EtherNet/IP – Start-up 125
23 ODVA SPEED
SCALE
This parameter only applies to the ODVA
AC/DC drive profile. The units of reference and
actual speeds for the ODVA AC/DC drive
profile are given by the formula below.
Speed unit = RPM × 2
(-1 × ODVA speed scale value)
Note: While a wide range of resolutions may be
configured, the actual performance is limited to
the performance capabilities of the drive.
The table below shows the how the drive ODVA
speed scale parameter values correspond to
the ODVA speed scale units.
128
ACS355:
FB PAR 23
ACSM1:
FBA PAR23
ACS850/ACQ810:
FBA par23
ACS880/ACS580:
Speed scale
0…255 Speed scale value of drive parameter
No. Name/Value Description Default
ODVA speed scale value
1)
Speed scale value of
drive parameter
2)
Unit
-5 123 32 RPM
-4 124 16 RPM
-3 125 8 RPM
-2 126 4 RPM
-1 127 2 RPM
0 (default) 128 1 RPM
1 129 0.5 RPM
2 130 0.25 RPM
3 131 0.125 RPM
4 132 0.0625 RPM
5 133 0.03125 RPM
1)
Use the ODVA speed scale value when reading/writing parameter ODVA
SPEED SCALE via AC/DC-drive object, class 2Ah. When written via the
AC/DC drive object, the new value takes effect immediately.
2)
Use the speed scale value of the drive parameter when reading/writing
parameter ODVA SPEED SCALE via the drive control panel, Drive
parameter object, class 90h and Fieldbus configuration object, class 91h.
When written via these methods, the new value takes effect after the drive
is repowered or a “Fieldbus Adapter Parameter refresh” is given.
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