Victron energy 24/30 User manual

USER MANUAL
SKYLLA-TG 24/30 with Universal Input
SKYLLA-TG 24/50 with Universal Input
SKYLLA-TG 24/100-G with Universal Input
SKYL
LA-TG24100
victronenergie
C H
AR
G E
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opyrights  2010 Victron Energy B.V.
All Rights Reserved
This publication or parts thereof, may not be reproduced in any form, by any method, for
any purpose.
VICTRON ENERGY B.V. MAKES NO WARRANTY, EITHER EXPESSED OR IMPLIED, INCLUDING BUT NOT
LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE, REGARDING THESE VICTRON ENERGY PRODUCTS AND MAKES SUCH VICTRON ENERGY
PRODUCTS AVAILABLE SOLELY ON AN “AS – IS” BASIS.
IN NO EVENT SHALL VICTRON ENERGY B.V. BE LIABLE TO ANYONE FOR SPECIAL, COLLATERAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH OR ARISING OUT OF PURCHASE OR
USE OF THESE VICTRON ENERGY PRODUCTS. THE SOLE AND EXCLUSIVE LIABILITY TO VICTRON ENERGY
B.V., REGARDLESS OF THE FORM OF ACTION, SHALL NOT EXCEED THE PURCHASE PRICE OF THE
VICTRON ENERGY PRODUCTS DESCRIBED HEREIN.
For conditions of use and permission to use this manual for publication in other than
the English language, contact Victron Energy B.V.
Victron Energy B.V. reserves the right to revise and improve its products as it sees fit.
This publication describes the state of this product at the time of its publication and
may not reflect the product at all times in the future.

2 Manual Skylla with universal input
USER MANUAL SKYLLA UNIVERSAL INPUT
1. INTRODUCTION
1.1 Victron Energy
1.2 The Skylla Generation chargers
1.3 Warnings 6
2. DESCRIPTION 7
2.1 The Skylla battery charger 7
2.2 The battery 8
2.3 Protection 9
3. DIRECTIONS FOR USE 11
3.1 Installation 11
3.2 Operation 14
3.3 Maintenance 1
4. OPTIONS 16
4.1 Permanent boost-charge 17
4.2 Adjusting the charge voltage 17
4.3 Adjusting the equalize-charging mode time 18
4.4 Diode-splitter charge voltage compensation. 18
4. Traction battery compensation 19
4.6 Use as a power-supply 19
4.7 Use of a temperature sensor. 19
4.8 Charging batteries with voltage sensing 20
4.9 Intelligent startup 20
4.10 Connecting the output voltage alarm 21
4.11 Connecting remote panels 21
4.12 Connecting a remote on/off switch 22
4.13 Connecting a remote boost switch 22
4.14 Connecting a voltmeter 23
4.1 Connecting a ampèremeter 23
. FAULT TRACING 24
6. TECHNICAL SPECIFICATIONS 2
6.1 General 2
6.2 Input 2
6.3 Output 26
6.4 Mechanical 27

Manual Skylla with universal input 5
1. INTRODUCTION
1.1 Victron Energy
Victron Energy has established an international reputation as a leading designer and
manufacturer of power systems. Our R&D department is the driving force behind this
reputation. This department is continually seeking new ways of incorporating the latest
technology in our products.
A Victron Energy power system can supply high-quality energy at places where there is no
permanent mains power source available.
An automatic stand alone operating energy supply system can consist of: a Victron Energy
inverter, a Victron Energy battery charger, if required a Victron Energy Mains Manager and
batteries with sufficient capacity.
Our equipment can be used in numerous situations, in the field, on ships and in other
places where mobile power is indispensable.
Victron Energy equipment can be used for all kinds of electrical appliances for household,
technical and administrative purposes and instruments susceptible to interference.
1.2 The Skylla Generation chargers
This manual contains directions for installing the following chargers: Skylla-TG 24/30,
Skylla-TG 24/50 and the Skylla 24/100-G. It describes the functionality and operation
including their protective devices and other technical features.

6 Manual Skylla with universal input
1.3 Warnings
The cover of the battery charger may only be removed by a qualified
technician. Before obtaining access to the battery charger the mains
supply circuit must be disconnected.
Explosive gasses can occur during charging a lead-acid battery.
Prevent flames and sparks.
Provide adequate ventilation during charging.
The battery charger can not be used to charge non-rechargeable
batteries.
The on/off switch at the front of the cabinet does not switch off the
mains supply.
Discon
nect the mains supply before making or breaking the
connections to the battery.
Do not use the voltage sense facility in combination with the
diode-
splitter compensation. This will raise the output voltage,
which could damage the battery.
There is a dangerous voltage present on some of the metal parts
inside the battery charger.
The battery charger is NOT protected against reverse battery
polarity. ("+" connected to "-" and "-" connected to "+").
Follow the installation procedure.
The warranty expires when the
battery charger becomes defective due to reverse battery polarity.

