3.24 PC-##
Pump
Controller
Parameters for configuring the basic Pump Controller for sequence control of multiple pumps. For a more application-
oriented description and wiring examples, see
Application Examples, Pump Controller
in the
design guide
.
To configure the Pump Controller to the actual system and the desired control strategy, follow the sequence starting with
parameter group
PC-0# System Settings
and next parameter group
PC-5#
Alternation Settings
. These parameters can normally
be set in advance.
Parameters in parameter group
PC-2# Bandwidth Settings
and
PC-4# Staging Settings
often depend on the dynamic of the
system and final adjustment to be done at the commissioning of the plant.
NOTICE
The Pump Controller is supposed to operate in closed loop controlled by the built-in PI controller (
[3] closed loop
parameter H-40 Configuration Mode
). If
[0] open loop
is selected in
parameter H-40 Configuration Mode
, all
fixed speed pumps are destaged, but the variable speed pump is still controlled by the frequency converter, now as an
open-loop configuration:
Illustration 3.59 Cascade Controller Sample Set-up
Parameter Description
AF-600 FP
™
Programming Guide
DET-620D
03/2016 All rights reserved.
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