Danfoss VLT Midi Drive FC-280P4K0 [98/136] Parameters 22 application functions

Danfoss VLT Midi Drive FC-280P4K0 [98/136] Parameters 22 application functions
4.19 Parameters: 22-** Application
Functions
4.19.1 22-02 Sleepmode CL Control Mode
22-02 Sleepmode CL Control Mode
This parameter is used to set whether feedback is detected for
entering sleep mode in process closed loop.
Option: Function:
[0] * Normal Detect feedback together
with other parameters.
[1] Simplied Don’t detect feedback. Only
check sleep speed and time.
22-40 Minimum Run Time
Range: Function:
10 s* [0 - 600 s] Set the wanted minimum running time for
the motor after a start command (digital
input or bus) before entering sleep mode.
22-41 Minimum Sleep Time
Range: Function:
10 s* [0 - 600 s] Set the minimum time for staying in sleep
mode. This time overrides any wake-up
conditions.
22-43 Wake-Up Speed [Hz]
Range: Function:
10* [ 0 -
400.0 ]
Only to be used if parameter 1-00 Conguration
Mode is set for [0] Open loop, and an external
controller applies speed reference. Set the
reference speed at which the sleep mode
should be deactivated.
22-44 Wake-Up Ref./FB Di
Range: Function:
10 %
*
[0 -
100 %]
Only to be used if parameter 1-00 Conguration
Mode is set for [1] Closed loop, and the
integrated PI controller is used for controlling
the pressure.
Set the pressure drop allowed in percentage of
setpoint for the pressure (P
set
) before canceling
the sleep mode.
22-45 Setpoint Boost
Range: Function:
0 %
*
[-100
-
100 %]
Only to be used if parameter 1-00 Conguration
Mode is set for [1] Closed loop, and the integrated
PI controller is used. In systems with for example
constant pressure control, it is advantageous to
increase the system pressure before the motor is
stopped. This extends the time in which the motor
is stopped and helps to avoid frequent start/stop.
22-45 Setpoint Boost
Range: Function:
Set the desired overpressure/temperature in
percentage of setpoint for the pressure (P
set
)/
temperature before entering the sleep mode.
If setting for 5%, the boost pressure is P
set
x 1.05.
The negative values can be used for cooling tower
control where a negative change is needed.
22-46 Maximum Boost Time
Range: Function:
60
s*
[0 -
600 s]
Only to be used when parameter 1-00 Congu-
ration Mode is set for [1] Closed loop, and the
integrated PI controller is used for controlling the
pressure.
Set the maximum time for which boost mode is
allowed. If the set time is exceeded, sleep mode is
entered, not waiting for the set boost pressure to
be reached.
22-47 Sleep Speed [Hz]
Range: Function:
0* [ 0 - 400.0 ] Set the speed below which the frequency
converter goes into sleep mode.
22-48 Sleep Delay Time
Range: Function:
0 s* [0 - 3600 s]
22-49 Wake-Up Delay Time
Range: Function:
0 s* [0 - 3600 s]
4.19.2 22-6* Broken-belt Detection
Use broken-belt detection in both closed-loop systems and
open-loop systems for pumps and fans. If the estimated
motor torque (current) is below the broken-belt torque
(current) value (parameter 22-61 Broken Belt Torque), the
frequency converter output frequency is above or equal to
15 Hz, and the condition has been active for
parameter 22-62 Broken Belt Delay, parameter 22-60 Broken
Belt Function is performed.
22-60 Broken Belt Function
Option: Function:
Select the actions to be performed if the broken-
belt condition is detected.
[0] * O
[1] Warning The frequency converter continues to run, but
activates warning 95, Broken belt. A frequency
converter digital output or a serial communication
bus communicates a warning to other equipment.
Parameter Descriptions
VLT
®
Midi Drive FC 280
96 Danfoss A/S © 03/2016 All rights reserved. MG07C202
44

Содержание

Похожие устройства

Скачать