8’ - 24’ POWERFOILPLUS™, POWERFOIL™, & WICKERBILL FANS
WWW.BIGASSFANS.COM ©2010 DELTA T CORP. DBA BIG ASS FAN ALL RIGHTS RESERVED
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WWW.BIGASSFANS.COM ©2010 DELTA T CORP. DBA BIG ASS FAN ALL RIGHTS RESERVED
8’ - 24’ POWERFOILPLUS™, POWERFOIL™, & WICKERBILL FANS
Troubleshooting Allen-Bradley Controllers
CAUTION: The following procedures require the fan controller to be under power. Precautions must be taken to ensure
personal safety. Eye protection, insulated adjustment tools, and arc flash protection are recommended. Local and/or national
regulations regarding entry into powered industrial control panels should be followed.
ATTENTION: If faults cannot be cleared, contact Big Ass Fans Customer Service.
Refer to Allen-Bradley “Quick Start Guide” (publication 22A-QS001C-MU-P-May 2003) or go to www.rockwellautomation.com for
information regarding fault code retrieval.
The condition of the fan controller is constantly monitored. Any changes in the condition of the system will be indicated through the LED
display on the front of the VFD. Any condition that results in the fan operating outside of pre-established limitations will result in a fault.
There are two types of faults, both of which will stop the fan:
•
Type 1 - Auto reset/run. When this type of fault occurs, the controller will automatically reset the fault condition, and attempt to
restart after a period of 5 seconds. If the controller has made 3 restart attempts and the fault persists, the controller will trip on
“F033”, indicating that the controller has reached its restart attempt limit.
•
Type 2 - Non-Resetable. This type of fault occurs due to improper wiring and/or motor failure. The cause of the fault must be
corrected before the controller will run again.
Fault Indicators
When a fault has occurred, the LED display will flash the most recent fault that has occurred, and also flash the fault indicator
LED.
Every time that the controller is powered down, the controller will
record a “F004” under voltage fault in the fault buffer. If the fault is a re-
occurring event or a type 2 fault, it will be possible to troubleshoot the
system again when the controller is powered back up.
Automatically/Manually Clearing Faults
Automatically
As previously mentioned, Type 1 faults will clear themselves automatically; however, the most recent 3 will be stored in the VFD’s fault
buffer. Refer to Powerflex “Quick Start Guide” to view fault buffer contents.
Manually
To clear a Type 2 fault, remove power from the controller. Wait for the LEDs to darken before re-applying power. Controller can be
restarted at this point; however, due to the nature of type 2 faults, the controller will more than likely trip immediately. This can be helpful
in identifying which faults need to be addressed.
Type 1 Fault Descriptions and Corrective Measures
Listed below are the most common faults that will occur with the Big Ass Fans systems. Included in the description are the most
common corrective measures and/or test procedures that will be required for the repair of the system.
F004 - Under Voltage
DC Buss Voltage fell below the minimum value. Monitor the AC supply for low voltage and/or line interruptions. It is not uncommon for
voltage levels in commercial and industrial areas to vary up to 10%. Power events exceeding 100 milliseconds in duration will usually
result in this type of fault. Possible causes include large across-the-line starters, active power factor correction, large transformers
coming on-line, welders, etc. Commonly referred to as a “Brown Out.” The controller will also report this fault every time the unit is
intentionally powered down.
Refer to the following section(s):
Power Requirements (p. 28)
Additional Input Power Considerations (p. 63)
F005 - Over Voltage
DC Buss Voltage exceeded maximum value. Monitor the AC supply for high voltage transients and/or line interruptions. It is not
uncommon for voltage levels in commercial and industrial areas to vary up to 10%. Power events exceeding 100 milliseconds in
duration will usually result in this type of fault. Possible causes include active power factor correction, large transformers going off-line,
lightning strikes (direct hit or local to your power grid), phase-to-phase voltage imbalance, phase to ground voltages in access of 125%
nominal phase-to-phase voltage, “High leg” or “Wild leg,” welders, foreign signal present on controller’s AC Supply, motor regen, etc.
FAULT
VOLTS
AMPS
HERTZ
RUN
FWD
REV
PRGOGRAM
