IDEC FS1A Controller - Manual (Page 294)

LOGIC
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Logic 14d: Partial stop logic applicable for selection of active safety input
devices for apparatus with openings
Overview (Logic 14d)
For production machines, robots, and the like, a hazard is generally isolated by a protective door
(guard), however, when performing teaching or maintenance, the machine is operated in the
condition that a person is in the danger zone. For such a situation, this logic described is applicable
to the mode selection between Teach mode (maintenance mode) and Auto mode (operating mode).
Safety outputs perform as single channel outputs.
This logic enables the connection of 2 dual channel direct opening inputs, 1 mode select input, 1
dual channel dependent input, and 1 dual channel safety input.
Auto mode Teach mode
Safety input 1
Safety input 2
Safety input 3
Safety output 1
Safety input 4
Safety input 5
Safety output 2
Safety output 3
System runs
System stops
System runs
C
Logic 14d
Emergency
stop switch
Safety switch
Enabling switch
Selector switch
Safety light
curtain
(PNP type)
Safety
output 1
Safety
output 2
Safety
output 3-2
Safety
output 3-1
Operation example (Logic 14d)
●Auto mode
Auto mode Teach mode
Safety input 1
Safety input 2
Safety input 3
Safety output 1
Safety input 4
Safety input 5
Safety output 2
Safety output 3
System stops
System runs
System runs
Inactive
Beams
blocked!
Open!
Auto mode Teach mode
Safety input 1
Safety input 2
Safety input 3
Safety output 1
Safety input 4
Safety input 5
Safety output 2
Safety output 3
System stops
System stops
System stops
Inactive Press!
●Teach mode
Position1!
Position3!
Auto mode Teach mode
Safety input 1
Safety input 2
Safety input 3
Safety output 1
Safety input 4
Safety input 5
Safety output 2
Safety output 3
System stops
System stops
System stops
Inactive
Press!