Danfoss ADAP-KOOL AKD 102 Operating Instructions Manual page 76

How to Programme the Frequ...
NOTE
Always set the desired for 20-14 Maximum Reference/Feedb.
before setting the values for the PID controller in par.
group 20-9*.
20-94 PID Integral Time
Range:
30.00 [0.01 -
s 10000.00
*
s]
7 7
22-40 Minimum Run Time
Range:
10 s [0 - 600 s] Set the desired minimum running time for
*
22-41 Minimum Sleep Time
Range:
10 s [0 - 600 s] Set the desired Minimum Time for staying in
*
22-42 Wake-up Speed [RPM]
Range:
0 RPM [par. 4-11
*
- par. 4-13
RPM]
NOTE
Does not work in pack controller mode.
76
ADAP-KOOL
Function:
Over time, the integrator accumulates a
contribution to the output from the PID
controller as long as there is a deviation
between the Reference/Setpoint and
feedback signals. The contribution is propor-
tional to the size of the deviation. This
ensures that the deviation (error)
approaches zero.
Quick response on any deviation is obtained
when the integral time is set to a low value.
Setting it too low, however, may cause the
control to become unstable.
The value set, is the time needed for the
integrator to add the same contribution as
the proportional part for a certain deviation.
If the value is set to 10,000, the controller
will act as a pure proportional controller
with a P-band based on the value set in
20-93 PID Proportional Gain. When no
deviation is present, the output from the
proportional controller will be 0.
Function:
the motor after a start command (digital
input or Bus) before entering Sleep Mode.
Function:
Sleep Mode. This will override any wake up
conditions.
Function:
To be used if 0-02 Motor Speed Unit has
been set for RPM (parameter not visible if
Hz selected). Only to be used if
1-00 Configuration Mode is set for Open
Loop and speed reference is applied by an
external controller.
Set the reference speed at which the Sleep
Mode should be cancelled.
®
Drive Operating Instructions
22-43 Wake-up Speed [Hz]
Range:
0 Hz [par. 4-12
*
- par. 4-14
Hz]
22-44 Wake-up Ref./FB Difference
Range:
10 % [0 - 100
*
%]
NOTE
If used in application where the integrated PI controller is
set for inverse control (e.g. cooling tower applications) in
20-71 PID Performance, the value set in 22-44 Wake-up
Ref./FB Difference will automatically be added.
22-75 Short Cycle Protection
Option:
[0] Disabled Timer set in Interval Between Starts, par. 22-76 is
[1] Enabled Timer set in Interval between Starts, par. 22-76 is
22-76 Interval Between Starts
Range:
300 s [0 - 3600 s] Sets the time desired as minimum time
*
22-77 Minimum Run Time
Range:
0 s [0 - par.
*
22-76 s]
®
MG.11.L4.02 - ADAP-KOOL Drive
Function:
To be used if 0-02 Motor Speed Unit, has been
set for Hz (parameter not visible if RPM
selected). Only to be used if 1-00 Configu-
ration Mode, is set for Open Loop and speed
reference is applied by an external controller
controlling the pressure.
Set the reference speed at which the Sleep
Mode should be cancelled.
Function:
Only to be used if 1-00 Configuration Mode is
set for Closed Loop and the integrated PI
controller is used for controlling the pressure.
Set the pressure drop allowed in percentage
of set point for the pressure (Pset) before
cancelling the Sleep Mode.
Function:
disabled.
enabled.
Function:
between two starts. Any normal start
command (Start/Jog/Freeze) will be
disregarded until the timer has expired.
Function:
Sets the time desired as minimum run time
after a normal start command (Start/Jog/
Freeze). Any normal stop command will be
disregarded until the set time has expired. The
timer will start counting following a normal
start command (Start/Jog/Freeze).
The timer will be overridden by a Coast
(Inverse) or an External Interlock command.