YOKOGAWA UT350, Instruction Manual

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<Toc> <6. Function Block Diagram and Descriptions>
IM 05D01D02-41E 1st Edition : May 31,2000-00
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Target Setpoint and PID
It is possible to use a maximum of four groups of target setpoints and PID parameters. The
target setpoint can be selected by key operation or contact input. For selection by contact
input, refer to “Contact Input.”
Operating Parameters
Function Parameter
Target setpoint number selection SP.NO
Target setpoints 1 to 4 n.SP
Proportional band (P) n.P
OP.PA
OP.PA
OP.PA
Integral time (I) n.I
Derivative time (D) n.D
OP.PA
OP.PA
Menu
Note: Parameters n.SP, n.P, n.I, n.D (n=1 to 4) correspond to the target setpoint number selected in the target setpoint
number selection (SP.NO).
The target setpoint ramp rate setting function prevents the target setpoint form changing
suddenly. It is possible to set the upward and downward changing rate (i.e., ramp rate)
independently in the parameters UPR and DNR. The unit of the ramp rate (hour, or minute)
is specified in TMU.
Setup Parameters
Function Parameter
Ramp-rate time unit setting TMU FUNC
Menu
Operating Parameters
Function Parameter
Target setpoint ramp-rate setting UPR, DNR OP.PA
Menu