IDEC FS1A Controller - Manual (Page 232)

LOGIC
5-184
Logic 13d: The logic applicable for selection of active safety input devices
Overview (Logic 13d)
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).
Furthermore, the mode can be selected as “TEACH 1” and “TEACH 2” in Teach mode
(maintenance mode). Safety outputs perform as dual channel outputs.
This logic enables the connection of 1 dual channel direct opening inputs, 2 mode select inputs, 2
dual channel dependent inputs, 1 dual channel safety input.
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
TEACH 1 Logic 13d
Safety light
curtain
Emergency
stop switch
Enabling switch
Selector switch
(PNP type)
Safety
output 1
Safety
output 2
Operation example (Logic 13d)
●Auto mode
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
TEACH 1 TEACH 2
Inactive
Inactive
Beams
blocked!
System stops
Press!
●Teach mode (TEACH 2 (X1) is selected)
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
TEACH 1 TEACH 2
Inactive
Inactive
System stops
Note. When safety input 1 is TEACH 1,
safety input 3 is active and safety
input 4 is inactive in Teach mode.