Nagano Keiki CE40 Instruction Manual page 10

① Example of NPN open collector usage 1 (Voltage output)
② Example of NPN open collector usage 2 (Wiring to photo coupler)
③ Example of NPN open collector usage 3 (Wiring to relay)
Pull up resistor
(NPN open
collector)
200mA max.
Current-limiting resistor
(NPN open
collector)
200mA max.
Photo coupler
(NPN open
collector)
200mA max.
Relay
Transistor protective diode is
always necessary for the relay
Note : Rated current and voltage for the relay coil
must be within the rating for the transistor.
TY-CE40-004A
Power (+)
Voltage H/L output
(High/Low)
Power (-)
Power (+)
Open collector output
Power (-)
Power (+)
Relay output
Power (-)
9/14
Rev.3