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EtherNet/IP – Communication profiles 163
Speed Reference (AC/DC drive object)
This attribute is the speed reference for the drive. The units are
scaled by the Speed Scale attribute of the AC/DC drive object. See
parameter
23
ODVA SPEED SCALE
for details.
Scalar mode
When the drive is operating in the scalar mode, the adapter
module provides the drive with a frequency reference. The ODVA
AC/DC drive profile uses rpm units for the speed reference. The
drive frequency reference is calculated as follows:
where
For example, for a 4-pole 60 Hz motor (Mss = 1800 rpm) with a
unit of 1 rpm and an ODVA Speed Reference of 900, the drive
frequency reference is:
Dfr = Drive Frequency Reference in Hz
Osr = ODVA Speed Reference
Us
= ODVA Speed Unit (see
23
ODVA SPEED SCALE
on page
125
)
Mf
= Motor Nominal Frequency in Hz
Mss = Motor Synchronous Speed in rpm (not Motor Nominal Speed).
Mss
Mf
Us
Osr
Dfr
×
×
=
Hz
30
rpm
1800
Hz
60
rpm
1
900
Mss
Mf
Us
Osr
Dfr
=
×
×
=
×
×
=
Summary of Contents for FENA-01
Page 4: ......
Page 20: ...20 Safety instructions ...
Page 32: ...32 Introduction to the manual ...
Page 38: ...38 Overview of the Ethernet network and the FENA 01 11 21 module ...
Page 42: ...42 Mechanical installation ...
Page 46: ...46 Electrical installation ...
Page 48: ......
Page 94: ...94 Modbus TCP Communication profiles ...
Page 106: ...106 Modbus TCP Communication protocol ...
Page 112: ...112 Modbus TCP Diagnostics ...
Page 114: ......
Page 154: ...154 EtherNet IP Start up 3 In the Select Module window select ETHERNET MODULE ...
Page 180: ...180 EtherNet IP Communication profiles ...
Page 246: ......
Page 304: ...304 PROFINET IO Start up ...
Page 374: ...374 AppendixA PROFIdriveparametersandI MrecordsofPROFINETIO ...