Dragon Group China Bird AC-5K, Manual

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中龙集团
Dragon Group China Limited
BIRD
®
www.dragongroupchina.com
www.chinaemall.biz
differential time (I), and integration time (D) parameters. For traditional PID meters, the
identification of these parameters mentioned above is operated by experienced process
control experts. Otherwise, it's likely that the entire system is out of control for the
mismatch of the parameters which bring trouble to most users. To this series of
meter,after starting the function, can simulate experts to conduct a search then make the
whole set the best parameters automatically according to control object, then get to the
best controlling effect.
(2). Usage of PID
①
Press SET, come to the second set area, then get into the "PID set conditions"
according to operational processes, set "AT" at "01". Then press "SET" button for 5
seconds, the meter will exit from set condition. At that time, AT indicator light blinks. At
the vicinity of setting point or after three periods of PID control (setting time varies
according to different objects), PID is over. "AT" go out, P.I.D parameters which have
been set before will be kept in the meter automatically.
②
If we need to examine P.I.D parameters after setting, we can do it in the second setting
area.
③
In the process of PID, keeping the continuity of power is necessary. We should
minimize interference, otherwise, restart PID.
④
There may be some differences between two parameters of PID starting in the process
of warming and starting on control point. Generally, we choose the latter.
⑤
On some great interference occasion, repeatedly setting may be used to exam the
rationality of parameters. Then we can define, choose and revise.
Notes:
①
In a state of setting, PV window shows setting character; SV window shows current
settings.
②
If we want to get into the second setting area from normal control state, press SET
button for more than 5 seconds.
③
If we want to get out of the second setting area to normal control state, there are two
ways to choose: First, press SET button for 5 second or more; second, press any
functional button of the meter at least 30 seconds. There are a little bit differences
between these two ways: the parameters you set or corrected with the first method is
inefficient in the second setting area.
④
In the second setting state, when AT=1, press SET button 5 seconds or more, the
system will get out of the second state and get into PID state automatically. At that time,
AT is on.
⑤
In a working state of PID, press SAT button, the system will get into setting state form
PID state. If you want to return to PID state, set AT to 1 again, then press SET button 5
seconds.
⑥
To protect the parameters from being revised, you can set the value of LOK to 01 or 02,
then get out.