22
Chapter1 Ratings
F3SJ-A
User’s Manual
Overview and Specifications
For series connections, use the calculations below.
When 2 sets are series-connected:
•Response time (ON to OFF) :Response time of primary sensor + Response time of secondary sensor
1 -1 (ms)
•Response time (OFF to ON) :Response time (ON to OFF) x 4 (ms)
When 3 sets are series-connected:
•Response time (ON to OFF) :Response time of primary sensor + Response time of secondary sensor
2 + Response time of 3rd unit - 5 (ms)
•Response time (OFF to ON) :Response time (ON to OFF) x 5 (ms)
When 4 sets are series-connected:
•Response time (ON to OFF) :Response time of primary sensor + Response time of secondary sensor
1 + Response time of secondary sensor 2+ Response time of secondary sensor 3 - 8 (ms)
•Response time (OFF to ON) :Response time (ON to OFF) x 5 (ms)
Designation of F3SJ in series connection: p.120
Power Cable Length
Extension of power cable must be the length shown below or shorter:
Extension of the cable must be within a specified length. If it isn't, safety function may not
work properly, resulting in danger.
Condition Single 2 connected 3 connected 4 connected
Incandescent display lamps are
used by auxiliary output and/or
external indicator output
45m 40m 30m 20m
Incandescent display lamps are
not used
100m 60m 45m 30m