VACON0020-3L-0017-2+DLBR+LS60
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The VACON0020-3L-0017-2+DLBR+LS60 drive from Danfoss is part of the VACON 20 Low Voltage Drives series, featuring an input voltage of 208-240 VAC (-15% to +10%) 3-phase. It supports a maximum current of 17.5 A and integrates a brake chopper. The drive operates within -10°C to +50°C and weighs 8 kg net.
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Product Description:
The VACON0020-3L-0017-2+DLBR+LS60 is a low voltage drive from Danfoss that is designed for three phase system of 208 to 240 VAC. Its rated input current is 20.6 A and its continuous output current rating is 17.5 A. The drive’s overload capacity is 150% of input for one minute and its peak overload current value is 26.3 A.
The VACON0020-3L-0017-2+DLBR+LS60 drive provides motor shaft power rating of 4 kW at 230 V that is equivalent to 5 hp and its switching frequency is adjustable up to 16 kHz but by default it is set as 4 kHz. Its output frequency range is 0.00 to 320.00 Hz and its frequency resolution is 0.010 Hz. The unit’s acceleration and deceleration time is adjustable from 0.1 to 3000 seconds and its field weakening frequency is adjustable from 30 to 320 Hz. Its braking torque is 100% with brake chopper option and it is 30% without brake option. The VACON0020 drive offers both without feedback and V/Hz voltage control methods, while its output voltage control range is 0 to Uin. Its mechanical size is MI4 and it comes in a protective enclosure that is rated IP21.
The VACON0020-3L-0017-2+DLBR+LS60 drive includes 6 digital inputs and its input logic level is 18 - 30 V for high, as well as the analog input range is 0 - 10 V for low. Its relay outputs are rated 250 V AC at 3 A and protective fuse size is 25 A. The unit possess PD2 pollution degree and its vibration resistance is testes as 1 G at 15.8 to 150 Hz. It uses force air cooling method with an integral fan and its permitted humidity is 0 to 95% relative, without condensation.
Frequently Asked Questions about VACON0020-3L-0017-2+DLBR+LS60:
Q: Why does the VACON0020-3L-0017-2+DLBR+LS60 use a variable switching frequency up to 16 kHz?
A: Higher switching frequencies reduce audible noise and improve motor torque smoothness. They also allow finer control at higher speeds, making the drive suitable for precision applications.
Q: How does the 100% braking torque with brake chopper benefit the VACON0020-3L-0017-2+DLBR+LS60 in dynamic applications?
A: With the brake chopper, the drive can dissipate regenerative energy efficiently, enabling faster stopping. This is critical for rapid deceleration in hoisting or stop-start systems.
Q: What advantage does field weakening provide in the VACON0020-3L-0017-2+DLBR+LS60?
A: The field weakening extends the speed range above base frequency without overvolting the motor. It enables high-speed operation up to 320 Hz for applications like centrifugal blowers.
Q: Why offer both V/Hz and sensor-less control in the VACON0020-3L-0017-2+DLBR+LS60?
A: The V/Hz is simple and cost-effective for basic applications, while sensor-less control gives better performance in torque, stability, and motor efficiency. This flexibility suits diverse industrial needs.
Q: How does the MI4 mechanical frame of the VACON0020-3L-0017-2+DLBR+LS60 help installation?
A: The MI4 offers a compact, modular footprint that fits into tight control cabinets. Its size also streamlines mounting and wiring, reducing panel space requirements.
