124 MG.30.A7.02 - VLT
®
is a registered Danfoss trademark
Warnings appear in the third line of the
display, see the example below:
Voltage low (VOLTAGE LOW)
The intermediate circuit voltage (d.c.) is
below the control card’s warning limit, see
table p. 125. The inverter is still active.
Voltage high (VOLTAGE HIGH):
The intermediate circuit voltage (d.c.) is
above the control card’s warning limit, see
table p. 125. The inverter is still active.
Undervoltage (UNDERVOLTAGE):
The intermediate circuit voltage is below
the inverter’s undervoltage limit, see table
p. 125. The inverter has stopped, and after
the time in parameter 311 there will be a
trip.
Overvoltage (OVERVOLTAGE):
The intermediate circuit voltage is above
the inverter’s overvoltage limit, see table
p. 124. The inverter has stopped, and after
the time in parameter 311 there will be a
trip.
Current limit (CURRENT LIMIT):
The motor current is higher than the value
in parameter 209.
Overcurrent (OVER CURRENT):
The inverter’s peak current limit (approx.
250% of rated current) has been exceed-
ed, and after 7-11 sec. there will be a trip.
Reference faults (REF. FAULT):
A fault to the analogue input signal (ter-
minal 53 or 60) when a signal type with
“live” zero” has been selected (4-20 mA,
1-5 V or 2-10 V). The warning is activated
when the signal level is below half of the
zero level (4 mA, 1 V or 2 V).
No motor (NO MOTOR):
The motor check function (para. 313)
Warnings
Display massages
Voltage low
(VOLTAGE LOW)
detects that no motor is connected to the
VLT
®
frequency converter’s output.
Frequency warning low
(LO FREQ WARN):
The output frequency is lower than the
value in parameter 210.
Frequency warning high
(HI FREQ WARN):
The output frequency is higher than the
value in parameter 211.
Current warning low
(LO CURR WARN):
The output current is lower than the value
in parameter 212.
Current warning high
(HI CURR WARN):
The output current is higher than the value
in parameter 213.
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