Products
SCK280 frequency inverter catalog
Product features
ln V/Fcontrol mode ,accurate current limited control function makes sure of no over-curmernt fault occurred no matter the drives are running at acceleration/deceleration, or motor locked status, well protecting the drves. Invertor control mode, a curate torque limited control pledges powerful or moderate torque complying with application requirements , protecting machinery well
In V/F separated control mode,output frequency and output voltage can be set respectively fit for applications,such as variable frequency power sources , torque motors , etc.
| Control mode | Starting torque | Speed range | Speed accuracy | Torque response |
| V/F control | 0.5Hz 180% | 1:100 | ±0.5% | |
| Speed-sensorless control 1 | 0.5Hz 180% | 1:100 | ±0.2% | <10ms |
| Speed-sensorless control 2 | 0.25Hz180% | 1:200 | ±0.2% | <10ms |
| Speed-sensor control | OHz 200% | 1:1000 | ±0.02% | <5ms |
Model explanation of SCK280
Model and technical parameters of SCK280
| Three-phase power supply 1140V50/60Hz | ||||
| Model | Power capacity | lnput current | Output current | Applicable motor |
| SCK280-GOK75/P 1K50 | 1.5 | 3.4 | 2.1 | 0.75kW1.5kW |
| SCK280-G1K50/P 2K20 | 3.0 | 5.0 | 3.8 | 1.5kW12.2kW |
| SCK280-G2K20/P 3K00 | 4.0 | 5.8 | 5.1 | 2.2kW/3.0kW |
| SCK280-G4K00/P 5K50 | 5.9 | 10.5 | 9.0 | 4.0kW5.5kW |
| SCK280-G5K50/P 7K50 | 8.9 | 14.6 | 13.0 | 5.5kW7.5kW |
| SCK280-G7K50/P11K0 | 11.0 | 20.5 | 17.0 | 7.5kW11kW |
| SCK280-G11K0/P 15K0 | 17.0 | 26.0 | 25.0 | 11kkW15kW |
| SCK280-G15K0/P18K5 | 21.0 | 35.0 | 32.0 | 15kW118.5kW |
| SCK280-G18K5/P 22K0 | 24.0 | 38.5 | 37.0 | 18.5kW/22kW |
| SCK280-G 22K0/P30K0 | 30.0 | 45.5 | 45 | 22kW/30kW |
| SCK280-G30K0/P 37K0 | 40.0 | 62.0 | 60.0 | 30kW37kW |
| SCK280-G 37K0/P 45K0 | 57.0 | 76.0 | 75.0 | 37kW145kW |
Model and technical specification of SCK280
Power input
| Rated input voltage | Rated input current | Frequency | Allowable voltage range |
| 3-phase 380VAC/40OVAC/415VAC 440VAC/46oVAC/480VAC |
See the table "Model and technical paramelers of SCK280 series' |
50HZ16OHz,tolcrarce ±5% |
Voltage consecutive fluctuation ±10%,short fluctuation-15%~10 %ie.323V~528V voltage out-of-balance rate:<3%,The meets the standards of IEC61800-2 |
Power output
| Applicable motor | Rated current | Oulput vollage | Output frequency | Over load capability |
| See the table "Mlodcl and technical parameters of SCK280serias |
See the table"Model and technical paramelers of ScK280 series" |
3-phase; 0~ rated input voltage,errorless than ±3% |
0.00Hz-600Hz Resolution 0.01Hz |
150% 1min; 180%10s; 200%0.5s, once per 10min. |
Control characteristics
| Contol pattern | V/F control | Speed-sensor less control1 | Sped-sensor less control2 | Spod-sensor controlposition contraol |
| Starting torque | 0.5Hz 180% | 0.5Hz 180% | 0.25H 180% | 0Hz 200% |
| Speed range | 1:100 | 1:100 | 1:200 | 1:100 |
| Speed accuracy | ±0.5% | ±0.2% | ±0.2% | ±0.02 % |
| Speed ripple | - | ±0.3% | ±0.3% | ±0.1% |
| Torque control | No | No | Yes | yes |
| Torque accuracy | - | - | ±7.5% | ±5% |
| Torque response | - | <10ms | <10ms | <.5rms |
| Positioning accuracy | - | - | - | ±1 pulse |
Basic functions
| Start frequency | 0.0OHz~600.00Hz |
| Accel/Decel timo | 0.00s-60000s |
| Carrier fequency | 0.5KHz~16KHz |
| Frequency command modes | Digital setting +Keypad Up/Down; Digital setting+terminal Up/Down.Communication setting. Analog setting: AI1/AI2/AB.T erminal pulse setting. |
| Start methods | Start from starting frequency.DCinjection braking at start |
| Stop methods | Ramp to stop.Coast to stop.DC injection braking at rar |
| Dynamic brake capability | Braking unit triggered voltage:650 ~ 750V. Service time:0.0~100.0s. Brake units of SCK280-4T75 and beloware optionally inbuilt. |
| DCbraking capability | DC braking start frequency: 0.00~600.00Hz. DC braking current: constart torque 0.0~ 100%. DC braking time: 0.0~ 100s. |
| Input terminals | Seven digital input terminal, one of them can be used for pulse input. support dry contact active PIP and IPNI input ;Three analog input terminals, one of them is voltage only, and the other two are voltage(current programmable. |
| Output terminals | One high- speed pulse output(0~50kHZ square wave output and two analog outputs(voltage/current programmable)can output signals such as command frequency, output frequency, etc one digital output.One relay outputs. |
| Encode input terminal | Support 5V/12V voltage grade. Support OC,push-pull, differential signal inputs and such. |
