Electrical Installation - Vetus EHPA12R2 Instructions D'installation

• Nylon tube (internal radius 5 mm (0.2"), external radius
10-mm (0.4"))
After cutting off the
required nylon tub-
ing section, place the
screw cap and the cut-
ting ring on the tubing
(ensuring the correct
distance  from the
end of the tubing) and
then insert the sup-
porting sleeve  into
the pipe.
After hand-tight
assembly of the screw
cap, fasten it fully with
a wrench:
- The right-hand screw coupling : 4 turns
- The T screw coupling
- The intermediate coupling
- The T-piece
Electrical installation
Check whether the voltage mentioned on the identification plate
of the electromotor matches the on-board voltage.
The battery charging device must be more than adequately
powerful to compensate the power consumption of the EHP
while in motion. For details please see the chapter about
'Technical Specifications'.
If the EHP is employed without recharging the batteries, the
battery capacity should be calculated on the basis of the power
consumption listed in the 'Technical Specifications'.
The voltage loss between the battery and the EHP motor must
not exceed 10 % of the supply voltage.
Consult the following wiring table to find the minimum wire
diameter and the maximum cable length.
EHP type Total length of the plus
and the minus cable
EHPA R2, 12 V 0 - 11 m
11 - 18 m
EHPA R2, 24 V 0 - 23 m
EHPB R2, 12 V 0 - 14 m
14 - 22 m
EHPB R2, 24 V 0 - 19 m
EHPC R2, 12 V 0 - 11 m
11 - 18 m
EHPC R2, 24 V 0 - 23 m
10
020203.06
: 2 turns
: 3 turns
: 2 turns
Wire diameter
2
0 - 49 ft 1.5 mm AWG 14
49 - 78 ft 2.5 mm 2 AWG 12
0 - 98 ft 1.0 mm 2 AWG 16
0 - 37 ft 2.5 mm 2 AWG 14
37 - 60 ft 4 mm 2 AWG 12
2
0 - 83 ft 1.0 mm AWG 16
2
0 - 31 ft 2.5 mm AWG 14
2
31 - 50 ft 4 mm AWG 12
2
0 - 66 ft 1.5 mm AWG 16
• Nylon tubing (internal radius 8 mm (0.31"), external
radius 12-mm (0.47"))
1 After cutting, screw the tube coupling sleeve onto the tubing
(left-handed thread), ending approximately 1.5 mm (0.06") in
front of the stop.
2 Oil the tube coupling and screw it into the sleeve.
Make sure that the internal sheathing of the tubing does not
follow while tightening the screw!
Also make sure that the internal sheathing of the tubing is not
squeezed while tightening the screw.
Install a main switch as well as a fuse in the + cable of the pri-
mary electric circuit; the fuse value should match the technical
specifications. Install a 2 A fuse in the control circuit.
Connections
Connecting the EHP to a selector switch
In conjunction with the connection of the EHP to a selector
switch, please consult the individual circuit diagrams on page
42.
Connecting the EHP to the autopilot
For details concerning the connection of the EHP to the autopi-
lot, please see the individual circuit diagrams on page 42.
Limit switches
If the EHP is controlled by a selector switch, install limit switches
next to the rudder stops.
If necessary, a control light may be connected to these limit
switches.
In the presence of a automatic steering gear, the EHP is fre-
quently switched off as soon as a certain rudder deflection,
measured by the rudder indicator of the automatic steering gear,
is reached. If the automatic steering gear is not equipped with
this device, corresponding limit switches must be installed.
For details concerning the connection and the setup of the limit
switches please see page 41.
vetus® Electro-Hydraulic Pumps