Product Description; Features; Functions; Power-Up Sequence - Pepperl+Fuchs FYQLA1-140R-3 Instruction Manual

Door Interrupt System with FYQLA1-140R-3 Logic Amplifier

Product description

Features

The FYQLA1-140R-3 is a category 3 PL d( ISO 13849-1:2015) logic amplifier.
The basic features of the FYQLA1-140R-3 include inputs for up to six individual
two-channel switches for monitoring door access or guarded/monitored functions.
Both channels are monitored and cross checked for proper operational switch
states. The safety function monitors all switches, and they must have closed state
conditions on both channels to allow the safety relay output to be energized.
• Monitored inputs (6)
• N.O. output relay contact
• Internal relay monitoring
• Screw terminals
• LED input indicators
• LED fault indicator
• LED relay status indicators
• LED relay power indicator
Together with the 50FY41 series sensors and 52FY31 series actuators, the
FYQLA1-140R-3 can be used to protect one or more points of hazardous areas.

Functions

Power-up sequence

After power is applied to the system, an internal system check is performed
verifying the functional logic and connected switch conditions. If any errors are
detected at power-up, the safety output relays will remain in the de-energized
state. Time to complete this internal verification is approximately two to three
seconds.
Power-up state (output relay energized):
• All internal function checks were verified and all input switch states are in the
closed position
Power-up state safety function (output relay de-energized):
• All internal function checks were verified, but one or more input switch states
are in the open position
• One or more internal function checks fail
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