Danfoss VLT Flow Drive FC 111 User Manual

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Illustration 19: Flow Compensation Set-up
There are 2 methods which can be employed, depending on whether the speed at system design working point is known.
Table 409: Speed at Design Point Known/Unknown
Parameter used
Speed at design point
KNOWN
Speed at design point
UNKNOWN
Parameter 22-80 Flow Compensation
+
+
Parameter 22-81 Square-linear Curve Approximation
+
+
Parameter 22-82 Work Point Calculation
+
+
Parameter 22-84 Speed at No-Flow [Hz]
+
+
Parameter 22-86 Speed at Design Point [Hz]
+
-
Parameter 22-87 Pressure at No-Flow Speed
+
+
Parameter 22-88 Pressure at Rated Speed
-
+
Parameter 22-89 Flow at Design Point
-
+
Parameter 22-90 Flow at Rated Speed
-
+
22-80 Flow Compensation
Default value: [0] Disabled
Parameter type: Option
2-setup: All setups
Conversion index: -
Data type: u_int8
Change during operation: True
Table 410: Option:
[0]
Disabled
Disable flow compensation of setpoint.
[1]
Enabled
Enable flow compensation of setpoint.
22-81 Square-linear Curve Approximation
Default value: 100%
Parameter type: Range
2-setup: All setups
Conversion index: 0
Data type: u_int8
Change during operation: True
Adjust shape of control curve. 0% = straight line, 100% = maximum parabola.
Table 411: Range:
Min: 0%
Max: 100%
Default value: 100%
AU363928304090en-000101 / 130R0982 | 175Danfoss A/S © 2021.07
Parameters
VLT® Flow Drive FC 111
Programming Guide

Danfoss VLT Flow Drive FC 111 Specifications

General

Brand	Danfoss
Model	VLT Flow Drive FC 111
Category	DC Drives
Language	English