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TROUBLESHOOTING
This section provides information on fault codes and troubleshooting tips for potential
system problems.
WARNING! In some instances, the unit will shut down, then automatically restart
when conditions allow. Always disconnect input power from the unit and wait for
internal electrical charges to dissipate before performing service on the unit or its
connected loads.
WARNING: Risk of electric shock. De-energize the unit by disconnecting all
incoming sources of power, then wait 10 minutes for internal charges to dissipate
before servicing the equipment.
HIGH VOLTAGE: This equipment is connected to line voltages that can create a
potentially hazardous situation. Electric shock could result in serious injury or death.
This device should be installed and serviced only by trained, licensed and qualified
personnel. Follow instructions carefully and observe all warnings.
Always check the LCD display for fault codes if the drive or its load is not operating.
Disconnecting the input power could potentially clear any fault code indication, possibly
losing valuable information for troubleshooting.
8.1 Fault Codes
Fault codes are indicated on the graphic display. See Table 16 for a list of fault codes.
The drive can be programmed to automatically restart after certain faults and a time delay
can be programmed before the restart is allowed. To interrupt a time delay countdown and
allow auto restart, press both arrow keys on the keypad and hold for one second. The load
will start immediately. The Restart Log is a resettable fault log that can be used to monitor
faults that allow auto restart. Use the Clear Memory function to reset the Restart Log and
set all fault counters to zero. See Section 4.4, Keypad Main Menu Items, for more
information on Restart Log and Clear Memory function.
WARNING: Certain faults do not allow an auto restart. These faults generally indicate
the possibility of damage to the drive and/or the load, or indicate the possibility of a
dangerous condition. When this type fault occurs, the display will read NO AUTO
RESTART. Refer to Table 16, Fault Codes, to determine if the fault allows an auto restart.
The number 1 in the notes column indicates that auto restart is not allowed. When this type
of fault occurs, contact the factory for assistance before restarting or troubleshoot the
system thoroughly. These faults can be cleared only by cycling input power OFF/ON.
WARNING: Unit may restart automatically without warning after a fault when
operating conditions permit. Make certain input power is disconnected before servicing the
unit or its connected loads.
Clearing a Fault
If the unit is programmed to automatically restart after a particular fault, the display
indicates that the unit will restart and will count down the seconds remaining to restart on
the display. The countdown can be interrupted by pressing and holding both arrow keys.
The load will immediately restart.
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