Danfoss VLT AutomationDrive FC 301 Programming Manual page 700

VLT AutomationDrive FC 301/302
Programming Guide
Bit Hex Dec
29 20000000 536870912
30 40000000 1073741824
31 80000000 2147483648
The alarm words, warning words and extended status words can be read out via a serial bus or optional fieldbus for diagnostics. See
also parameter 16-94 Ext. Status Word.
7.2 Descriptions of Warnings and Alarms
Depending on settings, FC 301/302 is able to give warnings or trigger alarms. Below, an extract of most common alarms and warn-
ings can be found.
The following warning and alarm information defines each warning or alarm condition, provides the probable cause for the condi-
tion, and entails a remedy or troubleshooting procedure.
7.2.1 WARNING 1, 10 Volts Low
Cause
The control card voltage is less than 10 V from terminal 50. Remove some of the load from terminal 50, as the 10 V supply is overloa-
ded. Maximum 15 mA or minimum 590 Ω.
A short circuit in a connected potentiometer or incorrect wiring of the potentiometer can cause this condition.
Troubleshooting
Remove the wiring from terminal 50.
• If the warning clears, the problem is with the wiring.
• If the warning does not clear, replace the control card.
7.2.2 WARNING/ALARM 2, Live Zero Error
Cause
This warning or alarm only appears if programmed in parameter 6-01 Live Zero Timeout Function. The signal on 1 of the analog inputs
is less than 50% of the minimum value programmed for that input. Broken wiring or a faulty device sending the signal can cause
this condition.
Troubleshooting
• Check connections on all analog mains terminals.
- Control card terminals 53 and 54 for signals, terminal 55 common.
- VLT® General Purpose I/O MCB 101 terminals 11 and 12 for signals, terminal 10 common.
- VLT® Analog I/O Option MCB 109 terminals 1, 3, and 5 for signals, terminals 2, 4, and 6 common.
• Check that the drive programming and switch settings match the analog signal type.
• Perform an input terminal signal test.
7.2.3 WARNING/ALARM 3, No Motor
Cause
No motor is connected to the output of the drive.
7.2.4 WARNING/ALARM 4, Mains Phase Loss
Cause
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. Options are programmed in parameter 14-12 Function at Mains Imbalance.
Troubleshooting
• Check the supply voltage and supply currents to the drive.
700 | Danfoss A/S © 2022.12
Ext. status word
Parameter 16-94 Ext. Status Word
Unused
Unused
Protection mode
Troubleshooting
Ext. status word 2 Ext. status
word 3
Parameter 16-95 Ext. Parameter
Status Word 2 16-99 Ext.
Status Word 3
– –
– –
No function –
AU275636650261en-000101 / 130R0334