Connection

Connection 1:
KL3224 - connection and LEDs

Connection

Terminal point

No.

Comment

+R1

1

Input +R1

- R1

2

Input –R1

+R3

3

Input +R3

-R3

4

Input -R3

+R2

5

Input +R2

-R2

6

Input –R2

+R4

7

Input +R4

-R4

8

Input -R4

KL3224 - LED Displays

LED

Color

Description

Error

red

On

The respective channel is affected by a short circuit or broken wire. The resistance value is in the invalid range of the characteristic curve.

Off

The resistance is in the valid range of the characteristic curve.