GRAPHTEC miid LOGGER GL860 User Manual page 39

Internal equivalent circuit of I/O circuit
Alarm output
Maximum ratings of the transistor for alarm output
VCEO (Collector-emitter voltage)
IC (Collector current)
+ 5 V
PC (Collector dissipation)
* The maximum ratings must not be exceeded.
10 K Ω
2SC2411K
Logic/Pulse input
LOGIC/ PULSE
GND
Trigger input/External sampling input
TRIGGER/SAMPLE
GND
: 30 V
: 0.5 A
: 0.2 W
Example of external connection
Required for an inductive
load such as a relay
ALARM
Load
DC
GND
(5 to 24V)
+ 5V + 3.3V
1 0 K Ω
1 0 K Ω
10 K Ω
1K Ω
+ 5 V +3.3V
10 K Ω
1 0 K Ω
1K Ω
1K Ω
2-20
CHAPTER 2 Checks and Preparation
0.47μF