Alarms; Electronic Pressure Control Option; Physical Description; Operator Settings - ABB PGC2000 Operation And Service Manual

On power loss, Set Points and Ramp Rates for all programmable zones (PROG and
PROG/C) are lost. You must re-enter the Values manually or execute the method
stored in the Method Table.

Alarms

Digital Temperature Controller alarms are described in "Temperature Board" alarms in Section 6.
When a temperature alarm occurs, it appears as *** ALARM *** flashing on the Background screen
and * TEMP BD ALARM * flashing on the Manual Temperature Control Mode screen. To identify the
specific alarm, press the F4 (Alarm) soft key on the Background screen.

ELECTRONIC PRESSURE CONTROL OPTION

The optional Electronic Pressure Control (EPC) replaces the mechanical regulators and gauges in the
Pressure Control Panel. The EPC provides up to five individually controlled pressure zones.

Physical Description

The EPC is comprised of an Electronic Pressure Control Multibus PCB and an EPC Module which
contains up to five pressure zones.
The EPC is set up at the factory and should not require adjustment on site.

Operator Settings

You can set the zone functions for the EPC and also program specific functions in the method tables.
The functions you can set or program appear on the following screens:
Screen

Manual Pressure Control Mode

Pressure Configuration Table
Pressure Control Table
Pressure Check Table
Manual Pressure Control Mode
This screen allows operator control of the Electronic Pressure Controller. The Manual Pressure
Control Mode screen allows you to change these fields: Enter Valve, Zone #, Set Point, and Ramp
Rate. Always check the original application-specific pressure limits listed in the Data Package
provided with the analyzer to ensure any changes are valid. To access this screen perform the
following steps:
4-51
NOTE
NOTE
Function
Valve On/Off
Set Point, by zone
Ramp Rate, by zone
Range
Zone Name
Zone relationship
Set Point, by entry number in method
Ramp Rate, by entry number in method
Zone relationship
Alarm Pressure value, by entry number in method
Action, by entry number in method
2000-OSM, F1