Fault diagnostics, Protection faults – Rockwell Automation 294D ArmorStart LT Distributed Motor Controller DeviceNet Version - User Manual User Manual
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Rockwell Automation Publication 290D-UM001A-EN-P - June 2012
Chapter 5
Diagnostics
Fault Diagnostics
Fault diagnostics capabilities built in the ArmorStart LT Distributed Motor
Controller are designed to help you pinpoint a problem for easy troubleshooting
and quick restarting.
Protection Faults
Protection faults will be generated when potentially dangerous or damaging
conditions are detected. Protection faults are also known as “trips” or “faults”.
These faults will be reported in multiple formats, including:
•
Bit enumeration in the TripStatus parameter (parameter 16) used as
discrete bits or in DeviceLogix
•
In the ArmorStart LT web server for ArmorStart EtherNet/IP version
•
As a sequence of LED flashes on the ECM
➊ Can not be disabled.
A “ProtectFltEnable” parameter (param 42) is used to enable and disable
individual protection faults. This parameter will be a bit enumerated parameter
with each “disable-able fault” bit enumerated. Not all Faults can be disabled.
Setting a bit to the value “1” enables the corresponding protection fault. Clearing
a bit disables the protection fault. For protection faults that can not be disabled
the value is always “1”.
There are two Protection Fault Reset modes:
manual and automatic. When
parameter 41 “ProtFltResetMode” is set to the value 0=Manual mode, a manual
fault reset must occur before the fault is reset. When manual reset mode faults are
LED Flash
Bit Enumeration
290D/291D Trip Status Bits
294D Trip Status Bits
1
0
OverloadTrip ➊
OverloadTrip ➊
2
1
PhaseLossTrip
PhaseLShortTrip
3
2
UnderPowerTrip ➊
UnderPowerTrip ➊
4
3
SensorShortTrip ➊
SensorShortTrip ➊
5
4
PhaseImbalTrip
OverCurrentTrip
6
5
NonVolMemoryTrip ➊
NonVolMemoryTrip ➊
7
6
reserved
ParamSyncTrip ➊
8
7
JamTrip
DCBusOrOpenDiscnnct ➊
9
8
StallTrip
StallTrip ➊
10
9
UnderloadTrip
OverTemperature ➊
11
10
reserved
GroundFault ➊
12
11
reserved
RestartRetries
13
12
reserved
DriveHdwFault ➊
14
13
OutputShortTrip ➊
OutputShortTrip ➊
15
14
UserDefinedTrip
UserDefinedTrip
16
15
HardwareFltTrip ➊
HardwareFltTrip ➊