34
•
750-404/000-003 [Frequency Counter 0.1 Hz-100 kHz]
Display
Elements
WAGO-I/O-SYSTEM
750
I/O
Modules
2.1.4.3 Display Elements
LED
Channel
Meaning
State
off
Input GATE: Signal voltage (0),
Measurement released
A
Status
GATE
green
Input GATE: Signal voltage (1),
Measurement disabled
off
Digital Output DO 1 reset
B
Status
DO 1
green
Digital Output DO 1 setting
off
Input CLOCK: Signal voltage (0)
C
Status
CLOCK
green
Input CLOCK: Signal voltage (1),
Counting pulse
off
Digital Output DO 2 reset
13
14
C
D
B
A
C
D
A
B
Fig. 2.1.4-2: Display
Elements
g041402x
D
Status
DO 2
green
Digital Output DO 2 setting
2.1.4.4 Schematic Diagram
0V
10nF
10nF
270pF
270pF
270pF
DO
5V
Logic
24V
DO
24V
0V
DO 1
DO 2
10nF
1
2
3
4
5
6
7
8
750-404
/000-003
GATE
GATE
GATE
CLOCK
CLOCK
CLOCK
Fig. 2.1.4-3: Schematic Diagram
g040431e