Connection - HBM VKK2R-8 Ex Bedienungsanleitung

10
5

Connection

The junctions are identified as shown in the following diagram. The colors
correspond to the wire colors used by most HBM load cells.
Wiring code (6−wire circuit):
To achieve the best-possible measurement results and to optimize
interference immunity, connect to the weighing electronics with HBM cables
using 6-wire circuitry.
If the load cells and the weighing electronics use 4-wire circuitry, the sense
terminals are unused.
If the load cells use 4-wire circuit and the weighing electronic use 6-wire circuit, the
terminal for sense (+) must be bridged with the terminal for excitation (+) as well
as the terminal for sense (−) with the terminal for excitation (−). See also the
Installation Instructions for the corresponding load cell.
The terminals have been designed for a wire cross section of 2.5 mm
single-wire (inflexible) and fine-wire (flexible) conductors. When using fine-wire
conductors with wire end ferrules, the cross section is limited to 1.5 mm
The equipment is fitted with a potential equalization terminal.
CAUTION
To ensure compliance with the IP65 degree of protection, all unused
grommets must be closed off with the plugs provided for the purpose. Tighten
the associated sleeve nut in each case to stop the moisture getting in.
It is essential to use cables only that fall within the range of diameters as
specified by the manufacturer of the screwed cable glands:
M12 x 1.5: Ø 3 mm up to 6.5 mm
M16 x 1.5: Ø 5 mm up to 9 mm
HBM
(gray) Sense (−)
(black) Excitation (−)
(white) Signal (+)
(blue) Excitation (+)
(green) Sense (+)
(red) Signal (−)
Screen (Shield)
(connected to housing)
VKK2R-8 Ex
2
with
2
.
A1552-4.1 en/de