22-35 Low Speed Power [HP]
Range:
Function:
Size related
*
[0.00 - 0.00 hp]
22-36 High Speed [RPM]
Range:
Function:
Size related
*
[0 - par. 4-13 RPM]
22-37 High Speed [Hz]
Range:
Function:
Size related
*
[0.0 - par. 4-14 Hz]
22-38 High Speed Power [kW]
Range:
Function:
Size related
*
[0.00 - 0.00 kW]
22-39 High Speed Power [HP]
Range:
Function:
Size related
*
[0.00 - 0.00 hp]
3.20.3 22-4* Sleep Mode
If the load on the system allows for stop of the motor and
the load is monitored, the motor can be stopped by
activating the Sleep Mode function. This is not a normal Stop
command, but ramps the motor down to 0 RPM and stops
energizing the motor. When in Sleep Mode certain
conditions are monitored to find out when load has been
applied to the system again.
Sleep Mode can be activated either from the No Flow
Detection/Minimum Speed Detection ( must be
programmed via parameters for No-Flow Detection, see the
signal flow-diagram in parameter group 22-2*, No-Flow
Detection) or via an external signal applied to one of the
digital inputs (must be programmed via the parameters for
configuration of the digital inputs, par. 5-1* selecting [66]
Sleep Mode). Sleep mode is activated only when no wake-up
conditions are present.
To make it possible to use e.g. an electro-mechanical flow
switch to detect a no flow condition and activate Sleep
Mode, the action takes place at raising edge of the external
signal applied (otherwise the frequency converter would
never come out of Sleep Mode again as the signal would be
steady connected).
NOTE
If Sleep Mode is to be based on No Flow Detection/Minimum
Speed, remember to choose Sleep Mode [1] in
.
If
is set for Enabled, activating
Sleep Mode will send a command to the cascade controller
(if enabled) to start de-staging of lag pumps (fixed speed)
before stopping the lead pump (variable speed).
When entering Sleep Mode, the lower status line in the Local
Control Panel shows Sleep Mode.
See also signal flow chart in section 22-2*
No Flow
Detection
.
There are three different ways of using the Sleep Mode
function:
130BA255.11
P
f
o
pSL
FC
S
Parameter Description
VLT
®
HVAC Drive Programming Guide
MG.11.CB.02 - VLT
®
is a registered Danfoss trademark
145
3
3
