IDEC FS1A Controller - Manual (Page 102)

LOGIC
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Logic 11d: Muting function logic for apparatus with openings
Overview (Logic 11d)
The logic is for using safety devices with dual channel solid state outputs, such as safety light
curtains, and for devices with output muting signals that enable muting functions that temporarily
suspend safety functions of safety devices for safety protective measures of robots and conveyor
lines.
Safety outputs perform as dual channel outputs.
This logic enables the connection of 2 dual channel direct opening inputs and 2 dual channel safety
inputs and 2 muting signal output (PNP) devices (Ex. Muting sensor, limit switch).
（※）
Hazardous Area
Work object
Safety light
curtain
（※）
System runs
Muting sensors
Muting lamp
Make sure that the
intersection of optical
axes is within the
hazardous areas.
（ PNP type）
(PNP type）
Safety light
curtain
Emergency
stop switch Logic 11d
Safety
output 1
Safety
output 2
Muting sensor
Muting lamp
Operation example (Logic 11d)
● Safety input is temporarily suspended
Safety light curtain beams blocked
Muting sensor beams blocked
Muting lamp
System runs
Safety light curtain beams blocked
Hazardous Area
● Safety light curtain beams blocked
System stops Safety light curtain beams blocked
Hazardous Area
Warning
When installing light curtains and muting sensors, ensure safety by referring to referring to IEC TS
62046 technical documents..