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5-2-7 AC/DC Drive Objects: Class 2A Hex
AC/DC drive objects are assigned to command-related functions for drive devices such as Inverters
and Servomotors. Command-related data reading and writing, monitor data reading, set data scale
changes, and so on, are all enabled. These functions are shared with similar functions used for remote
I/O, so even if they have been set for message operations they may get rewritten for remote I/O.
H Support Service Codes
Service Code No. (Hex) Service
0E Get attribute single
10 Set attribute single
H Object Details
Instance Attribute Name Content Setting
range
Default Read Write Size
00 01 Object Software
Revision
Indicates class 2A software revisions. The
revision value is advanced whenever there
is a change.
--- 0001 Yes No Word
01
03 At Reference 00: Stopped, accelerating or decelerating
01: At reference 1
--- 00 Yes No Byte
04 Net Reference
(See note 1.)
00: Operate at B1–01 setting.
01: Set B1–01 to “3” and operate with
CompoBus/D.
00, 01 00 Yes Yes Byte
06 Drive Mode 00: Open loop vector (A1–02 = 2)
01: V/f control (A1–02 = 0)
02: V/f control with PG (A1–02 = 1)
03: Flux vector (A1–02 = 3)
00 to 03 00 Yes Yes Byte
07 Speed Actual
Rotational Speed
Monitor
(See note 1.)
Can be referenced in hexadecimal with the
output frequency monitor (U1–02)
minimum unit as 1.
The output frequency monitor minimum
unit can be set by the frequency reference
setting and display units (o1–03).
o1–03= 0: 0.01 Hz
o1–03= 1: 0.01% (100%: Max. frequency.)
o1–03= 2 to 39: 1 r/min (Set number of
poles.)
o1–03= 40 to 39999: Follow individual set
values.
Setting the attribute 16 speed scale
enables a further multiplication factor to be
set for o1–03= 2 to 39: 1 r/min.
--- 0000 Yes No Word
08 Speed Reference
Rotational Speed
Reference
(See note 1.)
Can be set and read in hexadecimal with
the frequency reference minimum unit as
1.
The frequency reference minimum unit can
be set by the frequency reference setting
and display units (o1–03).
o1–03= 0: 0.01 Hz
o1–03= 1: 0.01% (100%: Max. frequency.)
o1–03= 2 to 39: 1 r/min (Set number of
poles.)
o1–03= 40 to 39999: Follow individual set
values.
Setting the attribute 16 speed scale
enables a further multiplication factor to be
set for o1–03= 2 to 39: 1 r/min.
0 to max.
frequency
0000 Yes Yes Word
CompoBus/D Communications Card Operations Chapter 5