ZENITH 140 INSTRUCTION MANUAL
108
Digital Input
The following parameters are used to configure the use of the digital inputs.
P333, 336, 339, 342, 345, 363 Type
Determines the way digital inputs will be recognised by the Zenith.
1 = Input N.C.
(Default Input 1 to 6)
Zenith recognises a closed condition, D.C. signal
voltage present at the input, as a healthy/run
condition.
Zenith recognises an open condition, D.C. signal
voltage not present at the input, as a healthy/run
condition.
P335, 338, 341, 344, 365 Forced Level
This parameter will set the function of the digital Input.
Input is not used for Float Switch Backup
Float Swich is set at low level to turn pumps off.
Float Switch is set at a high level to turn pumps on.
P335, 338, 341, 344, 365 Forced Level
This parameter is used to enter the value, in measurement units (P104)
where in the event of a Backup condition ‘Forced Level’ will determine the
level that the unit will assume is present and switch on the pumps in
accordance with their setpoints.
Enter a value in measurement units (P104): Min 0.1 (Default), Max = 9999
Important Notice
When programming the unit and you use a digital input that has already
been assigned, a message will appear on the display ‘Change use’.
Pressing Enter will overwrite what the input has already been
programmed to do or pressing Cancel won’t and will allow you to use a
different input for this feature.
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