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

Part A System installation and start-up Sect. 2.3.22.3.2 Pulse output A1 for electromechanical totalizers (EMC)PLEASE NOTE:The output terminal A1 can be used as status output A1 or as a 2nd pulse output A1 forelectromechanical totalizers.Setting is as described in Fct. 3.07 HARDWARE, see Sections 4.4 and 5.18.• Pulse output A1 is electrically connected to status output A2 (common centre groundingcontact A⊥) but electrically isolated from all other circuits.• Setting data and functions can note down in the Table in Sect. 3.Please also refer to Section 2.7 ”Standard factory settings”.• All operating data and functions are adjustable, see Sections 4.4 and 5.7, Fct. 1.07.• Active mode: uses the internal power supply, terminals E+/E-• Passive mode: requires external power supply, U ext ≤ 32V DC/24V AC, I ≤ 100mA(I ≤ 200mA for polarized DC operation, see Section 6.3)• Max. adjustable frequency 50 kHz• Scaling in pulses per unit of time (e.g. 10 pulses/s at Q 100% flow) orin pulses per unit of volume (e.g. 10 pulses/m³ or US Gal).• Pulse width symmetric, pulse duty factor 1:1, independent of output frequency,automatic, with optimum pulse width,pulse duty factor approx. 1:1 at Q 100% , orpulse width range from 0.01 to 1 s adjustable as required forcorrespondingly lower output frequency.• Forward/reverse flow measurement (F/R mode) is possible, see Section 5.15.• Connection diagrams see Section 2.6• Schematic wiring diagram for pulse output A1 for electromechanical totalizers EMC.This pulse output has a MOSFET switch as output which switches direct and alternatingvoltages similar to a relay contact.05/2003 IFC 110 F 19