Mastervolt Mac Plus 2/12-50, Mac Plus 12/24-30, Mac Plus 24/12-50, Mac Plus 24/24-30 Installation Manual

MAC-PLUS

1

Mac Plus

DC-DC CHARGER

12/12-50, 12/24-30, 24/12-50, 24/24-30

EN USER

AND INSTALLATION MANUAL

NL GEBRUIKERS

- EN INSTALLATIEHANDLEIDING

DE BEDIENUNGS

- UND

INSTALLATIONSANLEITUNG

FR MANUEL

UTILISATEURS ET D’INSTALLATION

IT MANUALE DI USO E MANUTENZI ON E

ES MANUAL DEL USUARIO Y DE INSTALACIÓN

10000013205/02

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MAC-PLUS

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Table of Content

1.

INTRODUCTION ......................................................................................................... 4

2. SAFETY INSTRUCTIONS .............................................................................................. 4

3. PRODUCT DESCRIPTION ............................................................................................ 7

4. DIMENSIONS ............................................................................................................. 8

5. FRONT PANEL ............................................................................................................ 9

6. IDENTIFICATION LABEL ............................................................................................ 10

7. INSTALLATION INSTRUCTIONS................................................................................. 11

8. PLACEMENT AND MOUNTING ................................................................................. 12

9. CONNECTION .......................................................................................................... 12

10. CONFIGURATION ..................................................................................................... 15

11. OPERATION ............................................................................................................. 18

12. TROUBLE SHOOTING ............................................................................................... 19

13. TECHNICAL SPECIFICATIONS .................................................................................... 21

14. MASTERBUS ............................................................................................................ 25

15. MASTERBUS: CONTROL AND CONFIGURING OF THE MAC PLUS .............................. 29

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1. Introduction

Most boats, service vans, campers and trucks have service batteries. W hen a service battery is
charged in a tr aditional way, there can be quite some problems:

• Charging the service batt ery takes a lot of time.

• The service bat tery does not charge completely.

• The service bat tery damages due to peak voltages.

Modern, fuel ef ficient engines that are equipped with smar t alternators m ade these problems even
worse, and so the demand for a solution has grown.

The solution: M ac Plus DC-DC chargers. The Mac P lus monitor s the service battery and
compensates the cable voltage loss. T he proven 3-Step algorithm ensures a quick and safe charge.
Moreover, by stabilizing the charge voltage, Mac Plus protects your service battery and sensitive
equipment and m akes sure it’s always full y charged.

2. Safety instructions

READ AND SAVE THESE INSTR UCTIONS

WARNING
This chapter describes important safety and operating instructions for use of a Mac Plus

in residential, vehicl e (RV) and marine applications.

General

1 Before using the Mac Plus, read all instructions and cautionary mark ings on the Mac Plus, the

batteries, and all appropri ate sections of the manual.

2 To reduce the risk of elect ric shock – Do not expose Mac Plus to rain, snow, spray, moisture,

excessive pollution and con densing circumstances. To reduce risk of fire hazard, do not cover
or obstruct the ventilati on openings. Do not install the Mac Plus in a poorly ventilated room, this
may result in overheating.

3 Use of an attachment or spare part not recom m ended or sold by Mastervolt may r esult in a risk

of fire, electric shock, or injury to pers ons.

4 The Mac Plus is designed to be permanently c onnected to a DC el ectrical system. Instal lation

of, and work on t he M ac Plus, may be carried out only b y a qualified, authorised and trained
technici an or electrician, consistent with the locally applicable standards and regul ations.

5 Make sure t hat all wiring is properly installed and in good electrical condition; and that wire size

is large enough for DC ampere rating of the Mac Plus. Check t he w iring on a regular base, at

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least once a year . Do not use the Mac P lus when the wiring is undersized or damaged and
replace the wi ring immediately.

6 Do not operate M ac Plus if it has received a sharp blow, been dropped, or otherwise damaged

in any way; take it to a qualifi ed service technician.

7 Except for the connection compartment, the Mac Plus m ay not be opened or disassembled.

There are no serviceable part s inside the cabinet. Take it to a qualified, authorized and trained
service t echnician when service or repai r is required. Incorrect reassembly may res ult in a risk
of electric shock or fire. O nly qualified, electrici an installers ar e authorized to open the
connection compartment.

