IDEC FS1A Controller - Manual (Page 180)

LOGIC
5-132
Logic 103: Partial stop logic applicable for selection of active safety input
devices
Overview (Logic 103)
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 outputs.
This logic enables the connection of 1 dual channel direct opening input, 1 mode select input, 3 dual
channel dependent inputs, and 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
Safety
output 1
Safety
output 2
Emergency
stop switch
Safety switch
Enabling switch
Selector switch
Logic 103
Safety light
curtain
(PNP type)
Operation example (Logic 103)
●Auto mode
Open!
Safety input 2
Safety input 6
Auto mode Teach mode
Safety input 1
Safety input 5
Inactive
System stops
Safety output 2
System runs
Safety output 1
Safety input 4
Safety input 3
Beams
blocked!
Inactive
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
System stops
Safety output 1
Press!
●Teach mode
Position 2!
Position1!
Position3!
Safety output 2
System runs
Safety input 5
Safety input 6
Safety input 2
Safety input 3
Safety input 4
Safety output 1
System stops
Auto mode Teach mode
Safety input 1
Inactive
Position 2!
Position 2!
Inactive
Safety output 2
System stops
Beams
blocked!
System stops
Safety output 1
Safety input 4
Safety input 3
Safety input 2
Safety input 6
Safety input 5
Auto mode Teach mode
Safety input 1
Press!