KROHNE MFC 400 EN - Manual (Page 34)

4
ELECTRICAL CONNECTIONS
34
MFC 400
www.krohne.com 08/2013 - 4002075802 - MA MFC 400 R02 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 68.
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 Description of the inputs and outputs on page 38 and refer to
Technical data on page 122.
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
.book Page 34 Monday, August 26, 2013 9:05 AM