8 To reduce risk of electri c shock, disconnect the Mac Pl us from the DC electrical syst em before

attempting an y m aintenance or cleaning. Turning off cont rols will not r educe this risk.

9 The Mac Plus may not be used by children or by thos e w ho cannot read an d understand the

manual if t hey are not supervised by a responsible person who c an guarantee that the charger
is being used i n a safe manner. Keep the charger away from childr en.

10 Short circ uiting or revers ing polarit y w ill lead to ser ious damage to batteries, Mac Plus, w iring

as well as accessories. Fuses cannot prevent damage caused by reversed polar ity and the
warranty wil l be void.

11 In case of fire, you must us e the fire extinguisher which is appropriate for electrical equi pm ent.
12 If applied in a marine applicat ion in the United States, exter nal connections to the Mac P lus

shall comply with the Unit ed States Coast G uard Electrical Regulations
(33CFR183, Su b part I).

Explosive gases

1 WARNING – RISK OF EXPLOSIVE GASES. WORKING IN VICINITY OF A LEAD-ACID

BATTERY IS DANGEROUS. BATTERIES GENERATE EXPLOSIVE GASES DURING
NORMAL BATTERY OPERATI ON . FOR THIS REASON, IT IS OF UTMOST I M POR TANCE
THAT EACH TIME BEFORE USING THE M AC PLUS, YOU READ THIS MANUAL AND
FOLLOW THE INSTRUCTION S EXACTLY.

2 To reduce risk of battery expl osion, foll ow these instructions and thos e published by battery

manufacturer and manufacturer of any equipment you intend to use in vici nity of the battery.
Review cautionary marking on these products.

3 DANGER: To red uce the risk of explosion – Never use the Mac Plus in situations where there

is danger of gas or dust explosion or area in which ignition-protected equipment is requir ed.

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Warnings regarding the use of batter ies

1 Someone should be within rang e of your voice or close enough to come to your aid when you

work near a batt ery.

2 Have plenty of fresh water and soap nearby in case battery acid contacts skin, clothing, or

eyes.

3 Wear complete eye protection and clothing protection. Avoid touching eyes while work ing near

battery.

4 If batter y acid contacts skin or clothing, wash immediatel y with soap and water. If acid enters

eye, immediatel y flood eye with running cold water for at least 10 minutes and get medical
attention imm ediately.

5 NEVER smoke or allow a spark or flame in vici nity of battery or engine.
6 Do not short circuit batteries, as this may result in explosion and fir e hazard! Be extra cautious

to reduce ri sk of dropping a met al tool onto battery. It might spark or short-circuit bat tery or
other electrical part t hat may cause explosi on.

7 Remove personal metal items such as rings, bracelets, necklaces, and watches when working

with a battery. A battery can produce a short-circuit current high enough to weld a ring or t he
like to met al, causing a severe burn.

8 Only use Mac Plus for charging a LEAD-ACID or Mastervolt Li-Ion batteries and the supply of

users att ached to these batteries, in permanent systems. Do not use Mac P lus for charging dry­cell batteries that are commonly used with home appliances. These batteries may burst and
cause injury to persons and damage to property.

9 NEVER charge a frozen battery.
10 Excessive battery discharge and/or hi gh charging voltages can cause serious damage to

batteries. Do not exceed the recommended limits of discharge level of your batteries.

11 If it is necessary to remove a battery, always remove ground ed terminal from battery fi rst. Make

sure all acc essories are off, so as not to caus e an arc.

12 Be sure that t he area around battery is well vent ilated while bat tery is being charged. Refer to

the recommend ations of the bat tery manufacturer.

13 Batteries are heavy! It may become a project ile if it is involved in an accident! Ensure adequate

and sure mounting and always use suitable handling equipment for transportation.

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Warning regarding life support applicati ons

Do not use the Mac Plus for applications in any medic al equipment intended for use as a
component of a life support system. For this type of use a s pecific wr it ten agreement betw een the
customer and Mastervolt is required.

Guarantee spe cifications

The correct functioning of this product i s subject to warranty. The peri od and conditions of this
warranty are l aid down in Mast ervolt Warranty Terms and Conditions and c an be downloaded f rom
www.mastervolt.com/support.

For making an appeal on warran ty you can contac t your supplier directly, stating your com plaint,
application, date of purchase and part number / serial number.

3. Product description

The Mac Plus charger converts a DC (battery) voltage to a regulated DC voltage. It can be us ed as:

1 a 3-Step + battery charger or;
2 a stabili zed D C power supply.

