Mastervolt CZONE Mac Plus Operating manual

Mac Plus
BI-DIRECTIONAL DC-DC CHARGER
48/12-50, 12/48-15, 48/24-30, 24/48-15
USER AND INSTALLATION MANUAL
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2
Mac Plus
48V Models – User and Installation Manual
TABLE OF CONTENTS
1. Safety Instructions.............................3
Warnings and symbols............................3
General ...................................................3
Explosive gases ......................................4
Warnings regarding the use of batteries..4
Warning regarding life support
applications ...........................................5
2. General Information...........................6
Use of this manual...................................6
Liability....................................................6
Warranty..................................................6
Disclaimer ...............................................6
Identification label....................................7
Correct disposal of this product...............7
3. Product Description...........................8
Dimensions..............................................9
Front panel............................................10
4. Installation Instructions ..................11
5. Placement and Mounting ................12
6. Connection.......................................13
Installation A – the Mac Plus as a Battery
charger................................................13
Installation B – the Mac Plus as a
stabilized DC power supply .................13
Remote switch input (pin 4)...................14
Battery temperature sensor (pins 5 & 6) 14
Voltage drop compensation (pins 1 & 2)15
Optional 'reverse charge direction'-switch
(pin 3)..................................................16
Adding the Mac Plus to a MasterBus
network................................................16
Adding the Mac Plus to a CZone
network................................................16
7. Configuration – DIP Switches .........17
8. Operation ..........................................19
LED indicators........................................19
Operating modes ...................................20
Bi-directional operation ..........................22
Flat battery support................................22
9. MasterBus.........................................23
What is MasterBus.................................23
MasterBus on the Mac Plus ...................23
Monitoring..........................................24
Alarm..................................................25
Configuration......................................25
Events................................................29
10. CZone.................................................31
What is CZone.......................................31
Adding the Mac Plus to a CZone
system configuration............................31
11.Trouble Shooting..............................35
12.Technical Specifications..................37
Mac Plus Specifications.........................37
CZone specifications..............................38
Battery settings......................................38
Characteristics.......................................39

Mac Plus 48V Models – User and Installation Manual
3
1. Safety Instructions
This chapter describes important safety and operating instructions for use of a Mac Plus in
residential, vehicle (RV) and marine applications.
READ AND SAVE THESE INSTRUCTIONS
Warnings and symbols
Safety instructions and warnings are marked in this manual and on the product by the following
pictograms:
CAUTION!
Special information, commands and prohibitions in order to prevent damage.
CAUTION!
The addition of this symbol to a caution indicates that the surface may be warm.
WARNING!
A WARNING refers to possible injury to the user or installer or significant material
damage to the Mac Plus if the installer / user does not (carefully) follow the stated
procedures.
General
1 Before using the Mac Plus, read all instructions and cautionary markings on the Mac Plus, the
batteries, and all appropriate sections of the manual.
2 To reduce the risk of electric shock – Do not expose the Mac Plus to rain, snow, spray,
moisture, excessive pollution and condensing circumstances. To reduce risk of fire hazard, do
not cover or obstruct the ventilation 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 recommended or sold by Mastervolt, may result in a
risk of fire, electric shock, or injury to persons.
4 The Mac Plus is designed to be permanently connected to a DC electrical system. Installation
of, and work on the Mac Plus, may be carried out only by a qualified, authorized and trained
technician or electrician, consistent with the locally applicable standards and regulations.
5 Make sure that all wiring is properly installed and in good electrical condition; and that wire size
is large enough for DC current rating of the Mac Plus. Check the wiring on a regular base, at
least once a year. Do not use the Mac Plus when the wiring is undersized or damaged.
Replace damaged wires immediately.
6 Do not operate the Mac Plus if it has received a sharp blow, been dropped, or otherwise
damaged in any way; take it to a qualified service technician.

