Danfoss VLT AQUA Drive FC 200 Instruction Manual page 98

4. How to program the adjustable frequency
drive
Use the up/down navigation keys to change
the data value. The up key increases the data
value, and the down key reduces the data val-
ue. Place the cursor on the value to be saved
and press [OK].
4
4.1.9. Changing Data Value,Step-by-Step
Certain parameters can be changed step-by-step or by an infinite number of variables. This applies
Motor Power
to
The parameters are changed both as a group of numeric data values and as numeric data values
using an infinite number of variables.
4.1.10. Readout and Programming of Indexed Parameters
Parameters are indexed when placed in a rolling stack.
Par. 15-30 to 15-32 contain a fault log that can be read out. Choose a parameter, press [OK], and
use the up/down navigation keys to scroll through the value log.
Use par. 3-10 as another example:
Choose the parameter, press [OK], and use the up/down navigation keys to scroll through the
indexed values. To change the parameter value, select the indexed value and press [OK]. Change
the value by using the up/down keys. Press [OK] to accept the new setting. Press [Cancel] to
abort. Press [Back] to leave the parameter.
20-81 PID Normal/Inverse Control
Option:
[0]
[1]
98
Motor Voltage
(par. 1-20),
*
Normal
Inverse
MG.20.P1.22 - VLT
VLT AQUA High Power Instruction Manual
4.13: Display example.
Motor Frequency
(par. 1-22) and
Function:
Normal
[0] causes the adjustable frequency drive's output fre-
quency to decrease when the feedback is greater than the
setpoint reference. This is common for pressure-controlled sup-
ply fan and pump applications.
Inverse
[1] causes the adjustable frequency drive's output fre-
quency to increase when the feedback is greater than the
setpoint reference. This is common for temperature-controlled
cooling applications, such as cooling towers.
®
is a registered Danfoss trademark.
(par. 1-23).