Elmomc SimplIQ Analog Servo Amplifiers-Violin Operating M Manuel d'utilisateur télécharger pdf (Page 9)

VIO-Velocity - Operating Manual Rev 09/09. Elmo Motion Control

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Servo Amplifier Description

The VIO-Velocity extends the VIO line by adding a velocity loop daughter board. This series of miniature

servo amplifiers for DC brush motors incorporate custom mixed analog/digital ICs and hybridized power

stage.

The product meets UL508c and the suitable CE regulations.

The power stage is implemented on a single ceramic substrate. This design enables very high thermal

conductivity, high current carrying capacity, better EMC and good mechanical strength. The control section

is implemented by dedicated custom ICs that contribute to higher and improved performance.

2.1 Standard Features

 Operation in current mode or velocity mode

 Armature feedback with I*R compensation,

 Tachometer feedback

 Internal DC to DC converter allows for operation from a single supply

 Zero dead band

 Excellent linearity

 Motor current monitor

 Current gain change for low inductance motors

 Current feedback multiplier for low current motors

 External continuous and peak current limits adjustments

 Latch mode for the protective features

 Forward and Reverse limit switches

 Socketed components for adjusting:

• Continuous current limit

• Peak current limit

• Command scaling

• Tachometer scaling

• Velocity loop tuning

 Full array of diagnostic LED’s

 Additional capacitance on the DC bus

 DIP switches for selecting functions such as CGC, CFM, Latch mode, Directional limits, and

Enable

 An encoder feedback option card can be installed on the basic velocity board when required.

2.2 Fault Protection

• Short between the outputs or between each output and the Power Return.

• Over temperature

• Under/over voltage

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Elmomc SimplIQ Analog Servo Amplifiers-Violin Operating M Manuel d'utilisateur Page 9