Relay (1 - 8) Output Menus - Feed As % Of Time Types - Walchem WebMaster ONE Instruction Manual

Type of Event
Relay output
Interlock DI
Level Switch DI
Generic DI –
Alarm selected
Generic DI – No
Alarm selected
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6.28 Relay (1 – 8) Output Menus – Feed as % of Time Types
This page is used to program to activate one relay for a percentage of a user-specified time period.
You may also change the Relay Control Mode here. If you do, you will have to reselect the Input
Assignment as well.
This section assumes that the Relay Control Mode is set to Feed as % of Time. Other control mode
types are described in other sections of the manual.
Relay Control Mode
Click on the arrow of the pull down menu and select the way that you want to control the relay.
See Section 6.2 for details on each control mode.
Status
This displays the current status of the relay output, either "Off" or "On", and if on, the amount of
time it has been on. Possible status messages are Off, Off/Manual, On/Time counting down and
On/Time counting down/Hand (for manual activation). The only possible error message is
Interlock. See section 8.1 for a complete description of error messages.
Custom Name
This menu allows you to call the output another name if desired. Type the new name in the text
box.
Time Period
Type in the desired time period, between 1 and 1440 minutes. The relay will activate at the
beginning of the time period, for the percentage of it specified below.
% of Period to Feed
Use this menu to type in the percentage of the time period that this relay will be active.
Status to generate a '1' in the log
Relay activated
In the Interlock state as defined in
the Interlock page
In the Low Alarm state as defined
in the Level Switches page
In the Alarm state as defined in the
Generic Inputs page
Switch closed
Status to generate a '0' in the log
Relay not activated
In the non-Interlock state as defined in
the Interlock page
In the Normal state as defined in the
Level Switches page
In the Normal state as defined in the
Generic Inputs page
Switch open
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