IDEC FS1A Controller - Manual (Page 154)

LOGIC
5-106
Logic 12C: The logic constructing an OR circuit for apparatus with openings
Overview (Logic 12C)
This logic is for constructing an OR circuit of safety devices with dual channel solid state outputs,
such as safety light curtains, for safety protective measures of production machinery, robots. Safety
outputs perform as dual channel outputs.
This logic enables the connection of 4 dual channel direct opening inputs, and 2 dual channel safety
inputs.
Workspace
Safety input 1
Safety input 6
Safety input 2
Safety input 3 Safety output 1
or
Safety output 2
Safety input 4
Safety input 5
System runs
Emergency
stop switch
Safety switch
Limit switch
Safety light
curtain
(PNP type)
Logic 12C
Safety
output 1
Safety
output 2
Operation example (Logic 12C)
Beams
blocked!
Safety input 1
Safety input 6
Safety output 1
or
Safety output 2
Safety input 4
Safety input 2
Safety input 3
Safety input 5
System runs
Workspace
Safety input 1
Safety input 6
Safety output 1
or
Safety output 2 System runs
Safety input 3
Safety input 4
Workspace
Beams
blocked!
Safety input 2
Safety input 5
Safety input 1
Safety input 6
Safety output 1
or
Safety output 2
Safety input 3
Safety input 5
Safety input 2
Safety input 4
Beams
blocked!
Beams
blocked!
Workspace
System stops