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PROGRAMMING GUIDE
SINUS PENTA
185/486
25. PID2
PARAMETERS
MENU
25.1.
Overview
This menu defines the parameters of the digital regulator PID2 as well as the parameters used in 2-zone mode.
To activate the PID2 regulator, set
C291a = 7: 2 PID
Once activated, the PID2 regulator has the same functionality and operates in line with the standard PID (PID
PARAMETERS MENU). The output of the standard PID regulator is algebraically summed with the output of the PID2
regulator.
Add “200” to the parameter codes pertaining to the standard PID to obtain the relevant parameter codes for PID2.
Example:
P236
for standard PID corresponds to
P436
for PID2.
To enable the 2-zone mode, set
C291a = 5: 2-Zone MIN
or
6: 2-Zone MAX
Once the 2-zone mode is enabled, the standard PID regulator operates on the system with the larger error (minimum
feedback in respect to its reference,
2-Zone MIN
) or with the smaller error (maximum feedback in respect to its
reference,
2-Zone MAX
).
In 2-zone mode, parameters
P236
..
P260
pertain to the system where the error results from the reference selected with
C285
and from the feedback selected with
C288
, whilst parameters
P436
..
P460
pertain to the system where the error
results from the reference selected with
C286
and from the feedback selected with
C289.
NOTE
The PID2 regulator is disabled when operating in 2-zone mode.
Please refer to the block diagram in Figure 69.