The Mac Plus can only be used in installat ions with a negative ground.
For different system vol tages the followi ng m odels are available.

Overview of the M ac P lus models

Model Input Output Article number
12/12-50 12 V 12 V; 50 A 81205100
12/24-30 12 V 24 V; 30 A 81205300
24/12-50 24 V 12 V; 50 A 81205200
24/24-30 24 V 24 V; 30 A 81205400

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4. Dimensions

146 mm

198 mm

255 mm
66 mm

165 mm

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5. Front panel

Front panel

1 Status LED
2 + Output
3 Ground
4 + Input
5 MasterBus (2x)
6 DIP switch
7 Accessories connector

Pin 1 : + batter y voltage sense input
Pin 2 : - battery voltage sense input
Pin 3 : not used
Pin 4 : remote switch input
Pin 5-6 : battery temperature sensor input

1 2 3 4 5

6

7

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6. Identification lab el

Identifi cation label

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7. Installation instruc tions

Installation steps:

1 Place and mount the Mac Plus
2 Connect the M ac Plus
3 Configure the Mac Plus

These three steps are described in this c hapter.

WARNING!

Read the entir e m anual before installing the M ac Plus. Keep the manual at a safe location
for future reference.

• Install the Mac Plus in a well-ventil ated room protec ted against rai n, snow, spr ay, vapour, bilge,
moisture and dust.

• Operating temperature range: -20 up to +60 ºC, >4 0 ºC derating power

• Never use the Mac Plus at a location where there is danger of gas or dust explosions .

• Mount the Mac Plus in such a way that obstruct ion of the airf low through the heatsink is
prevented. No objects must be located withi n a distance of 10 cm / 4 inch around the Mac Plus.

• Do not instal l the Mac Plus i n the same compartment as the batter ies. Do not mount the Mac
Plus straight above the batteries becaus e of possible corrosive sulphur fumes.

• Be sure that t he output of the suppl ying source is switched off during inst allation. Also be sure
that no consumers are connected to the batter ies during installation, t o prevent hazardous
situations.

• Use cables w ith an appropriate size, see the table below.

Recommended wire sizes DC input/output

Model

Minimum wire size Input

Minimum wire size Output

12/12-50 16 mm2 16 mm2
12/24-30 16 mm2 10 mm2
24/12-50 10 mm2 16 mm2
24/24-30 10 mm2 10 mm2

Min. 3 Nm – max. 5 Nm

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8. Placement and mounting

Mount the Mac Plus with four screws to a solid flat surface.

9. Connection

• Mac Plus as a bat tery charger, see installation drawing A.

• Mac Plus as a stabilized DC power supply, see i nstallati on drawing B.

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Installation dr awing A

Installation dr awing B

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Remote switch input

The remote switch input can be used t o enable and dis able the battery charger. In a vehicle
application is it recomm ended to connect the engine run signal . Depending on the vehicle the
engine run si gnal can be provided in differ ent ways. For details contact your vehicle distributor.

The remote input can accept two different enable levels:

• active low, connect to gr ound (between 0 and 0. 5 V )

• active high, connect to + bat tery voltage (bet ween 3 and 32 V)

The remote switch input confi guration can be done by DI P switch (see chapter 10) or by MasterBus
(see chapter 14 and 15).

Battery temperature sensor (included)

By installing the Mastervolt temperature sensor, the charge voltages are automatically adapted for
deviating tem peratures.

Figure 1. Temperature compensated charging

When the battery temperature i s low, the charge voltage increases. In case the battery tem perature
is high, the charge voltage is decreased. Over charge and gas sing are prevented this way. This will
extend the life of your batter y.

Voltage drop compensat ion

The Mac Plus is able to compensate the voltage drop occurring over the output cables. For this
purpose the MAC PLUS is equipped with terminals for voltage sense wires . Use 0,75 mm2,
preferably red and black wi re and protect these with a 2 A fuses slow blow. Pay good attenti on to
the polarity of the wires.

In order to ac curately measure the battery vol tage, connec t the voltage sense wi res as clos e to the
battery poles as possible. The positieve and negative volt age sense wir es must be connect ed.
Cable losses will be compensated up to a maximum of 2.5 V.

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10. Configuration

The Mac Plus settings can be adj usted in two ways :

• By means of DIP switches;

• Via the MasterBus network (by means of a remote control panel or an interface connected to a
PC with Mast erAdjust software); see chapter 14 and 15.

