42
AW T4 20 |
U N I V ER S A L 4 - W I R E , D UA L- I N P U T T R A N SM I T T ER | O I/AW T4 2 0 - EN R E V. B
… 13
Configuration (Advanced access level)
…Input/Output
Menu
Comment
Default
Cleaning 1 (2) – Input/Output
Sensor To Clean
Set the sensor to be cleaned:
• Sensor 1/Sensor 2
Sensor 1
O/P Assignment
Set the assignment of the cleaner to an output:
• Not Assigned/Relay 1/Relay 2/Relay 3/Relay 4/Digital O/P
Not Assigned
Clean Interval
Set the interval between cleans:
• Off/15 mins/30 mins/45 mins/1 to 24 hours
Off
Clean Type
Set the clean type:
• Continuous/Pulsed.
Continuous
Clean On Time
Set the duration of the clean:
• 1 to 60 s
30 s
Clean Off Time
Set the duration between cleans:
• 1 to 60 s
Clean Type = Pulsed
30 s
Number Of Pulses
Set the number of pulses:
• 1 to 10 pulses
Clean Type = Pulsed
1 pulse
Recovery Time
Set the time delay between the completion of cleaning and the display of a new
reading on the operator page:
• 1 to 10 min
1 min
Clean Duration
Displays the total duration of the clean:
•
Clean Type
set to
Continuous
=
Clean on Time + Recovery Time
• Clean Type set to
Pulsed
= (
Clean on Time + Clean Off Time
) x
Number of Recovery Time
N/A
Next Clean
Set the date and time of the next scheduled clean.
N/A
Digital input/output polarity
Digital input (volt-free): polarity = non-inverted
Input status
Output state
Open
Inactive
Closed
Active
Digital input (volt-free): polarity = inverted
Input status
Output state
Open
Active
Closed
Inactive
Digital output (open collector): polarity = non-inverted
Source status
Output state
Logic voltage*
Active
On
0 V
Inactive
Off
3.3 V
Digital output (open collector): polarity = inverted
Source status
Output state
Logic voltage*
Active
Off
3.3 V
Inactive
On
0 V
* The measured voltage across digital I/O connections with no auxiliary
devices fitted
Table 5 Digital input/output polarity
Relay output polarity
Relay output: polarity = non-inverted
Source status
Relay state
N/C Contact
N/O Contact
Active
Energized
Open
Closed
Inactive
De-energized
Closed
Open
Relay output: polarity = inverted
Source status
Relay state
N/C Contact
N/O Contact
Active
De-energized
Closed
Open
Inactive
Energized
Open
Closed
Table 6 Relay output polarity
