10
Door Interrupt System with FYQLA1-140R-3 Logic Amplier
System inputs
The six device inputs allow the user to monitor up to six functional switch devices.
Each device must have two channels of output, one sourcing output and one
sinking output. These outputs must operate in tandem for a valid switch function
to be recognized by the FYQLA1-140R-3. If the output channels of the switches are
not functioning in a synchronized manner the amplier will not accept the switch
closure as a valid. The allowable timing between closure of switch channel A and
channel B is approximately one second. If any given pair of switch channels does
not transition to the proper state in the minimum time, then the monitor will issue a
fault on that switch channel and prevent the output from closing.
Reset faulted state
If an invalid door switch sequence is detected by the Channel A and Channel B
synchronization, the output safety relays will open and red fault LED will blink.
Reset is accomplished by a power down/power up sequence.
Output relays to de-energize equipment
When an invalid input condition is recognized by the door interrupt
system, the output safety relay will be de-energized. This will cause the
relay contact pair to open. Be sure to verify the contact power ratings
when applying these relay outputs to energize/de-energize associated
equipment.
Hardware
Inputs
• Six switch inputs compatible with dual channel devices
▸ Pepperl+Fuchs’ 50FY41 series magnetic sensors
Attention
Actuator Switch
Channel A
Channel B
Monitor input
Channel A
Channel B
Minimum time
between transitions
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