Danfoss VLT AQUA Drive FC 200 Instruction Manual page 128

VLT AQUA Low Harmonic Drive Instruction
Manual
NOTE!
It is important that the par. 4-13
speed of the motor!
It is important to do the auto set-up before configuring the integrated PI controller as settings will be reset when changing from closed
to open-loop in par. 1-00
NOTE!
Carry out the tuning with the same settings in par. 1-03
22-21 Low Power Detection
Option:
[0] * Disabled
[1] Enabled
22-22 Low Speed Detection
Option:
[0] * Disabled
[1] Enabled
22-23 No-Flow Function
Common actions for Low Power Detection and Low Speed Detection (Individual selections not possible).
Option:
[0] * OFF
[1] Sleep Mode
[2] Warning
[3] Alarm
NOTE!
Do not set par. 14-20
the drive to continuously cycle between running and stopping when a No Flow condition is detected.
NOTE!
If the drive is equipped with a constant speed bypass with an automatic bypass function that starts the bypass if the drive experiences
a persistent alarm condition, be sure to disable the bypass' automatic bypass function, if [3] Alarm is selected as the No-Flow Function.
Motor Speed High Limit [RPM]
Configuration Mode
.
Torque Characteristics
Function:
If selecting Enabled, the low power detection commissioning must be carried out in order to set the
parameters in group 22-3* for proper operation!
Function:
Select Enabled for detecting when the motor operates with a speed as set in par. 4-11
Low Limit [RPM]
or par. 4-12
Function:
The drive will enter sleep mode and stop when a No Flow condition is detected. See parameter
group 22-4* for programming options for sleep mode.
The drive will continue to run, but activate a No-Flow Warning [W92]. A drive digital output or a
serial communication bus can communicate a warning to other equipment.
The drive will stop running and activate a No-Flow Alarm [A 92]. A drive digital output or a serial
communication bus can communicate an alarm to other equipment.
Reset Mode to [13] Infinite auto reset when par. 22-23
®
MG.20.T1.22 - VLT is a registered Danfoss trademark
6 How to Program the Low Harmonic Drive
or par. 4-14 Motor Speed High Limit [Hz]
, as for operation after the tuning.
Motor Speed Low Limit [Hz]
.
No-Flow Function is set to [3] Alarm. Doing so will cause
is set to the max. operational
6
Motor Speed
6-35