.1 (1.5kw) 200V, 1phase 04.2(0.37kw), 08.2(0.75kw), 15.2(1.5kw), 22.2(2.2kw), 37.2(3.7kw), 40.2(4.0kw) - 200V, 3phase 04.4(0.37kw), 08.4(0.75kw), 15.4(1.5kw), 22.4(2.2kw), 37.4(3.7kw), 40.4(4.0kw) - 400V, 3phase Function related : CUr ( Main Group ), F31, F39, F43, F44 This setting must match the name plate data of the drive.! Caution : Since this is used for the function related to current display and various current functions in Main Group, there can be a fault in protection function if it doesn t agree with the drive s nameplate. 38

39 FUNCTI GROUP 1 Auto Retry Setting range : 0 ~ 10 Output freq. Function related : F48 ~ F50 The number of retry : Number of retrial attempts by the drive after resetting itself from a trip. trip Setting range: 0 ~ 10 sec Retry time : Time delay before the drive resets the trip and then engages retry.. t t time t : retry time This is to prevent the motor from stopping itself due to a trip. If there is a trip, it is desirable to get into normal run by using speed search functions (F48 - F50) along with retry sequence. If the trip condition still exists after a complete set of retries, the drive stops generating the output. In this case, the drive must be reset by using RST terminal or the Keypad of the drive. This feature enables hoist and crane to over-ride nuisance trips for its continuous operation. Fault relay mode Setting range : 0 ~ 3 0 : The relay does not close when there is a Lv (low input voltage) trip and during the auto retry sequence. However, it will close when the retry sequence has been completed and the fault condition remains. 1 : The relay does not close in the state of Lv (low input voltage) trip. 2 : The relay does not close during auto retry sequence. 3 : The relay closes for every trip that occur. This function is used to set the operation mode of the fault relay in case of drive trip. Select a value among 0-2, if there is no need for fault relay operation for Lv trip or during auto retry. 39

40 FUNCTI GROUP 1 Stall mode selection, Stall level Setting range : 0 ~ 7 Function related : F35 0 : Stall prevention disable. Output current 1 : Prevents stall during Accel. 2 : Prevents stall during Steady speed. stall level 3 : Prevents stall during Accel.& Steady speed. 4 : Prevents stall during Decel. Output freq. 5 : Prevents stall during Accel.& Decel. 6 : Prevents stall during Decel. & Steady Speed.. 7 : Prevents stall during Accel., time Steady Speed and Decel. Note: In case of using Dynamic Braking resistor, don t set at <4-7>. When the stall prevention function is selected, the acceleration and deceleration time can be longer than not selected. Setting range: 30 ~ 150 % Function related : F35 Output current DC Link voltage stall level Output freq. Output freq. time << Preventing stall during normal speed >> time << Preventing stall during Decel. >> 40

41 FUNCTI GROUP 1 Stall level: This is a ratio based on the drive rated current. Stall prevention during Accel. : If drive detects its output current at the programmed stall level, it stops further acceleration until the output current falls below the stall level. Stall prevention during Steady-speed operation : The drive will start to decelerate the speed if the output current of the drive reaches the stall level during Steady-Speed operation. Once the output current falls below the stall level, the drive will accelerate back to its steady-speed level. Stall prevention during deceleration : The drive temporarily stops decelerating if DC link voltage reaches over permitted level during deceleration. Once DC link voltage falls, the drive will decelerates again. For hoisting applications, this mode is not recommended since the load is fixed. Increasing the deceleration time is rather recommended. This function is to prevent the motor from stalling caused by overload during operation. Overload warning level, Warning time Setting range: 30 ~ 150 % Function : F35, H2 Warning level : This is a ratio based on the drives rated current. The drive will turn the open collector output once this level is detected. Output current warning level Setting range : 0 ~ 30 sec MO-EXTG t t/2 time Warning time : If the output current is over the warning level, the Multi-Function Output terminal (MO) is turned after this preset warning time. The MO terminal is turned OFF after half of the warning time when the output current is below the warning level. Setting range : 0 ~ 60 sec Drive output will cease if the drive output current lasts for more than preset time in excess of current limit level (180% of the drive rated current). 41