Manual Skylla with universal input 7
2. DESCRIPTION
2.1 The Skylla-TG battery charger
The Skylla-TG battery charger is a fully automatic charger for 24V batteries and accepts
any mains supply that delivers 90-265 V A , with frequencies ranging from 45 to 65 Hz.
The Skylla-TG also accepts D supply, ranging from 90 up to 400 V D .
It charges the battery according to the IUoUo characteristic, which is a 3-stage charging
characteristic. This characteristic is shown below in illustration 1.
While charging, the Skylla-TG charger continuously measures the battery voltage and
current and recalculates the charging voltage and current based on the measured values.
Type
Boost vo
ltage
Float voltage
Minimal voltage
24V /
3
0A
28,5 Vdc
26,5 Vdc
25 Vdc
24V /
5
0A
28,5 Vdc
26,5 Vdc
25 Vdc
2
4V /
10
0A
-
G
28,5 Vdc
26,5 Vdc
25 Vdc
Assuming that the battery is discharged, the Skylla-TG charger commences charging in
the boost-charge mode. In this mode the battery is charged until the battery voltage
reaches the boost voltage. At this point the battery is charged to approximately 80% of its
maximum capacity. This is the end of the boost-charge mode and the Skylla-TG charger
then automatically switches to the equalize-charge mode.
During the equalize-charge mode the charging voltage still equals the boost voltage, but
the charge current slowly decreases. The duration of this mode is pre-selectable and may
be set to 4, 8 or 12 hours. The standard time of the equalize-mode is 4 hours. After this
time the Skylla-TG charger automatically switches back to the float-charge mode.
In the float-charge mode the charge voltage decreases to the float voltage and the charge
current continues to decrease. This mode lasts for 20 hours.
After the float-charge mode the charger returns to the equalize-charge mode for 30
minutes, this is to compensate for the normal leakage or self discharge of the battery.
Illustration 1.
The IUoUo charge
characteristic.

8 Manual Skylla with universal input
The Skylla-TG charger can remain connected to the battery continuously, without gas
formation taking place, caused by overcharging. It is not necessary to disconnect the
battery from the charger during long time storage, for example during the winter storage
of a ship. The Skylla-TG charger will keep your battery in optimum condition under all
circumstances and will prolong the lifetime of your battery.
A parallel load connected to the battery can cause a voltage drop. The Skylla-TG charger
automatically switches into the boost-charge mode when the battery voltage drops
below the minimal voltage.
The Skylla-TG charger is equipped with a separate starter-battery connection to charge an
extra battery, like a starter-battery. You can use this battery for starting machines, like a
boat engine for this application.
The Skylla-TG charger has a stabilised output voltage. Therefore the Skylla-TG charger can
also be used as a D power supply in applications where no battery is present.
2.2 The battery
The Skylla-TG charger can charge various batteries. The recommended battery capacity is
indicated in the table below:
Type
Recommended capacity
24
V
/
30A
100
–
200 Ah
24
V
/
50A
200
–
400 Ah
24
V
/
100
A
-
G
500
-
1000 Ah
The charge voltages of the Skylla-TG charger are factory-set. Most battery manufacturers
recommend these charging voltages for optimal charging of 24V or 48V lead-acid
batteries.
It is possible to charge different types of batteries, like traction batteries. To charge these
batteries the charging voltages of the charger have to be changed. ontact your Victron
Energy dealer or battery dealer for more details about the recommended charging
voltages.

Manual Skylla with universal input 9
2.3 Protection
The battery charger is safe to use due to its robust design and its internal electronic
protection. This chapter describes the various internal electronic protective devices.
Maximum charge current protection
 The battery charger provides a maximum charge current of 30A for the 30A charger,
50A for the 50A charger or 100A for the 100A charger.
This level is electronically limited and is factory set.
 The maximum output current can also be limited by using an external potentiometer-
panel, the Victron Energy OV panel.
Short circuit protection
 The charger output is protected against short-circuits. The short-circuit current is
electronically limited at 30A, 50A or 100A, according to the model. In this condition
the output voltage approaches 0 Volt. The battery charger resumes normal operation
when the short circuit is removed.
 The short circuit current can also be reduced by the Victron Energy OV panel.
Input protection
 The charger mains-input is protected with a fuse.
 The charger will not be damaged by using input voltage between 0 and 300 Vac.
 The charger will not be damaged by using input frequency between 0 and 65 Hz.
Over voltage protection
 The charger switches off automatically when the battery voltage becomes higher
than the over voltage value. The charger switches back on when the battery voltage
becomes less than the raise value. See the table below.
Model
Over voltage value
Raise v
alue
24V
35,5 Vdc
33,5 Vdc
 The charger output is protected with a fuse.
Starter battery protection
 The output current of the starter battery output is electronically limited at 4A. The
starter battery output is also protected against wrong connections by means of a 10A
fuse.

10 Manual Skylla with universal input
Temperature protection
 The internal temperature of the charger is measured continuously. However, due to
a high ambient temperature outside the cabinet, the temperature within the
battery charger can rise. When the external temperature of the battery charger
becomes higher than 40° , the output current decreases and the Failure led flashes.
 Before the internal temperature becomes too high due to extreme conditions the
charger switches off and the Failure LED illuminates continuously. The charger
resumes operation when the internal temperature is restored within limits.
Voltage sense protection
 When the voltage sense facility is used the charger automatically decreases the
output voltage when the voltage loss over the battery cables is more than 2 Volt in
total.
Battery watchdog timer
 The charger is equipped with a battery watchdog timer. This timer measures the
duration of the boost mode. The moment the boost mode lasts longer than 10
hours, the charger will switch to float mode. The charging voltage will then become
the float voltage. In this way it is prevented that a defective battery is needlessly
charged with a high charging voltage.