Connection

WARNING

Risk of electric shock and damage of device!

Bring the bus terminal system into a safe, powered down state before starting installation, disassembly or wiring of the bus terminals!

Connection 1:Fig.5: ED4074

Notice

Cable lengths > 30 m

For cable lengths > 30 m, suitable overvoltage protection (Surge-Protection) must be provided (e g. EL9540-0010) if corresponding interference could affect the signal cable.

Terminal point

Description

Internally connected with connection

Max. current carrying capacity *)

Abbreviation

No.

Ch1 analog output

1

Voltage/current output, channel 1

-

overload protected

Ch2 analog output

2

Voltage/current output, channel 2

-

overload protected

Ch3 analog output

2

Voltage/current output, channel 3

-

overload protected

Ch4 analog output

2

Voltage/current output, channel 4

-

overload protected

+24 V DC

5

+24 V

6; 7, 8 +24 V power contact

1 A

+24 V DC

6

+24 V

5, 7, 8 +24 V power contact

1 A

+24 V DC

7

+24 V

5, 6, 8 +24 V power contact

1 A

+24 V DC

8

+24 V

5, 6, 7, +24 V power contact

1 A

GND

9

Analog ground (reference potential for Ch1 … Ch4)

10, 11, 12

100 mA **)

GND

10

Analog ground (reference potential for Ch1 … Ch4)

9, 11, 12

100 mA **)

GND

11

Analog ground (reference potential for Ch1 … Ch4)

9, 10, 12

100 mA **)

GND

12

Analog ground (reference potential for Ch1 … Ch4)

9, 10, 11

100 mA **)

0 V

13

0 V

14, 15, 16, 0 V power contact

1 A

0 V

14

0 V

13, 15, 16, 0 V power contact

1 A

0 V

15

0 V

13, 14, 16, 0 V power contact

1 A

0 V

16

0 V

13, 14, 15, 0 V power contact

1 A

*) Constant current; short-term higher currents are to be avoided and can lead to thermal overload (damage)
**) The "GND" potential is internally coupled to the "0 V" potential, but is subject to a reduced current carrying capacity

Voltage output 0 … 10 V / -10 … +10 V

Connection 2:Fig.6: Connection example ED4074, voltage output, 2-/4-wire

Current output -20 / 0 / +4 … +20 mA

Connection 3:Fig.7: Connection example EL4074, current output, 2-/4-wire