Variable Frequency Drive | Bear-845 | VFD | Variable Speed Drive

Bear 845 Variable Frequency Drive – 845 HP / 630 kW

Variable Frequency Drive - Bear

Bear 845 Variable Frequency Drive – 845 HP / 630 kW

Compared with traditional variable speed drives, the Bear 845 VFD series water pump dedicated variable frequency drive is more efficient and easier to install and operate. In addition, IP65 and IP20 protection level, built-in pump control and protection function into VFD, no need for extra relay, PLC, Easy wire connection, decrease troubleshooting, save raw material, maintenance, and human cost. As a result, it is an ideal variable speed pump drive for new and retrofit applications.

The Bear 845 VFD  variable frequency drive can be used with any standard AC motor, IP65 protection rating Bear 845 VFD could install on the motor directly, no need for extra PLC, relay, contactors, and control box. The built-in application software makes it the most convenient driver for debugging, programming and operation.

The professional control and protection function for the pump and motor, the soft start and stop, incredibly improve the service life of the pump, motor, and pipe. All these features make this compact and easy-to-use drive reliable and energy-saving up to 70%, suitable for almost any application.

For additional variable frequency drive models, visit our VFD page.

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Features

  • Efficient Transformation
  • Efficient Configuration
  • Efficient Energy Use
  • Economy
  • Easy to debug and operate
  • Easy to install

Variable Frequency Drive Technical Specs

Model

Bear 845 VFD                                   

Horsepower 845 hp 

Rated Data

 General tech. specifications

Input

Power Factor

95%

 Number of phases

 AC 3PH

 Control mode

V/F control, non-PG vector control (SVC) PG vector control (FVC)

Rated power (KW)

630

Efficiency

98%

 Voltage range(V)

 400~500

Sound pressure

 50dB

level(1m)

Frequency range (HZ)

47~63

Power loss(KW)

12.6

Rated input

 1065

Speed adjusting

 1:100(SVC) 1:1000(FVC)

current(A)

range

 Power factor

 95%

Speed control

 ±0.5%(SVC) ±0. 02%(FVC)

accuracy

 Output

 

V/F control

Line, multiple points, square V/F curve

, V/F separation

 Number of phases

 AC 3PH

  Start torque

 0.5Hz/100 %

 Rated power (KW)

 630

 Torque boost

Automatic torque boost; manual torque boost 0.1~30%

 Voltage range(V)

 0~500

 DC brake

Supports starting and stopping DC

brake

 Frequency range(HZ)

 0~600

 Traverse control

Traverse controls l function: multiple triangular pulse frequency control

Rated output

 1026

Fixed length

 Setting length control

current(A)

control

 Power factor

 0.95

 Timing control

 Setting time range:0~6500min

 Input & Output options:1AC 220V±15%,

3AC 220V±15 %, 3AC 380V±15%,

3AC 660V±10 %, 3AC 1140V±15 %

 Overload

 120% rated current 60s, 150% rated current 3s

capacity

 Input terminals

1. 4 programmable digital inputs,

2. voltage input 0~10VDC or current input 0~20mA

 Output

 1.  4 relay outputs

2. 1 analog output: voltage output

0~10 VDC or current output 0~20mA

terminals

 Common DC bus: Common DC bus function: multiple inverters can use a common DC bus

 Operation command mode: Keypad control, Terminal control, Serial communication control

 Acceleration and deceleration mode: Line or S-curve, 4 types of acceleration/deceleration time with the range of 0.0~6500. 0 s

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