On-Board FastRegen Control Module Programming and Operation Instructions
P/N 8040406
C-3
C
HELIX TECHNOLOGY CORPORATION
-
TI
CRYOGENICS
I,J,K, T, a*, b*, j*,
n*
ROUGH TO BASE
Purging is completed and the pump is being roughed to a base pres-
sure. This is displayed showing the actual pressure, and the base
pressure it is attempting to reach. The commands for this
information are
L actual pressure
P3? Pressure attempting to reach (programmed value)
Example:
ROUGH 325u/100u = ROUGH actual pressure/try to reach pressure
ROUGH L u/P3?u
NOTE: If this is a multi-pump system, the pump roughing valve may
be waiting to use the valve.
The valve use is controlled by a token pass. Use the following com-
mand to access this information,
Command Q? A response of 1 means the pump has the token.
A response of 2 means the pump needs the token.
L
ROR (Rate-of-Rise): In this display we show how many rate-of-rises
have been done the actual rate-of-rise and the rate-of-rise it is
attempting to reach (the programmed value).
The commands for this information are:
m ROR#
n Last ROR value (actual rate-of-rise for most recent test)
P4? Programmed value for ROR
Example of Display:
ROR #1, 34/10 u/MIN
ROR #m, n/p4? u/MIN
Table C-1: RS-232 REGEN Responses and Descriptions (Continued)
REGEN Response
Description