Danfoss VLT AutomationVTDrive FC322 Design Manual page 26

Automation VT Drive FC322 Design Guide
2.8.3 Local (Hand On) and Remote (Auto On) Control
The frequency converter can be operated manually via the local control panel (LCP) or remotely via analog/digital inputs or serial bus.
If allowed in par. 0-40 [Hand on] Key on LCP , par. 0-41 [Off] Key on LCP
to start and stop the frequency converter byLCP using the [Hand ON] and [Off] keys. Alarms can be reset via the [RESET] key. After pressing the [Hand
On] key, the frequency converter goes into Hand Mode and follows (as default) the Local reference set by using the LCP arrow keys up [▲] and down
[▼].
After pressing the [Auto On] key, the frequency converter goes into Auto
mode and follows (as default) the Remote reference. In this mode, it is
possible to control the frequency converter via the digital inputs and var-
ious serial interfaces (RS-485, USB, or an optional fieldbus). 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 communica-
tion).
Hand Off Reference Site
Reference Site
Auto par. 3-13
LCP Keys
Hand Linked to Hand / Auto
Hand -> Off Linked to Hand / Auto
Auto Linked to Hand / Auto
Auto -> Off Linked to Hand / Auto
All keys Local
All keys Remote
The table shows under which conditions either the Local Reference or the Remote Reference is active. One of them is always active, but both can not be
active at the same time.
NB!
Local Reference will be restored at power-down.
par. 1-00 Configuration Mode determines what kind of application control principle (i.e. Open Loop or Closed loop) is used when the Remote reference
is active (see table above for the conditions).
MG.20.X1.22 - VLT
Remote Site Products - 1-888-532-2706 - www.remotesiteproducts.com
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2 Introduction to VLT Automation VT Drive
, par. 0-42 [Auto on] Key on LCP , and par. 0-43 [Reset] Key on LCP , it is possible
130BP046.10
Active Reference
Local
Local
Remote
Remote
Local
Remote
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is a registered Danfoss trademark
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