Once a DIP switch has been set to On, t he related sett ing cannot be configured via MasterBus.

CAUTION!

Incorrect settings of the Mac Plus can cause serious damage to your batteri es and/or the connected
load! Adjustments of set tings may be undertaken by authorised personnel only!

For an overview of the various DIP switch settings, please see the follow ing three tables .

MasterBus communication

No MasterBus communication in sleep mode

(Low no-load c onsumption 2 mA)

Always Mast erBus communication

(No-load consumption < 10 mA)

Charger on conditions

Typical use

MasterBus settings

apply. See chapter
14 and 15.

Default fac tory
setting:

Remote switch input
‘active high’ and input
voltage greater than
enable voltag e
setpoint (12.50 V* /

25.00 V**)

Default fac tory

setting:
Recommended

setting for vehicle
with proper engi ne
run signal

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Always on

(Remote switch input
not used)

When the battery

charger must be
always active

Remote switch input

‘active low ’

Enable the battery

charger by external
operating signal

Remote switch input

‘active high’

Enable the battery

charger by external
operating signal

Remote switch input

‘active low ’

and

input voltage greater
than enable vol tage
setpoint (12.50 V* /

25.00 V**)

Recommended

setting for vehicle
with proper engine
run signal

Remote switch input

‘active high’

and

input voltage greater
than enable vol tage
setpoint (12.50 V* /

25.00 V**)

Recommended

setting for vehicle
with proper engine
run signal

Input voltage greater

than enable vol tage
setpoint (13.50 V* /

27.00 V**)
(Remote switch input

not used)

Higher enable

voltage setpoint.
Setting for vehicle
without engin e run
signal

Any other DIP sw itch combination

MasterBus settings

apply. See chapter
14 and 15.

* 12/12-50 and 12/24-30, **24/12-50 and 24/24-30

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Battery*

MasterBus settings apply.

See chapter 14 and 15.

Default factory setting: Flooded battery

Flooded battery

Bulk/Abs/Float: 14.25/14.25/13.25 V**

28.50/28.50/26.50 V***

Gel

Bulk/Abs/Float: 14.25/14.25/13.80 V**

28.50/28.50/27.60 V***

AGM

Bulk/Abs/Float: 14.25/14.25/13.80 V**

28.50/28.50/27.60 V***
Spiral

Bulk/Abs/Float: 14.25/14.25/13.80 V**

28.50/28.50/27.60 V***
Traction

Bulk/Abs/Float: 14.55/14.55/13.25 V**

29.10/29.10/26.50 V***

NiCad

Bulk/Abs/Float: 14.50/14.50/14.50 V**

29.00/29.00/29.00 V***
Constant output voltage 13,25 V*/26,50 V***

* For Li-Ion see MasterBus settings, chapter 14 and 15
** 12/12-50 and 24/12-50
***12/24-30 and 24/24-30

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Figure 2. Typical charge characteristic (at 25°C / 77°F). For a 24 V battery charger, multiply the voltages by two.

11. Operation

Battery charger operation modes

Mode Explanation
Charging

The Mac Plus is in charging mode if it meets the switch-on
conditions (see dipswich/ MasterBus settings)

Standby

The Mac Plus goes to standby w hen is does not meet the

switch-on conditions (see dipswich/ Mast erBus settings)

Or

Switched off by the on / off butt on in the MasterBus menu or by
a MasterBus event

Sleep (low no-load power
consumption)

The Mac Plus goes to sleep mode when the sleep delay has

passed to reduce the no-load po wer consumpti on
Every 5 sonds, t he M ac Plus scans if the configured battery

charger meets de switch-on confitions

Alarm

Possible er ror, connect M asterBus and analyse the situation

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LED indicator

Use the foll owing table to understand the meaning of the LED signals.

LED color LED indicati on Meaning What to do?

Green

Solid

Charging

Normal operation

Green

Slow blinki ng

Software
update

Normal operation

Blue

Solid

Standby

Normal operation

Red-Blue

Fast blinking

Sleep

Normal operation

Red

Solid

Slow blinki ng

Possible

error

Connect MasterBus and analyse

the situation

12. Trouble shooting

Malfunction

Possible cause

What to do

No output volt age

and/or curr ent

No input voltage

Check wiring

Input voltage t oo low

Check input vol tage, check configuration

No enable signal on the

remote switch input

Check remot e switch input

The primary (input)
battery is discharged too
far

Charge input bat tery

LED is red

Check chapt er 11 for an overview of fault indications of the LED’s.

