Service manual

No. Description Warning Alarm Trip Lock Parameter Reference
24 Fan Fault (Only on 400 V
30-90 kW)
(X) 14–53
30 Motor phase U missing (X) (X) 4–58
31 Motor phase V missing (X) (X) 4–58
32 Motor phase W missing (X) (X) 4–58
38 Internal fault (X) (X)
44 Earth fault 2 (X) (X)
47 Control Voltage Fault (X) (X)
48 VDD1 Supply Low (X) (X)
50 AMA Calibration Failed (X)
51 AMA check U
nom
and I
nom
(X)
52 AMA low I
nom
(X)
53 AMA motor too big (X)
54 AMA motor too small (X)
55 AMA Parameter out of
range
(X)
56 AMA interrupted by user (X)
57 AMA timeout (X)
58 AMA internal fault (X) (X)
59 Current limit (X)
60 External Interlock (X)
66 Heat sink Temperature Low (X)
69 Pwr Card Temperature (X) (X) (X)
79 Illegal PS config (X) (X)
80 Drive Initialized to Default
Value
(X)
87 Auto DC Braking (X)
95 Broken Belt (X) (X)
22–6
*
201 Fire Mode (X)
202 Fire M Limits Exceeded (X)
250 New spare parts (X) (X)
251 New Type Code (X) (X)
Table 4.2 Alarm/Warning Code List
(X) Dependent on parameter. A trip is the action when an
alarm has appeared. The trip coasts the motor and can be
reset by pressing [Reset] or make a reset by a digital input
(parameter group 5-1
*
Digital Inputs [1]). The original event
that caused an alarm cannot damage the frequency
converter or cause dangerous conditions. A trip lock is an
action when an alarm occurs, which can damage the
frequency converter or connected parts. A trip lock
situation can only be reset by a power cycling.
Warning Yellow
Alarm Flashing red
Table 4.3 LED Indication
The alarm words, warning words and extended status
words can be read out via serial bus or optional fieldbus
for diagnosis.
WARNING/ALARM 2, Live zero error
This warning or alarm only appears if programmed by the
user in 6-01 Live Zero Timeout Function. The signal on one
of the analog inputs is less than 50% of the minimum
value programmed for that input. Broken wiring or faulty
device sending the signal can cause this condition.
Troubleshooting
Check connections on all the analog input
terminals. Control card terminals 53 and 54 for
signals, terminal 55 common. MCB 101 terminals
11 and 12 for signals, terminal 10 common. MCB
109 terminals 1, 3, 5 for signals, terminals 2, 4, 6
common).
Check that the frequency converter programming
and switch settings match the analog signal type.
Perform Input Terminal Signal Test.
Troubleshooting
VLT
®
HVAC Basic Drive Service Manual
36 MG90X202 - VLT
®
is a registered Danfoss trademark
44