LCP keys
Parameter 3-13 Reference
Site
Active
Reference
[Hand On]
Linked to hand/auto
Local
[Hand On]
⇒
(Off)
Linked to hand/auto
Local
[Auto On]
Linked to hand/auto
Remote
[Auto On]
⇒
(Off)
Linked to hand/auto
Remote
All keys
Local
Local
All keys
Remote
Remote
Table 11.1 Local and Remote Reference Configurations
11.2.2 Remote Handling of References
Remote handling of reference applies to both open-loop
and closed-loop operation. See
Up to 8 internal preset references can be programmed into
the drive. The active internal preset reference can be
selected externally through digital control inputs or
through the serial communications bus.
External references can also be supplied to the drive, most
commonly through an analog control input. All reference
sources and the bus reference are added to produce the
total external reference.
The active reference can be selected from the following:
•
External reference
•
Preset reference
•
Setpoint
•
Sum of the external reference, preset reference,
and setpoint
The active reference can be scaled. The scaled reference is
calculated as follows:
Reference = X + X × Y
100
Where X is the external reference, the preset reference, or
the sum of these references, and Y is
parameter 3-14 Preset
Relative Reference
in [%].
If Y,
parameter 3-14 Preset Relative Reference
, is set to 0%,
the scaling does not affect the reference.
Basic Operating Principles ...
VLT® AutomationDrive FC 302
176
Danfoss A/S © 01/2018 All rights reserved.
MG38C202
11
11
