TRIOL CORPORATION
Pump Variable Frequency Drives

Pump Variable Frequency Drives

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Due to a long-term destination for our business, we are involved in providing a wide gamut of Variable frequency drives for Pumps. Our provided range is made by our trained professionals using premium grade components and latest technology in accordance with the international quality norms. In addition to this, our product undergoes different tests under the stern of quality checkers to make sure its flawlessness. Customers can avail the provided Variable frequency drives for Pumps from us at market leading prices.

Frequency inverter pump Triol AT24 is the optimal method that can boost the productivity of pumps. The pump VFD is an outstanding alternative to insure the smooth operation of the equipment. Provisioned with increased life period, these technical solutions also provide flexibility and modernity. AT24 variable speed drive pump gives a simple as well as utilitarian control of the equipment.

Benefits of applying variable speed drives for pumps:
  • Start, control and stop the rotational frequency of pump’s motor
  • Braking and acceleration with assigned rates
  • Reversal or change of state
  • Acceleration, stop and decrement
  • Protection of the motor from overload as well as over-current
  • Motor control via the use of external 2-wire as well as 3-wire sensors
  • Saving control contour of motor
  • Impulsive braking of motor
  • Management of five motors, simultaneously («Cascade controller» macros);
  • Mechanical restarting of asynchronous motor after providing voltage failure or after particular emergencies of motor (custom-made emergencies)
  • Automated control of technology procedures is done via closed-loop system rule and employing built-in PID-controllers.
  • Procedure of asynchronous motor via customized preset diagram in automated or manual mode.

Technical Characteristics: 

Supply voltage

3х380 (-15 % .. +10 %)

Supply frequency

50 Hz (-15 % .. +10 %)

Enclosure

Plastic

Degree of protection

IP20

EMC filter

Built-in

DC reactor

Built-in

Control panel

Graphic, 160X160 pixels, 3’’

Braking resistor

External

PWM frequency / PWM carrier frequency

2 — 10 kHz

Output frequency

0 — 400 kHz

Frequency range for the different motors

0 — 400 kHz

Discrete change of frequency assignments

0.1 Hz

Power factor

> 0,93

Eefficiency

96…97

Starting current

Nnot higher than the calculated input current

Control laws

• linear dependence U/f
• quadratic dependence U/f
• the programmable U/f

Current Limit

Motoring and regenerative

Permissible cable length to the engine

Max 30 m (screened)/ max 50 m (unshielded)

Braking

• DC braking
• combined braking

Speed range

• 1:1000 in a closed-loop system with a speed sensor
• 1:100 in an open-loop system

Speed accuracy (static)

• ± 0,01 % in a closed-loop system
• ± 0.5 % in an open-loop system

Torque accuracy

• ± 5 % in a closed-loop system
• ± 10 % in an open-loop system

Overload characteristics

120 % for 120 seconds

Asynchronous motor control profile

• Vector control in a closed-loop system with a speed feedback;
• Vector control in open-loop system without a speed feedback;
• Voltage / frequency U / F ratio control (scalar control);

Cycle adjusment

PID-controller

Slip compensation

Iimplemented

Local signaling

Operation, ready, fault – green, yellow and red LEDs

Insulation

• isolated control circuit
• insulated custom circuit

Supply

10 В DC, +/- 2 % current not exceeding 30 mA, 24 V, 300 mA

Number of analog inputs

2

Analog input type

Programmable 4..20 mA, 0..5 mA, 0..10 V

Sampling period

4 msec

Number of analog outputs

1

Type Analog Output

Programmable 4..20 mA, 0..5 mA, 0..10 V

Number of digital outputs

4 relay outputs

Type of digital output

• 2 switching types
• 2 normally open type

Number of digital inputs

8

Type of binary input

• 24 V, input resistance: ~ 4 kOhm
• RТС sensor
• Resistance switch 3 kOhm/1,8 kOhm
• emergency Stop

The logic of the digital input

2 digital inputs arbitrary polarity

Acceleration and deceleration

S-shaped acceleration / deceleration, linear adjustable

Type of protection

• Power switch (U, V, W, T)
• МТЗ аппарат (U, V, W) / МТЗ программ (U, V, W)
• Ud max/ Ud min
• Temperature keys
• Loss of one or more phases
• Overheating of the braking resistor
• Motor overload /motor overheating

Dielectric strength

For power circuits and auxiliary circuits having electrical communication with the power circuit – 2500 V

Insulation resistance

> 1 MOhm

Output frequency discreteness

0,1 Hz

Communication protocol

Modbus

Physical interface

2-wire RS-48S for Modbus

Fframeserving

RTU for Modbus

Data transfer rate

• 115200 bps
• 1200-250000 bps
• up to 1 Mbps

Data format

8 bit 1 stop bit, no parity

Addresses number

1..255 of adresses for Modbus

Access method

Slave

Control options

Bluetooth module or Wi-Fi module

Electromagnetic compatibility

EN 55011 class А. group 2. IEC / EN 61800-3. category СЗ with the additional EMC filter. EN 55011 class В, group 1. IEC/EN 61800-3, category С1.

Relative humidity

95 %

The ambient temperature during operation / storage

-20 .. +50 °C / -40 .. +50 °C

Ooperating altitude

to 1000 m

Standards

• EN 61800-3:2004,
• EN 55011,
• EN 61000-6 ¾ ,
• GOST 24607-88.
• GOST 13109-97,
• GOST 15150-69,
• GOST 14254- 96,
• GOST 17516.1-90,
• GOST 12.1.044-89.

Triol AТ24 model

Rated motor power, kW

Rated current of power circuit, A

Total output power of tde inverter, kVA

5К5

5.5

11

7.5

7К5

7.5

15

10

11К

11.0

22

15

15К

15.0

30

18

18К

18.0

36

22

22К

22.0

45

28

30К

30.0

60

38

37К

37.0

75

45

45К

45.0

90

56

55К

55.0

110

72