®
ACM100
Alternating Current Monitor
User’s Manual
Revision 1.2
Copyright © 2012 Maretron, LLP All Rights Reserved
Maretron, LLP
9014 N. 23rd Ave #10
Phoenix, AZ 85021-7850
Maretron Manual Part #: M001701
Revision 1.2
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Table of Contents
1 Introduction ...........................................................................................................................1
1.1 Firmware Revision.................................................................................................... 1
1.2 ACM100 Features .................................................................................................... 1
1.3 Quick Install.............................................................................................................. 2
2 Installation.............................................................................................................................2
2.1 Unpacking the Box ................................................................................................... 2
2.2 Choosing a Mounting Location................................................................................. 2
2.3 Mounting the ACM100.............................................................................................. 3
2.4 Connecting the ACM100 .......................................................................................... 3
2.4.1 NMEA 2000® Connection............................................................................... 3
2.4.2 AC Sensor Connections ................................................................................ 4
2.4.3 Checking Connections................................................................................. 10
2.5 Configuring the ACM100 ........................................................................................ 10
2.5.1 Device Instance ........................................................................................... 10
2.5.2 AC Device Type........................................................................................... 10
2.5.3 AC Circuit Type............................................................................................ 11
2.5.4 Reset Total Energy Recorded...................................................................... 11
2.5.5 Advanced Configuration…........................................................................... 11
2.5.5.1 Device Priority................................................................................ 11
2.5.5.2 V,I,F Damping Period..................................................................... 11
2.5.5.4 Current Transformer A ................................................................... 11
2.5.5.5 Current Transformer B ................................................................... 12
2.5.6 NMEA 2000® PGN Enable/Disable.............................................................. 12
2.5.7 Restore Factory Defaults............................................................................. 12
3 Output Parameters..............................................................................................................12
3.1 Line-Specific and Line-to-Neutral Measurements................................................... 13
3.2 Line-to-Line Measurements.................................................................................... 13
5 Troubleshooting ..................................................................................................................14
6 Technical Specifications......................................................................................................15
7 Technical Support ...............................................................................................................16
8 Installation Template ...........................................................................................................17
9 Maretron (2 Year) Limited Warranty....................................................................................18
Table of Figures
Figure 1 – Mounting the ACM100.............................................................................................. 3
Figure 2 – NMEA 2000® Connector Face Views ....................................................................... 4
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Table of Appendices
Appendix A – NMEA 2000® Interfacing.................................................................................... A1
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1 Introduction
Congratulations on your purchase of the Maretron Alternating Current (AC) Monitor (ACM100).
Maretron has designed and built your ACM100 to the highest standards for years of
dependable and accurate service.
Maretron’s ACM100 is a device which monitors AC power sources and outputs information
about these sources onto the industry standard NMEA 2000® marine data network. ACM100
output information is then displayed with networked NMEA 2000® equipment such as the
Maretron DSM250 dedicated display or with NMEA 2000® compatible software such as
Maretron N2KView. The ACM100 can sense voltages up to 240VAC (line-to-neutral) and
currents up to 200A.
The Maretron ACM100 is designed to operate within the harsh demands of the marine
environment. However, no piece of marine electronic equipment can function properly unless
installed, configured, and maintained in the correct manner. Please read carefully and follow
these instructions for installation, configuration, and usage of the Maretron ACM100 in order to
ensure optimal performance.
1.1 Firmware Revision
This manual corresponds to ACM100 firmware revision 1.0.0.
1.2 ACM100 Features
The Maretron ACM100 has the following features.
• NMEA 2000® Interface
• Waterproof Connectors
• Sealed Waterproof Enclosure
• Opto-Isolated from NMEA 2000® Eliminating Potential Ground Loops
• Monitoring of busses carrying AC power and transmitting
o Voltage
o Frequency
• Monitoring AC Power Sources such as Utilities and Generators and transmitting:
o Voltage
o Current
o Frequency
o Real Power
o Reactive Power
o Apparent Power
o Power Factor
o Total Energy Imported
o Total Energy Exported
• Can be used in the following configurations
o 120VAC single phase
o 120/240VAC split-phase
o 208VAC Y Three-phase (208Y)
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o 230VAC single phase
o 380VAC Y Three-phase (380Y)
1.3 Quick Install
Installing the Maretron ACM100 involves the following five steps. Please refer to the individual
sections for additional details.
