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Fault Log
The Fault Log records the number of times a particular fault has occurred. To access the Fault Log,
press the MENU key until the Main Menu item, FALUT LOG, appears. Press ENTER key to access the
list of faults.
The Fault Log will continue to log the number of faults that have occurred until it is reset through the
Main Menu item RESTART LOG or CLEAR MEMORY. The Fault Log is not to be confused with the
restart counter. The restart counter is associated with the automatic restart function and is reset
whenever the input power is cycled OFF/ON.
Table 22 - Troubleshooting
Is SW1 in the off position?
Locate SW1, next to fuses F2 and F3. Make sure the switch is
in the UP position. See Figure 36 on next page for location.
Is a fault code indicated?
Based on the fault code, resolve any factors that are likely
causing the fault.
Clear the fault by pressing both arrow keys on the keypad or
by cycling input power OFF/ON.
Are the remote switches AUX1 and
AUX2 closed?
Check the status of the switches or jumpers connected to
AUX1 and AUX2 on the Control Terminals. The LCD display
indicates the status of AUX terminals in the default display
mode. All AUX terminals must be closed for the motor to run
in AUTO mode.
Are the signals to the Control
Terminals corrupted?
Shielded cable is required for AUX terminal switch leads
longer than 20 ft. Regular wire will induce capacitance in the
line and corrupt control signals. Shielded cable is
recommended for all Control signal cables.
Is the keypad in MAN or OFF
mode?
The keypad will override signals on the Control Terminals
when OFF or MAN is selected. Keypad must be in AUTO
mode for external control signals to control the motor.
Is the maximum frequency set at 0
Hz?
Check the maximum frequency by using the keypad to
navigate MAIN MENU>CHANGE PARAMETER
VALUES>OPERATING PARAMETERS>MAX FREQUENCY.
Are the input terminals L1 and L2
energized?
Green LED D9 on the Master Control printed wiring board
should be on to indicate board is powered. Green flashing
D16 indicates the program is running. If no LEDs are lit on the
PWB, check the main input fuses or breaker. Check the
secondary circuit fuses. See Figure 37, Fuse Location
Motor is turning the
wrong direction
Phase sequence on output
terminals U/T1, V/T2, W/T3 is out
of order
Swap any two of the three motor leads on the output
terminals.
Real Time Clock (RTC)
clearing or not providing
fault time stamps
Replace CR2032 battery, located on Control Board beneath
graphic display.
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