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Document: LT0554
Vigilant BOWS Installation & Operation Manual
Issue 1.20
6 September 2012
Page 3-7
The BOWS power supply has an 8-way DIP switch to configure its
operation as shown in Table 9.
Table 9. BOWS Power Supply DIP Switch Settings
Switch
BOWS
Factory
Default
Function
1
OFF
12A select
– this must be set to
OFF
2
OFF
Switch
ON
to select NZ mode
-
Charger High, Charger Low, Mains Fail do not activate the general fault
output Self-timed battery tests every 24 hours after 72 hours with no
externally initiated tests. Battery Capacity fault indication is non-latching.
Switch
OFF
to select Standalone Australian mode
-
All fault conditions contribute to general fault output.
Self-timed battery tests occur every hour until failure then every half hour
until success. Battery Low capacity is latching until successful retest.
3
ON
Switch
ON
to enable self-
timed “Battery Disconnected” and “Battery Low
Capacity” tests.
4
OFF
Switch
ON
to enable earth fault detection. Only for current production versions
with firmware (SF0445) version V1.1 or later.
Switching this off will leave any other earth fault detection unaffected.
5
ON
Switch
ON
to enable temperature-compensated output voltage. Switching this
off means that a temperature probe is not required.
6
7
OFF
ON
Switch 6 ON and 7 OFF to make the Fault output pull up to near +24V for
Normal, switching low to near 0V on any fault. The Fault output is current
limited, good for at least 20mA, suitable for driving a fault relay if desired.
Switch 6 OFF and 7 ON to make the Fault output an open collector,
switching to below 1V on any fault.
8
OFF
Not currently used. Has no effect.
Power Supply