164 EtherNet/IP – Communication profiles
Vector mode
When the drive is operating in the vector mode, the adapter
module provides the drive with a speed reference. The ODVA
AC/DC drive profile uses rpm units for the speed reference. The
drive speed reference is calculated as follows:
where
For example, for an ODVA Speed Reference of 900 rpm with a unit
of 0.5 rpm, the drive speed reference is:
Dsr = Drive Speed Reference in rpm
Osr = ODVA Speed Reference
Us = ODVA Speed Unit (see 23 ODVA SPEED SCALE on page 125).
=
450rpm 0.5rpm 900 UsOsr Dsr
=×=×=
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