Warnings/Alarm Messages - Danfoss VLT FCD 303 Operating Instructions Manual

Warnings/alarm messages

A warning or an alarm will appear in the LEDs on
the LCP2. A warning will be shown until the fault
has been corrected, while an alarm will continue
to flash until the [STOP/RESET] key is acti v ated.
The table shows the various warnings and alarms
shown in the LCP2, and whether the fault locks the
frequency converter. After a Trip locked (alarm and
warning LEDs flash at the same time), the mains
supply is cut off and the fault is corrected. The mains
supply is reconnected and the frequency converter
is reset. The frequency converter is now ready. A
Trip can be reset manually in three ways:
1. Via the operating key [STOP/RESET].
No. Description
2 Li v e zero error (LIVE ZERO ERROR)
4 Mains phase loss (MAINS PHASE LOSS)
5 Voltage warning high (DC LINK VOLTAGE HIGH)
6 Voltage warning low (DC LINK VOLTAGE LOW)
7 Overvoltage (DC LINK OVERVOLT)
8 Undervoltage (DC LINK UNDERVOLT)
9 Inverter overload (INVERTER TIME)
10 Motor overloaded ( MOTOR, TIME)
11 Motor thermistor (MOTOR THERMISTOR)
12 Current limit (CURRENT LIMIT)
13 Overcurrent (OVERCURRENT)
14 Earth fault (EARTH FAULT)
15 Switch mode fault (SWITCH MODE FAULT)
16 Short-circuit (CURR. SHORT CIRCUIT)
17 Serial communication timeout (STD BUS TIMEOUT)
18 HPFB bus timeout (HPFB TIMEOUT)
33 Out of frequency range (OUT FREQ RNG/ROT LIM)
34 HPFB communication fault (PROFIBUS OPT. FAULT)
35 Inrush fault (INRUSH FAULT)
36 Overtemperature (OVERTEMPERATURE)
37-45 Internal fault (INTERNAL FAULT)
50 AMT not possible
51 AMT fault re. nameplate data (AMT TYPE.DATA FAULT)
54 AMT wrong motor (AMT WRONG MOTOR)
55 AMT timeout (AMT TIMEOUT)
56 AMT warning during AMT (AMT WARN. DURING AMT)
99 Locked (LOCKED)
LED indication
Warning
Alarm
Trip locked
WARNING/ALARM 2: Live zero fault
The voltage or current signal on terminal 53 or
60 is below 50% of the preset value in parameter
309 or 315 Terminal, min. scaling.
102
2. Via a digital input.
3. Via serial communication.
It is also possible to choose an automatic reset in
parameter 405 Reset function. When a cross appears
in both warning and alarm, this can mean that a
warning comes before an alarm. It can also mean
that it is possible for the user to programme whether
a warning or an alarm will appear for a gi v en fault.
For example, this is possible in parameter 128 Motor
thermal protection. After a trip the motor will coast,
and alarm and warning will blink on the frequency
converter, but if the fault disappears only the alarm
will blink. After a reset the frequency converter
will be ready to start operation again.
yellow
WARNING/ALARM 4: Mains phase fault
red
No phase on mains supply side. Check the supply
yellow and red
voltage to the frequency converter. This fault is only
acti v e in 3-phase mains supply. The alarm can only
occur when the load is pulsing. In this instance the
pulses must be dampened, e.g. using an inertia disc.
®
VLT FCD Series
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MG.04.B7.02 - VLT is a registered Danfoss trademark
Alarm Trip
locked
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