Rockwell Automation 294D ArmorStart LT Distributed Motor Controller DeviceNet Version - User Manual - Manual (Page 171)

Rockwell Automation Publication 290D-UM001A-EN-P - June 2012 171
Diagnostics Chapter 5
Table 24 - Fault LED Indicator for Bulletin 290D/291D
Blink
Pattern Auto-Reset Disable Default
Bulletin 290D/
291D Trip Status Description Action
1 Yes No On Overload Trip The load has drawn excessive current and
based on the trip class selected, the device
has tripped. Verify that the load is operating correctly and is
properly set-up, [FLASetting] Parameter 28,
[OLResetLevel] Parameter 29. The fault may be reset
only after the motor has sufficiently cooled.
2 Yes Yes Off Phase Loss Trip The ArmorStart LT has detected a missing
phase. This fault is generated by monitoring the relative
levels of the 3-phase currents. Correct phase
imbalance or disable fault using [ProtectFltEnable]
Parameter 42.
3 Yes No On Under Power Trip The ArmorStart LT detected switched or
unswitched power dip below 19.2 V for
greater than 50 ms, or 13 V for greater
than 4 ms. Check control voltage, wiring, and proper polarity (A1/
A2/A3 terminal).
4 No No On Sensor Short Trip This error indicates a shorted sensor,
shorted input device, wiring input
mistakes. Correct, isolated or remove wiring error prior to
restarting the system.
5 Yes Yes Off Phase Imbalance Trip The ArmorStart LT has detected a current
imbalance in one of the phases. Check the power system for current imbalance and
correct. Correct phase imbalance or disable fault using
[ProtectFltEnable] Parameter 42.
6 No No On Non-Volatile Memory
Trip This is a major fault, which renders the
ArmorStart LT inoperable. Possible causes
of this fault are transients induced during
Non-Volatile Storage (NVS) routines. 1. If the fault was initiated by a transient, power
cycling may clear the problem.
2. This fault may be reset by a [SetToDefaults]
Parameter 68.
3. Replacement of the ArmorStart LT may be required.
7 — — — Reserved — —
8 No Yes Off Jam Trip During normal running (after starting
period), the RMS current draw exceeds the
prescribed fault level. This fault is generated
when current is greater than the Jam Trip
Level for longer than the Jam Delay time
after the Jam Inhibit time has expired. 1. Check for the source of the jam (for example,
excessive load or mechanical transmission
component failure).
2. Check [JamInhibitTime] Parameter 70,
[JamTripDelay] Parameter 71, and [JamTripLevel]
Parameter 72 setting.
9 No Yes Off Stall Trip During starting, the motor did not reach
running speed within the prescribed
period. This fault is generated when the
RMS current is greater than
[StallTripLevel] Parameter 75 or longer
than [StallEnbldTime] Parameter 74
during motor starting. 1. Check for source of stall (for example, excessive
load, or mechanical transmission component
failure).
2. Check [StallEnabledTime] Parameter 74 and
[StallTripLevel] Parameter 75.
3. Check if [FLASetting] Parameter 28 is set correctly.
10 No Yes Off Underload Trip Underload protection is for undercurrent
monitoring. A trip occurs when the motor
current drops below the trip level. Check motor and mechanical system for broken shaft,
belts, or gear box. Check [ULInhibitTime] Parameter
76, [ULTripDelay] Parameter 77, [ULTripLevel]
Parameter 78, and [ULWarningLevel] Parameter 79.
11 — — — Reserved — —
12 — — — Reserved — —
13 — — — Reserved — —
14 No No On Output Short Trip This fault is generated when a hardware
output short circuit condition is detected. Correct, isolate or remove wiring error prior to
restarting the system.
15 Yes Yes Off User Defined Trip This fault is generated either in response
to the rising edge of user input 0...5,
[Input00Function...Input- 05Function]
Parameter 58...63, or by DeviceLogix. This fault is generated based on user configuration.
This fault may be reset after the condition that caused
it is removed. For example, the Auxiliary Input goes
low or the DeviceLogix logic drives the bit low.
16 No No On Hardware Fault Trip This fault indicates that a serious
hardware problem exists. Power cycle to correct. If fault persists the ArmorStart
LT requires replacement.