IOM SYSCREW AIR EVO HSE

80
10 - Troubleshooting (continued)
S.NO.
WARNING /
ALARM NO.
DESCRIPTION TROUBLESHOOTING
11 A14 Ground fault
Remove power to the frequency converter and repair the ground fault.
→ Check for ground faults in the motor by measuring the resistance to ground of the motor
cables and the motor with a megohmmeter.
→ Reset any potential individual offset in the 3 current transducers in . Perform the manual
initialisation or perform a complete AMA. This
method is most relevant after changing the power card.
12 A29 Drive over temperature
Check for the following conditions.
→ The ambient temperature is too high.
→ The motor cables are too long.
→ Incorrect airflow clearance above and below the frequency converter.
→ Blocked airflow around the frequency converter.
→ Damaged heat sink fan.
→ Dirty heat sink.
13 A30 Motor phase U missing
→ Remove the power from the frequency converter and check motor phase U.
14 A31 Motor phase V missing → Remove the power from the frequency converter and check motor phase V.
15 A32 Motor phase W missing → Remove the power from the frequency converter and check motor phase W.
16 A47 24 V supply low → Check for a defective power card.
17 A65
Control Board Over-
temperature
→ Check that the ambient operating temperature is within the limits.
→ Check for clogged filters.
→ Check the fan operation.
→ Check the control card.
18 A244 Heatsink temp
19 A16 Short Circuit Remove the power to the frequency converter and repair the short circuit.
20 A33 Inrush fault → Let the unit cool to operating temperature
21 A38 Internal fault
→ Cycle power.
→ Check that the option is properly installed
→ Check for loose or missing wiring
22 A45 Earth fault 2
→ Check for proper grounding and loose connections.
→ Check for proper wire size.
→ Check the motor cables for short circuits or leakage currents.
23 A46 Pwr. card supply
→ Check for a defective power card.
→ Check for a defective control card.
→ Check for a defective option card.
→ If a 24 V DC supply is used, verify proper supply power."
24 A48 1.8 V supply low
→ Check for a defective control card.
→ If an option card is present, check for overvoltage.
25 A69 Pwr. Card Temp
→ Check that the ambient operating temperature is within limits.
→ Check for clogged filters.
→ Check fan operation.
→ Check the power card.