Interlock Menu; Feed Verification Input Menu - Walchem WebMaster ONE Instruction Manual

Primary Sensor Assignment (appears only if the Paddlewheel type is selected)
This menu only appears if the Redundant Sensor Setting is Backup.
Use the pulldown arrow to select the sensor to use as the primary control sensor. All sensors of the
same type as the backup sensor will appear in the pulldown list.
Deviation from Primary Sensor (appears only if the Paddlewheel type is selected)
This menu only appears if the Redundant Sensor Setting is Backup.
Type the maximum allowable difference between the two sensor readings. If this deviation is
exceeded, then control of any outputs using the sensor will stop and an alarm activated.
6.13

Interlock Menu

The Interlock feature allows you to use a contact closure to shut down certain control outputs. For
example, a dry contact from a DCS could be sent when the process is shutdown for maintenance,
or a flow switch could stop control based upon a stagnant sample.
Digital Inputs
Displays which digital input has been selected as an Interlock input in the digital input section of
the Start Up page.
Outputs Interlocked
Click on the check box to the left of the relays that you want to be deactivated when the dry
contact signal is received by the controller. Clicking once places a check in the box, clicking again
removes the check from the box.
Interlock when contact is
Click on the radio button that describes how your Interlock switch operates. If the contact is open
when you want the outputs to deactivate, click on "open". Otherwise, click on "closed".
Click on the "Submit" button to save the changes.
6.14

Feed Verification Input Menu

Digital Inputs
Displays which digital inputs have been defined as Feed Verification inputs in the start up page.
Output
Click on the arrow for the pull-down list to tell the controller that the Feed Verification device for
the digital input shown to left is attached to the relay that you selected.
Control-Output Status
This column lets you know if the control output for the pump to which the Feed Verification
device is attached is currently on or off.
Feed Verification Status
This column lets you know if the Feed Verification device is sensing flow from the pump or not.
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