Output voltag e too

low, charger supplies
maximum current

Load connected to the

batteries is larger than
battery charger can
supply.

Reduce load taken from the batteries.

Batteries not 100%

charged

Measure battery voltage. Af ter some time

this will be higher.

Wrong setting of the
charge voltag e

Check settings

Charge current too

low

Batteries almost fully

charged

Nothing, this is normal when t he battery is

almost fully charged.

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Malfunction Possible cause What to do

High ambient
temperature

Nothing; if am bient temperature is more
than the setting limit, the charge curr ent is
automatical ly reduced.

Batteries not fully
charged

Charge current too low

See “Charge current too low” in this table.

Current to l oad is too

high

Reduce load taken from the batteries.
Charge time too short

Use a battery charger with hi gher capacity.

Battery temperature too

low

Use the batter y temperature s ensor.
Defective or old battery

Check battery and replace if necessary.

Wrong setting of the

charge voltage

Check settings

Batteries are
discharged t oo fast

Battery capacity reduced
due to wastage or
sulphation, stagnation

Charge and recharge a few times, this
might help.

Check battery and replace if necessary.

Batteries are too

warm, gass ing

Defective bat tery (short

circuit in cell)

Check battery and replace if necessary.

Battery temperature too

high

Use the batter y temperature s ensor.
Charge voltage t oo high

Check settings

Slow or no

MasterBus
communication.

Error in t he M asterBus

wiring.

Check the Mas terBus cables.

No terminati ng device

placed at the en ds of the
network.

MasterBus needs a terminating device on

both ends of t he network. Chec k if
connected.

MasterBus network is

configured as a ring
network.

Ring networks are not allowed. Check the

connections of the network .

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13. Technical specifications

MAC PLUS

12/12-50

MAC PLUS
12/24-30

MAC PLUS
24/12-50

MAC PLUS
24/24-30

Article no. 81205100 81205300 81205200 81205400
Input specifications

Nominal input voltage

12 V

12 V

24 V

24 V

Input voltag e range

10-16 V

10-16 V

19-32 V

19-32 V

Max input current

50 A

50 A

30 A

30 A

No load consumption

< 2 mA

Output specificati ons

Nominal output
voltage

12 V

24 V

12 V

24 V

Output voltag e range

10-15 V

20-30 V

10-15 V

20-30 V

Max output current

50 A

30 A

50 A

30 A

Flat battery charge

yes, reduced (25%) charge current at low (<9 V / <18 V) battery voltage

Protecti on against

overload

yes

Reverse polari ty

detection

yes, internally fused, non replaceable
Charge charact eristic

Mastervolt 3-Step algorithm

Battery types

Flooded, Li-Ion, Gel, AGM, Spiral, Trac tion
NiCad, Constant vol tage, User defined

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General specifications

Galvanic ins ulation

No

Efficiency

> 95% at full output

Protecti on against

over-temperature

Yes

Weight

2 kg

Dimensions, hxwxd

255x165x66 mm (10.0x6.5x5.6 inch)

Cooling

Natural cool ing

IP rating

IP23

Connection in- and

output

M8 screw term inal, wire si ze 10 -50 mm2

MasterBus

Yes (not powering)

Battery temperature
sense

Yes, sensor included

Battery voltage sense

Yes, sensor incuded

Remote swit ch input

Yes (active high / active low)

DIP switches

Yes, for basic setup

LED

Yes, 3-color LED

Operating
temperature r ange

-20 up to +60 ºC, >40 ºC derating power

Approvals

CE, E-mark (pending)

Battery settings

Flooded

Bulk voltage

14.25/28.50 V

Max bulk time

480 min

Min bulk ti m e

120 s

Start bulk ti me

13.25/26.50 V

Bulk ret. volt.

12.80/25.60 V

Bulk retur n time

30 s

Abs. voltage

14.25/28.50 V

Max absorp. time

240 min

Min absorp. time

15 min

Return amps

6.0 %*I max

Float voltage

13.25/26.50 V

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Gel

Bulk voltage

14.25/28.50 V

Max bulk time

480 min

Min bulk ti m e

120 s

Start bulk ti me

13.25/26.50 V

Bulk ret. volt.

