iv Introduction DECS-200
Software
Version and Date
Change
1.03.00, 09/01
• Initial Release
1.03.03, 05/02
• Updated BESTCOMS to add oscillography trigger to step response
1.03.04, 06/02
• Improved overall functionality. Allowed V/Hz Slope Setting adjustments to be made
in increments of 0.01 instead of 0.1. The default value of the Analysis screen was
changed from 10% steps to 2% steps.
1.03.05, 11/02
• Added the EDM pole ratio calculator. Removed the Number of Poles parameter.
1.04.00, 06/04
• Added takeover-style OEL, SCL, and loss of field settings to interface.
Manual
Revision and Date
Change
—, 01/02
• Initial release
A, 01/02
• Changed introduction section to reflect the January first printing date. Repaginated
the introduction so that the table of contents begins on an odd page. Edited the
table of contents entries for sections five and seven to reflect the appropriate
names.
B, 10/02
• Updated Figure 4-3 to correct error in terminal numbers. Updated terminal
assignments in Section 1 to correct the error reflected from old Figure 4-3. Added
Section 8,
Troubleshooting
. Corrected various minor errors.
C, 11/02
• Changed
Exciter Diode Monitor (EDM) Protection
in Section 1 to reflect the pole
ratio and increment. Removed Gen Poles and added Pole Ratio to Figure 2-2.
Made changes to Figures 2-6 and 2-8. Deleted reference to Generator Poles and
Exciter Poles in Sec. 3, Exciter
Diode Monitor (EDM) Function
but added Pole
Ratio. Updated the list of internal variable on page 3-14.Revised the
Installation
portion in Sec. 5 for using a CD-ROM disc. Added the Pole Ratio Calculator in Sec
5 as well as updated the screen shots. Updated screen shots in Figures 6-1, 6-3, 6-
7 and 6-14. Changed increment levels of register 47747-48, Table 7-17. Updated
Table 7-25.
D, 06/04
•
Section 1
: Updated output contact ratings.
•
Section 2
: Modified tables and menu branch drawings to show added settings.
•
Section 3
: Added functional description of takeover OEL and SCL. Removed
reference to A-phase and C-phase as acceptable sensing current source for
crosscurrent compensation applications.
•
Section 4
: Added Crosscurrent Sensing sub-section with table listing crosscurrent
sensing terminals.
•
Section 5
: Revised or added all applicable BESTCOMS screens and setting
descriptions to accommodate new settings/features.
•
Section 6
: Added/changed BESTCOMS screens and DECS-200 settings to
accommodate changed BESTCOMS screens and new DECS-200 settings.
•
Section 7
: Added/revised Modbus register tables to accommodate new DECS-200
settings.
E, 12/05
• Removed expired patent information from Section 1.
• Added missing setting descriptions to Section 5
• In Section 4, added caution box regarding the length of screws used to attach
escutcheon plate to DECS-200
• Made various minor corrections/changes throughout manual
F, 08/06
• Added illustrations showing left-side terminals and typical connections to Section 4,
Installation
. (These figures were omitted in revision E of the manual.)
• Corrected minor errors in Section 2,
Human-Machine Interface, Front Panel
Operation
.
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