KROHNE H250 M40 EN - Manual (Page 30)

4
ELECTRICAL CONNECTIONS
30
H250 M40
www.krohne.com 11/2012 - 4000640702 MA H250 M40 R02 en
4.2.3 Binary inputs/outputs ESK4-T
Once the housing cover has been unscrewed, the scale can be removed. The connection
terminals feature a pluggable design and can be removed to connect the cables.
The binary inputs/outputs are electrically isolated from each other and from the ESK4 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 in accordance with EN 60947-5-6)
• Transistor output (passive, open collector)
1 Binary output 1
2 Power supply / durrent output ESK4
3 Binary output 2
4 Binary input
INFORMATION!
The binary inputs/outputs can only be operated if the power supply is applied to ESK4 terminals
11+ and 12-. The binary inputs/outputs come inactive by default and must thus be activated prior
to first use (see Section 6.6 Menu ESK4-T)
Binary output B1 B2
Terminal no. 1 2 3 4 5 6
Connection NAMUR + - + -
Connection transistor output + B
OC
+ B
OC
MA_H250_M40_R02_en_640702_PRT.book Page 30 Wednesday, November 28, 2012 12:23 PM