Model

SHF-18.5K

SHF-22K

SHF-30K

SHF-37K

SHF-45K

SHF-55K

Applicable Motor Capacity

18.5kW

22kW

30kW

37kW

45kW

55kW

Output

Rated Capacity (*1)

26.3kVA

31.9kVA

42.3kVA

51.3kVA

62.4kVA

76.2kVA

Rated Current (*2)

38A

46A

61A

74A

90A

110A

Overload Current Rating

150% 1 min

Rated Output Voltage

3Φ, 380V at 50Hz, 400V at 50Hz, 460V at 60Hz

Input

Rated Voltage and Frequency

3Φ, 380V to 460V at 50Hz or 60Hz

Allowable Fluctuation

Voltage:-15%, +10%   Frequency:±5% Voltage imbalance: 3%max

Power Supply Impedance

1% or more (Use the optional reactor if less than 1%)

Protective Structure

Totally enclosed（IP20）

Cooling Method

Forced air cooling

Weight

12kg

15kg

20kg

25kg

32kg

33kg

Control Function

Control Method

V/f control or sensorless vector control

High-Frequency Carrier

Sine wave PWM (carrier frequency: 1 to 14 kHz) (*3)

Output Frequency Range

0.05 to 600 Hz (starting frequency: 0.05 to 20 Hz variable) (*4)

Frequency Setting Resolution

Digital Setting

0.01 Hz (0.05 to 600 Hz)

Analog Setting

0.1% (10 bits for 0 to 10 V, 4 to 20 mA), 0.2% (9 bits for 0 to 5 V) for maximum output frequency

Frequency Accuracy

Digital Setting

±0.01% of the output frequency (at -10 to + 40°C )

Analog Setting

±0.2% of the maximum output frequency (at 25 ± 10°C ) (*5)

DC Braking

Starting frequency (0.2 to 20 Hz), operation time (0.1 to 10 s), braking force (1 to 10 steps)

Additional Functions

Restart after momentary power failure, flying start, multi-speed operation, frequency jump, auto alarm recovery,

PID control operation, simple scheduled operation, energy-saving operation, torque limiter (for sensorless vector control only)

Operation Function

Start/Stop Setting

Operation panel, serial communication (RS485, RS 232C ), control circuit terminals

Frequency Command Setting

Digital Setting

Operation panel, serial communication (RS485, RS 232C ), step setting from terminal board

Analog Setting

2 channels, 0 to 5 V, 0 to 10 V, 4 to 20 mA, variable resistor (5 kΩ, 0.3 W or more)

Input Signals

Frequency command, forward run command, reverse run command, acceleration/deceleration time setting, free-run stop/alarm reset, emergency stop, jogging selection, step frequency setting, operation signal hold, torque limiter (sensorless vector control only)

[Digital input; 8 channels (arbitrary allocation)] [Analog input; 1 channel for voltage, 1 channel for current and voltage]

Output Signals

Contact Output

Alarm batch and multifunctional contact output ( 1C contact, 250 VAC, 0.3 A )

Monitor Signal

Operating, frequency matching, overload alarm, undervoltage, overvoltage, frequency approach

[Open-collector output: 3 channels (arbitrary allocation), Analog output: 2 channels]

LED Display

Frequency, output current, synchronous rotation, load factor, output voltage, pressure, line speed (no units), operating, alarm

Serial Communication I/F

RS485, RS 232C

Function Extension

Software upgrade by RS 232C serial communication supported

External Power Supply Output

24 VDC, 150 mA (control terminal)

Protection Functions

Current limiting, overcurrent shutoff, motor overload, external thermal alarm, undervoltage, overvoltage, momentary power failure, fin overheat, missing phase

Warning Functions

Overvoltage prevention, current limiting during acceleration/deceleration, brake resistor overheat, overload, overheating of radiator fins

Environment

Ambient Temperature

-10 to + 50°C (Remove the top ventilation cover at + 40°C or higher)

Storage Temperature

-20 to + 65°C (*6)

Ambient Humidity

90%RH or less (with no condensation)

Operating Environment

Indoor at 1,000 m or lower altitude (No direct sunlight, corrosive or inflammable gases, oil mist, or dust)