54
Connecting the external drain contact (option)
LEVEL
UNIT
J8
B5
Control compartment
Do not apply external
voltage via B5!
The potential-free contact of the external drain contact
is connected to the terminals of the terminal block "J8"
on the appropriate driver board in accordance with the
wiring diagram.
The connecting cable must be led through a cable gland
into the control compartment.
CAUTION! Do not apply any external voltage via
the external drain contact "B5" to the terminals of
terminal bock "J8".
Connecting the control voltage
Note: if the Nordmann Omega Pro is equipped with option "CVI" or "TR", a separate control voltage
supply is not required.
MAINS SUPPLY
L N SC1SC2 PEPE
L1 N PE
F4
Q4
230 V/1~/50..60 Hz
Control compartment
The control voltage supply (L1, N, PE) is to be con-
nected in accordance with the wiring diagram to the
corresponding terminals on the driver board in the
control compartment.
The installation of the
fuse" F4"
(10A, slow acting) and
the
electrical isolator "Q4"
(all pole disconnecting
device with a minimum contact clearance of 3 mm, sup-
plied by others) in the mains supply line are mandatory.
For safety reasons the additional installation of a residual
current circuit breaker in the mains supply line (supplied
by others) is recommended. However, the local electrical
installation regulations must be observed and adhered to.
The electrical isolator must be mounted in direct prox-
imity of the control compartment (max. distance 1 m)
and must be easily accessible in a height between 0.6
m and 1.9 m (recommended: 1.7 m) .
CAUTION!
Make sure the voltage indicated on the
specification label meets the local mains voltage. Oth-
erwise, do not connect the unit.
The cross-section of the cable must comply with the
applicable local regulations (minimum of 1.5 mm
2
).
