Clorius Controls ER 2022S - Page 38

Compact controller ER 2022S and ER 2022SA
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8. Configuration
8. 3 Generator ”Pro”
Hot-channel
controller
The warm-up ramp for hot-channel equipment is used, for example, for the gentle
operation of ceramic heater elements. Damage can be avoided by allowing moisture to
evaporate slowly from the hygroscopic heater elements during the warm-up phase (t
0
—
t
2
).
The present setpoint is accepted as the start value for the ramp at time t
0
. Within the
time period t
0
— t
1
, the programmed ramp slope rASL is used to approach the
hold set point SPP2. Within this period, the ramp setpoint is increased linearly. This
is followed by the programmable dwell time tP2 (t
1
— t
2
), after which the process is
controlled to the present setpoint (factory setting: setpoint 1 (SP1)).
The hot-channel function, with the settings for the ramp function and the program, is
implemented through the setup program.
Relevant settings:
Setup/Generator/General
- Ramp slope rASL with time unit
- Tolerance band (optional)
Setup/Generator/Program
- Configure program start to “Start at process value”
- Define response after power-on; the warm-up ramp either starts
automatically
when switching on the supply voltage, or by pressing the
I key.
Setup/Parameter level/Controller parameters
- Output limiting for parameter sets 1 and 2 (optional)
Setup/Program editor/Program
- Set parameter set 2 for segment 1 (segment setpoint and time are not taken
into account)
- Configure segment 2 with segment setpoint (= hold setpoint SPP2), segment
time (= dwell time tP2) and parameter set 2
Setup/Display - Operation/ User data
Relevant parameters can optionally be placed in the user data (operator level)