42 FUNCTI GROUP 1 Current limit level is shown below and the amount of current is in RMS value. Models 0.37kW 0.75 kw 1.5 kw 2.2 kw 3.7 kw 4.0 kw (1/2HP) (1HP) (2HP) (3HP) (5HP) (5.4HP) 230V Class 5A 9 A 14 A 20 A 29 A 31 A 460V Class 3A 5A 7A 10A 15A 16A ETH (Electronic thermal) selection, Level, Motor type Setting range : 0(NO), 1(Yes) 1 : ETH selection Setting range : 30 ~ 150 % Function related : F35 ETH level : This is the ratio of rated motor and drive output current times constant k. Setting range : 0 ( General), 1 ( Special) Motor type : Set to <0>, if a fan is attached to the motor shaft. If separate power drives the motor fan, set to <1>. It is recommended to consider methods for separate motor cooling effect, especially when operating at low speed. ETH level is set according to the rated current shown on motor s nameplate. The standard value of ETH operation is 60Hz, 1 min. Based on ETH level setting value. Example : Rated current of the motor Setting level(%) = k x x 100 Rated current of the drive ( k = 1.0 : 50 Hz power source, = 1.1 : 60 Hz power source ) 42

43 FUNCTI GROUP 1 If the drive is 2.2kW (11Amp.) and the motor is 2.2kW (8.6Amp.), the ETH level is set to 86% when running with 60Hz. Drive will cease output and make ETH trip if the output current lasts more than 1 minute over 8.6 Ampere. Retry selection in case of IPF, Accel./Decel. time, Block time Setting range:0 (No), 1 (Yes) Retry selection in IPF : The drive will engage in to Auto Retry mode after instantaneous power failure(ipf). This will enable the hoist to lift its load without interruption during instantaneous power failure. Setting range : 0.1 ~ 10 sec Accel./Decel. Time: Defines the accelerating and decelerating time during the speed search sequence. Setting range : 0 ~ 5 sec Input power Block time : A time delay before the drive engages in speed-search mode after IPF, also used when the trip takes place during auto-retry. Motor speed This function is to restore the motor speed back to its previous speed prior to its IPF (more than 15msec.) trip. This mode is not valid if there is low voltage or less than 15msec of IPF. Output voltage t1 t2 t3 time t1 :Block time, t2 :Accel. time, t3 :Decel. time! Caution : This is suitable for the load with a high inertia moment. In case load is with a high friction, it is recommended to use H51 (Reset Restart) 43

44 FUNCTI GROUP 1 Reset Restart Setting range : 0(No), 1 (Yes) Function related : F2 0 : As shown in the picture on the right, the drive will NOT run, even though it is reset WITH FX terminal, after a trip occurs. To run it again, FX should be turned on after it is turned off first. 1 : It starts retry if reset with FX terminal after trip occurs. In this case, careful attention should be given to avoid any accident. Output freq. Trip FX-CM RST << When selecting No >> Power On Start Range : 0(No), 1(Yes) Function related : F2 0 : As shown in the picture on the right, FX terminal command must be TURNED OFF then in order for the drive to engage RUN sequence at the time of power up. 1 : Drive will engage RUN immediately, if the power is TURNED with FX terminal. In this case, careful attention should be given. Input volts Power input Output freq. FX-CM << When selecting No >> 44

45 FUNCTI GROUP 1 Carrier frequency selection Setting range : 3 ~ 15 khz Carrier frequency can be adjusted to decrease audible noise from the motor. However, if set too high, there can be increased electrical noise from the drive, leakage current, and heating of the drive due to switching loss. Parameter read, write Setting range : 0(No), 1(Yes) Parameter read : This is to copy the parameters of the Main Group into the Key-pad. Parameter write : This is to copy the parameter stored in the Key-pad into the Main Group of the drive. This function can be used to easily copy a parameter list to one or more drives. The display of the key-pad will change from <1> to <F54(or F55)> if the transfer of data is successful, while it displays <Err> when error occurs. In this case, press the FUNC key for key-pad to display <0> again. Read ig drive ig Key-pad Key-pad Write Drive main unit 45

46 FUNCTI GROUP 1 Initializing of parameters Setting range: 0(No), 1(Yes) This is to set all the parameters to the original factory setting values. Once the initializing has completed, the display will change from <1> to <F56>.! Caution : The capacity setting of the drive is to set <08.2> after initialization sequence. Be sure to reset the drive s capacity to that of the name plate data of the drive. Protection of parameters Setting range : U 0 ~ U99, L 0 ~ L99 Setting protection function : The original factory setting doesn t have protection function and <57> displays <U0>. With the input of secret number <12>, the protection of parameters is enabled. FUNC FUNC RUN FWD REV SET RUN FWD REV SET RUN FWD REV SET RUN FWD REV SET Removing protection function : If the protection of parameters is preset, <F57> displays <L0>. With the input of secret number <12>, protection function is removed. FUNC FUNC FUNC RUN FWD REV SET RUN FWD REV SET RUN FWD REV SET RUN FWD REV SET FUNC 46