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Mac Plus
48V Models – User and Installation Manual
7 Except for the connection compartment, the Mac Plus may not be opened or disassembled.
There are no serviceable parts inside the cabinet. Take it to a qualified, authorized and trained
service technician when service or repair is required. Incorrect reassembly may result in a risk
of electric shock or fire.
8 To reduce risk of electric shock, disconnect the Mac Plus from the DC electrical system before
attempting any maintenance or cleaning. Turning off controls will not reduce this risk.
9 The Mac Plus may not be used by children or by those who cannot read and understand the
manual if they are not supervised by a responsible person who can guarantee that the charger
is being used in a safe manner. Keep the charger away from children.
10 Short circuiting or reversing polarity will lead to serious damage to batteries, Mac Plus, wiring
as well as accessories. Fuses cannot prevent damage caused by reversed polarity and the
warranty will be void.
11 In case of fire, you must use the fire extinguisher which is appropriate for electrical equipment.
12 If applied in a marine application in the United States, external connections to the Mac Plus
shall comply with the United States Coast Guard Electrical Regulations (33CFR183,
Sub part I).
Explosive gases
1 WARNING – WORKING IN VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS.
BATTERIES GENERATE EXPLOSIVE GASES DURING NORMAL BATTERY OPERATION.
FOR THIS REASON, IT IS OF UTMOST IMPORTANCE THAT EACH TIME BEFORE USING
THE Mac Plus, YOU READ THIS MANUAL AND FOLLOW THE INSTRUCTIONS EXACTLY.
2 To reduce risk of battery explosion, follow these instructions and those published by battery
manufacturer and manufacturer of any equipment you intend to use in vicinity of the battery.
Review cautionary marking on these products.
3 DANGER: To reduce the risk of explosion – Never use the Mac Plus in situations where there
is danger of gas or dust explosion.
Warnings regarding the use of batteries
1 Someone should be within range of your voice or close enough to come to your aid when you
work near a battery.
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 working near
battery.
4 If battery acid contacts skin or clothing, wash immediately with soap and water. If acid enters
eye, immediately flood eye with running cold water for at least 10 minutes and get medical
attention immediately.
5 NEVER smoke or allow a spark or flame in vicinity of battery or engine.

Mac Plus 48V Models – User and Installation Manual
5
6 Do not short circuit batteries, as this may result in explosion and fire hazard! Be extra cautious
to reduce risk of dropping a metal tool onto a battery. It might spark or short-circuit battery or
other electrical part that may cause explosion.
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 the
like to metal, causing a severe burn.
8 Do not use Mac Plus for charging non-rechargeable 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 high 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 grounded terminal from battery first. Make
sure all accessories are off, so as not to cause an arc.
12 Be sure that the area around battery is well ventilated while battery is being charged. Refer to
the recommendations of the battery manufacturer.
13 Batteries are heavy! It may become a projectile if it is involved in an accident! Ensure adequate
and sure mounting and always use suitable handling equipment for transportation.
Warning regarding life support applications
Do not use the Mac Plus for applications in any medical equipment intended for use as a
component of a life support system. For this type of use a specific written agreement between the
customer and Mastervolt is required.

6
Mac Plus
48V Models – User and Installation Manual
2. General Information
Use of this manual
This manual serves as a guideline for the safe and effective operation and maintenance of the
following Mac Plus models:
Product code Model
81203105 Mac Plus 48/12-50
81203205 Mac Plus 12/48-15
81203305 Mac Plus 48/24-30
81203405 Mac Plus 24/48-15
These models are further referred to as “Mac Plus”.
Liability
Mastervolt can accept no liability for:
•Consequential damage resulting from the use of the Mac Plus.
•Possible errors in the included manual and the consequences of these.
•Use that is inconsistent with the purpose of the product.
Warranty
The Mastervolt product warranty covers the Mac Plus for the first two years after the purchase date,
on the condition that the product is installed and used according to the instructions in this manual.
Installation or use that do not comply with these instructions may result in under performance,
damage or failure of the product and may void this warranty. The warranty is limited to the cost of
repair and/or replacement of the product. Costs of labor or shipping are not covered by this
warranty.
Disclaimer
Our products are subject to continual development and improvement. Therefore, additions or modifi-
cations to the products may cause changes to the technical data and functional specifications. No
rights can be derived from this document. Please consult our most current Terms & Conditions of
Sale.

Mac Plus 48V Models – User and Installation Manual
7
Identification label
Important technical information required for service, maintenance & secondary delivery of parts can
be derived from the identification label. The following picture is only an example!
(Serial number R221
A
1000 with device hardware version
A
)
CAUTION!
Never remove the identification label. This will void the warranty.
Correct disposal of this product
This product is designed and manufactured with high quality materials and components,
which can be recycled and reused.
Act according to your local rules and do not dispose
of your old
products with your normal household waste. The correct disposal of your old
product will help prevent potential negative consequences to the environment and
human health.

