10. SPECIFICATIONS
IMR02C15-E4
10-13
Action at mode transfer
Transfer AUTO/MAN mode from Manual to Auto:
Automatically activates the Bumpless function when Measured value (PV)
is within the Proportional band.
Bumpless function does not activate when Measured value (PV) is out of
the Proportional band.
Bumpless function for Heat/Cool PID with Autotuning (AT) takes
place as follows:
• When the Manual manipulated output value (MV) is positive
number, Bumpless action takes place at the heat-side output.
• When the Manual manipulated output value (MV) is negative
number, Bumpless action takes place at the cool-side output.
Transfer AUTO/MAN mode from Auto to Manual:
Set ON or OFF to Bumpless function
In case of “0: without bumpless”: Output the Manual manipulated value (MV)
In case of “1: with bumpless” Output the Manual manipulated value
(MV) set before the AUTO/MAN
transfer.
In Heat/Cool PID control with Autotuning (AT), Bumpless action is
as follows:
• When Heat-side output value is set to the Manipulated value (MV)
as positive output.
• When only cool-side output is output, Bumpless takes place at the
negative output.
• When the output value is 0 % or less at both heat-side and
cool-side, Manipulated value (MV) is also 0 % or less.
Transfer RUN/STOP mode from Stop to Run:
Same action as when the power is turned on.
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