Danfoss vlt aqua Programming Guide

Parameter used
Parameter
number
Speed at
Design Point
KNOWN
Speed at
Design Point
UNKNOWN
Flow Compensation (Par 22-80) + +
Square-Linear Curve Approximation (Par 22-81) + +
Work Point Calculation (Par 22-82) + +
Speed at No Flow (Par 22-83/84) + +
Speed at Design Point (Par 22-85/86) + -
Pressure at No Flow (Par 22-87) + +
Pressure at Rated Speed (Par 22-88) - +
Flow at Design Point (Par 22-89) - +
Flow at Rated Speed (Par 22-90) - +
22-80 Flow Compensation
Option: Function:
[0]
*
Disabled [0] Disabled : Set-Point compensation not active.
[1] Enabled [1]
Enabled :Set-Point compensation is active. Enabling this pa-
rameter allows Flow Compensated Setpoint operation.
22-81 Square-Linear Curve Approximation
Range: Function:
100%
*
[ 0 – 100%]
Example 1:
Adjustment of this parameter allows the shape of the control
curve to be adjusted.
0 = Linear
100% = Ideal shape (theoretical).
22-82 Work Point Calculation
Option: Function:
[0]
*
Disabled Disabled [0] : Work Point Calculation not active. To be used if
speed at design point is known (see table above).
[1] Enabled
Enabled [1] : Work Point Calculation is active. Enabling this pa-
rameter allows the calculation of the unknown System Design
Working Point at 50/60 Hz speed, from the input data set in par.
22-83/84, 22-87, 22-88, 22-89 and 22-90.
2. Parameter Description VLT
®
AQUA Drive Programming Guide
208 MG.20.O2.02 - VLT
®
is a registered Danfoss trademark
2

Danfoss vlt aqua Specifications

General

Supply Voltage	200-240V, 380-500V, 525-600V
Enclosure	IP20
Features	Energy optimization
Approvals	CE, UL, cUL
Input Voltage Range	200-240V, 380-500V, 525-600V
Output Voltage Range	0 to supply voltage
Protection Features	Overvoltage, Undervoltage, Overcurrent, Short circuit, Ground fault
Communication Interfaces	PROFIBUS
Cooling Method	Air-cooled