APPENDIX 2 - FIELDBUS PARAMETRISATION
vacon • 77
24-hour s358 (0)201 212 575 • Email: [email protected]
10
10.
APPENDIX 2 - FIELDBUS PARAMETRISATION
The following chapter describes briefly how to parametrise the AC drive in order for the motor to be
controllable via fieldbus. These instructions are written for basic applications. For more
information, consult the application-specific manual.
In order for the AC drive to accept commands from the fieldbus network, the control place of the AC
drive has to be set to fieldbus. The default value of the parameter "Control Place" is usually I/O. Note
that if the control unit firmware is updated, the default settings are restored. In addition, some
applications may have the remote speed reference selection set by default to other than fieldbus. In
these cases, the speed reference selection must be set to fieldbus, in order for the speed reference
to be controlled via fieldbus. In EtherNet/IP, the bits NetCtrl, NetRef and NetProc must be set so
that the AC drive will use the sent commands/reference setpoint values. The bits Ctrl From Net and
Ref From Net can be read to determine the actual control / reference place. Note that these bits are
valid only if NetCtrl / NetRef bits are also set.
NOTE!
The motor control mode should be selected to support the used process and profile.
10.1
Fieldbus control and basic reference selection
The following tables list some of the parameters related to fieldbus control in applications for use
via fieldbus. See the application specific manuals for more detailed information.
Parameters can be read and written by using the drive panel, PC Tools or fieldbus protocol (see
Chapter 7.3.1).
10.2
Torque control parametrization
Some extra parametrisation has to be made in order to control the frequency control with torque
control. The following instructions are for the VACON® 100 INDUSTRIAL, see the application-
specific manual for more detailed information.
•
Motor control mode (ID 600) should be configured to "Torque control" (2).
To configure the drive to use correct torque reference, select the parameter "Torque Reference
Selection" to ProcessDataIn1 (9). This can be done with:
- PC-tool or panel (VACON® 100 Family AC drives: P 3.3.2.1) / ID 641
- Vendor Parameter Object
Table 80. Parametrization for VACON® 100 INDUSTRIAL
Parameter name
ID
Value
Default
Panel Tree
Control mode
600
0 = Frequency
1 = Speed
2 = Torque
0
P 3.1.2.1
Remote control place
172
1 = Fieldbus CTRL
0
P 3.2.1
Local / remote
211
0 = Remote
0
P 3.2.2
Fieldbus ref. sel.
122
3 = Fieldbus
3
P 3.3.1.10
