Wiring Connections; Three Phase Connections - Davey SILENSOR SLS100 Instalación E Instrucciones De Funcionamiento

4.1.1 Wiring Connections

Please refer to the below schematic for information
on how to correctly install your pump.
E
Figure 4.1
All single phase Silensor models have manual re-
set thermal overload protection built in, i.e. should
overload on motor cause thermal to open circuit and
switch motor off, it will not re-set and switch motor on
until power to the motor has been turned off and then
turned back on.

4.2 Three phase connections

Three phase models are designed for connection to a
nominal 400V power supply, but must be wired with a
contactor with 'quick-trip' (or M10 rated) overloads set
a 4.3 amps.
Davey recommend the use of overloads which also
have the ability to detect "single phasing" or "dropped
phase" conditions in the power supply.
NOTE: Three phase motors do not have
capacitors fitted in the capacitor cover.
1. Wire the attached lead into mains 3-phase
power, being careful to attach the correct wires.
2. Check correct rotation of pump by: Remove bolt
and washer (1) from the rear of the pump using a
½" socket and remove the rear pump cover (2).
3. Check that the three phase wiring is correct
by connecting the lead to power and ensure
that the motor shaft is turning correctly in
a clockwise direction. A directional arrow
can be found on the rear end shield (5).
4. Carefully fit wiring and terminal block back
CAPACITOR
PART No.13567
in to the capacitor housing, ensuring that
all wires are housed so that the rear cover
doesn't pinch the wires when fitted
5. Replace rear pump cover and fasten
with nut and washer. Be sure that the
pump is not resting on the cable.
4.2.1 Wiring Connections
Please refer to the below schematic for information
on how to correctly install your pump.
400V AC 3 Motor Wiring Configuration
P/N 13968
Connected to
contactors
with quick trip
overloads
E
N.B : TO BE EXTERNALLY WIRED IN ACCORDANCE
WITH LOCAL ELECTRICAL AUTHORITY
SPECIFICATIONS BY A QUALIFIED ELECTRICIAN
Figure 4.2
NOTE: THREE PHASE MODELS ONLY
Before finalising wiring connections
and before priming pump, check
That the motor rotates in direction
of arrow (clockwise when the
Shaft is viewed from the wiring
connection end). To alter rotation,
Change any two power leads
at motor terminals.
When the unit is connected and
operating the phase balance should
be checked. This should be within
5% variation. "Rolling" the leads may
help to improve a small unbalance, but
major phase unbalance will usually be
attributed to an input power unbalance.
This must be addressed before the
pump is used. Pipe Connection Barrel
unions need to be hand tightened. No
sealant, glues or silicones are required.
See Figure 4.3 and 4.4 overleaf.
5
Red
Black
Blue
Earth
Leads
from
motor