7 Operation
7.1 Operating Modes
The servomotor can be operated in several modes. The
options described here are based on the use of a master
running under CoDeSys.
It is also possible to operate the servo system under
CANopen DS301 or with the aid of CANopen DS402.
Consult Danfoss for the latter 2 options.
The various operating modes are described in more detail
below.
7.1.1 ISD Inertia Measurement Mode
This mode measures the inertia of an axis. It is used to
measure the inertia of the servomotor and the external
load, and is needed to optimise the control loop settings.
The friction effects are eliminated automatically.
7.1.2 Speed Mode
In speed mode the servomotors are operated exclusively
under speed control. For this, the acceleration, maximum
speed and delay before motion are specified via the
software.
7.1.3 ISD Curve Mode
ISD curve mode is an extended cam profile mode
developed by Danfoss that allows several axes to track a
machine parameter along a precisely predefined curved
path with high accuracy and variable speed.
ISD curve mode functionality is stored in the component
library under CoDeSys.
For more information, see the component library
documentation and the operating instructions for the
Curve Editor.
7.2 Operating Status Indicators
The operating status of the ISD servomotors can be
displayed using the ISD Toolbox software or CoDeSys.
In addition to the status indication on the connection box,
the ISD Toolbox software can be used to query the status
of the servomotors. This requires using a laptop computer
to establish a connection to the CAN bus network. For this
a CAN dongle is needed, which provides the physical
connection between the CAN bus network and the
servomotors.
Use the ISD Toolbox software to display individual
servomotors directly in order to obtain information about
them.
Another option is to use CoDeSys on the master controller
to read out parameters related to the servomotors. For
information about this, read the description of CoDeSys
programming.
Operation
VLT
®
ISD 410 Servomotor Operating Instructions
26
MG75D102 - VLT
®
is a registered Danfoss trademark
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