8
Mac Plus
48V Models – User and Installation Manual
3. Product Description
The Mac Plus charger converts a DC (battery) voltage to a regulated DC voltage. The left side is the
high side (36/48V) and the right side is the low side (12/24V). The Mac Plus can use each side as
input or output. The default direction of the current flow is indicated by the product name. So a Mac
Plus 48/12-50 uses the 48V as input and the 12V as output. Selection of the direction of the current
flow is controlled through MasterBus event configuration, CZone circuit configuration, or a remote
switch. Reversing the charge direction is typically used for boosting the starter battery.
Application examples:
•situations where the electrical power system voltage is 48V but the loads are still 12V
•to charge a 48V lithium service bank, while driving/boating
•to charge a 12V starter battery, while connected to the grid
The Mac Plus can be used as:
•a 3-Step+ battery charger or
•a stabilized DC power supply.
The Mac Plus can only be used in installations with a negative ground.

Mac Plus 48V Models – User and Installation Manual
9
Dimensions
146 mm [5.7"]
198 mm [7.8"]
255 mm [10"]
66 mm [2.6"]
165 mm [6.5"]

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Mac Plus
48V Models – User and Installation Manual
Front panel
1
3
Front panel
1 Status LED (2x)
2
+
Low side (12/24V)
3 Ground
4 +High side (36/48V)
5 MasterBus/CZone connection (2x)
6 DIP switches
7 Accessories connector
Pin 1: +battery voltage sense input
Pin 2: -battery voltage sense input
Pin 3: change the charge direction trigger
Pin 4: remote switch input
Pin 5-6: battery temperature sensor input
2
4
5
6
7

Mac Plus 48V Models – User and Installation Manual
11
4. Installation Instructions
In addition to the Mac Plus the delivery includes:
•Battery temperature sensor;
•Mastervolt-CZone drop cable (1m) ;
•MasterBus Terminator;
•User and installation manual.
Installation steps:
1 Place and mount the Mac Plus, see chapter 5;
2 Connect the Mac Plus, see chapter 6;
3 Configure the Mac Plus, see chapters 7 and 9 or 10.
CAUTION
Read the entire manual before installing the Mac Plus. Keep the manual at a safe
location for future reference.
•Operating temperature range: -20 up to +60 ºC, >40 ºC derating power
[-4 up to +140 ºF, >104 ºF 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 obstruction of the airflow is prevented. This device
requires a minimum of 10 cm (4”) of clearance on every side.
•Do not mount the Mac Plus straight above batteries that might release corrosive sulphur fumes.
•Be sure that the output of the supplying source is switched off during installation. Also be sure
that no load is connected to the batteries during installation, to prevent hazardous situations.
•Use cables with an appropriate size, see the following table.
Recommended wire sizes DC input/output
Model
Minimum wire size high side
Minimum wire size low side *
48/12-50 6 mm2[AWG 9] 16 mm2[AWG 6]
12/48-15 6 mm2[AWG 9] 16 mm2[AWG 6]
48/24-30 6 mm2[AWG 9] 10 mm2[AWG 7]
24/48-15 6 mm2[AWG 9] 10 mm2[AWG 7]
Min. 3 Nm – max. 5 Nm
* If bi-directionality is used, both sides
can be input and output. In that case,
select one size bigger for the low side
wire size.

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Mac Plus
48V Models – User and Installation Manual
5. Placement and Mounting
Mount the Mac Plus with four M5 screws to a solid flat surface.
CAUTION!
As the Mac Plus may become warm, ensure that the Mac Plus is at least 10 cm (4”)
away from any other objects.

Mac Plus 48V Models – User and Installation Manual
13
6. Connection
Be aware that to keep the drawings clear and easy to read, cables have been drawn directly to the
batteries. However, we advise to use busbars to distribute power. Busbars are not only safer, but
they also make installation and maintenance easier. Use properly sized fuses and wiring!
Installation A – the Mac Plus as a Battery charger
This schematic illustrates the general placement of a Mac Plus in a circuit.
* Lithium-ion batteries do not require the external temperature sensor.
Installation B – the Mac Plus as a stabilized DC power supply
Battery 1
Battery 2
LOAD
Battery
LOAD

