Capstone Turbine Corporation
Model C65 Hybrid UPS User’s Manual
400027 Rev A (July 2010) Page
59 of 66
Capstone reserves the right to change or modify, without notice, the design, specifications, and/or contents of this document without
incurring any obligation either with respect to equipment previously sold or in the process of construction.
The fault code is a number up to five digits in length that, along with the fault code
description, helps the Capstone Authorized Service Provider determine the cause of the
incident. Some fault codes can be useful to the operator, as they indicate common
conditions that can occur in system. Table 7 shows a list of common protective relay
faults. Utility grid events such as these will cause the Hybrid UPS systems to go into
Emergency Mode.
Table 7. List of Common Protective Relay Fault Codes
Type of Fault Load LCM Codes Grid LCM Codes
Overvoltage Phase A 10008 10208
Overvoltage Phase B 10009 10209
Overvoltage Phase C 10010 10210
Undervoltage Phase A 10011 10211
Undervoltage Phase B 10012 10212
Undervoltage Phase C 10013 10213
SW Overcurrent Phase A 10014 10214
SW Overcurrent Phase B 10015 10215
SW Overcurrent Phase C 10016 10216
SW Overcurrent Phase N 10017 10217
Under Frequency 10018 10218
Delta Frequency 10019 10219
Over Frequency 10020 10220
Fast Overvoltage 10038 10238
Fast Undervoltage 10039 10239
Fast Overvoltage Phase A 10047 10247
Fast Overvoltage Phase B 10048 10248
Fast Overvoltage Phase C 10049 10249
Fast Undervoltage Phase A 10050 10250
Fast Undervoltage Phase B 10051 10251
Fast Undervoltage Phase C 10052 10252
Fast Under Frequency 10053 10253
Fast Over Frequency 10054 10254
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