Danfoss VLT FCM Series User Manual

VLT
®
FCM Series
All about FCM
300
■ 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:
175NA117.10
SETUP
1
WARN. 6
DC LINK VOLTAGE LOW
Alarm messages
The alarm comes up in the 2. and 3. line of
the display, see example below:
175NA118.10
SETUP
1
ALARM:12
TRIP (RESET)
TORQUE LIMIT
SETUP
1
WARNING/ALARM 2
Live zero fault (LIVE ZERO ERROR):
The current signal on terminal 1 is less than 50% of the
value set in parameter 336 Terminal 1, min. scaling.
WARNING/ALARM 4
Phase loss (MAINS PHASE LOSS):
Phase missing on the supply side. Check the
supply voltage to the FC motor.
WARNING 5
Voltage warning high (DC LINK VOLTAGE HIGH):
The intermediate circuit voltage (DC) is higher than
the overvoltage limit of the control system, see table
on this page. The FC motor is still active.
WARNING 6
Voltage warning low (DC LINK VOLTAGE LOW):
The intermediate circuit voltage (DC) is below the
undervoltage limit of the control system, see table
below. The FC motor is still active.
ALARM 7
Overvoltage (DC LINK OVERVOLT):
If the intermediate circuit voltage (DC) exceeds
the inverter overvoltage limit (see table), the
FC motor will trip. Furthermore, the voltage
will be stated in the display.
ALARM 8
Undervoltage (DC LINK UNDERVOLT):
If the intermediate circuit voltage (DC) drops below the
inverter lower voltage limit (see table on this page),
the FC motor will trip after 3 - 28 sec., depending
on unit. Furthermore, the voltage will be stated
in the display. Check whether the supply voltage
matches the FC motor, see technical data.
WARNING/ALARM 9
Inverter overload (INVERTER TIME):
The electronic, thermal inverter protection reports
that the FC motor is about to cut out because o
fan
overload (too high current for too long). The counter for
electronic, thermal inverter protection gives a warning at
95% and trips at 100%, while giving an
alarm. The FC
motor c
annot be reset until the counter is below 90%.
Trip/Alarm/warning limits:
FC motor Series 3 x 380 -
480 V
[VDC]
Undervoltage 410
Voltage warning low 440
Voltage warning high 760
Overvoltage 760*
* 760V in 5 sec. or 800V im
mediately.
The voltages stated are t
he
intermediate circuit voltage of the
FC motor.
ALARM 11
Motor thermistor (MOTOR THERMISTOR):
If a thermistor is mounted and parameter 128 is set to
Enable[1], the F
C motor will trip if the motor gets too hot.
WARNING 12
Current limit (CURRENT LIMIT):
The current is higher than the value in parameter
221 (in motor ope
ration).
ALARM 13
Overcurrent (OVERCURRENT):
The inverter peak current limit (approx. 230% of
the rated curre
nt) has been exceeded. The FC
motor will trip, while giving an alarm.
MG.03.H3.02 - VLT is a registered Danfoss trademark
95

Danfoss VLT FCM Series Specifications

General

Brand	Danfoss
Model	VLT FCM Series
Category	DC Drives
Language	English