Table C-1:Rs-232 Regen Responses And Descriptions - HELIX CTI-CRYOGENICS On-Board FastRegen Programming And Operation Instructions

Appendix C - RS-232 REGEN Responses
REGEN Response
A,\
B, C, E ,^, ]
D, F, G, Q, R
H, S
C-2
Table C-1: RS-232 REGEN Responses and Descriptions
Cryopump OFF
WARM-UP - During warm-up you may also want to display
the actual second stage temperature and the temperature it is attempt-
ing to reach.
Example: WARM-UP 272K/310K
The 310 is fixed and the 272 is the response from the
command K.
PURGE GAS FAILURE - means that there is a failure with the purge
gas. The On-Board Module will not turn the heaters on and the
warmup temperature is reduced to 285K. You should be aware that
there is a problem with the purge gas when this response appears.
The D response means purge gas fail if the repsonse to "v" is equal to
8. If the response to "v" is 4, the heater failure message should be
displayed.
Example: PURGE GAS FAILURE. . .WARM-UP 234K/285K
EXTENDED PURGE
REPURGE CYCLE
This response is used in conjunction with lowercase l and k
An H response means that the pump has reached its warm-up temper-
ature and the purge is being extended for some amount of time. The
time is determined when the regeneration parameters are
programmed. If the response to 1 is 0, then this is called
EXTENDED PURGE. If the response to 1 is greater than 1, then this
is called REPURGE CYCLE. The time remaining in minutes is com-
mand k.
Example: EXTENDED PURGE
REPURGE CYCLE
REPURGE CYCLE #2
Description
12 MIN
9 MIN
5 MIN
-
C TI CRYOGENICS
HELIX TECHNOLOGY CORPORATION
l = 0 k = 12
l = 1 k = 9
l = 2 k = 5
P/N 8040406