Warnings - Danfoss VLT 5000 Series Operating Instructions Manual

Warnings

The display flashes between normal state and warning.
A warning comes up on the first and second line of
the display. See examples below. If parameter 027
is set to line 3/4, the warning will be shown in these
lines if the display is in read-out state 1-3.
NO MOTOR
WARN. 3
WARNING 1
Under 10 Volts (10 VOLT LOW):
The 10 Volts voltage from terminal 50 on the
control card is below 10 Volts.
Remove some of the load from terminal 50, as the 10
Volts supply is overloaded. Max. 17 mA/min. 590
WARNING/ALARM 2
Live zero fault (LIVE ZERO ERROR):
The current signal on terminal 60 is less than 50% of the
value set in parameter 315 Terminal 60,min. scaling.
WARNING/ALARM 3
No motor (NO MOTOR):
The motor check function (see parameter 122)
indicates that no motor has been connected to
the output of the frequency converter.
WARNING/ALARM 4
Phase fault (MAINS PHASE LOSS):
A phase is missing on the supply side or the
mains voltage imbalance is too high.
This message can also appear if there is a fault in
the input rectifier on the frequency converter.
Check the supply voltage and supply currents
to the frequency converter.
WARNING 5
Voltage warning high
(DC LINK VOLTAGE HIGH):
The intermediate circuit voltage (DC) is higher than
the overvoltage limit of the control system. The
frequency converter is still active.
MG.51.A9.02 - VLT is a registered Danfoss trademark
Alarm messages
The alarm comes up in the 2. and 3. line of
the display, see example below:
SETUP
1
WARNING 6
Voltage warning low (DC LINK VOLTAGE LOW):
The intermediate circuit voltage (DC) is below the
undervoltage limit of the control system. The
.
frequency converter is still active.
WARNING/ALARM 7
Overvoltage (DC LINK OVERVOLT):
If the intermediate circuit voltage (DC) exceeds
the inverter overvoltage limit (see table), the
frequency converter will trip after the time set
in parameter 410 has passed.
Furthermore, the voltage will be stated in the display.
The fault can be eliminated by connecting a brake
resistor (if the frequency converter has an integral brake
chopper, EB or SB) or by extending the time chosen in
parameter 410. In addition, Brake function/overvoltage
control can be activated in parameter 400.
Alarm/warn-
ing limits:
VLT 5000
Series
Undervolt-
age
Voltage
warning low
Voltage
warning
high (w/o
brake -
w/brake)
Overvoltage
The voltages stated are the intermediate circuit
voltage of the frequency converter with a tolerance
®
VLT 5000 Series
TRIP (RESET)
ALARM:12
SETUP
1
TORQUE LIMIT
3 x 200 3 x 380 - 3 x 525 -
- 240 V 500 V 600 V
[VDC] [VDC] [VDC]
211 402 557
222 423 585
1)
384/405 801/840 943/965
425 855 975
3 X 525 -
690 v
[VDC]
553
585
1084/1109
1130
169