Vacon 100 - Page 40

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6.2.2.4 AC/DC Drive Object, Class 0x2A
AC/DC Drive Object models functions specific to an AC or DC drive.
Instance Attribute “AtReference”
The data type of this attribute is BOOL. The Attribute Identifier of this attribute is 3
d
. This attribute
indicates whether the actual value is at the reference value (e.g. drive actual speed is that which is
requested in the speed reference). If the bit is 1 then this means that the drive actual value is at the
reference value.
Instance Attribute “NetRef”
The data type of this attribute is BOOL. The Attribute Identifier of this attribute is 4
d
. Both read and
write accesses are allowed for this attribute. When the bit is 1, the torque or speed reference is re-
quested to be allocated to this network interface. If the bit is 0, then no such request is made. It
should be noted that the actual assignment of the reference to this network interface is reflected
in the attribute 29
d
.
Instance Attribute “DriveMode”
The data type of this attribute is USINT (8-bit). The Attribute Identifier of this attribute is 6
d
. This at-
tribute allows reading and writing of the motor control mode of the drive. The defined values for this
attribute are:
Table 24.
Class Name AC/DC Drive Object
Class Identifier 2A
h
Class Attributes Id Name Data Type Access Rule
- - - -
Class Services Id Name
- -
Instance Attributes Id Name Data Type Access Rule
3
h
AtReferance Boolean Read-only
4
h
NetRef Boolean Read-write
6
h
DriveMode Unsigned8 Read-write
7
h
SpeedActual Signed16 Read-only
8
h
SpeedRef Signed16 Read-write
0B
h
TorqueActual Signed16 Read-only
0C
h
TorqueRef Signed16 Read-write
16
h
SpeedScale Signed16 Read-write
18
h
TorqueScale Signed8 Read-write
1D
h
RefFromNet Boolean Read-only
Instance Services Id Name
0E
h
Get_Attribute_Single
10
h
Set_Attribute_Single