Configuring Switch - ABB PGC2000 Operation And Service Manual

Process gas chromatograph
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5. In the Names field you can change the zone name by typing a new name, up to a maximum of
ten characters long. When you have completed the name, cursor to another field.
6. In the low and high alarm limits field, type the desired alarm value and then cursor to another
field.
7. After you have completed and verified the changes, press the F1 (Exit) soft key.
8. On the next screen, press the F2 (Exit And Update) soft key to save the changes, or press the F1
(Escape) soft key to retain the original values. Pressing F2 saves the values in the Name, Low
Limit, and High Limit fields.
9. Press the F1 soft key as necessary to return to the Background screen.

Configuring SWITCH

SWITCH displayed in the Config column indicates an Isothermal Zone with a temperature Set Point
configured at the factory and not intended to be changed. If it becomes necessary to change the Set
Point, perform the following sequence of steps.
Before opening any analyzer doors, ensure the area is safe and hazard-free, and
will remain so the entire time the analyzer is open. If the analyzer has X Purge,
operate the override function as described in "X Purge Override Option."
1. Open the GCC control panel.
2. On the Background screen, press the F2 (Manual Control) soft key.
3. On Manual Control Mode screen, press the F4 (Pres & Temp Control) soft key.
4. On the Pres & Temp Control screen, cursor to TEMP CONTROL and then press the F2 (Manual
Temp Control) soft key.
5. On the Manual Temperature Control Mode screen, cursor to the Zone # field and enter the
desired zone number (1 - 5).
6. Cursor to the Set Point field and enter the setpoint temperature (the required operating
temperature for this zone).
7. Press the F2 (Accept Control Point) soft key. The GCC displays "Hold Switch on Temp Board to
Accept New Set Point."
8. Hold down the switch on the DTC Backplane PCB. The GCC displays the message "Are You
Sure?"
9. Continue holding the switch down and press Y on the keyboard to confirm the change. The GCC
sends the new setting to the DTC Backplane PCB where it is checked against the established
limits (this only takes a few seconds).
10. If it accepts the new temperature, the temperature appears on the screen in the Set Point field.
Release the switch and close the front panel.
11. If the GCC does not accept the Set Point, Temp Zone name flashes and * TEMP BD ALARM *
flashes on the message line. If this happens, release the switch and check the temperature with
the T-Rating on the Manual Temperature Control Mode screen.
4-43
CAUTION
2000-OSM, F1

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