Rockwell Automation 7763 Medium Voltage OneGear SMC Flex Motor Controller (10-15 kV) - Manual (Page 83)

Rockwell Automation Publication 7760-UM001D-EN-P - October 2014 83
Diagnostics Chapter 6
Fault and Alarm Auxiliary
Indication Auxiliary contacts can be programmed for Fault or Alarm, N.O. or N.C.
indication. Parameter setup can be found in the Parameter/Motor Protection
group when modifying parameters in the Program Mode.
Fault Definitions
Note: Additional details regarding fault definitions can be found in Chapter 1–
Product Overview.
Table 25 - Fault Definitions for the SMC Flex
Motor PTC 12 Power Loss B 36
Open Bypass A 13 Power Loss C 37
Open Bypass B 14 Hall ID 38
Open Bypass C 15 NVS Error 39
No Load A 16 No Load 40
No Load B 17 Line Loss A 41
No Load C 18 Line Loss B 42
Line Imbalance 19 Line Loss C 43
Overvoltage 20 V24 Loss 45
Undervoltage 21 V Control Loss 46
Overload 22 Input 1 48
Underload 23 Input 2 49
Jam 24 System Faults 128…209
(1) Not applicable in MV applications.
Fault Code Fault Code
Fault Description
Line Loss (F1, F2, F3) The SMC Flex can determine if a line connection has been lost, and will indicate this accordingly.
Shorted SCR Shorted SCRs will be detected and starting will be prohibited by the SMC Flex.
Open Gate Open gate indicates that an abnormal condition that causes faulty firing (e.g., open SCR gate or faulty gate driver) has been sensed
during the start sequence. The SMC Flex controller will attempt to start the motor a total of three times before the controller shuts
down.
Power Pole PTC Overtemperature The power pole temperature in each phase is monitored. If the temperature rises above the predetermined level, the unit will fault to
protect the power pole. A reset can be performed once the temperature falls below this level. This fault may also represent loss of gate
driver power during gating (MV applications only).
Motor PTC A motor PTC can be connected to terminals 23 and 24. If the PTC parameter is enabled and the PTC trips, the SMC Flex will trip and
indicate a Motor PTC fault.
Open Bypass Power Pole bypass contacts are monitored for proper operation. In the event of a contact failure, the SMC Flex will indicate an Open
Bypass fault.
No Load The SMC Flex can determine if a load connection has been lost, and No Load fault will be indicated.