2 Installation
2.1 Unpacking the Box
When unpacking the box containing the Maretron ACM100, you should find the following
items:
1 – ACM100 – AC Monitor
1 – AC Current Transformer with 5 ft. (1.5m) long cable (Part # M000630)
1 – Parts Bag containing 4 Stainless Steel Mounting Screws
1 – ACM100 User’s Manual
1 – Warranty Registration Card
If any of these items are missing or damaged, please contact Maretron.
2.2 Choosing a Mounting Location
Please consider the following when choosing a mounting location.
1. The ACM100 is waterproof, so it can be mounted in a damp or dry location.
2. The orientation is not important, so the ACM100 can be mounted on a horizontal deck,
vertical bulkhead, or upside down if desired.
3. The ACM100 is temperature rated to 55°C (130°F), so it should be mounted away from
engines or engine rooms where the operating temperature exceeds the specified limit.
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2.3 Mounting the ACM100
Attach the ACM100 securely to the vessel using the included stainless steel mounting screws
containing methacrylate ester, such as Loctite Red (271), as they will cause stress cracking of
the plastic enclosure.
Figure 1 – Mounting the ACM100
2.4 Connecting the ACM100
The ACM100 requires two types of electrical connections: 1) the NMEA 2000® connection
2.4.1 NMEA 2000® Connection
The NMEA 2000® connector can be found on the side of the enclosure. The NMEA 2000®
NMEA 2000® network using a Maretron NMEA 2000® cable (or compatible cable) by
connecting the female end of the cable to the ACM100 (note the key on the male connector
and keyway on the female connector). Be sure the cable is connected securely and that the
collar on the cable connector is tightened firmly. Connect the other end of the cable (male) to
the NMEA 2000® network in the same manner. The ACM100 is designed such that you can
plug or unplug it from an NMEA 2000® network while the power to the network is connected or
disconnected. Please follow recommended practices for installing NMEA 2000® network
products.
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Figure 2 – NMEA 2000® Connector Face Views
2.4.2 AC Sensor Connections
The ACM100 sensor connections are made by connecting to the 12-pin terminal strip on the
top of the unit. First, remove the four screws at the corners of the unit detaching the splash
guard from the unit. On the bottom of the splash guard, you will find a label detailing the wire
connection to pin number assignments, which are repeated in the table below.
Pin #
Signal Name
Connection
1
Voltage Phase A Line
Voltage Phase B Line
Voltage Phase C Line
Voltage Phase A Neutral
Voltage Phase B Neutral
Voltage Phase C Neutral
Current Phase A Plus
Current Phase A Minus
Current Phase B Plus
Current Phase B Minus
Current Phase C Plus
Current Phase C Minus
VA
Line
2
3
VB
Line
VC
Line
4
VA
Neutral
5
VB
Neutral
6
VC
Neutral
7
IA+
IA-
8
9
IB+
IB-
10
11
12
IC+
IC-
WARNING: The voltages present on AC circuits can cause electrocution.
Before making any electrical connections to the ACM100, ensure that power is
removed from all AC circuits that will be connected to the ACM100. Only restore
AC power after all connections have been made to the ACM100 and the splash
guard has been re-installed.
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WARNING: If the supplied current transformer is placed around a wire carrying
AC current, then extremely high voltages can develop on the output leads of the
current transformer, with severe risk of electrocution. For safety, keep the output
leads of the current transformer(s) shorted or tied together until they are
connected to the proper terminals on the ACM100.
WARNING: User supplied voltage sense cables must be 18 gauge or larger,
have insulation rated to 600V, and must have the conductor connected to the
hot lead of the AC power source protected by a fuse rated at 3A or less (the
current consumed by the voltage sense circuit on the ACM100 is negligible, at
less than 10mA).
Before attempting to connect the ACM100 to the AC source, determine the type of system you
will be monitoring. The ACM100 supports the connection and monitoring of three different
2.4.2.1 Single-Phase (Phase A) Connection
Current
Transducer
Line (Phase A)
+
+
U.S.
