Danfoss VLT FC 100 Series Programming Manual page 71

®
VLT HVAC Drive Programming Guide
[84] SL Digital Output E
[85] SL Digital Output F
[160] No alarm
[161] Running reverse
[165] Local reference active
[166] Remote reference ac-
tive
[167] Start command active
[168] Drive in hand mode
[169] Drive in auto mode
[180] Clock Fault
[181] Preventive
nance
[190] No-Flow
[191] Dry Pump
[192] End of Curve
[193] Sleep Mode
[194] Broken Belt
[195] Bypass Valve Control
[196] Fire Mode
[197] Fire Mode was act.
[198] Drive Bypass
SL Control Action
See par. 13-52
high is executed. The input will go low whenever the Smart Logic Action [36]
SL Control Action
See par. 13-52
high is executed. The input will go low whenever the Smart Logic Action [37]
The output is high when no alarm is present.
The output is high when the frequency converter is running counter clockwise (the logical product of the status
bits 'running' AND 'reverse').
The output is high when par. 3-13
hand auto at the same time as the LCP is in Hand on mode.
The output is high when par. 3-13
[Auto on] mode.
The output is high when there is an active Start command (i.e. via digital input bus connection or [Hand on] or
[Auto on], and no Stop or Start command is active.
The output is high when the frequency converter is in Hand on mode (as indicated by the LED light above [Hand
on].
The output is high when the frequency converter is in Hand on mode (as indicated by the LED light above [Auto
on].
The clock function has been reset to default (2000-01-01) because of a power failure.
Mainte- 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.
A No-Flow situation or Minimum Speed situation has been detected if enabled in
No-Flow Detection
22-21 and/or
A Dry Pump condition has been detected. This function must be enabled in par. 22-26, Dry Pump Function.
A pump running with max. speed for a period of time without reaching the set pressure has been detected. To
enable this function please see
The frequency converter/system has turned into sleep mode. See
A Broken Belt condition has been detected. This function must be enabled in par. 22-60, Broken Belt Detection.
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
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
control principle:
The frequency converter is operating in Fire Mode. See 24-0*
The frequency converter has been operating in Fire Mode, but is now back in normal operation.
To be used as signal for activating an external electromechanical bypass switching the motor direct on line. See
Drive Bypass
24-1* .
MG.11.C5.02 - VLT ® is a registered Danfoss trademark
. The input will go high whenever the Smart Logic Action [42]
. The input will go high whenever the Smart Logic Action [43]
Reference Site = [2] Local or when par. 3-13
Reference Site = Remote [1] or Linked to hand/auto
, par. 22-22.
par. 22-50 End of Curve Function
.
Sleep mode
Motor speed low limit
, par. 1-71 can be used in order to delay the motor start. The Bypass valve
Fire Mode
3. Parameter Description
Set dig. out. E
Set dig. out. E low is executed.
Set dig. out. F
Set dig. out. F low is executed.
Reference Site = [0] Linked to
[0] while the LCP is in
Minimum Speed Detection
. par.
, par. 22-4*.
, par. 4 -11) . After the limit has
.
3
71