. . . . .
OMRON SCIENTIFIC TECHNOLOGIES INC.
Fremont CA USA
Tel: 1/888/510-4357 in USA and Canada
© OSTI 1209 PN99584-0050 Rev. E
Original Instructions
37
10 C
ONNECTING
T
O
T
HE
M
ACHINE
C
ONTROL
C
IRCUIT
10
10.1 D
IN
C
ONTROLLER
▲
!
WARNING!
This product is designed for use on a 24 VDC, negative ground (protective earth) electrical system
only. Never connect the 4700 to a positive ground (protective earth) system. With a positive ground (protective
earth) wiring scheme, certain simultaneous shorts of both safety outputs may not be detected and the guarded
machine may not stop resulting is severe operator injury.
▲
!
WARNING!
Never use only a single safety output to control the machine. Should this single output fail, the
machine may not stop, resulting in severe operator injury. The machine must be connected using both safety
outputs.