Multi Loop Controller
34
3.3.2 Control section
3.3.2 Heating, heating/cooling control (HC)
● Run setting (R/S) and run setting state saving (R/S_S)
If “1(ON)” is set to run setting (R/S), it becomes “run start (RUN)” state, and all channels with
channel mode set to “run mode” start control runs, and if “0(OFF)” is set to run setting (R/S),
it becomes “run stop (STOP)” state, and all channels terminate control run. Also, as run setting
save option can be set at R/S_S parameter, when power is first supplied, this run setting state can
be maintained or set as “run stop (STOP)” state.
● Channel mode (CHMD)
Channel mode consists of 3 types including “stop mode”, “monitor mode”,
and “run mode” and different setting for each channel is possible.
●
Setting are completed at channel mode (CHMD) parameter, run status at each channel mode
is as follows.
※ Run mode, if in run stop status, it functions similarly as the monitor mode.
This status is called READY state.
Channel mode
When run setting
(R/S) is run start (RUN)
When run setting (R/S) is run stop
Stop mode Control run (X), Even occurrence (X) Control run (X), Even occurrence (X)
Monitor mode Control run (X), Even occurrence (O) Control run (X), Even occurrence (O)
Run mode Control run (O), Even occurrence (O) Control run (X), Even occurrence (O)
Control method can be set at heating control or heating/cooling control. If heating/cooling control
is set, control output is divided into 2 signals, one for heating and one for cooling. For control
method, heating and cooling can be set as PID control or ON/OFF control respectively for output.
If heating side proportional band (PB) is set to “0oC”, heating side is controlled as ON/OFF control
output, and if cooling side proportional band (PBC) is set to “0oC”, cooling side is controlled as
ON/OFF control output,
● Direction (DR)
This parameter is to set control run of each channel, and can be set at forward run or reverse
run. When using as heating /cooling control by setting H/C parameter to “1”, control run (DR)
setting is disregarded
Control run Process value (PV) Manipulated Value (MV)
Reverse run
(Heating control)
Increase Decrease
Decrease Increase
Forward run
(Cooling control)
Increase Increase
Decrease Decrease
To Next Page
Loading...