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Mac Plus
48V Models – User and Installation Manual
Remote switch input (pin 4)
The Mac Plus has no on/off switch. If required, a remote switch may be used. The remote switch
input (pin 4 of the Accessories connector) can be used to activate the battery charger. In a vehicle
application, it is recommended to connect the engine run signal. This way, the charger is used when
the engine is running and the alternator is charging. The engine run signal can be provided in
different ways. Use 0.5 mm2or 0.75 mm2[18 or 20 AWG] wire for the connection. Torque: 0.34 Nm
[3.0 Lb.In]. For details contact your vehicle distributor.
The remote input accepts two different enable levels:
•active low, connect to ground (between 0 and 0.5 V)
•active high, connect to + battery voltage (between 3 and 65 V)
Active low means active when input is low. Active high means active when input is high.
The remote switch input configuration can be done by DIP switch (see chapter 7) or by MasterBus
(see chapter 9) or by CZone (see chapter 10).
Battery temperature sensor (pins 5 & 6)
By installing the Mastervolt battery temperature sensor (included), the charge voltages are
automatically adapted for deviating temperatures. When the battery temperature is low, the charge
voltage increases. In case the battery temperature is high, the charge voltage is decreased. This will
extend the life of your battery.
For a 24 V battery charger, multiply the
voltages by two. For a 36 V charger,
multiply by three. For a 48V system,
multiply the voltages by four.
Notes: - Temperature compensated
charging does not prevent
the batteries from
overcharging situations.
- Lithium-ion batteries do not
require the external
temperature sensor or
temperature compensation!
Figure 1. Temperature compensated charging

Mac Plus 48V Models – User and Installation Manual
15
Voltage drop compensation (pins 1 & 2)
The Mac Plus can compensate cable losses. For this purpose, the Mac Plus is equipped with
terminals for voltage sense wires. Use 0,75 mm2 [AWG 18], preferably red and black wire and protect
these with 2 A fuses slow blow. Pay close attention to the polarity of the wires.
In order to accurately measure the battery voltage, connect the voltage sense wires as close to the
battery poles as possible. The positive and negative voltage sense wires must be connected. Cable
losses will be compensated up to a maximum of 0.55 V.
Battery 1
Battery 2
In our example, battery 2
is the service battery.
Note that temperature
compensation is only
supported in the default
direction of the current
flow.
Battery 1
Battery
2
In our example, battery 2
is the service battery.
Note that voltage
compensation is only
supported in the default
direction of the current
flow.

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Mac Plus
48V Models – User and Installation Manual
Optional 'reverse charge direction'-switch (pin 3)
Use pin 3 on the accessories connector, to connect a latching switch to toggle the direction of the
current flow. The maximum voltage to trigger pin 3 is <65V but the switching point is at 5V. Use 0.5
mm2or 0.75 mm2[18 or 20 AWG] wire for the connection. Torque: 0.34 Nm [3.0 Lb.In].
The active LED indicates the direction of the current flow.
Adding the Mac Plus to a MasterBus network
Precondition: This section assumes that a MasterBus network is already installed.
1. Disconnect a MasterBus cable or Terminator from the closest MasterBus device and
connect it to the Mac Plus.
2. Connect the new MasterBus cable to the other MasterBus device and then connect to the
Mac Plus.
Adding the Mac Plus to a CZone network
Precondition: This section assumes that a CZone backbone is already installed.
1. Disconnect the backbone at the closest backbone connection and add in a tee connector.
2. Reconnect the backbone connection(s) with the new tee connector in place.
3. Connect the RJ45 Mastervolt-CZone drop cable to the black coupler on the tee and then
connect to the Mac Plus.
EXTERNAL
SWITCH
In our example, the
required voltage
comes from the high
side. This could also
come from an external
source.
0 = 0-5V
1 = 5-65V

Mac Plus 48V Models – User and Installation Manual
17
7. Configuration – DIP Switches
The Mac Plus settings can be adjusted in two ways:
•By means of DIP switches;
•From a monitoring panel, for example the EasyView 5 (MasterBus) or the Touch 10
(CZone), or from a computer with MasterAdjust or the CZone Configuration Tool. Some
settings can only be changed in this way.
This chapter only describes the DIP switch settings. For advanced settings in a MasterBus network,
see chapter 9. For advanced settings in a CZone network, see chapter 10.
CAUTION!
Incorrect settings of the
Mac Plus can cause serious damage to your batteries and/or
the connected load! Adjustments of settings may be undertaken by
authorized
personnel only!
Use a small screwdriver to carefully set the required
settings. You
may need to remove the cables (or
Terminator) to be able to access the DIP switches.
In a CZone network, set DIP switches 1 and 2 to OFF. DIP switches 3 to 10 must match the unique
address used in the CZone network. At least one of DIP switches 3 to 10 must be ON.
Note: Setting all DIP switches to the OFF position will reset the Mac Plus to factory settings and
erase all related settings in the configuration file.
In a MasterBus network, set DIP switches 1 and 2 to ON. Use the other DIP switches for charger
and battery settings. For an overview of the various DIP switch settings, see the following three
tables, where a 0 indicates OFF or and a 1 indicates ON or .
Note: DIP switch settings overrule MasterBus settings. If DIP switches are not in their default
setting, the corresponding MasterBus setting is grayed out.
If a DIP switch is set back to its original setting, the corresponding setting switches back to
its default value. For example: in MasterAdjust, battery type Gel was selected. Then DIP
switch 3 was set to ON, to select battery type MLI. When DIP switch 3 is set back to OFF,
the battery type will be Flooded; the default value.
DIP switch 1
Communication network selection
0
CZone
1
MasterBus

