E-m-pf4-v1_00 – ROTRONIC PF4 User Manual

Page 25

E-M-PF4-V1_00

Rotronic AG

Bassersdorf, Switzerland

Document Code

Unit

PF4 Differential Pressure Transmitter:

Instruction Manual

Document Type

Page 25 of 54

Document Title

E-M-PF4-V1_00

Figure 14: Connection terminals on the board

Note:

Terminal K2-3 (protective ground) is connected with GND due to the closed solder jumper B5. To remove this

connection, open solder jumper B5.

Warning:

Before connecting the PF4 to an active Ethernet network, make sure it is configured correctly for IP

communication. Otherwise conflicts could disturb communication in the network.

Terminals

Description

K2-1: V-

Power supply: 15…40 VDC (-) or

14…28 VAC

K2-2: V+

Power supply: 15…40 VDC (+) or

14…28 VAC

K2-3:

Protective ground

K3-1: NC

Normally closed – relay not energized

K3-2: COM

Common – common contact

K3-3: NO

Normally open – relay energized

K4-1: OUT1

Differential pressure analog output

(+)

K4-2: OUT2

Temperature / Humidity

analog output (+)

K4-3: GND

Ground (connected to other GND),

see note below

K4-4: GND

Ground (connected to other GND)

Ethernet

(optional)