8’–24’ POWERFOIL
®
X2.0
WWW.BIGASSFANS.COM ©2012 DELTA T CORP. DBA BIG ASS FAN CO. ALL RIGHTS RESERVED
50
Error code
Description and corrective action
Over Current
Abnormal condition exists on the motor side of the fan system.
Check motor OL point parameters. Check the motor wiring for shorts. If the condition persists with the disconnected
motor, contact Customer Service at 1-877-BIG-FANS.
Low AC Input Voltage
Incoming AC line voltage has exceeded acceptable limits or the motor is trying to stop too quickly.
Check the DC buss voltage at drive idle versus drive running. Monitor DV buss voltage as the motor is stopping.
Verify that incoming AC supply is acceptable configuration (center ground Wye Delta with Wild on B phase).
Drive Overtemp
Verify the fan is installed in an acceptable environment (122°F [50°C] maximum).
Check the drive for excessive dirt buildup on the heat sink fins. Check the drive cooling fan function.
Under Voltage
Incoming AC line voltage has fallen below acceptable limits.
Check the DC buss voltage at drive idle versus drive running. Monitor DV buss voltage as the motor is stopping.
Verify that incoming AC supply is acceptable configuration (center ground Wye Delta with Wild on B phase).
Excessive Drive Output Current
An abnormal condition exists on the motor side of the fan system.
Check the motor OL point parameters. Reduce torque comp (Pr.54).
Over Current During Acceleration
Motor circuit insulation failure or over boosting.
Check the torque boost. If the condition persists with a disconnected motor, contact Customer Service at
1-877-BIG-FANS.
Over Current During Acceleration
Motor circuit insulation failure or over boosting.
Check the torque boost. If the deceleration time is too short, check parameters.
Over Current During Steady Operation
Motor circuit insulation failure or over boosting.
Check the motor wiring. This fault could indicate a mechanical failure.
External Fault
ESFR input has been triggered (MI3).
If the system’s building is not on fire, check the relay wiring and the alarm system status. If the building is on fire,
vacate the premises immediately! If the SmartSense365™ is in use, 4-20mA loop has been compromised. Check the
SmartSense365
™
power supply and loop wiring. The drive
will not
auto recover from EF.
Ground Fault
Drive output terminal shorted to ground.
Depending on the severity of short, the output module can be damaged (if SCC ≥ 50% of drive rating).
Feedback Signal Error
Check the AVI/ACI wiring.
Incoming Phase Loss
Possible loose connections or blown over current devices.
Check the incoming AC line for loose connections or blow over current devices.
Base Block
Base Block input (M4) has been triggered.
Check the accessory wiring and accessory configuration. The drive will auto-recover to the previous operating state.
M Series fan error codes
Review the below error codes and corrective actions for your fan controller before contacting Customer Service for support.
User Servicing (cont.) (cont.)
