FCM 300 Series
MG.03.B6.2G - VLT is a registered Danfoss trademark
List of Warnings and Alarms
The table gives the different warnings and alarms
and indicates whether the fault locks the FCM 300.
After Trip locked, the mains supply must be cut and
the fault must be corrected. Reconnect the mains
supply and reset the FCM 300 before being ready.
No. Description Warning Trip Alarm Trip locked
2 Live zero fault (LIVE ZERO ERROR) X X
4 Phase loss (MAINS PHASE LOSS) X X X
5 Voltage warning high (DC LINK VOLTAGE HIGH) X
6 Voltage warning low (DC LINK VOLTAGE LOW) X
7 Overvoltage (DC LINK OVERVOLT) X X
8 Undervoltage (DC LINK UNDERVOLT) X
9 Inverter overload (INVERTER TIME) X X
11 Motor thermistor (MOTOR THERMISTOR) X
12 Current limit (CURRENT LIMIT) X
13 Overcurrent (OVERCURRENT) X X
14 Earth fault (EARTH FAULT) X X
15 Supply fault (SWITCH MODE FAULT) X X
16 Short-circuit (CURR.SHORT CIRCUIT) X X
17 Standard bus timeout (STD BUS TIMEOUT) X X
18 HPFB bus timeout (HPFB TIMEOUT) X X
33 Out of frequency range (OUT FREQ RNG/ROT LIM) X
34 HPFB error (HPFB ALARM) X X
35 Inrush fault (INRUSH FAULT) X X
36 Overtemperature (OVERTEMPERATURE) X X
37 Internal error (INTERNAL ERROR) X X
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Wherever a X is placed under both Warning and
Alarm, this can mean that a warning precedes the
alarm. It can also mean that it is possible to
program whether a given fault is to result in a
warning or an alarm. After a trip, alarm and warning
will flash, but if the fault is removed, only alarm will
flash. After a reset, the FCM 300 will be ready to
start operation again.
Messages
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Warning:
Extreme care must be taken when
operating the unit with open lid.
GreenGreen
GreenGreen
Green
YY
YY
Y
ellowellow
ellowellow
ellow
RedRed
RedRed
Red
ActionAction
ActionAction
Action
LED 302LED 302
LED 302LED 302
LED 302
LED 301LED 301
LED 301LED 301
LED 301
LED 300LED 300
LED 300LED 300
LED 300
OFF OFF OFF Apply power
ON OFF OFF Apply
start and referencestart and reference
start and referencestart and reference
start and reference signals , (see drawing on page 6-6)
ON OFF ON Apply and remove
reset reset
reset reset
reset signal according to the drawing on page 6-6.
ON ON ON Switch off power until all LED's have turned off
ON Flashing OFF Local stop or Local mode selected. Push Local start and select
slowly remote
What if the Motor Does Not Start?
••
••
• Make sure no parameters have been changed
from factory settings. Use the Local Control
Panel (LCP) or serial port to reset to factory
settings.
••
••
• Check the LCP or Local Operation Pad (LOP) to
make sure the (STOP) command has not been
pushed. If this is the case, the 4
th
line of the LCP
flashes. Push the (START) button on the LCP or
LOP to restart the unit.
••
••
• Check the Light Emitting Diodes (LEDs) visible
through a hole in the inside isolation cover (see
drawing page 6-6), follow the table below.
16-2
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