GRAPHTEC GL980 - Internal Equivalent Circuit of I;O Circuit; Alarm Output; Logic;Pulse Input; Trigger Input;External Sampling Input

2-13
CHAPTER 2 Checks and Preparation
Internal equivalent circuit of I/O circuit
•
Alarm output
+5V
10kΩ
2SC2411K
GND
ALARM
DC
(5 to 24V)
Load
Example of external connection
Required for an inductive
load such as a relay
Maximum ratings of the transistor for alarm output
VCEO (Collector-emitter voltage) : 30 V
IC (Collector current) : 0.5A
PC (Collector dissipation) : 0.2W
* The maximum ratings must not be exceeded.
•
Logic/pulse input
+5V +5V
10kΩ
10kΩ
33kΩ
1kΩ
LOGIC/PULSE
GND
Comparator
•
Trigger input/external sampling input
Comparator
+5V
+5V
10kΩ
10kΩ
1kΩ
GND
TRIGGER/SAMPLE