IDEC FS1A Controller - Manual (Page 282)

LOGIC
5-234
Logic 14C: Partial stop logic applicable for selection of active safety input
devices
Overview (Logic 14C)
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 3 dual channel direct opening inputs, 1 mode select input, and 1
dual channel dependent input.
Safety output for teach mode is ON
Safety
output 3
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
System runs
System
stops
Safey output
for teach
mode
Emergency
stop switch
Safety switch
Enabling switch
Selector switch
Safety
output 1
Safety
output 2-1
Safety
output 2-2
Safety
output 3
Logic 14C
Operation example (Logic 14C)
●Auto mode
Safety
output 3
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
System runs System
runs
Inactive
Safety output for teach mode is OFF
Open!
Open!
Safety
output 3
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
System stops
System
stops
Inactive
Safety output for teach mode is OFF
●Teach mode
Position1!
Position3!
Safety output for teach mode is OFF
Safety
output 3
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
System
stops
System stops
Inactive
Inactive
Press!