KROHNE MFC 400 EN - Manual (Page 54)

4
ELECTRICAL CONNECTIONS
54
MFC 400
www.krohne.com 08/2013 - 4002075802 - MA MFC 400 R02 en
Control input passive, Ex i I/Os
• 5.5 V ≤ U
ext
≤ 32 VDC
• I
max
= 6 mA at U
ext
≤ 24 V
I
max
= 6.5 mA at U
ext
≤ 32 V
• Switching point for identifying "contact open or closed":
Contact open (off): U
0
≤ 3.5 V with I ≤ 0.5 mA
Contact closed (on): U
0
≥ 5.5 V with I ≥ 4 mA
• X designates the connection terminals B, if available.
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
INFORMATION!
•
Any connection polarity.
Figure 4-26: Control input passive C
p
Exi
1 Signal
.book Page 54 Monday, August 26, 2013 9:05 AM