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

Sect. 6.4 Part C Special applications, functional checks, service, and order numbers6.3 Changing the load capacity of the output A1 for polarized DC operationIn case of polarized DC operation of output A1 (status or pulse output), the load capacity can beincreased to I ≤ 200 mA (factory setting: I ≤ 100 mA).Switch off the power supply before opening the housing!1) Remove the cover from the terminal compartment (remove 2 screws).2) Pull all plug-in terminals out of the sockets inside the terminal compartment.3) Remove the glass cover from the control compartment (remove 4 screws).4) Remove 4 screws from the front panel, take hold of the handle on the upper end of the frontpanel and carefully pull the complete electronic unit out of the signal converter housing.5) Put down the electronic unit with the front panel facing down.6) Unscrew the SLP screw from the I/O printed circuit board (inputs/outputs) and carefully pullthe PCB out of the plug base (see illustration in Section 8.3).7) Remove the two X4 jumpers from the I/O printed circuit board, turn them by 90° and plugthem back into the PCB in ”DC position” (see illustration of PCB I/O in Section 8.7).8) Re-assemble in reverse order (items 6 to 1).6.4 InterfacesImportant, please note!• Observe the directions and regulations and the electrical data specified in theEC type test certificate.• In addition to the regulations for heavy-current installations (VDE 0100),pay particular attention to the requirements specified in EN 60079-14 “Electricalequipment in hazardous areas”.• Assembly, installation, commissioning and maintenance work may only be carriedout by “personnel trained in explosion protection”!6.4.1 RS 232 adapter incl. IMoCom software (optional)An RS 232 adapter including IMoCom software is available as an optional extra for operation ofthe signal converter with an MS-DOS PC. Detailed instructions are included in the package.The RS 232 adapter connecting the signal converter to the PC or laptop is plugged into theIMoCom bus multipoint connector on the front panel of the signal converter (underneath thesliding window, see Section 4.2).6.4.2 HART ® - interfaceThe HART ® interface is a smart interface, in other words a communication signal superimposedon the current output. All functions and parameters can be accessed via this interface.The following HART ® features are supported:• point-to-point connection• multidrop (up to 15 HART devices)The burst mode is not normally used.Further information about HART is available from the HART ® Communication Foundation, ofwhich KROHNE is a member.58 IFC 110 F 05/2003