IFC 110 F V2.0 IFC 110 F-EEx V2.0 - Krohne

Sect. 6.8 Part C Special applications, functional checks, service, and order numbers6.7 Quickly changing flowsApplicationFor filling processes, high-speed control circuits, etc.Resetting the signal converter, see Sections 4 and 5.Changing the settings• Fct. 1.02 TIMECONST. (change the time constant)– Change the setting to ”ONLY I” and set time to 0.2 seconds.• Dynamic behaviour for sizes DN 2.5-300 and 1 / 10 -12 inchDead time: approx. 0.06 at 50 Hz line frequencyapprox. 0.05 at 60 Hz line frequencyTime constant: as set above, current output (mA) then is 0.1 seconds• Reduction of dead time by factor 3 (possible by changing the magnetic field frequency)Change Fct. 3.02 FLOW METER, subfunction ”FIELD FREQ.” to ”1/2”,only recommended for PROFIFLUX 5000 F (DN 2.5-100 and 1 / 10 -4 inch)and ALTOFLUX 4000 F (DN 10, 15, 50-100 and 1 / 10 , 1 / 2 , 2-4 inch),for other types and sizes please consult factory.6.8 Changeover of current output, active / passive modeStandard factory setting:active modeThe current output can be changed over to the passive mode. This requires a power source,either an external one or via the isolated internal one (24 V DC), power terminals E+ / E-.See Sect. 2.6 for connection diagrams.Proceed as follows to change over from active to passive mode, or vice versa.Changes on the I/O circuit board (inputs/outputs), see diagram in Sect. 8.7Switch off power source before opening the housing!1) Remove glass cover from control compartment (detach 4 screws).2) Remove cover from terminal compartment (detach 2 screws).3) In terminal compartment, pull off all plug-in terminals.4) Detach 4 screws from the front panel F and carefully pull complete electronic unit out of theconverter housing using the grip at the top of the front panel.5) Place electronic unit down on front panel F.6) Detach the two fastening screws SLP from the I/O board (inputs/outputs) and carefully pullthe board out of the pin base, see figures in Sect. 8.7.7) On the printed side of the I/O board, transpose the two jumpers X3 and X6, in the samedirection, to Position A (= active mode) or Position P (= passive mode).8) Reassemble in reverse order, Points 6) - 1).9) Please note:In the passive mode, load impedance monitoring under Fct. 1.04 DISPLAY andDISP. MESSAGES - yes is not possible.64 IFC 110 F 05/2003