Installation manual

Overview
52 S1A53838 09/2011
With Serial Communication
A drive detected fault can be cleared over the serial communication link (Modbus, Metasys N2, Apogee FLN,
BACnet or LonWorks) if parameter [Command mode sel] (CMOd) is set to 2.
In the event of an OL1 or OL2 detected fault, the following time periods needs to pass before a clear detected
fault is possible:
z OL1 (drive overload) - about 30 seconds after the occurrence of the event.
z OL2 (motor overload) - about 120 seconds after the occurrence of the event.
By Cycling Line Power
A drive detected fault can also be cleared by removing and restoring line power. Be certain that the cause of the
detected fault is no longer present and leave power removed long enough for all of the LEDs on the face of the
drive to go out.
Cycling power to clear a detected fault can cause the detected fault history to be lost. Refer to parameter F602
on page 127
for drive fault memory options.