2 introduction, 1 drive description, 2 product features – ElmoMC SimplIQ Digital Servo Drives-Cello Installation Guide User Manual
Page 10: 1 current control, Introduction, Drive description, Product features 2.2.1, Current control
Cello Installation Guide
MAN-CELIG (Ver. 1.602)
10
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Introduction
This installation guide describes the Cello servo drive and the steps for its wiring, installation
and powering up. Following these guidelines ensures maximum functionality of the drive and
the system to which it is connected.
2.1 Drive Description
The Cello is a powerful servo drive that operates in digital current, velocity, position and
advanced position modes, in conjunction with a permanent-magnet synchronous brushless
motor or DC brush motor. The Cello features flexible sinusoidal and trapezoidal commutation,
with vector control. The Cello can operate as a stand-alone device or as part of a multi-axis
network in a distributed configuration.
The Cello drive is set up and tuned using Elmo’s Composer software. This Windows-based
application enables users to quickly and simply configure the servo drive for optimal use with
their motor.
Power to the Cello is provided by a 10 to 195 VDC source. A “smart” control-supply algorithm
enables the Cello to operate with the power supply only, with no need for an auxiliary 24 Volt
supply. If backup functionality is required for storing control parameters in case of power-outs,
an external 24 VDC power supply can be connected, providing maximum flexibility and optional
backup functionality when needed.
Two variations of the Cello are available: the Standard version and the Advanced version, which
features advanced positioning capabilities. Both versions operate with RS-232 and/or CAN
communication.
2.2 Product Features
2.2.1 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