Signal Cables - Biral HP-E Instructions D'installation Et D'entretien

english
To establish emergency operation proceed as follows:
1. Disconnect the three mains conductors, L1, L2, L3,
from the terminal box, but leave the protective earth
conductor(s) in position on the PE terminal(s).
2. Disconnect the motor supply conductors, U/W1, V/U1,
W/V1, from the terminal box.
3. Connect the conductors as shown in fig.
How to switch an E-pump from normal
operation to emergency operation
Use the screws from the mains terminals and the nuts
from the motor terminals.
4. Insulate the three conductors from each other
by means of insulating tape or the like.
Warning
Do not bypass the frequency converter
by connecting the mains conductors
to the U, V and W terminals.
This may cause hazardous situations
for personnel as the high voltage potential
of the mains may be transferred to
touchable components in the terminal
box.
Check the direction of rotation
Caution
when starting up after switching
to emergency operation.

5.7 Signal cables

– The cables for the external ON/OFF switch, digital input
and reference value and sensor signals must be
screened. The cables must have a cross-section of min.
0.5 mm 2 and max. 1.5 mm
– The cable screens must be connected at both ends
to the earth connection of the pump. A good earth
connection must be ensured for the cable screens.
The screens must be laid as closely as possible to the
connecting terminals, fig. 11.
Fig. 11:
– The screws of the earth connection must always be
fully tightened, regardless of whether a cable is fitted
or not.
– The conductors in the pump terminal boxes should be
kept as short as possible.
Screened 2-wire cable must be used for the bus connec-
tion. The screen should be connected to terminal Y at
both ends, fig. 12.
Fig. 12:
2 .
Y
45