10
Innovative Circuit Technology Ltd.
Shutdown
Voltage drops below
10.5/21.0/42.0VDC
for
1 s
. Clears when Input
Voltage rises above
warning level for 1 s.
DC Overvoltage
Shutdown
Triggers when Input
Voltage rises above
16.5/33/66VDC
for
1 s.
Clears when Input
Voltage drops below
16.0/32/64VDC
for
1 s
.
OFF
ON
-
OFF
Over-
temperature
Shutdown
Triggers when internal
temperature is too
high. Clears when back
to normal range.
OFF
ON
-
OFF
AC Output Failure
Triggers when Inverter
output problem
detected. Must be
cleared manually by
toggling the Power
Switch.
OFF
ON
-
OFF
The form-C alarm contact will be triggered for any condition that lights the red
FAULT LED, or shuts down the output of the inverter.
AC Transfer Switch (Option “T”)
The automatic AC transfer switch ensures that your load is primarily powered
from the AC grid or generator when available, and is quickly transferred to the
battery powered inverter output should the AC power source fail. Transfer time
is typically less than 1 ac cycle, and the voltage transfer thresholds may be
adjusted using the back panel DIP switch settings shown in Table 1. (The output
will be supplied by the inverter when the external line voltage is less than the
Vac-Low setting, and will be transferred back the external AC source when the
voltage rises above the Vac-High setting) The factory default setting is shown in
bold type
. Threshold values for 115Vac (230Vac) models shown.
Vac-Low
Transfer
Vac-High
Transfer
Switch settings (1 = “on”, or down)
SW-1
SW-2
SW-3
SW-4
88 (190)
100 (206)
0
0
0
0
92 (197)
105 (215)
1
0
0
0
96 (205)
110 (224)
0
1
0
0
100 (214)
115 (233)
1
1
0
0
86 (188)
104 (212)
0
0
1
1
91 (197)
109 (222)
1
0
1
1
