Rockwell Automation 1557 MEDIUM VOLTAGE AC DRIVE - Manual (Page 301)

TROUBLESHOOTING 10-59
1557-UM050F-EN-P – June 2013
External Fault Configuration
This is a detailed explanation for setting the Fault Class of the configurable external fault/warnings.
There are 16 configurable external fault/warnings. The first eight external fault inputs 1 to 8 are hard wired
into the digital I/O circuit boards. Inputs 1 to 3 are located on digital I/O board #1, and inputs 4 to 8 are
located on the optional digital I/O board #2. External faults 9 to 16 are read into communication processor
board (CPB) via a SCANport adapter.
Under the “SETUP” soft key directory you will find two headings, FAULTS and EXTERN. "Extern" is a
listing of the external fault labels. The default labels for the external faults are the numbers 512 through
527, with 512 representing config. fault / warning #1, and 527 represents config. fault / warning #16.
Change any of the utilized external faults / warnings to reflect the particular piece of equipment providing
the input (if not already done).
Under "Faults" you have the ability to enable or disable almost all drive faults. Specific external faults can
be turned on or off by setting their values to “off” or “on”. “Off” causes the protection and messaging to be
turned off.
Under “P Options” the Ext. Flt. Class 1 and 2 parameters are available. These are four digit hex numbers
with each individual hex digit representing four individual config. faults. The four digit hex number (e.g.
FFFF) can be decoded into 16 binary bits which correspond to the 16 configurable fault / alarms (1 to 16,
right to left), as indicated.
Recall:
BIN HEX BIN HEX.
0001 = 1 1010 = A
0010 = 2 1011 = B
0011 = 3 1100 = C
0100 = 4 1101 = D
0101 = 5 1110 = E
0110 = 6 1111 = F
0111 = 7
1000 = 8
1001 = 9
Config. Fault / Warning
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
External Fault Class 1 “hex.”
X X X X
External Fault Class 1 “bin.”
x x x x x x x x x x x x x x x x
External Fault Class 2 “hex.”
X X X X
External Fault Class 2 “bin.”
x x x x x x x x x x x x x x x x
where: “X” represents a hexadecimal digit and “x” represents a binary bit.
Note: The horizontal position of the binary bits corresponds to the specific config. fault / warning
located directly above the particular bit.
The class of a particular config. fault / warning is determined by the combination of both of the External
Fault Class parameter‟s bits.