12.80/25.60 V

Bulk retur n time

30 s

Abs. voltage

14.25/28.50 V

Max absorp. time

240 min

Min absorp. time

15 min

Return amps

6.0 %*I max

Float voltage

13.80/27.60 V

AGM

Bulk voltage

14.25/28.50 V

Max bulk time 480 min

Min bulk ti m e

120 s

Start bulk ti me 13.25/26.50 V

Bulk ret. volt.

12.80/25.60 V

Bulk retur n time 30 s

Abs. voltage

14.25/28.50 V

Max absorp. time 240 min

Min absorp. time

15 min

Return amps 6.0 %*I max

Float voltage

13.80/27.60 V

Spiral

Bulk voltage 14.25/28.50 V

Max bulk time

480 min

Min bulk ti m e 120 s

Start bulk ti me

13.25/26.50 V

Bulk ret. volt. 12.80/25.60 V

Bulk retur n time

30 s

Abs. voltage 14.25/28.50 V

Max absorp. time

240 min

Min absorp. time 15 min

Return amps

6.0 %*I max

Float voltage 13.80/27.60 V

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Li-Ion

Bulk voltage 14.25/28.50 V

Max bulk time

480 min

Min bulk ti m e 120 s

Start bulk ti me

13.25/26.50 V

Bulk ret. volt. 13.25/26.50 V

Bulk retur n time

240 s

Abs. voltage 14.25/28.50 V

Max absorp. time

240 min

Min absorp. time 15 min

Return amps

6.0 %*I max

Float voltage 13.50/27.00 V

Traction

Bulk voltage 14.55/29.10 V

Max bulk time

480 min

Min bulk ti m e 120 s

Start bulk ti me

13.25/26.50 V

Bulk ret. volt. 12.80/25.60 V

Bulk retur n time

30 s

Abs. voltage 14.55/29.10 V

Max absorp. time

240 min

Min absorp. time 15 min

Return amps

6.0 %*I max

Float voltage 13.25/26.50 V

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NiCad

Bulk voltage

14.50/29.00 V

Max bulk time

480 min

Min bulk ti m e

120 s

Start bulk ti me

13.25/26.50 V

Bulk ret. volt.

13.50/27.00 V

Bulk retur n time

30 s

Abs. voltage

14.50/29.00 V

Max absorp. time

240 min

Min absorp. time

240 min

Return amps

6.0 %*I max

Float voltage

14,50/29.00 V

14. MasterBus

What is Master B us

All devices that are suitable for MasterBus are marked by the MasterBus sym bol

MasterBus is a fully decent ralized data network for comm unication between the differ ent Mastervolt
system devices. It is a CAN-bus based communication network which has proven itself as a rel iable
bus-system in automotive applications. MasterBus is used as power manag em ent system for all
connected devices, such as the inverter, battery charger, generator and many more. This gives the
possibil ity for communication between the connected devices, for i nstance to start the generator
when the batter ies are low.

MasterBus reduces complexity of electrical systems by using UTP patch c ables. All system
components are simply chained together. Therefore each device is equipped with two MasterBus
data ports. When two or more devices are connec ted to each other t hrough these data ports, they
form a local data network, called the MasterBus. The results are a reducti on of material costs as
only a few elect rical cables are needed and less installation time.

For central m onitoring and control of the connected devices Mastervolt offers a wide range of panels
which show full status information of your electric al system at a glance and a push of a button. Four
different panels are available, from the s m all Mastervision compatible 120 x 65 mm LCD screen up
to the full colour EasyView 5. All panels can be used for monitoring, contr ol and configurat ion of all
connected MasterBus equipment.

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MAC-PLUS

New devices can be added to the existing network in a very easy way by just extending t he network .
This gives t he M asterBus netw ork a high degree of flexibility for extended system configuration, not
only today, but in the future as w ell!

Mastervolt also offers several interf aces, making even n on-MasterBus devices suitable to operate i n
the MasterBus network.

How to set up a MasterB us network

Each device that is suitable for the MasterBus network is equi pped with two dat a ports. W hen two or
more devices are connected to each other through these ports, they form a loc al data network,
called the MasterBus.

Keep the follow ing rules in mind:

Connections between the devices are made by standard st raight UTP patc h cables.

Mastervolt can supply these cables. These cables are al so commonly availabl e at computer
supply stor es.

OK

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As with all high speed data netw orks, MasterBus needs a termi nating device on both ends of

the network.

