Pilz PSEN sg2c-3 Series, Operating Manual, Page: 43 / 79

Operation
Operating Manual PSEN sg2c
1003267­EN­02
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Legend:
LED on
LED flashes
LED off
9.2 Normal mode and Unlock mode
The device is in Normal mode when delivered.
Normal mode
In this mode the guard locking element is only disengaged from the bolt tongue when the
pushbutton 2 for access request is pressed.
Unlock mode
In this mode the guard locking element is disengaged from the bolt tongue as soon as there
is a High signal at the terminals X1­6 or X2­6.
Switching between Normal mode and Unlock mode
} Switch off supply voltage
}
Press and hold the pushbutton 2 for access request and the pushbutton 1 for activating
the guard locking simultaneously
}
Switch on the supply voltage and hold both pushbuttons until "Device" LED lights up
blue. Then release the pushbuttons.
} The active mode is signalled by quick flashing of one of the LEDs:
– Normal mode: LED of pushbutton 1 for activating the guard locking and LED
"Safety Gate" are flashing
– Unlock mode: "Input" LED flashes
}
Press one of the pushbuttons to change to the new mode
Reset function
After an error that was signalled by the red LED "Device" the device can be restarted by a
reset:
}
Rectify the error.
}
Press the pushbutton for access request [2] and hold the pushbutton for at least 5
seconds.