Danfoss VLT AQUA Drive Design Manual page 21

VLT ® AQUA Drive Design Guide
After pressing the [Auto On] key, the adjust-
able frequency drive goes into auto mode and
follows (as default) the remote reference. In
this mode, it is possible to control the adjust-
able frequency drive via the digital inputs and
various serial interfaces (RS-485, USB, or an
optional serial communication bus). See more
about starting, stopping, changing ramps and
parameter set-ups, etc. in par. group 5-1*
(digital inputs) or par. group 8-5* (serial com-
munication).
Hand Off
Auto
LCP Keys
Hand
Hand -> Off
Auto
Auto -> Off
All keys
All keys
The table shows under which conditions either the local reference or the remote reference is
active. One of them is always active, but both cannot be active at the same time.
Par. 1-00
loop or closed-loop) is used when the remote reference is active (see table above for the
conditions).
Reference Site
Par. 3-13
Linked to Hand/Auto
Linked to Hand/Auto
Linked to Hand/Auto
Linked to Hand/Auto
Local
Remote
Configuration Mode determines what kind of application control principle (i.e., open-
MG.20.N2.22 - VLT ® is a registered Danfoss trademark.
2. Introduction to the VLT AQUA Drive
Active Reference and Configuration
Mode
The active reference can be either the local
reference or the remote reference.
In par. 3-13 Reference Site,
ence can be permanently selected by selecting
Local
[2].
To permanently select the remote reference,
Remote
select [1]. By selecting
Hand/Auto
[0] (default), the reference site will
depend on which mode is active. (Hand Mode
or Auto Mode).
Active Reference
Local
Local
Remote
Remote
Local
Remote
2
130BP046.10
the local refer-
Linked to
21