KROHNE IFC 090F Converter EEx-ATEX EN - Manual (Page 15)

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 15
The active module DC-I is needed in the 24 Vac/dc power supply version to form an active current
or pulse output in combination with one of the passive modules P-SA or FA-ST. Due to limited
space it is not available for 100...230 Vac supply versions.
Possible combinations of the installed MODIS modules for the 24 Vac/dc power supply
version of the IFC 090i-EEx
IFC 090i-EEx version Part No. MODIS modules Terminal designation
Ex-i1 2.11582.01.00 P-SA FA-ST I ⊥ I B1 B1 ⊥
Ex-i2 2.11582.03.00 P-SA F-PA I ⊥ I D D ⊥
Ex-i3 2.11582.02.00 P-SA DC-I I+ I
Ex-i4 2.11582.05.00 FA-ST F-PA B1 B1 ⊥ D D ⊥
Ex-i5 2.11582.06.00 FA-ST DC-I B1+ B1
Ex-i6 2.11582.07.00 FA-ST FA-ST B2 B2⊥ B1 B1 ⊥
Ex-i7 2.11582.08.00 P-SA F-FF I ⊥ I D D ⊥
Ex-i8 2.11582.09.00 FA-ST F-FF B1 B1 ⊥ D D ⊥
Possible combinations of the installed MODIS modules for the 100-230 Vac power supply
version of the IFC 090i-EEx
IFC 090i-EEx version Part No. MODIS modules Terminal designation
Ex-i1 2.12253.01.00 P-SA FA-ST I ⊥ I B1 B1⊥
Ex-i2 2.12253.02.00 P-SA F-PA I ⊥ I D D ⊥
Ex-i4 2.12253.03.00 FA-ST F-PA B1 B1 ⊥ D D ⊥
Ex-i6 2.12253.04.00 FA-ST FA-ST B2 B2⊥ B1 B1 ⊥
Ex-i7 2.12253.05.00 P-SA F-FF I ⊥ I D D ⊥
Ex-i8 2.12253.06.00 FA-ST F-FF B1 B1 ⊥ D D ⊥
Due to mechanical and electrical limitations, only the listed pairs of MODIS modules are possible.
The two modules each use two terminals of the bottom four terminals of the flameproof terminal
feed-through in the dividing wall between the electronics and terminal compartment of the signal
converter housing, except for the combination with module DC-I (only applicable for 24 Vac/dc
versions), where only two of the four terminals are used. Interconnection of the two modules, P-
SA with DC-I or FA-ST with DC-I is made internally.
The flameproof terminal feed-through has seven terminals in total, the top two terminals are used
for connection of the power supply, the third one is only used for mounting of a metal dividing
plate with insulating cover plate. The remaining four are used for the intrinsically safe signal in-
/output circuits of the installed MODIS modules.
The metal dividing plate and the insulating cover plate warrant the required separation distances
(i.e. clearances, creepage distances and distances through insulation) between the non-
intrinsically safe power supply terminals and the intrinsically safe signal in-/output circuits. The
insulating cover plate is provided with a sticker that contains important instructions how to remove
and re-install the cover plate and the conditions under which it should be established (circuits not
live !).
Important !
Carefully follow the instructions on the sticker that is glued to the top of the
insulating cover plate that covers the non-intrinsically safe power supply
terminals !