KROHNE MFC 300 EN - Manual (Page 44)

4
ELECTRICAL CONNECTIONS
44
MFC 300
www.krohne.com 02/2012 - 4000498602 - MA MFC 300 R03 en
4.8.3 Status output and limit switch
• The status outputs / limit switches are electrically isolated from each other and from all
other circuits.
• The output stages of the status outputs/limit switches during simple active or passive
operation behave like relay contacts and can be connected with any polarity.
• All operating data and functions can be adjusted.
• Passive mode: external power supply required:
U
ext
≤ 32 VDC; I ≤ 100 mA
• Active mode: use of the internal power supply:
U
nom
= 24 VDC; I ≤ 20 mA
• NAMUR mode: passive in accordance with EN 60947-5-6
• For information on the adjustable operating states refer to
Function tables on page 79.
INFORMATION!
Depending on the version, the status outputs and limit switches must be connected passively or
actively or according to NAMUR EN 60947-5-6! Which I/O version and inputs/outputs are
installed in your signal converter are indicated on the sticker in the cover of the terminal
compartment.
INFORMATION!
For further information refer to Connection diagrams of inputs and outputs on page 49 and refer
to
Technical data on page 134.
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
.book Page 44 Monday, February 6, 2012 11:01 AM