[161]
Running reverse
The output is high when the frequency converter is running counter clockwise (the logical product
of the status bits ‘running’ AND ‘reverse’).
[165]
Local reference active
Output is high when par. 3-13
Reference Site
= [2] Local or when par. 3-13
Reference Site
= [0]
Linked to hand auto
at the same time as the LCP is in Hand on mode.
[166]
Remote reference active
Output is high when par. 3-13
Reference Site = Remote
[1] or
Linked to hand/auto
[0] while the
LCP is in [Auto on] mode.
[167]
Start command active
Output is high when there is an active Start command. (I.e.[Auto On] and a start command via
digital input or bus is active, or [Hand On].
NB!
All inverse Stop/Coast commands must be inactive.
[168]
Drive in hand mode
Output is high when the frequency converter is in Hand on mode (as indicated by the LED light
above [Hand on].
[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) because of a power failure.
[181]
Preventive Maintenance
One or more of the Preventive Maintenance Events programmed in par. 23-10, Preventive Mainte-
nance 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 detected 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 compressor during start-up by using a bypass valve. After the start command
is given the bypass valve will be open until the frequency 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:
T
ime
REF
M
in
S
p
eed
ON
T
ime
T
ime
OFF
ON
OFF
Star
t
St
o
p
1
3
0
B
A2
5
1
.1
0
S
p
eed
The below setting options are all related to the Cascade Controller.
Wiring diagrams and settings for parameter, see group 25-** for more details.
2 Parameter Description
VLT
p
Automation VT Drive FC322
Programming Guide
82
MG.20.W1.22 - VLT
p
is a registered Danfoss trademark
2
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