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スイッチ Siemens SITRANS L Pointek ULS200のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Siemens SITRANS L Pointek ULS200 47 ページ。 Ultrasonic non-contacting switch

6.5

Dual pump control

This application uses the device to provide a control output when the process material rises

to a high level.

Typically, wet wells are used to temporarily hold storm and/or waste water. When the water

surface reaches a high level setpoint, the wet well is pumped down. The process material

will be pumped down by the deadband value to another setpoint where the control will turn

off.

Relay function 13: dual pump down

①

②

③

④

⑤

⑥

⑦

⑧

⑨

Application adjustments

Relay function

Relay setpoints

Deadband values

4 m

Relay 1 (e.g. 1 m)

Relay 2 (e.g. 0.75 m)

Blanking (e.g. 0.5 m)

Pump 2 start

Pump 1 start

Both pumps stop

Deadband 2 (e.g. 3.25 m)

Deadband 1 (e.g. 3 m)

6 - high control/low alarm

•

7 - high control/high alarm

•

10 - high control/LOE alarm

•

13 - high control/high control

•

Set to desired values.

Referenced from relay setpoints (distance from

Pump Start setpoint to Pump Stop setpoint).

Operating Instructions, 01/2019, A5E32268616-AB

Pointek ULS200