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.
22-42 Wake-up Speed [RPM]
Range:
Function:
Size
related
*
[ par. 4-11 -
par. 4-13 RPM]
To be used if
has been set for
[0] RPM
(parameter not visible if
[1] Hz
is
selected). Only to be used if
parameter 1-00 Configuration Mode
is set for
[0] Speed open loop
and an
external controller applies speed
reference.
Set the reference speed at which
the sleep mode should be activated
or be cancelled.
22-43 Wake-up Speed [Hz]
Range:
Function:
Size
related
*
[ par. 4-12 -
par. 4-14 Hz]
To be used if
has been set for
[1] Hz
(parameter not visible if
[0] RPM
is
selected). Only to be used if
parameter 1-00 Configuration Mode
is set for
[0] Speed 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 activated
or be cancelled.
22-44 Wake-Up Ref./FB Diff
Range:
Function:
10 %
*
[0 - 100 %]
Only to be used if
parameter 1-00 Configuration Mode
is set to
[1] Speed 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 going into
sleep mode and canceling the sleep
mode.
22-44 Wake-Up Ref./FB Diff
Range:
Function:
If setting for 20%, the threshold is
the difference between pressure
reference and feedback as follows:
P
Wake − up
= P
Set
− P
Set
× 0.20
22-45 Setpoint Boost
Range:
Function:
0 %
*
[-100 -
100 %]
Only to be used if
parameter 1-00 Configuration Mode
is set to
[1] Speed 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.
Set the desired overpressure/
temperature in percentage of
setpoint for the pressure (P
set
)/
temperature before entering the
sleep mode.
If set to 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 Configuration Mode
is set to
[1] Speed 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.
Parameter Descriptions
VLT® AutomationDrive FC 361
156
Danfoss A/S © 03/2019 All rights reserved.
MG06J202
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Содержание VLT AutomationDrive FC 361
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