Chemtrac HydroAct HA4, User Manual

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66 Chapter 4. Controls
Name Enter the device name used to identify the control on the menu tiles, alarm messages etc. The
name can be up to 25 characters.
Display Setting used to determine if device tile is shown on default main menu screen. Options are
“Show’‘or “Hide”
Enabled Select whether to enable or disable the control device.
Process Signal Select whether to use a signal input to control the device process run/stop state.
Controls in process stop are inhibited or paused. Options are “Disabled” or choice from a list of
signal inputs.
Start Delay If a control is enabled and not in a process stop state, it can be in one of three states;
started, running or fail. If a start delay is set, when a control is enabled or comes out of a process
stop, it enters the mode specified by the start mode below. After the start delay has elapsed the
control will automatically move into the run mode. The time specified is in HH:MM:SS.
Start Mode Select the start mode if a start delay is specified. Options are “Off”, “Manual” or “Auto-
matic”.
Run Mode Select the run mode. Options are "Off", "Manual" or "Automatic".
Fail Mode If an error occurs the control will enter an alarm state and switch to the mode selected here.
Options are “Off” or “Manual”.
4.1.2.2 Process Variable
This variable is configured via the user interface of the HydroAct 4. To access the configuration go to:
Options
→
Setup
→
Process Variable
Options to select the control process variable are:
Sensor
Select from a list of sensors.
Parameter
Select from a list of parameters.