75
VLT
®
3500 HVAC
MG.35.B1.02 – VLT is a registered Danfoss trademark
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Section 4Section 4Section 4Section 4Section 4
VLT ready (UNIT READY.):
Remote Control Mode ("Remote/Auto") is active and
"Coasting stop" has been selected in parameter 404;
there is 0 V on terminal 27.
Operation OK (RUN OK.):
Remote Control Mode ("Remote/Auto") is active and
the frequency converter is running at the speed refe-
rence.
Jogging (JOGGING.):
Remote Control Mode ("Remote/Auto") is active and
"Jogging" has been selected in parameter 405; at the
same time there is 24 V on terminal 29.
Ramping (RAMPING):
Remote Control Mode ("Remote/Auto") is active and
the output frequency is varying with the set ramping
times.
Freeze reference (FREEEZE.):
Remote Control Mode ("Remote/Auto") is active and
freeze reference has been selected in parameter 400,
401 or 405; at the same time, the respective input
(16, 17 or 29) is active.
Off 2 (OFF 2):
Bit 01 of the control word is "0".
Off 3 (OFF 3):
Bit 02 of the control word is "0".
Start disabled (START INHIB.):
Bit 06 of the status word is "1".
Reference locked (HOLD.):
Bit 05 of the control word is "0".
Status messages
Status messages appear in the 3rd line of the display
- see example below:
Local stop (ENAB STP LOC.):
"Local" or "Local with external stop" has been
selected in parameter 003. The "Local/Hand" key on
the frequency converter operating panel is activated
and "Stop" on the keyboard is activated, too.
VLT ready, local (UNIT RDY LOC.):
"Local" or "Local with external stop" has been
selected in parameter 003. The "Local/Hand" key on
the frequency converter operating panel is activated
and "Coasting stop" in parameter 404; there is 0 V on
terminal 27.
Local operation OK
Local operation OK
Local operation OK
Local operation OK
Local operation OK (RUN OK LOCAL):
"Local" or "Local with external stop" has been
selected in parameter 003. The "Local/Hand" key on
the frequency converter operating panel is activated
and the frequency converter is running at the set
speed reference (parameter 004).
Local ramp operation (RAMP LOCAL):
"Local" or "Local with external stop" has been
selected in parameter 003. The "Local/Hand" key on
the frequency converter operating panel is activated
and the output frequency is varying in accordance
with the set ramping times.
Stop (ENAB STOP.):
Remote Control Mode ("Remote/Auto") is active and
the frequency converter has been stopped via the
keyboard or the control terminals.
FREQUENCY
RUN OK LOKAL
50.0Hz
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4.1 Status messages
Diagnosis and service
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