IDEC FS1A Controller - Manual (Page 218)

LOGIC
5-170
Logic 13C: Partial stop logic applicable for selection of active safety input
devices
Overview (Logic 13C)
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 dual channel safety outputs.
This logic enables the connection of 3 dual channel direct opening inputs, 1 mode select input, 1
dual channel dependent input, 1 dual channel safety input.
Auto mode Teach mode
Safety input 1
Safety input 6
Safety input 2
Safety input 3
Safety output 1
Safety input 4
Safety input 5
Safety output 2
System runs
System runs
(PNP type)
Logic 13C
Safety light
curtain
Emergency
stop switch
Safety switch
Enabling switch
Selector switch Safety
output 1
Safety
output 2
Operation example (Logic 13C)
●Auto mode
Auto mode Teach mode
Safety input 1
Safety input 6
Safety input 2
Safety input 3
Safety input 4
Safety input 5
Safety output 2
System stops
Safety output 1
System runs
Inactive
Beams
blocked!
Open!
Press!
Auto mode Teach mode
Safety input 1
Safety input 6
Safety input 2
Safety input 3
Safety input 4
Safety input 5
Safety output 2
System stops
Safety output 1
System stops
Inactive
●Teach mode
Position 2!
Auto mode Teach mode
Safety input 1
Safety input 6
Safety input 2
Safety input 3
Safety input 4
Safety input 5
Safety output 2
System stops
Safety output 1
System runs
Beams
blocked!
Inactive
Inactive
Press!
Position1!
Position3!
Auto mode Teach mode
Safety input 1
Safety input 6
Safety input 2
Safety input 3
Safety input 4
Safety input 5
Safety output 2
Safety output 1
System stops
System stops
Inactive
Inactive