Environment
| Field | Altitude | Temperature | Humidity | Vibration | Storage temperature |
| ln the air, free from direct sunlight,dust,corrosive gas, oil mist,water vapor, dripping orsalt,etc. |
0m-2000m:de-rate 1%forevery100m when above1000 meters. |
-10℃-+40℃ 4o℃~50℃ rated output current de- rates1% for every 1c. |
5%~95%, no cond ensation. |
Lessthan 5.9m/s2(0.6g) |
-40℃~+70℃ |
Others
| Efficiency | lnstallation | Protection grade | Cooling method |
| Rated power,7.5kW and below power class:≥93%; 11KW-45kW Power grade :≥95%; 55kW with _ power class :≥98%; |
all-mounted type(500k and belowyCabinet type(560kW and 630kW) |
IP20 | Forced air cooling |
Description of SCK280 control terminals function
| Category | Analog input | |
| Terminal | Terminal designation | Specification |
| +10V | Aralog input reference voltage |
Voltage:10.3V±3% Maximum output current: 25mA, and resistance of external potentiometer should be larger than 400Ω |
| GND | Analog ground | lsolaled from COM interiorly |
| Al1 | Analog input1 | OmA-20mA: input impedance 500Ω, maximum input current 25mA. 0V~10v: input impedance 22kΩ,rnaxirmurm input voltage 12.5V. 0~20mA/0~10V programmable by switch S2.Factory default:0~10V |
| Al2 | Analog input2 | OmA~20mA: input impedance 500Ω,rmaxirmurm input current 25mA. 0V~10V: input impedance 22kΩ, maximum input voltage 12.5V. switch S3 on control board for jumping between 0-20mA and 0-10V. Factory dafault:0-10v. Realize motor thermaldetection analog input by switch 54. |
| Category | Analog input | |
| Terminal | Terminal dosignation | Specification |
| Analog input1 | 0mA~20mA; impedance 200~500Ω ,0~ 10V; impedance≥10kΩ2. 0mA~ 20mA; input impedance 500Ω，maximum input current 25mA. Switch S5 on control board for jumping between 0 ~ 20mA and 0~ 10V.Factory default:0~ 10V. |
|
| Analog input2 | 0mA~20mA;irmpedance 200~500Ω,0~10V; impedance≥10kΩ. 0mA~20mA;input impedance 500Ω2,maximum input current25mA. Switch S5 on control board forjumping between0~20mAand 0~10V.Factory default ~10V. |
|
| Analog ground | isolated from COM inleriorly |
Description of SCK280 control terminals function
| Category | Terminal | Terminal designation | Specification | |
| Digital output | Y1 | open collector output | voltage range:0-24v | current range:0~50mA |
| Y2/DO | open collector outPulse out | Open collector output: same as Y1 | Pulse output:0-50KHz | |
| Relay output | TATB/TC | Relay output | TA-TB:NC;TA-TC:NO. | Contact capacity: 250VAG3A,30VDC3A. |
| Category | Analog input | ||
| Terminal | Terminal designation | Specification | |
| +24V | +24V | 24v±10%,isolated from GFNIDinteriorly Maximun load 200mA |
|
| OP | Digital input cormmon terminal | Switch betwecn high level and lowlevel.Short-circuited with ±24V at delivery, low value of digitalinput valid, external power input. |
|
| COM | +24V ground | lsolated from GNIDinteriorly | |
| D11~DI6 | Digital input terminals1~=5 | lnput:24VDC,5mA Frequency range:0-200Hz Voltage range:10-30v |
|
| DI7/DI | Digital input/Pulse input | Voltage range:10-30v Digital input: same asDl1-DI6 Pulse input:0.1~50kHz; voltage range: 10-30v |
|
| Category | Terminal 485 interface | Keypad 485 interface |
| lerminal | Terminal designation | Specification |
| 485+ | Differential signal 485+ | Rate: 4800/9600/19200/38400/57600/115200bps Maximum distance: 500m(use standard network cable) |
| 485- | Differential signal 485- | |
| GND | 485 communication shicldcd ground | isolated from COM intcriorly |
SCK280 Wiring diagram of 380V single-phase inverter
Overall and installation dimension
| Input power supply | Model | Dimension(mm) | Mounting aperiure |
||||
| A | B | W | H | D | |||
| Three-phase 380V |
SCK280-G0K75/P 1K50 | 65 | 153 | 166 | 131 | 83 | |
| SCK280-G1K50/P 2K20 | 65 | 153 | 166 | 131 | 83 | ||
| SCK280-G2K20/P 3K00 | 65 | 153 | 166 | 131 | 83 | ||
| SCK280-G4K00/P5K50 | 80 | 233 | 245 | 173 | 120 | ||
| SCK280-G5K50/P 7K50 | 80 | 233 | 245 | 173 | 120 | ||
| SCK280-G7K50/P11K0 | 80 | 233 | 245 | 173 | 120 | ||
| SCK280-G11K0/P 15K0 | 125.5 | 267.5 | 281 | 185 | 145 | ||
| SCK280-G15K0/P 18K5 | 187 | 305 | 320 | 205 | 203 | ||
| SCK280-G18K5/P 22K0 | 187 | 305 | 320 | 205 | 203 | ||
| SCK280-G22K0/P 30K0 | 187 | 305 | 320 | 205 | 203 | ||
| SCK280-G30K0/P37K0 | 187 | 305 | 320 | 205 | 203 | ||
| SCK280-G37K0/P 45K0 | 190 | 410 | 430 | 240 | 250 | ||
Note: the above dimensions are subject to change without prior notice.
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