Program status – Carbolite 302P4 User Manual
Page 18
Programming
18
MC22 -GB-v1.01
4.9
Program Status
The controller can be in one of the following states
State
Controller
RUN
indicator
Lower display in
“Normal display
mode”
Program editing
Ready rdy
Controls at ITSP
OFF
SP, steady
Allowed
Run
Executes the program
ON
SP, steady
Not allowed,
read only
Wait*
Pauses the program
ON
Blink SP /
trAc
Recovery*
Ramps to dwell SP
ON
Blink SP /
rEC
Natural
Cool
Power OFF
ON
CooL
Hold
Pauses the program
Blink
Blink SP /
HoLd
The program status can b
e changed by “RUN” key only if device is in “Normal display
mode”.
*The wait and recovery states are not under the control of the operator.
The wait state is entered/exited automatically by the relationship between the SP and PV
values. The instrument will go into the recovery state, until setpoint is achieved, after a
power failure, during a dwell or after using hold
Program Review
While the program is running and the controller is in the basic operator mode the status of
the program can be observed by pressing the function key
From the home display, press
to cycle through each of the following parameters (for
details see section 4.1)
nPrG, SEG, rT S, rrPt, rPt, itSp, Sp. 1, rr. 1, TH. 1, SP 2, tH. 2, Sp. 3, rr. 3 , tH. 3 , Sp. 4 ,
rr. 4 , tH. 4, rPt, CEt
Note: Review of the program parameters while the program is in the run status, can only be
accessed sequentially using the function key