Omron CRT1 - 10-2008 Operation Manual page 182

Units with Screw Terminal Blocks
Wiring
CRT1-OD08TA/
CRT1-OD08TAH (NPN)
CRT1-OD08TA-1/
CRT1-OD08TAH-1 (PNP)
Note
NC 0 1 7
V V V V
G G G G
Solenoid, Solenoid,
valve, etc. valve, etc.
0 1
NC 7
V V V V
G G G G
Solenoid, Solenoid,
valve, etc. valve, etc.
(1) When using an inductive load, such as a solenoid valve, either use a built-
in diode to absorb the counterelectromotive force or install an external di-
ode.
(2) Use a maximum current of 500 mA for each V and G terminal accept for
the I/O power supply terminals.
(3) Do not wire NC terminals.
Section 5-3
159