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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 5 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 21 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 21, 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 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.
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