IDEC SG4 Type 4 Finger & Hand - Manual (Page 34)

SG4-B Series Instruction Manual
30
 Connect both OSSDs to the activating device. Failure to connect an
OSSD to the activating device jeopardises the system safety
degree that the light curtain has to control.
Fig. 17 Fig. 18
Fig. 19 Fig. 20
115 usec
500 msec
1000 msec
OSSD during “safe” behaviour
OSSD2
OSSD1
24Vdc
GND
24Vdc
GND
YES
NO
NO
NO
OSSD test behaviour
during normal operation