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[169]
Drive in auto mode
Output is high when the frequency converter is in Hand on mode
(as indicated by the LED light above [Auto on].
[180]
Clock Fault
The clock function has been reset to default (2000-01-01) be-
cause of a power failure.
[181]
Preventive Mainte-
nance
One or more of the Preventive Maintenance Events programmed
in par. 23-10, Preventive Maintenance Item, has passed the
time for the specified action in par. 23-11, Maintenance Action.
[190]
No-Flow
A No-Flow situation or Minimum Speed situation has been de-
tected if enabled in
Minimum Speed Detection
. par. 22-21 and/
or
No-Flow Detection
, par. 22-22.
[191]
Dry Pump
A Dry Pump condition has been detected. This function must be
enabled in par. 22-26, Dry Pump Function.
[192]
End of Curve
Active when an End of Curve condition is present.
[193]
Sleep Mode
The frequency converter/system has turned into sleep mode.
See
Sleep mode
, par. 22-4*.
[194]
Broken Belt
A Broken Belt condition has been detected. This function must
be enabled in par. 22-60, Broken Belt Detection.
[195]
Bypass Valve Control The bypass valve control (Digital / Relay output in the frequency
converter) is used for compressor systems to unload the com-
pressor during start-up by using a bypass valve. After the start
command is given the bypass valve will be open until the fre-
quency converter reaches
Motor speed low limit
, par. 4 -11) .
After the limit has been reached the bypass valve will be closed,
allowing the compressor to operate normally. This procedure
will not be activated again before a new start is initiated and the
frequency converter speed is zero during the receiving of start
signal.
Start Delay
, par. 1-71 can be used in order to delay the
motor start. The Bypass valve control principle:
The below setting options are all related to the Cascade Controller.
Wiring diagrams and settings for parameter, see group 25-** for more details.
[196]
Pipe Filling
Active when the Pipe Fill function is operating. See par. 29-0*.
[200]
Full Capacity
All pumps running and at full speed
VLT
®
AQUA Drive Programming Guide
2. Parameter Description
MG.20.O2.02 - VLT
®
is a registered Danfoss trademark
87
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