KL/KS4021, KL/KS4022 - Contact assignment a. LEDs

WARNING

Risk of injury through electric shock and damage to the device!

Bring the Bus Terminals system into a safe, de-energized state before starting mounting, disassembly or wiring of the Bus Terminals!

KL/KS4021, KL/KS4022 - Contact assignment a. LEDs 1:
KL4021, KL4022 - Contact assignment and LEDs

KL4021/KS4021 - Contact assignment

Terminal point

No.

Comment

Output

1

+ Output 1

+24 V

2

+24 V (internally connected to terminal point 6 and positive power contact)

GND

3

0 V (internally connected to terminal point 7 and negative power contact)

Shield

4

PE contact (internally connected to terminal point 8)

n.c.

5

not used

+24 V

6

+24 V (internally connected to terminal point 2 and positive power contact)

GND

7

0 V (internally connected to terminal point 3 and negative power contact)

Shield

8

PE contact (internally connected to terminal point 4)

KL4022/KS4022 - Contact assignment

Terminal point

No.

Comment

Output 1

1

+ Output 1

+24 V

2

+24 V (internally connected to terminal point 6 and positive power contact)

GND

3

0 V (internally connected to terminal point 7 and negative power contact)

Shield

4

PE contact (internally connected to terminal point 8)

Output 2

5

+ Output 2

+24 V

6

+24 V (internally connected to terminal point 2 and positive power contact)

GND

7

0 V (internally connected to terminal point 3 and negative power contact)

Shield

8

PE contact (internally connected to terminal point 4)

KL4021/KS4021, KL4022/KS4022 - LED description

LED

Color

Meaning

Run1 LED
Run2 LED (KL4022 only)

green

On:

Normal operation

Off:

Watchdog timer overflow has occurred. If no process data is transmitted to the bus coupler for 100 ms, the green LEDs go out. The output assumes a user-specified voltage (see Feature register).