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Mac Plus
48V Models – User and Installation Manual
DIP switch 2
MasterBus communication
0
Smart on; no MasterBus communication in sleep mode (no load <2Ma)
1
MasterBus communication always on, provided there is enough input power.
In Sleep mode, no communication <1mA
In Standy, but still communicating <10mA
DIP switch
Battery type
3
4
5
0
0
0
Follow MasterBus setting, see chapter 9. Default setting: Flooded battery
0
0
1
Flooded
0
1
0
AGM
0
1
1
Gel
1
0
0
Lithium-Ion (MLI)
1
1
1
Constant voltage (13.25 V*)
DIP switch
Charger on conditions Typical use
6
7
8
0
0
0
MasterBus settings apply, see chapter 9.
Default setting: Remote switch input ‘active
high’ and input voltage greater than enable
voltage setpoint (12.50 V*)
Default setting.
Recommended setting for
vehicle with proper engine
run signal
0
0
1
Always on (Remote switch input not used)
When the battery charger
must be always active
0
1
0
Remote switch input ‘active low’
Enable the battery charger
by external operating signal
0
1
1
Remote switch input ‘active high’
Enable the battery charger
by external operating signal
1
0
0
Remote switch input ‘active low’ and input
voltage greater than enable voltage setpoint
(12.50 V*)
Recommended setting for
vehicle with proper engine
run signal
1
0
1
Remote switch input ‘active high’ and input
voltage greater than enable voltage setpoint
(12.50 V*)
Recommended setting for
vehicle with proper engine
run signal
1
1
0
Input voltage greater than enable voltage
setpoint (13.50 V*)
(Remote switch input not used)
Higher enable voltage
setpoint. Setting for vehicle
without engine run signal
* For a 24 V battery charger, multiply the voltages by two. For a 36 V charger, multiply by three. For
a 48 V charger, multiply by four.
DIP switch 9
High side behavior
0
High side is nominal 48 V (default)
1
High side is nominal 36 V
DIP switch 10 is reserved for future use.

Mac Plus 48V Models – User and Installation Manual
19
8. Operation
The Mac Plus has no on/off switch. If required, a remote switch may be used. See page 14.
LED indicators
Use the following table to understand the meaning of the LED signals.
LED color
LED indication
Meaning
Green
Solid
On
Normal operation.
The Mac Plus is in charging mode if it
meets the switch-on conditions (see DIP
switch/ MasterBus/CZone settings)
Blue
Slow blinking
Sleep (low
no-load
power
consumption)
Normal operation.
The Mac Plus enters sleep mode when the
sleep delay has passed, to reduce the no-
load power consumption.
Every 5 seconds (configurable in a
MasterBus network), the Mac Plus scans if
the configured battery charger meets the
switch-on conditions.
Blue
Solid
Standby
Normal operation
The Mac Plus goes to standby when it does
not meet the switch-on conditions (see DIP
switch /MasterBus/CZone settings).
Or
Switched off by the Standby button in a
MasterBus menu, or by a MasterBus event,
or by a CZone circuit.
Red-Blue
Fast blinking
Software
update
Update is in progress.
Red
Solid
Possible error
Analyze the situation.
The Mac Plus features two LED indicators. Either the left
arrow LED or the right arrow LED indicates the status of the
Mac Plus. The active LED indicates the direction of t
he
current flow.
This means that the high side is being charged
This means that the low side is being charged

20
Mac Plus
48V Models – User and Installation Manual
Operating modes
Note: To keep the drawings in this section easy to read, only the positive (+) cables have been
drawn. The alternator could also be a charger.
•Charger mode: When incoming DC power is available, both batteries will be charged.
•Bi-directional option: If the starter battery needs to be charged, the Mac Plus can reverse the
direction of the current flow.
SERVICE
BATTERY
STARTER
BATTERY
SERVICE
BATTERY
STARTER
BATTERY