KROHNE MFC 300 EN - Manual (Page 58)

4
ELECTRICAL CONNECTIONS
58
MFC 300
www.krohne.com 02/2012 - 4000498602 - MA MFC 300 R03 en
Status output / limit switch active, modular I/Os
• Observe connection polarity.
• U
int
= 24 VDC
• I ≤ 20 mA
• R
L
≤ 47 kΩ
• open:
I ≤ 0.05 mA
closed:
U
0, nom
= 24 V at I = 20 mA
• X designates the connection terminals A, B or D, depending on the version of the signal
converter.
Status output / limit switch passive, modular I/Os
• Any connection polarity.
• U
ext
= 32 VDC
• I ≤ 100 mA
• R
L, max
= 47 kΩ
R
L, min
= (U
ext
- U
0
) / I
max
• open:
I ≤ 0.05 mA at U
ext
= 32 VDC
closed:
U
0, max
= 0.2 V at I ≤ 10 mA
U
0, max
= 2 V at I ≤ 100 mA
• The output is open when the device is de-energized.
• X designates the connection terminals A, B or D, depending on the version of the signal
converter.
Figure 4-23: Status output / limit switch active S
a
Figure 4-24: Status output / limit switch passive S
p
.book Page 58 Monday, February 6, 2012 11:01 AM