Section 8: Troubleshooting - Eaton NRX Series Installation Instructions Manual

Effective December 2010
Table 12. Cause-of-Status Code Definitions
Code Definition
0 Unknown
1 Normal operating mode
3 Instantaneous phase overcurrent
11 Overvoltage
12 Undervoltage
15 Underfrequency
16 Overfrequency
17 Current unbalance
18 Voltage unbalance
19 Apparent power factor
26 Power demand
27 VA demand
30 Total harmonic distortion
31 Operations count
33 Control via communications
37 Coil supervision
39 RAM error
43 EEROM error
46 Watchdog
61 Long delay phase overcurrent
62 Short delay phase overcurrent
63 Fixed instantaneous phase
overcurrent #1
64 Bad/missing rating plug
Code Definition
65 Reverse power
66 Fixed instantaneous phase overcurrent #2
67 Reverse phase
68 Reverse sequence
69 Phase current loss
71 Alarm active
72 Bad frame
73 Phase currents near pickup
75 Making current release
76 Fixed instantaneous phase overcurrent #3
77 Set points error
78 Over-temperature
80 Long delay neutral overcurrent
82 Historical data
84 Ground fault (instantaneous or delay)
85 Earth fault (instantaneous or delay)
146 Frequency out of range
148 Check auxiliary switch
149 Overcurrent
153 Maintenance mode
154 Breaker mech. fault
156 Disconnect position
157 Trip Actuator
Instructional Leaflet IL01301034E

Section 8: Troubleshooting

The following are the most common issues experienced
with the installation of a Series NRX Modbus communica-
tions adapter module. If you have additional questions or
need further information and/or instructions, please contact
your local Eaton representative or visit www.eaton.com.
Observation 1—Status LED not flashing
Action—Verify proper input power to module connectors.
Observation 2—Status LED flashing green, but module
does not change state in response to master command
requests
Action—Verify correct module address.
Action—Verify communication cable
is connected correctly from master
to module.
EATON CORPORATION www.eaton.com
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