User Guide
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11.2.5
I/O signal connector (P1): signal descriptions
Pins 1 (-) and 9 (+): Lamp on output
This signal advises the user of the lamp status. When the lamp is ON the
signal is active. When the lamp is OFF, the signal is inactive.
Pins 2 (-) and 10 (+): Shutter verification output
The shutter verification output signal remains inactive during successful shutter
activations. The signal is active only when if a shutter activation failure is
detected. This signal is also dependant on the state of the "Shutter verification
mode” input signal.
Pin 3 (-) and 11 (+): Exposure fault output
This signal is inactive during successful exposures and active only when the
intensity deviates by more than +/- 10% from the current intensity setting.
Pin 4: Common/return for inputs
The isolated common/return signal is the reference point for all digital inputs.
Pin 5: Shutter activation (start/stop) input
This is a contact closure type signal with dual feature input. The shutter
activation input triggers the shutter. The functionality of this signal duplicates
the front panel start/stop button. When the PLC Shutter signal mode in GUI
system administration is selected to Pulsed Mode(default), a momentary closed
contact activates the internal timer. When the PLC Shutter signal mode is
selected to Level Mode, continuous closed contact provides external timing as
the iris remains open for the duration of the contact closure.
Pin 6: Shutter interlock input
The shutter interlock input is a closed contact type signal. Activating this signal
by closing the contact will prevent the shutter from opening. Leaving this signal
open will result in normal unit operation.
Pin 7: Intensity increase input
The intensity increase input is a contact closure type signal that allows the user
to remotely increase the output intensity of the unit. A closed contact signal will
increase the intensity by 1 increment once the intensity lock/ unlock mode
contact is closed.
Pin 8: Intensity decrease input
The intensity adjust down input is a contact closure type signal that allows the
user to remotely decrease the output intensity of the unit. A closed signal will
reduce the uni
t’s output intensity by 1 increment once the intensity lock/ unlock
mode contact is closed.