47 FUNCTI GROUP 1 This is to protect the preset parameters by using a secret number. And it is impossible to change the parameters using the Key-pad, if the protection of parameters is already preset. AVR Selection Setting range : 0 (No), 1 (Yes) AVR (Automatic Voltage Regulation) function selection during regenerating mode. Drive regulates the output voltage steadily in Volts/Hz ratio with high dc link voltage caused by regenerated energy. If this function is set at <0>, the drive will be able to decelerate more rapidly compared to <1>. When set at <0>, the high output voltage will cause the motor to higher heat. 47

48 FUNCTI GROUP Function Group 2 Multi-functional input mode Setting range : 0 ~ 3 Function related : H3 ~ H11 0 : Use 8 different step speeds by using terminals P1, P2, and P3. The frequency of each step is set via H3 and H9. 1 st 2 nd 3 rd 4 th 5 th 6 th 7 th 8 th speed speed speed speed speed speed speed speed FX / RX P1 OFF OFF OFF OFF P2 OFF OFF OFF OFF P3 OFF OFF OFF OFF 1 : Use 4 different step speeds using terminals as P1 and P2, while terminal P3 is used as the external fault signal terminal. If terminal P3 is, the drive cuts off the output and displays <Ext>. 2 : Use 4 different step speeds using terminals as P1 and P2, while terminal P3 is used as the 2 nd accelerating and decelerating trigger terminal. As shown in the picture below, if P3 is <OFF>, the drive accelerates according to the time set in ACC of Main Group, while it accelerates according to the time set in H10 if P3 is. 3 : Use 2 different step speeds using P1, while terminal P2 is used for the 2 nd accelerating and decelerating time, and P3 is used for external fault signal input terminal. Output freq. time FX/RX P3 48

49 FUNCTI GROUP 2 Multi-functional output mode Setting range : 0 ~ 4 Function related : F39, F41, H14, H15 0 : When the output frequency of the drive reaches FDT value, MO terminal (normally closed, B) is turned. (refer to H14). 1 : When the output frequency of the drive reaches FDT value, MO terminal (normally open, A) is turned OFF. (refer to H14) 2 : MO terminal is turned, while stall prevention is under way. (refer to F39) 3 : MO terminal is turned, when output current exceeds overload warning level. (refer to F41) 4 : MO terminal is turned, when the input voltage falls below under-voltage level (Lv). 5 : MO terminal is turned, when the drive is running. Multi-step frequency setting Setting range : 0 ~ Max. Freq. Function related : H1 Output freq It is possible to set target frequency from 2 nd step speed up to 8 th step speed, while the 1 st speed is set in Main Group. The picture on the right shows that H1 is set to <0>. FX RX P1 5 time P2 P3 49

50 FUNCTI GROUP 2 The 2 nd accelerating and decelerating time Setting range : 0 ~ 999 sec Function related : H1 It is possible to change the accelerating and decelerating time by using terminal P3. H1 should be set to <2> or <3>. (refer to H1) Multi-function Meter mode setting, Adjustment of meter voltage Setting range : 0 ~ 2 Function related : H13 0 : Generates drive frequency output in the form of 0 to 10V at which 10V representing the maximum frequency. 1 : Generates drive output voltage in the form of 0 to 10V at which 10V representing the maximum drive output voltage. 2 : Generates drive output voltage in the form of 0 to 10V at which 10V representing the maximum drive output current of 180%.. Setting range : 0 ~ 120 % It is possible to adjust the level of multi-function meter, Based on the output of 10V being 100% value, there will be an output of 12V if actual value is 120%. Multi-functional meter voltage 15V average volts(10v) 5.5ms time 50

