Product features, Current control – ElmoMC ExtrIQ Digital Servo Drives-Hornet User Manual
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Hornet and Bee Installation Guide
Introduction
MAN-HRBEIG (Ver. 1.304)
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the Bee can be used whenever reduced size and weight are essential to the application. The
Hornet delivers up to 1.6 KW of continuous power or 3.2K W of peak power in a 2.4 in³ (55 X
15 x 46.5 mm or 2.2" x 0.6" x 1.8") 38 cc package. The Bee delivers up to 200 W of continuous
power or 400 W of peak power.
Designed for OEMs, the Hornet and Bee are part of the Elmo’s ExtrIQ product line designed to
endure extended environmental operating conditions. The digital drives are based on Elmo’s
advanced ExtrIQ motion control technology. They operate from a DC power source in current,
velocity, position and advanced position modes, in conjunction with a permanent-magnet
synchronous brushless motor, DC brush motor, linear motor or voice coil. They are designed for
use with any type of sinusoidal and trapezoidal commutation, with vector control. The Hornet
and Bee can operate as stand-alone devices or as part of a multi-axis system in a distributed
configuration on a real-time network.
The drives are easily set up and tuned using Elmo’s Composer software tools. This Windows-
based application enables users to quickly and simply configure the servo drive for optimal use
with their motor. The Hornet and Bee, as part of the ExtrIQ product line, are fully
programmable with Elmo’s Composer motion control language.
Power to the drives is provided by a 11 to 95 VDC isolated DC power source (not included with
the Hornet and Bee). A “smart” control-supply algorithm enables the Hornet and Bee to
operate with only one power supply with no need for an auxiliary power supply for the logic.
If backup functionality is required for storing control parameters in case of power-loss, an
external 11 to 95 VDC isolated supply should be connected (via the +VL terminal on the Hornet
and Bee) providing maximum flexibility and backup functionality when needed.
Note:
This backup functionality can operate from any voltage source within the 11 to 95 VDC
range. This is much more flexible than to be restricted by only using a standard 24 VDC power
supply.
If backup power is not needed, two terminals (VP and VL) are shorted so that the main power
supply will also power the control/logic supply. In this way there is no need for a separate
control/logic supply.
The Hornet and Bee are PCB mounted devices which enable efficient and cost saving
implementation.
2.3. Product Features
2.3.1.
Current Control
•
Fully digital
•
Sinusoidal commutation with vector control or trapezoidal commutation with encoder
and/or digital Hall sensors
•
12-bit current loop resolution
•
Automatic gain scheduling, to compensate for variations in the DC bus power supply