User guide

22
Overview of Usability Features
Digital Control The 17D drive provides complete digital control of a brushless servo system. This
includes:
l A digital field-oriented current controller operating at an update rate of 62.5 µs
l A fully programmable digital PI-type speed controller operating at an update
rate of 250 µs
l If required by user application, an integrated, digital, position controller with
configurable trajectory generation operating at an update rate of 250 µs is also
available. Up to 180 independent motion tasks can be configured and stored in
the drive depending upon the application requirements.
l An integral step/direction input is provided for use with an external indexer
which allows the 17D drive and the applicable BPH motor to be used as a
stepper motor/drive replacement.
l Full digital evaluation of motor position feedback (primary feedback) from either
a standard two-pole resolver or a high precision Sin-Cos type encoder
(hiperface).
l Full digital emulation of either a standard incremental encoder or a SSI
encoder is also available from position information derived from the primary
feedback device. The drive may also be configured as a slave to follow a
master incremental encoder with a programmable gear ratio.
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