The electri c power for the network comes fr om the connected devices.
At least one device in the network should have powering capabi lities (s ee specificati ons).
One powering device can power up to three non-powering devices.
As all poweri ng devices are galvanically i solated, multiple powering devices are allowed.

28

MAC-PLUS

Do not make ring networks.

Do not make T-connections in t he network.

MAC-PLUS

29

15. MasterBus: Control and Configuring of the Mac Plus

Monitoring

Value Meaning Default Adjustable range
Status

Device state

Shows the actual operation mode:

Standby / Charging / Alarm / Off

(read only)

Charge state

State of charge algorithm: Off / Bulk /

Absorption / Float / Const ant voltage

(read only)

Standby

Button to toggle the device state.

Note: in the s tandby mode, the Mac Plus
can be switched on again automatically.
This happens, for example, af ter a restart.

On On, Off

General

Input voltage

Voltage at the input

(read only)

Input curr ent

Current of t he input

(read only)

Output voltag e

Voltage at the output

(read only)

Output current

Current of t he output

(read only)

Bat. volt sense

Battery voltage measured by the battery

voltage sensor. If the Shunt device function

is enabled for a MasterShunt (MSH) or a
MLI-Ultra (BAT): voltage meas ured by the
MasterShunt / MLI-Ultra.

(read only)

Remote sw.
input

Remote input signal detect ed. Only

applicable wh en R emote input m ode is
active low or active high configured.

(read only)

Temperatures

Device

Device temperature

(read only)

Battery

Actual battery temperature measured by the
Battery temperature sensor.
If no battery temperature sensor is used or
when Battery is set to “Li-Ion”: “---“ is
shown.

If the Shunt device function i s enabled for a
MasterShunt (MSH): Batt ery temperature
measured by the M asterShunt is shown
(available in upcoming sof tware update).

(read only)

30

MAC-PLUS

Alarm

Value Meaning

Alarm status

Temperature high

Internal tem perature is t oo high

Bat. temp. hi gh Battery temperature is too high (> 55 ºC)

Bat. temp. l ow

Battery temperature is too low (< -20 ºC)

Input high Input voltage is too high

Input low

Input voltage is too low

Output high Output voltage is too high

Output low

Output voltag e is too low

OVP/OCP

Over Voltage Protection or Over Current
Protecti on shutdown

HW fault

Internal hardw are error

Cable loss hi gh Cable loss i s too high (>2.5 V)

Shunt mismatch

(available in upcoming
software update)

Setting for nom inal voltage ( 12 or 24 V) at

the MasterShunt or the nominal voltage of
the MLi Ultr a battery diff ers from nominal
output voltage of the Mac Plus, Check
battery voltage and settings of the
MasterShunt or voltage of the MLI-Ultra
battery.

Configuration

Value Meaning Factory setti n g Adjustable range
Device

Language

(available in upcoming
software update)

Language that i s displayed on
a monitoring de vice connect ed
to the MasterBus

English

EN, NL, DE, FR,
ES, IT, NO, SV, FI,
DA

Name

Device name (user defined).
The device will be represent ed
by this name thr oughout the
MasterBus network.

Plus 12/12

Plus 12/24
Plus 24/12
Plus 24/24

0-12 chars

Back to defaul t

Button to res et the Mac Plus to
default settings

Off On, Off

MAC-PLUS

31

Value

Meaning

Factory setti n g

Adjustable range

Remote sw. input

Mode

Acitve low: active if voltage

between 0-0.5 V, Active high:
active if voltage between 3-32
V, Not used: always active

Active high

Not used, Active
low, Acti ve high

Input threshold

Enabled

Enabled: input voltage

thresholds are active
Disabled: i nput voltage

thresholds are not active

Enabled Enabled, Di sabled

Enable voltag e Enable i nput voltage 12.50 / 25.00 V 8-16 / 16-32 V

Enable delay

Enable delay

2 s

0-300 s

Disable volt age Disable input voltage 12.00 / 24.00 V 8-16 / 16-32 V

Disable delay

Disable delay

300 s

0-300 s

Instant disable

Disable input voltage, no
delay

11.00 V 8-16 / 16-32 V

Sleep delay

Delay before t he M ac Plus

switches to sleepmode

300 s 0-3600 s

Charger

Battery type

Selection of pre-set charge
algorithm. Individual
adjustments are only possible
if “User def ined” is selected
here.

