Danfoss VLT FC 102 Programming Manual page 497

Programming Guide | VLT® HVAC Drive FC 102
Option Name
[0*] Off
[1] Sleep mode
[2] Warning
[3] Alarm
22-24 No-flow Delay
Default value: 10 s
Setup:
All setups
Data type: Uint16
Set the time that low power/low speed must stay detected to activate a signal for actions. If detection disappears before the time runs
out, the timer is reset.
22-26 Dry Pump Function
Default value: [0] Off
Setup: All setups
Data type:
Uint8
Select the action for dry-pump operation. To use the dry-pump detection:
Enable low-power detection in parameter 22-21 Low Power Detection.
l
Commission low-power detection using either parameter group 22-3* No-flow Power Tuning or parameter 22-20 Low Power Auto Set-
l
up.
© 2024.10
Description
Do not set parameter 14-20 Reset Mode to [13] Infinite
auto reset when parameter 22-23 No-flow Function is set to
[3] Alarm . Doing so causes the drive to continuously cycle
between running and stopping when a no-flow condition
is detected.
Disable the automatic bypass function of the bypass if
the drive has a constant-speed bypass with an
l
automatic bypass function starting the bypass if a
persistent alarm condition occurs, AND
[3] Alarm is selected as the no-flow function.
l
The drive enters sleep mode and stops when a no-flow
condition is detected. See parameter group 22-4* Sleep Mode for
programming options for sleep mode.
The drive continues to run but activates a no-flow warning (
warning 92, NoFlow ). A digital output or a serial communication
bus can communicate a warning to other equipment.
The drive stops running and activates a no-flow alarm ( alarm 92,
NoFlow ). A drive digital output or a serial communication bus
can communicate an alarm to other equipment.
Parameter type:
Conversion index:
Change during operation:
Parameter type:
Conversion index:
Change during operation:
AU430028034214en-001901 / 130R0310 |
Parameter Descriptions
NOTICE
NOTICE
Range, 1 - 600 s
0
True
Option
–
True
497