Danfoss VLT HVAC, Руководство по программированию

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4.1.3 Extended Status Words
Bit Hex Dec
16-94 Ext.
Status Word
16-95 Ext. Status
Word 2
0 1 1 Ramping Off
1 2 2 AMA running Hand/Auto
2 4 4 Start CW/CCW 0
3 8 8 0 0
4 10 16 0 0
5 20 32 0 Relay 12 active
6 40 64 0 0
7 80 128
Output
current high Control Ready
8 100 256
Output
current low Drive Ready
9 200 512 0 Quick Stop
10 400 1024 0 DC Brake
11 800 2048 0 Stop
12 1000 4096 0 0
13 2000 8192 Braking
Freeze Output
Request
14 4000 16384 0 Freeze Output
15 8000 32768 OVC active Jog Request
16 10000 65536 AC brake Jog
17 20000 131072 0 Start request
18 40000 262144 0 Start
19 80000 524288 0 0
20 100000 1048576 0 Start Delay
21 200000 2097152
Local Ref./
Remote Ref. Sleep
22 400000 4194304 0 Sleep boost
23 800000 8388608 0 Running
24 1000000 16777216 0 Bypass
25 2000000 33554432 0 Fire Mode
26 4000000 67108864 0 External Interlock
27 8000000 134217728 0
Firemodelimi-
texceed
28 10000000 268435456 0 FlyStart Active
29 20000000 536870912 0 0
30 40000000 1073741824 0 0
31 80000000 2147483648 Database busy 0
4.1.4 Fault Messages
WARNING/ALARM 2, Live zero error
This warning or alarm will only appear 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. This condition can be caused by
broken wiring or faulty device sending the signal.
Troubleshooting:
Check connections on all the analog input
terminals. Control card terminals 53 and 54 for
signals, terminal 55 common.
Check that the drive programming match the
analog signal type.
WARNING/ALARM 4, Mains phase loss A phase is missing on
the supply side, or the mains voltage imbalance is too high.
This message also appears for a fault in the input rectifier on
the frequency converter. Options are programmed at
14-12 Function at Mains Imbalance .
Troubleshooting: Check the supply voltage and supply
currents to the frequency converter.
WARNING/ALARM 7, DC overvoltage
If the intermediate circuit voltage exceeds the limit, the
frequency converter trips after a time.
Troubleshooting:
Extend the ramp time
Activate functions in 2-10 Brake Function
WARNING/ALARM 8, DC under voltage
If the intermediate circuit voltage (DC) drops below the
under voltage limit, the frequency converter trips after a
fixed time delay. The time delay varies with unit size.
Troubleshooting:
Check that the supply voltage matches the
frequency converter voltage.
Perform Input voltage test
WARNING/ALARM 9, Inverter overloaded
The frequency converter is about to cut out because of an
overload (too high current for too long). The counter for
electronic, thermal inverter protection gives a warning at
90% and trips at 100%, while giving an alarm. The frequency
converter
cannot be reset until the counter is below 90%.
The fault is that the frequency converter is overloaded by
more than 100% for too long.
Troubleshooting:
Compare the output current shown on the LCP
with the drive rated current.
Compare the output current shown on the LCP
with measured motor current.
Troubleshooting VLT HVAC Basic Drive Programming Guide
MG.18.B1.02 - VLT
®
is a registered Danfoss trademark 77
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