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3.8.2.
AC/DC Drive Object Instance Attributes
Attribute
Name
ID
1
Number of Attributes
2
Attribute List
3
At Reference
4
Net Reference
6
Drive Mode
7
Speed Actual
8
Speed Reference
9
Current Actual
10
Current Limit
11
Torque Actual
15
Power Actual
18
Accel Time
19
Decel Time
20
Low Speed Limit
21
High Speed Limit
26
Power Scale
28
Time Scale
29
Ref From Net
46
Drive on Hours
3.8.3.
AC/DC Drive Object Common Services
Service
Service Name
Code
0x0E
Get_Attribute_Single
0x10
Set_Attribute_Single
3.8.4.
AC/DC Drive Object Specific Services
AC/DC Drive Object provides no object specific services for the slave.
Data
Access
Type
Rules
USINT
Get
Number of Attributes supported
USINT
Get
List of Attributes supported
(ARRAY)
1 = Drive actual at reference (speed or
BOOL
Get
Requests torque or speed reference to
be local or from network.
0 = Set Reference not DN Control
BOOL
Get/Set
1 = Set Reference at DN Control
Note that the actual status of torque or
speed reference is reflected in atrribute
29, RefFromNet.
0 = Vendor specific mode
1 = Open loop speed (Frequency)
2 = Closed loop speed control
USINT
Get
3 = Torque control
4 = Process control (e.g. PI)
5 = Position control
Actual drive speed
INT
Get
(best approximation)
Units: min
Speed reference
INT
Get/Set
Units: min
Actual motor phase current
INT
Get
Units: 100mA
Motor phase current limit
INT
Get/Set
Units: 100mA
Actual torque
INT
Get
Units: Nm
Actual output power
INT
Get
Units: W/2
Acceleration time
UINT
Get/Set
Time from 0 to High Speed Limit
Units: ms/2
Acceleration time
UINT
Get/Set
Time from 0 to High Speed Limit
Units: ms/2
Minimum speed limit
UINT
Get/Set
Units: min
Maximum speed limit
UINT
Get/Set
Units: min
SINT
Get
Power scaling factor.
SINT
Get/Set
Time scaling factor.
Status of torque/speed reference
BOOL
Get
0 = Local torque/speed reference
1 = DeviceNet torque/speed reference
Number of hours
DINT
Get
Units: h
Supported
Class
Instance
Yes
Yes
Returns the contents of the specified attribute.
N/A
Yes
Modifies the value of the specified attribute.
- 41 -
Description
torque reference) based on mode
-1
-1
PowerScale
TimeScale
TimeScale
-1
-1
Description of Service
E6581737
Default
Value
19
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0
0
-
-
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