Vetus ELINE060 Manuel D'installation page 20

7 Electrical System
The electrical wiring between the electric motor and the motor con-
troller has already been installed. The installation has an insulated
return.
Connect the motor as follows:
MCVB Boosted charge
- 48 V
CAN-bus
Keeps battery cables free from the E-LINE housing and sharp
Connect all negative conductors! A floating negative causes
system faults!
A (system) voltage higher than 60 V causes irreparable da-
mage to the installation!
7.1 MCVB boosted charge function
Using the MCVB boosted charge function, the 48 Volt E-LINE motor
can be used in an (existing) 24 V onboard network.
- 48 V
By connecting a 24 Volt battery bank to the MCVB boosted charge
connection, the 48 Volt, E-LINE, battery bank is charged. An addition-
al charging facility is not required. See page 96 for the connection
diagram.
20
370301.12
+ 24 V
+ 48 V
CAN-bus
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MCVB
Boosted charge
+ 24 V
+ 48 V
8 - 10 Nm
(6 - 7 ft.lbf )
The MCVB boosted charge function is only suitable for
lead-acid batteries as standard.
7.2 Batteries
The battery voltage should be 48 V nominal, with an operating range
between ≥44 V and ≤59 V. With an absolute maximum of 60 V.
The integrated motor controller limits the output as from 44 V and
stops at 40 V. This prevents excessive battery discharge.
Starter batteries are not suitable for an electric propulsion system.
Instead, semi-traction or traction batteries should be used.
VETUS can supply various maintenance-free batteries. For example
type AGM (Absorbed Glass Mat), DeepCycle or lithium 4-cell LiFePO4
are suitable for electric propulsion.
Balance the voltage of batteries connected in series. Check
individual battery blocks and make sure the voltage between
them is equal.
7.3 Battery capacity
The following points play an important role in determining the bat-
tery capacity:
- Boat characteristics (length of waterline, weight, hull shape)
- Sailing style
- Desired range (sailing time vs speed)
- Battery type
Table 'Power consumption indication displacement vessel' on page
22 gives an indication of the power consumption (energy con-
sumption) of a displacement vessel at different lengths and speeds.
The power consumption can then be used to calculate the sailing
time. See example below:
1. Determining battery capacity
For a boat with a length of 6 meters and a desired sailing speed of
8.8 km/h (4.7 knots) an indicative power input of 2.1 kW applies.
The desired sailing time is set at a minimum of 6 hours, continuous
sailing. This results in a required battery capacity of 2.1 x 6 = 12.6
kWh.
2. Determine battery pack
A battery pack of eight AGM batteries, maximum deep discharge
of 70%, C20 value 220 Ah, 12 V series parallel (4 x 12 V and 2 x 220
Ah) switched to a 48 V battery pack gives a usable battery capacity
of ((220 x 2) x (4 x12) x 70%) = 14.8 kWh.
3. Sailing time calculation (indication)
Based on the energy consumption of 2.1 kW, this gives a sailing
time of (14.8 / 2.1) more than 7 hours.
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Installation manual E-Line electric propulsion