Edwards GXS Series User Manual

10.4 Inverter warnings and alarms
The inverters used to drive the dry pump and the booster can also generate warnings
and alarms if problems are encountered. The inverter warning and alarm codes are
displayed by the PDT (if ed).
The alarm and warning codes are each reported as a 16‑bit word encoded as 4
hexadecimal numbers. The codes are displayed as follows:
1234 5678
Where:
▪
the rst 4 digits signify an alarm code
▪
the second 4 digits signify a warning code.
Digits 1‑8 are reported as the hexadecimal digits from 0 to F.
To determine the cause of a warning or alarm you must rst decode each hexadecimal
number. 0 indicates that there is no alert for that bit. Normally you will only see the
codes of 1, 2, 4 or 8 for each bit but if two or more events occur in the same bit then
these will be added together.
For example:
5 = 1 + 4 so if code 5 is displayed it means that alerts 1 and 4 are acve
B = 1 + 2 + 8 so if code B is displayed it means that alerts 1, 2 and 8 are acve.
To decode the inverter warning and alarm codes, refer to Table: Hexadecimal to digital
conversion to convert the hexadecimal digits into the alert combinaons and then refer
to Table: Inverter alarm codes and Table: Inverter warning codes).
Table 57
Hexadecimal to digital conversion - Bit set combinaons
Hexadecimal Decimal Combinaon
F 15 8+4+2+1
E 14 8+4+2
D 13 8+4+1
C 12 8+4
B 11 8+2+1
A 10 8+2
9 9 8+1
8 8 8
7 7 4+2+1
6 6 4+2
5 5 4+1
4 4 4
3 3 2+1
2 2 2
1 1 1
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M58800880_H - Fault nding

Edwards GXS Series Specifications

General

Brand	Edwards
Model	GXS Series
Category	Water Pump
Language	English