Yokogawa DAQWORX Manual de usuario descargar pdf (Pagina 277)

8-20

IM WX104-01E

• PID Parameters

Specify the PID parameters for each loop.

Target setpoint

Specify the target setpoint in EU (0.0 to 100.0%).

Set between the target setpoint’s upper and lower limits.

Alarm value (1 to 4)

Set the alarm value. (The setting depends on the type of alarm.)

PV and SP alarms EU (0 to 100%)

Deviation-High and Deviation-Low alarms EUS (–100 to 100%)

Deviation alarms EUS (0 to 100%)

Output alarms –5.0 to 105.0%

Proportional band (P)

Specify between 0.1 and 999.9%.

Integral Time(I)

Specify between 0 and 6000s.

Derivative Time(D)

Specify between 0 and 6000s.

Lower Limit

Set the output lower limit between –5.0 and 105.0%.

Upper Limit

Set the output upper limit between –5.0 and 105.0%.

Shutdown

Turn the shutdown function ON or OFF.

Manual Reset

Set the manual reset between –5.0 and 105.0%.

Relay Hysteresis (Value)

Set the relay hysteresis in EU (0.0 to 100.0%).

Relay Hysteresis (Point)

Select the Hysteresis operating point when using ON/OFF control from [Mid], [Lower

Limit], or [Upper Limit].

Preset Out

Select from -5.0 to 105.0% to be used when operation is stopped.

Reverse/Direct

Select reverse/direct switching from [Direct] or [Reverse].

Note

[Relay Hysteresis (Value)] and [Relay Hysteresis (Point)] appear in PID Parameters when

[Control Output] is set to [On/Off-control] on the [Internal Loop] tab of the [Setup] tab. In that

case, [PID], [Output Limit], [Shutdown], and [Manual Reset] are not shown.

8.4 Control Function General Settings

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Yokogawa DAQWORX Manual de usuario Pagina 277