Nevion WOS-2 - Manual (Page 11)

WOS-2 Rev. H
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Max output current: 100mA
Max output voltage: 30V
WOS-2x1/WOS-2x2 GPI pinning:
Signal Name Pin # Input/Output Mode
Status General error status for the module Pin 1 Output Open Collector
Standby Alarm when switch in standby mode Pin 2 Output Open Collector
Switch to standby mode Pin 5 Input 0V= standby
5V= main
Reset switch to main position Pin 6 Input
Reset switch to main position Pin 7 Input
Ground 0 volt pin Pin 8 0V
The switch is set in standby mode by sinking pin5 to ground. Pin6 and pin7 are hardwired as
logical OR and when either is sunk to ground, they will reset the latching switch to main
position. Resetting can also be done with GYDA system controller
Figure 10: GPI Outlet
5.1.3 Front Panel – Status Monitoring
The status of the module can be easily monitored visually by the LEDs at the front of the
module. The LEDs are visible through the front panel as shown in Figure 9
Figure 11: Diode overview of WOS-2x1(L)/WOS-2x2(L)
Both WOS-2x1(L) and WOS-2x2(L) have 2 LEDs each showing a status corresponding to
the GPI outputs.
Diode \ state Red LED Green LED No light
Status Module is faulty
Module is OK
Module power is OK Module has no power
Main/standby Switch in standby position Switch in main position