IDEC FS1A Controller - Manual (Page 192)

LOGIC
5-144
Logic 13A: The logic applicable for selection of active safety input devices
Overview (Logic 13A)
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 2 dual channel direct opening inputs, 1 mode select input, and 3
dual channel dependent inputs.
Auto mode Teach mode
Safety input 1
Safety input 6
Safety input 2
Safety input 3
Safety output 1
or
Safety output 2 Safety input 4
Safety input 5
System runs Logic 13A
Safety
output 1
Safety
output 2
Emergency
stop switch
(PNP type)
Safety switch
Enabling switch
Selector switch
Operation example (Logic 13A)
●Auto mode
Press!
Open!
Auto mode Teach mode
Safety input 1
Safety input 6
Safety input 2
Safety input 3
Safety output 1
or
Safety output 2
Safety input 4
Safety input 5
Inactive
System stops
●Teach mode
Press!
Position1!
Position3!
Auto mode Teach mode
Safety input 1
Safety input 6
Safety input 2
Safety input 3
Safety output 1
or
Safety output 2
Safety input 4
Safety input 5
System stops
Inactive
Inactive