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Version 1.3 11/12/11
42
C o r p o r a t io n
Reset
The reset input allows remote resetting of
SWO after a shutdown fault. If
SWO has shutdown due to a fault - for
any reason - closing the reset contact will reset all current faults and restart the system.
No Flow
An input can be set up to monitor a flow switch. If
the system detects that there is a No Flow signal
from an external flow switch and there are pumps
running, then the SWO will display the
message "Low Flow Detected". If this input
remains on for the period of the No flow delay timer
then the SWO shut down all pumps.
This is optional and requires a flow switch to feedback into the No Flow Input and will only
operate if there is at least 1 pump selected to
AUTO.
Once the No Flow Delay Timer has expired then
the screen message changes to:
Aux Inputs 1- 3
.
Any input can be set to be an auxiliary input.
Setting an input to become an auxiliary input allows
the SWO to use this input to turn on a
Digital Output. To do this the output has to be set up to be an Auxiliary output. There are
three auxiliary functions available.
Aux Input 1 operates Aux Output 1
Aux Input 2 operates Aux Output 2
Aux Input 3 operates Aux Output 3
Pump 1-6 No Flow Protection
SWO has inputs for each pump to
allow for individual pump no flow protection. In the
event of a individual pump loosing prime or flow for some reason, the No Flow Protection
input for that pump should close. This will shut down the pump after the time set by the
No Flow Protection Delay Timer.
The pump will permanently disabled until reset by the operator or remotely via the reset
input.
This protection is ideal for the following pump protection sensors.
•
Temperature probes
•
Individual Loss of prime pressure switches
•
Any individual pump protection device.
External contacts must be VOLTAGE FREE - any applied voltage can cause
damage to the system.
Low Flow Detected
XXXXX
No Flow Shutdown
XXXXX
Program Input XX
Reset
Program Input XX
No Flow
Program Input XX
Aux Input X
Program Input XX
PumpX No FlowProt
