Troubleshooting guide

MOBILE ANORAD GANTRY SYSTEM
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2 SAX-5/230 Digital Servo Amplifier (X & Y Axis)
The Saxophone series of servo amplifiers for Permanent Magnet Synchronous Motors
(PMSM) incorporates digital velocity loop, digital current loop and sinusoidal
commutation. Permanent Magnet Synchronous Motors, or Brushless AC (DC) motors
(BLM) are used in high performance drives for machine tools and robotics. Independent
control of the magnetic flux and the torque-generating current component in motors is
provided by sinusoidal control with phase advance algorithms.
The advantages of sinusoidal control are:
1) High motor efficiency due to flux vector control.
2) Smooth torque operation (low torque ripple) even at very low speed enables
high positioning accuracy.
3) Good velocity control under varying load conditions
The Saxophone series’ basic configuration comprises a velocity amplifier with digital
velocity loop targeting the OEM market. All adjustments of the velocity, current, and
PID-filter are done via the communication line (using a PC), eliminating the need for
trimmers. The Saxophone’s power source is either a 3 phase 400 VAC line (SAX-xx/400)
or a 1 or 3 phase 230 VAC line (SAX-xx/230).
The control and auxiliary supplies are derived from a 24V AC/DC supply, which is
isolated from the DC power bus. This feature provides a safe and economical “power
back-up” which is essential for position systems. The Saxophone series meets UL508c
and the relevant CE regulations.
The detail User manual of SAX-5/230 Digital Servo Amplifier can be found in the
website: http://www.elmomc.com/support/manuals/MAN_SAX_UG_EN_0601.pdf