KROHNE IFC 090 Converter EN - Manual (Page 43)

5/12
Combinations of binary outputs and inputs 5.16
Limit switches 5.17
Fct. 3.07 HARDWARE
Press
→
key.
Define function of terminal B1, press key
→
• PULSOUTP. (= pulse output) Select with key
↑
,
• STATUSOUTP. (= status output) press key
↵
to advance to
• CONTROLINP. (= control input) terminal B2.
Define function of terminal B2, press key
→
• STATUSOUTP. (status output)
Select with key
↑
.
• CONTROLINP. (control input)
Press key
↵
to return to Fct. 3.07 HARDWARE.
Please note: If, for example, both output terminals (B1 and B2) are set to status output,
or to control input, their operating modes can ony be selected once.
Example: B1 and B2 are status outputs.
If status output B1 is used for the automatic range change BA, this operating mode
is not available for status output B2.
}
}
Fct. 1.06 or 1.07 status outputs B1 or B2
(Define operating mode of output terminals, see Sect. 5.16)
Press key
→
.
Set status output B1 or B2 to “TRIP POINT” by pressing key
↑
(1 to 9 times).
Press
↵
key to transfer to number setting, 1st digit (cursor) flashes.
Change flashing digit with key
↑
, use key
→
to shift cursor 1 place to the right.
• Display XXX – YYY
• Setting ranges: XXX value = 0 – 150% of Q
100%
YYY value = 0 – 150% of Q
100%
Hysteresis
≥
1% (= difference between XXX and YYY values)
• Switching performance (N/O or N/C contact) can be set.
Note: When the two status outputs B1 and B2 are activated (see Sect. 5.16),
min. and max. values can, for example, be signalled.
The limit switches are active only in the case of forward flow.
N/O contact XXX value > YYY value
Contact closes
when flowrate greater than XXX value
Example: XXX = 55%
YYY = 45%
Hysteresis = 10%
N/C contact XXX value < YYY value
Contact opens
when flowrate greater than YYY value
Example: XXX = 45%
YYY = 55%
Hysteresis = 10%
YYY XXX XXX YYY
hysteresis hysteresis