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Integrated Triple Whistle Solution

The power of multiple Whistle servo drives in a single solution

Elmo's TRW-WHI (TRW) is an integrated solution for X, Y, Z applications. A highly compact product, it combines three Whistle servo drive controllers in one package and operates using a single AC/DC power supply with a shunt regulator. The TRW-WHI is offered as two different models to provide maximum DC voltage of either 60 or 100 V. Both models support up to20 amps continuous current.

The TRW-WHI operates from an AC/DC power source in current, velocity, position and advanced position modes, with permanent-magnet synchronous brushless motors, DC brush motors, linear motors or voice coils. The solution is designed for use with any type of sinusoidal and trapezoidal commutation with vector control.

As with other Elmo SimplIQ digital products, the TRW-WHI can be easily set up and tuned using Elmo's Composer software tools.



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Product Features

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
Velocity Control	Fully digital Programmable PI and FFW (feed forward) control filters Sample rate two times current loop sample time "On-the-fly" gain scheduling Automatic, manual and advanced manual tuning and determination of optimal gain and phase margins
Position Control	Programmable PIP control filter Programmable notch and low-pass filters Position follower mode for monitoring the motion of the slave axis relative to a master axis, via an auxiliary encoder input Pulse-and-direction inputs Sample rate four times current loop sample time Fast event capturing inputs
Advanced Position Control (in Advanced model only)	Position-based and time-based ECAM mode that supports a non-linear follower mode, in which the motor tracks the master motion using an ECAM table stored in flash memory PT and PVT motion modes Dual (position/velocity) loop Fast output compare OC)
Communication Options	RS-232 serial communication CANopen for fast communication in a multi-axis distributed environment
Feedback Options	Incremental Encoder - up to 20 Mega-Counts (5 Mega-Pulse) per second Digital Halls - up to 2 KHz Incremental Encoder with Digital Halls for commutation - up to 20 Mega-Counts per second for encoder Interpolated Analog Sine/Cosine Encoder - up to 250 KHz (analog signal) Internal Interpolation - up to x4096 Automatic Correction of amplitude mismatch, phase mismatch, signals offset Auxiliary emulated, unbuffered, single-ended, encoder output Resolver Programmable 10~15 bit resolution Up to 512 Revolution Per Second (RPS) Auxiliary emulated, unbuffered, single-ended, encoder output Tachometer, Potentiometer Elmo drives provide supply voltage for all the feedback options
Fault Protection	Software error handling Status reporting for a large number of possible fault conditions Protection against conditions such as excessive temperature, under/over voltage, loss of commutation signal, short circuits between the motor power outputs and between each output and power input return Recovery from loss of commutation signals and from communication errors
Dimensions	227 x 28 x 140 mm (8.93" x 1.10" x 5.51")

Product Catalog Number

Standard and Advanced Models

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

Downloads:

Standards

CE Declaration

Product Drawings

TRIO-WHI(TRW) Documentation

Installation Guide

SimplIQ Documentation

Application Notes

Soldering and Cleaning

Software