51 FUNCTI GROUP 2 Frequency detection level, Band Setting range : 0 ~ Max. freq. This sets frequency detection level. If drive output frequency is over the preset level, multifunctional output terminal is turned /OFF. H2 should be set to <0> or <1>. Setting range : 0 ~ 30 Hz Function related : H14 This sets the band of frequency detection level. Output freq. detection freq. band Output freq. detection freq. band MO-EXTG MO-EXTG << When H2 is set to 0 >> << When H2 is set to 1 >> JOG / BX Selection Setting range : 0 (BX Selection), 1 (JOG Selection) Function related : H17 BX (coast to stop) and JOG drive selection. Setting range : 0 400Hz Function related : H10, H11, H16 In case H16 is set to 1 (JOG), BX/JOG terminal is used for jog drive along with FX or RX terminal. The acceleration and deceleration time of jog drive is 2 nd Accel. and 2 nd Decel. time. If H16 is set to 0 (BX), BX/JOG terminal is used for coast to stop. 51

52 FUNCTI GROUP 2 Output freq. JOG Frequency (H17) 2 nd Accel. time 2 nd Decel. time JOG-CM FX-CM RX-CM << JOG drive using BX/JOG terminal>> Input terminal display It is possible to monitor the condition of input terminals by using 7-segment LED of the keypad. For instance, if FX and P2 terminals are (active), LED displays as below. OFF RX FX RST P3 P2 P1 52

53 FUNCTI GROUP 2 Fault History 1, 2 Drive collects and saves fault histories that occur during its operation. If the trip occurs during its running sequence, Main Group displays trip information. If trip is removed by using RESET key, information such as the trip content, frequency output, and current at the time of the trip are saved in H17. It is possible to get the information about the frequency and by using FUNC keys. 53

54 PROTECTIVE FUNCTI 5.4 Protective function Protective function Over-current protection Over-voltage protection Description Drive output is cut off, if the output current reaches over 200% of the drive s rated current! Caution : There is a possibility of damage in power module(igbt). Be sure to check the drive completely before power up sequence Drive output is cut off, if regenerative energy due to the motor deceleration or generative load makes DC voltage (DC Link voltage) over its limit. Current limit protection Drive output is cut off, if the current reached over 180% of the drive s rated current during the time set at F43. (refer to F43). Heat-Sink over-heat Drive output is cut off. Overheat caused by failed cooling effect is detected by the temperature element which is attached to a heat-sink. ETH External fault signal Drive output is cut off when there is any over-current 100% greater than that of rated current (F44 - F46). Overload capacity: 150% / 1 min. External Trip terminal is set. Check H1. Under-voltage protection Since there is a lack of torque or motor overheat caused by the voltage drop of the drive, Drive output is cut off when DC voltage (DC Link Voltage) of control circuit falls below 200V. BX protection BX terminal is closed. Drive will restart when BX is open. CPU error Communication error It cuts off the output of the drive when there is an error in main CPU caused by system noise. It is possible to remove the error by pressing STOP/RESET key. Error in the communication between the main unit and the key-pad, which has no influence to the drive operation. It can be removed by replacing the key-pad. 54

55 TROUBLE SHOOTING 6. Trouble shooting Protective Functions Over-current protection Over-voltage protection Current limit protection Heat-Sink overheat Electronic thermal External trip signal Under-voltage protection Causes Faster Acceleration and Deceleration time than load GD 2 Larger load than the rating of the drive Sudden Run sequence in to coasting motor.. Too short Deceleration time compare to load GD 2 Large regenerative energy on the drive s load side. Too high voltage source. Larger load than the drive s rating. Mistaken setting of the drive capacity(f35) Mistaken setting of V/F pattern. Failed cooling fan or an alien substance. The abnormal condition in the cooling system. High ambient temperature. Larger load than the rated current. Low ETH level. Mistaken setting of the drive capacity.(f35) Mistaken setting of V/F pattern. Existence of External trip. Low voltage source. Larger load than the power capacity. Failed or bad magnetic contactor in power. Measures Extend Acceleration and Deceleration time. Upgrade the drive capacity. Restart drive after motor stops. Extend Deceleration time. Use larger regenerative resistor. Check the power voltage. Reset the motor and the drive capacity in accordance with load. Reset the drive capacity. Adjust V/F pattern. Remove the alien substance or replace the cooling fan. Check the heat-sink. Lower the temperature below 40 C. Upgrade the drive capacity. Adjust ETH level. Reset the drive capacity Adjust V/F pattern. Remove the failed circuit connected with P3 (external trip signal terminal) or check the cause of external trip signal. Check the power voltage. Upgrade power capacity. Replace magnetic contactor. 55