Rockwell Automation 7763 Medium Voltage OneGear SMC Flex Motor Controller (10-15 kV) - Manual (Page 82)

82 Rockwell Automation Publication 7760-UM001D-EN-P - October 2014
Chapter 6 Diagnostics
Program the SMC Flex controller for a Clear Fault, which can be found in Main
Menu/Diagnostics/Faults.
If a human interface module is connected to the controller, press the Stop button.
Note: A stop signal from the HIM will always stop the motor and clear the
fault regardless of Logic Mask configuration.
If a RESET push button is present, the N.O. push button auxiliary contact can be
connected to Option Input #2 (terminal 15). Option Input #2 must be
programmed for Clear Fault.
Cycle control power to the SMC Flex controller.
Fault Buffer The SMC Flex controller stores in memory the five most recent faults. Display
the fault buffer by selecting the View Faults Queue and scrolling through the
fault buffer parameters. The information is stored as fault codes and fault
descriptions. A fault code cross-reference is provided in Table 6.A.
Note: Complete MV SMC Flex controllers are factory tested to prove fault trip
functions, so the Fault Buffer may already have fault codes in the queue.
Fault Codes
Table 6.A provides a complete cross-reference of the available fault codes and
corresponding fault descriptions.
Table 24 - Fault Code Cross-Reference
IMPORTANT An overload fault cannot be reset until the Motor Thermal Usage, parameter
12, value is below 75%. See
Protection and Diagnostics on page 28 for further
details.
Fault Code Fault Code
Line Loss A 1 Stall 25
Line Loss B 2 Phase Reversal 26
Line Loss C 3 Coms Loss P2 27
Shorted SCR A 4 Coms Loss P3 28
Shorted SCR B 5 Coms Loss P5 29
Shorted SCR C 6 Network P2 30
Open Gate A 7 Network P3 31
Open Gate B 8 Network P5 32
Open Gate C 9 Ground Fault 33
PTC Pwr Pole 10 Excess Starts/Hour 34
SCR Overtemp
(1)
11 Power Loss A 35