Flooded

Flooded, Gel,

AGM, Spiral, Li­Ion, Tract ion,
NiCad, Constant
voltage, User
defined,

Max output

Maximum output (charge)
current

50 A

30 A

0-50 A

0-30 A

Max input Maximum input current

50 A

30 A

0-50 A

0-30 A

Current ramp up

Charge current ramp up after

enabling the c harger.

5 A/s 0-50 A/s

Temp. compensat e

Temperature compensation
for charge vol tage

-0.030 V/°C

-0.060 V/°C

-0.1 - +0.1 V

Value

Meaning

Factory setti n g

Adjustable range

Shunt

Shunt device

(available in upcoming
software update)

Selection of the shunt device to
which the Mac P lus is
connected. Thi s can either be a

No connection

No connection,
MSH+Product
Name,

32

MAC-PLUS

MasterShunt (MSH) or a MLI-

Ultra battery (BAT). Enabl ing
this function allows

to: - Compensate the c harge
voltage for cable losses - Adjust
the actual Char ge state based
on the state of charge of the
battery - Compensate the
charge voltag e for deviating
battery temper atures
(MasterShunt only)

BAT+Product

Name

Bulk

Bulk voltage

Bulk voltage

14.25 / 28.50 V

8-15 / 16-30 V

Max. bulk ti m e Maximum bulk time 480 min 0-1440 min

Min. bulk t ime

Minimum bulk time

120 s

0-240 s

Start bulk ti me Start bulk timer 13.25 V 8-15 / 16-30 V

Bulk ret. volt

Return to bulk voltage

12.80 / 25.60 V

8-15 / 16-30 V

Bulk retur n time Return to bulk time delay 30 s 0-240 s

Absorption

Abs. voltage Absorpti on voltage 14.25 / 28.50 V 8-15 / 16-30 V

Max absorp. time

Maximum absorpt ion time

240 min

0-1440 min

Min absorp. time Minimum absor ption time 15 m in 0-240 min
Return amps

Return amps (% of maximum

charge current)

6 % 0-50 %

Float

Float voltage

Float voltage

13.25 / 26,50 V

8-15 / 16-30 V

Constant voltage

Constant voltage Constant output voltage 13.25 / 26.50 V 8-15 / 16-30 V

Input alarm

High alarm on

High input voltage alarm on

16.00 / 32.00 V

8-16 / 16-32 V

High alarm off

High input voltage alarm off

15.50 / 31.00 V

8-16 / 16-32 V

Low alarm off

Low input voltage alarm off

11.00 / 22.00 V

8-16 / 16-32 V

Low alarm on

Low input voltage alarm on

10.00 / 20.00 V

8-16 / 16-32 V

Low alarm delay

Low input alar m delay time

5 s

0-300 s

MAC-PLUS

33

Value

Meaning

Factory setting

Adjustable range

Output alarm

High alarm on

High output vol tage alarm on

15.25 / 30.50 V

8-16 / 16-32 V

High alarm off

High output vol tage alarm off

14.75 / 29.50 V

8-16 / 16-32 V

Low alarm off

High output vol tage alarm off

11.00 / 22.00 V

8-16 / 16-32 V

Low alarm on

High output vol tage alarm on

10.00 / 20.00 V

8-16 / 16-32 V

Low alarm delay

Low output alar m delay time

30 s

0-300 s

DIP switch

12345678

DIP switch state 0=off, 1=on

0

0,1

Event source

(available in upcoming
software update)

Description

Off

Device state is Off

Standby

Device state is Standby

Charging

Device state is Charging

Error

Device state is Error

Bulk

State of char ge is Bulk

Absorption

State of charge is Absorption

Float

State of char ge is Float

Any alarm

Any of the alarms is triggered

Event command

Description

Standby

Command to switch on/off the M ac Plus. If the Mac Plus was switched off

by means of this event command, it will switc h on again when it com e out
of sleep mode.

Bulk

(available in upcoming
software update)

Command to start the Bulk state of charge

Absorption

(available in upcoming
software update)

Command to start the Absorption state of charge

Float

(available in upcoming
software update)

Command to start the Float state of charge

34

MAC-PLUS

MAC-PLUS

35

36

MAC-PLUS

Mastervolt B.V.
Snijdersber gw eg 93
1105 AN Amsterdam
The Netherlands

Tel.: [phone]
Email: [e-mail]
Web: www.mastervolt.com