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Whistle
Highly compact and intelligent digital servo drive
(Up to 20 A/100 V and up to 10 A/200 V)
The Whistle is a series of intelligent miniature digital servo drives for DC brush and brushless motors, linear motors and voice coils. The matchbox-sized servo drive weighs only 1.8 oz (50 g) and supports up to 20 amps continuous current. Its high density allows the
drive to deliver a peak of 3200 W of power and 1600 W of continuous power. Based on
Elmo's SimplIQ Motion Control technology, the Whistle is capable of operating in position, velocity
and current modes and contains a wide range of feedback and I/O options. With Elmo's
Composer software, users can easily perform drive setup, configuration, tuning, analysis and programming. The drive operates on DC power. The Whistle is a PCB mounted device that enables efficient and cost saving implementation.
Elmo also offers a range of Whistle-based products including:
- The DUO and TRIO - integrated Whistle solutions that provide the power of two and three Whistle servo drives, respectively, in a single board
- the Whistle Evaluation Board
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55 x 15 x 46.5 mm
(2" x 0.6" x 1.8")
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Standards
Product Drawings
Whistle Documentation
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Feature |
Units |
15/48 |
20/48 |
1/60 |
2.5/60 |
5/60 |
10/60 |
15/60 |
20/60 |
1/100 |
2.5/100 |
5/100 |
10/100 |
15/100 |
20/100 |
Minimum supply voltage |
VDC |
6 |
7.5 |
12 |
Nominal supply voltage |
VDC |
42 |
50 |
85 |
Maximum supply voltage |
VDC |
48 |
59 |
95 |
Maximum continuous power output |
W |
600 |
800 |
50 |
120 |
240 |
480 |
720 |
960 |
80 |
200 |
400 |
800 |
1200 |
1600 |
Efficiency at rated power (at nominal conditions) |
% |
> 99 |
Maximum output voltage |
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> 95% of DC bus voltage at f=22 kHz |
Auxiliary power supply |
VDC |
11 – 95 VDC (up to 2.5 VA inc. 5 V/200 mA for encoder) |
Amplitude sinusoidal/DC continuous current |
A |
15 |
20 |
1 |
2.5 |
5 |
10 |
15 |
20 |
1 |
2.5 |
5 |
10 |
15 |
20 |
Sinusoidal continuous RMS current limit (Ic) |
A |
10.6 |
14.1 |
0.7 |
1.8 |
3.5 |
7 |
10.6 |
14.1 |
0.7 |
1.8 |
3.5 |
7 |
10.6 |
14.1 |
Peak current limit |
A |
2 x Ic |
Weight |
g (oz) |
50 g (1.8 ounces) |
Dimensions |
mm (in) |
55 x 15 x 46.5 (2" x 0.6" x 1.8") |
Digital in/Digital out/
Analog in |
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6/2/1 |
Mounting method |
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PCB mount |
Feature |
Units |
3/200 |
6/200 |
10/200 |
Minimum supply voltage |
VDC |
24 |
Nominal supply voltage |
VDC |
170 |
Maximum supply voltage |
VDC |
195 |
Maximum continuous power output |
W |
480 |
960 |
1600 |
Efficiency at rated power (at nominal conditions) |
% |
> 99 |
Maximum output voltage |
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> 95% of DC bus voltage at f = 22 kHz |
Auxiliary power supply |
VDC |
12 to 95 VDC
(up to 6 VA inc. 5 V/2 x 200 mA for encoder) |
Amplitude sinusoidal/DC continuous current |
A |
3 |
6 |
10 |
Sinusoidal continuous RMS current limit (Ic) |
A |
2.12 |
4.24 |
7.07 |
Peak current limit |
A |
2 x Ic |
Weight |
g (oz) |
55 g (1.94 oz) |
Dimensions |
mm (in) |
55 x 15 x 46.5 (2" x 0.6" x 1.8") |
Digital in/Digital out/Analog in |
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6/2/1 |
Mounting method |
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PCB mount |
| Product Catalog Number |
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Feature |
Unit |
Specification |
| Servo Modes |
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Current, Velocity, Position, Advanced Position |
| Core |
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SimplIQ |
| Communication |
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RS-232, CANopen: DS402, DS305 |
| PWM switching frequency |
KHz |
22 ± 5% default on the Motor |
| Switching method |
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Advanced Unipolar PWM |
| Current Loop Bandwidth |
KHz |
<2.5 |
| Current Sampling Rate |
KHz |
Up to 16, default 11 |
| Velocity Loop Bandwidth |
Hz |
<350 |
| Velocity Sampling Rate |
KHz |
Up to 8, default 5.5 |
| Position Loop Bandwidth |
Hz |
<80 |
| Position Sampling Rate |
KHz |
Up to 4, Defalut 2.75 |
| Maximum heat sink temperature |
°C (°F) |
85°C - 88°C (185°F - 190°F) |
| Ambient operating temperature |
°C (°F) |
0° ~ 40°C (32° ~ 104°F)
models for extended environmental conditions are available |
| Storage temperature |
°C (°F) |
-20° ~ 85°C (-4° ~ +185°F) |
| Maximum humidity |
% |
90% non-condensing |
| Maximum Operating Altitude |
m (ft) |
up to 10,000 (30,000) |
| Protection level |
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| Standard and Advanced Models |
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Feature |
Standard |
Advanced |
| CANopen interface
(DS 301, DS 402) |
Yes |
Yes |
| Current mode |
Yes |
Yes |
| Velocity mode, follower |
Yes |
Yes |
| Position jog, follower, point-to-point |
Yes |
Yes |
| Pulse and direction input |
Yes |
Yes |
| Dual loop, velocity and position |
No |
Yes |
| PT position versus time mode |
Yes |
Yes |
| PVT position and velocity versus time |
Yes |
Yes |
| ECAM / Follower |
No |
Yes |
| Overall user program size |
2 KB |
32 KB |
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