4
ELECTRICAL CONNECTIONS
32
H250 M40
www.krohne.com
03/2020 - 4000640706 - MA H250-M40 R06 en
4.2.3 ESK4-T limit outputs
Once the housing cover has been unscrewed, the scale can be removed. The connection
terminals have a pluggable design and can be removed to connect the cables.
The binary inputs/outputs are electrically isolated from each other and from the ESK4A current
output.
Connection binary outputs
Connection binary outputs
Connection binary outputs
Connection binary outputs
In accordance with the desired signal transmission, select one of the following connection types
for binary outputs B1 and B2:
•
NAMUR (DC interface acc. to EN 60947-5-6)
•
Transistor output (passive, Open Collector)
Figure 4-8: Position of the connection terminals
1
Binary output 1
2
ESK4A power supply / current output
3
Binary output 2
4
Binary input
INFORMATION!
The binary inputs/outputs can only be operated if the power supply is applied to ESK4A terminal
11+ and 12-. The binary inputs/outputs are inactive by default and must thus be activated prior to
first use (for details refer to ESK4-T menu on page 48
).
Binary output
B1
B2
Terminal no.
1
2
3
4
5
6
Connection NAMUR
+
-
+
-
Connection transistor output
+
B
OC
+
B
OC
Table 4-3: Terminal assignment of the binary output