SAMWONTECH
2nd Edition of TEMP2000M_Series IM : April. 8. 2014 Page 173 / 176
22.8 Sub channel PID group setting
▶
It is a screen to set the details for PID in each sub channel.
▶
It selects the sub channel PID group in [Fig. 22-2 Sub channel system parameter setting screen].
①
Proportional (P) area: It controls to the direction to reduce the deviation between the setting data (SP)
and indication value (PV).
☞
When the proportional integer is large, it approaches rapidly to the setting data (SP) and indication
value (PV), but it may make the bad influence on the control safety due to the vibration of control
output (MV).
☞
When the proportional integer is small, the indication value approaches to the setting data (SP) slowly
in stabilization, but there is a possibility to create the residual deviation.
②
Integration (I) time: The control output (MV) gets smaller when the integration time gets longer,
accordingly, the approaching time to the setting data (SP) gets longer. The control output (MV) gets
bigger when the integration time gets shorter, accordingly, the approaching time to the setting data
(SP) gets shorter.
☞
The integration operation can delete the residual deviation which can be taken place in PO operation.
☞
When the integration time is too short, there is a possibility to stay in incapability.
③
Differential (D) time: It inhibits the changes of deviation (PV-SP) by calculating the control output (MV)
corresponding to deviation (PV-SP) change rate.
☞
It has an effect of speedier approach to the setting data (SP) and inhibiting the abrupt change in
indication value (PV) or external disturbance.
④
Output upper limit·lower limit: It sets the upper limit·lower limit in control output operation range.
☞
When the output upper limit·lower limit is changed, it is applied to the control output (MV) in auto
tuning.
☞
When the type of control output is SSR, it is operated in 0%, 100% output regardless of the restricted
value set in the upper limit·lower limit.
⑤
Calibration data: When the integration time (I) is “0” during PID control, it sets the parameter to apply
the manually set data into the integration time item of PID calculation.
⑥
It selects the group of channel to be applied in case of parameter change.
☞
It changes only the parameters in currently selected channel.
☞
It changes every channel parameter simultaneously.
⑦
It moves to the corresponding channel in case of parameter setting.
①
②
③
④
[Fig. 22-20] Sub channel PID group setting screen-1
⑤
⑥
⑦
Summary of Contents for Temp 2000 M
Page 1: ...Instruction Manual...
