Instruction Manual
Microprocessor Temperature Regulator HT MC11
Page 19 of 22
9 Program Controller
9.1 Course of Program Control:
1. Define the number of steps with parameter cn t . S .
Each step consists of ramp time, ramp setpoint and dwell time. Periods can
be deactivated by setting value to 0.
2. Define behavior at end of ramp phase. Normally the controller waits for the
adjusted ramp time before dwell time starts. Setting: End . S to t i n E . If pa-
rameter E n d . S is set to t E n P , dwell time starts regardless the ramp time
of the actual value has reached the setpoint of the respective step.
3. Define behavior at end of program with parameter E n d . P : control opera-
tion using setpoint 1, control operation with last ramp setpoint or restart of
program.
4. Select values for ramp time, ramp setpoint and dwell time.
5. Working with the program controller:
Start program by pressing key . Display shows S t r t for a short time, ramp
LED flashes.
Pressing again key sets program on hold. Display shows h o L d for a short
time, ramp LED is on.
Resume program by pressing key again. Display shows r ES u , ramp LED
flashes.
Stop program by pressing key . Display shows S t o P , ramp LED is off.
Afterwards, program can be started for a new cycle by pressing key .
Course of ramp depends on ramp time, last setpoint and actual setpoint. When start-
ing the program, the first ramp starts from the actual process value.
If configured, the program can also be started and stopped by using the external
contact.
Following parameters are only visible if parameter Pr o G is “ on” .
c n t . S number of steps 1 … 6
E n d . S Behavior at end of a
ramp phase
ti n E
The dwell time starts after completing ramp time.
All steps will be processed according to adjusted
time schedule.
tE n P
Dwell time starts as soon as the process value has
reached the ramp setpoint (+/-2 K).
The adjusted ramp time defines the rate of the set-
point, but has no influence on the beginning of the
dwell time.
Version 1080/1.03 02/2018
471 11 400
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