Instruction manual

Instruction Manual
760006-A
September 2001
11-4 Appendices Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA 2000 Platform
Alarm Description – v2.3
V2.3 of the Analog I/O Module software
added the ability to define the operation of
each of the seven relays, and to include
Analyzer-specific alarm indication. Each
Analyzer module has a list of possible
specific alarm indications, such as flow
failure or flame-out. Software in the 2.3 or
later Platform allows the menu for the I/O
module to include these alarm descrip-
tions as if they were known to the I/O
module in advance, providing a transpar-
ent means of controlling these alarms.
Possible alarm indications include low
flow, high flow, under- and over-range,
the status alarms as above, and specific
Analyzer alarms such as flame out for a
FID or NO mode for a CLD. The specifics
are determined by the relevant Analyzer
module.
The default setting of the alarms is identi-
cal to those in the V2.2 Alarm I/O Module
described in the previous setting, but it is
possible to change them as desired.
7. Enter the Main menu
8. Select Expert controls and setup...
9. Select Auxiliary module setup...
10. Select the Analog I/O Module
11. Select Alarm conditions...
12. Select the relay to be configured
13. For each relay, use the ↑ ↓ cursor
keys to select the signal to which it
responds.
14. When the desired signal is shown,
press ↵ (enter) softkey to set.
ITEM FUNCTION NOTES
Output Analog, 0 to 5 V, 0/4 to 20 mA
Supports auto-range changing, or independent
rage selection from that of Analyzer.
Alarm relay 1-7 Programmable function SPDT
Input line 1-6 Programmable function Depends on Analyzer bound
Table 11-3. Available Functions – Analog Output with 3 Alarms (v2.3)