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VLT
®
6000 HVAC
150
MG.60.B1.02 - VLT is a registered Danfoss trade mark
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List of warnings and alarms
The table gives the different warnings and alarms and
indicates whether the fault locks the VLT frequency
converter. After Trip locked, the mains supply must be
cut and the fault must be corrected. Reconnect the
mains supply and reset the VLT frequency converter
before being ready. A Trip can be reset manually in
three ways
1) Via the control key [RESET]
2) Via a digital input
3) Via serial communication
In addition, an automatic reset may be selected in
parameter 400
Reset function.
Wherever a cross 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. This is possible, e.g. in parameter 117
Motor
thermal protection
. After a trip, the motor will be
coasting and on the VLT frequency converter alarm
and warning will flash. If the fault is removed, only the
alarm will flash. After a reset, the VLT frequency
converter will be ready to start operation again.
No.
Description
Warning
Alarm
Trip locked
Help
1
10 Volts low (10 VOLT LOW)
X
Page 151
2
Live zero fault (LIVE ZERO ERROR)
X
X
Page 151
4
Mains phase fault (MAINS PHASE LOSS)
X
X
X
Page 151
5
Voltage warning high (DC LINK VOLTAGE HIGH)
X
Page 151
6
Voltage warning low (DC LINK VOLTAGE LOW)
X
Page 151
7
Overvoltage (DC LINK OVERVOLT)
X
X
Page 151
8
Undervoltage (DC LINK UNDERVOLT)
X
X
Page 152
9
Inverter overloaded (INVERTER TIME)
X
X
Page 152
10
Motor overloaded (MOTOR TIME)
X
X
Page 152
11
Motor thermistor (MOTOR THERMISTOR)
X
X
Page 152
12
Current limit (CURRENT LIMIT)
X
X
Page 152
13
Overcurrent (OVERCURRENT)
X
X
Page 152
14
Earth fault (EARTH FAULT)
X
X
Page 152
15
Switch mode fault (SWITCH MODE FAULT)
X
X
Page 152
16
Short-circuit (CURR.SHORT CIRCUIT)
X
X
Page 152
17
Serial communication timeout (STD BUSTIMEOUT)
X
X
Page 152
18
HPFB bus timeout (HPFB TIMEOUT)
X
X
Page 152
19
Fault in EEprom on power card (EE ERROR POWER)
X
Page 153
20
Fault in EEprom on control card (EE ERROR CONTROL)
X
Page 153
22
Auto-optimisation not OK (AMA FAULT)
X
Page 153
29
Heat-sink temperature too high (HEAT SINK OVERTEMP.)
X
X
Page 154
30
Motor phase U missing (MISSING MOT.PHASE U)
X
Page 154
31
Motor phase V missing (MISSING MOT.PHASE V)
X
Page 154
32
Motor phase W missing (MISSING MOT.PHASE W)
X
Page 154
34
HBFB communication fault (HBFB COMM. FAULT)
X
X
Page 154
35
Out of frequency range (OUT FREQ RNG/ROT LIM)
X
Page 154
37
Inverter fault (GATE DRIVE FAULT)
X
X
Page 154
39
Check parameters 104 and 106 (CHECK P.104 & P.106)
X
Page 154
40
Check parameters 103 and 105 (CHECK P.103 & P.105)
X
Page 154
41
Motor too big (MOTOR TOO BIG)
X
Page 155
42
Motor too small (MOTOR TOO SMALL)
X
Page 155
60
Safety stop (EXTERNAL FAULT)
X
Page 155
61
Output frequency low (FOUT < FLOW)
X
Page 155
62
Output frequency high (FOUT > FHIGH)
X
Page 155
63
Output current low (I MOTOR < I LOW)
X
X
Page 155
64
Output current high (I MOTOR > I HIGH)
X
Page 155
65
Feedback low (FEEDBACK < FDB LOW)
X
Page 155
66
Feedback high (FEEDBACK > FDB HIGH)
X
Page 155
67
Reference low (REF. < REF. LOW)
X
Page 155
68
Reference high (REF. > REF. HIGH)
X
Page 155
99
Unknown fault (UNKNOWN ALARM)
X
X
Page 155