On-Board FastRegen Control Module Programming and Operation Instructions
P/N 8040406
3-63
C
HELIX TECHNOLOGY CORPORATION
-
TI
CRYOGENICS
Programming Second Stage Temperature Limits
This procedure programs relay 1 or 2 to activate/deactivate when either of
the cryopump second stage temperature limits are reached.
1. Press the RELAYS key on the keypad/display.
2. Press 1 or 2 depending upon which relay is being selected. The
selected relay number along with the ON/OFF and Auto/Manual
status are displayed.
3. Press the Next key until the 2nd Stage Temperature is displayed.
4. Press the Enter key. The cursor is placed under the current lower
limit (LL) value.
NOTE: If a number which is not in the proper range is entered, LL-???K
or UL-???K will be displayed. Press the Clear button to continue.
5. Using the keypad, enter the new lower limit value.
6. Press the Enter key. The cursor is placed under the current upper
limit (UL) value.
7. Using the keypad, enter the new upper limit value.
8. Press the Enter key. The limit values are programmed.
9. Press the MONITOR key. The On-Board microprocessor will
monitor system operation.
Programming Cryo Thermocouple Pressure Limits
This procedure programs relay 1 or 2 to activate/deactivate when either of
the cryopump thermocouple pressure limits are reached.
1. Press the RELAYS key on the keypad/display.
2. Press 1 or 2 depending upon which relay is being selected. The
selected relay number along with the ON/OFF and Auto/Manual
status are displayed.
3. Press the Next key until Cryo TC Press. appears in the display.
4. Press the Enter key. The cursor is placed under the current lower
limit (LL) value.
NOTE: If a number which is not in the proper range is entered, LL-???µ or
UL-???µ will be displayed. Press the Clear button to continue.
5. Using the keypad, enter the new lower limit value.
6. Press the Enter key. The cursor is placed under the current upper