KROHNE OPTIMASS 3400C - Converter VE Code for I;O Options

ELECTRICAL CONNECTIONS 3
33
OPTIMASS / 400
www.krohne.com10/2022 - 4003491806- AD OPTIMASS 400 Atex R06 en
3.2.2 Converter VE code for I / O options
The converter VE number is defined in the Introduction section at the beginning of this
Handbook.
Overviews of the converter VE code I / O option defined by “n”, “p” and “q” can be found in the
following section. However, the overviews do not show all details. The exact connection diagram
can be found on the label on the inside cover of the connection compartment.
If the meter is being installed in a gas hazardous area, the terminal compartment cable glands
must have the appropriate protection type: increased safety (Ex e) or flameproof (Ex d).
Meters supplied with an Ex e terminal compartment (“f” = 2) are also supplied with two Ex e
certified cable glands and one Ex e / Ex d stopping plug.
All wiring must comply with current, relevant national or regional standards for electrical
installations (for example IEC / EN 60079-14). If you are using IEC / EN 60079-14 please pay
attention to sections: 9 and 10
The torque settings for the terminals is 0.7 Nm. Maximum conductor or ferrule size is 4mm
2
"p" and "q" functions
Terminal Function / electrical data
L, N
L+, N-
Connection for main supply. Always non-Ex i
100...230 VAC, +10% / -15%, 22VA
12...24 VDC, +30% / -25%, 12W
24 VAC +10% / -15%, 22VA
24 VDC +30% / -25%, 12W
U
m
= 253V
A, A-, A+
B, B-
C, C-
D, D-
Intrinsic safety of I/O circuits is determined by the I/O options chosen by the customer. I/O
configuration of the MFC 400 is defined in the converter VE code VE5 where "b" = 3 or 4. See
below for details.
Option code Function "p" Function "q" 1
0 Without, no module possible Without, no module possible
8 Without I/O module Without I/O module
A Current output: active Current output: active
B Current output: passive Current output: passive
C Current output: active, high current Current output: active, high current
E Current output: passive, high current Current output: passive, high current
F Current output: passive, Namur Current output: passive, Namur
G Control input: active, high current (only with
"n" = F)
Control input, active high current
H Control input: active, Namur (only with "n" =
F)
Control input: active, Namur
K Control input: passive, high current (only with
"n" = F)
Control input: passive, high current
1 unless otherwise stated only with "n" ≠ F