120 Volts
60Hz
Europe
220 Volts
50Hz
AC Source
-
-
Neutral
ACM100 Screw Terminals
1
2
3
4
5
6
7
8
9 10 11 12
Figure 3 – Single-Phase (Single Line) Connection Diagram
Use the following instructions when you are connecting the ACM100 to a single-phase circuit
connected via one (hot) phase wire and one neutral wire. You will need to install one current
transformer and one voltage sense cable.
Step 1: De-energize the AC Source.
Step 2: The Current Transformer has black and white wires. Install the Current Transformer as
follows:
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a. Connect the black wire to pin 7 (IA+) on the ACM100
b. Connect the white wire to pin 8 (IA-) on the ACM100
c. Disconnect the hot wire from the AC power source and place it through the hole in
the Current Sensor such that the arrow on the Current Sensor points towards the AC
power source. Then, reattach the hot wire to the AC source.
Step 3: You must supply a cable for connecting the voltage sense pins on the ACM100 to the
AC source. For the purposes of these instructions, we will assume that the cable has one black
conductor and one white conductor. Install the voltage sense cable as follows:
a. Connect the white wire from one end of the Voltage Sense cable to pin 4 (VANeutral
on the ACM100.
)
b. Connect the white wire from the other end of the Voltage Sense cable to the neutral
wire of the AC source being monitored.
c. Connect the black wire from one end of the Voltage Sense cable to pin 1 (VALine) on
the ACM100
d. Connect the black wire from the other end of the Voltage Sense cable to a fuse
appropriately sized for the black wire (18 gauge wire minimum and 3 amp fuse or
less).
e. Connect the other end of the fuse to the AC source hot wire (the fuse should be
placed within 6 inches of the connection to the hot wire).
2.4.2.2 Single-Phase (Phase A, B) Connection
Current
Transformer
Line (Phase B)
Current
Transformer
Line (Phase A)
+
+
U.S.
120 Volts
60Hz
Europe
220 Volts
50Hz
-
-
Neutral
ACM100 Screw Terminals
1
2
3
4
5
6
7
8
9 10 11 12
Figure 4 – Single-Phase (Dual Line) Connection Diagram
Use the following instructions when you are connecting the ACM100 to a single-phase circuit
connected via two hot wires. You will need to install two current transformer and two user-
supplied voltage sense cables. The ACM100 comes with a single current transformer so you
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will need to purchase an optional current sensor (Part # M000630) for monitoring this type of
system.
Step 1: De-energize the AC Source.
Step 2: The Current Transformer has black and white wires. Install the Phase A Current
Transformer as follows:
a. Connect the black wire to pin 7 (IA+) on the ACM100
b. Connect the white wire to pin 8 (IA-) on the ACM100
c. Disconnect the Phase A hot wire from the AC power source and place it through the
hole in the Current Sensor such that the arrow on the Current Sensor points towards
the AC power source. Then, reattach the hot wire to the AC power source.
Step 3: Repeat step 2 for the Phase B Current Transformer as follows:
a. Connect the black wire to pin 9 (IB+) on the ACM100
b. Connect the white wire to pin 10 (IB-) on the ACM100
c. Disconnect the Phase B hot wire from the AC power source and place it through the
hole in the Current Sensor such that the arrow on the Current Sensor points towards
the AC power source. Then, reattach the hot wire to the AC power source.
Step 4: You must supply cables for connecting the voltage sense pins on the ACM100 to the
AC source. For the purposes of these instructions, we will assume that each cable has one
black conductor and one white conductor. Install the first voltage sense cable as follows:
a. Connect the white wire from one end of the first Voltage Sense cable to pin 4
(VANeutral) on the ACM100.
b. Connect the white wire from the other end of the first Voltage Sense cable to the
neutral wire of the AC source being monitored
c. Connect the black wire from one end of the first Voltage Sense cable to pin 1 (VALine
on the ACM100
)
d. Connect the black wire from the other end of the first Voltage Sense cable to a fuse
appropriately sized for the black wire (18 gauge wire minimum and 3 amp fuse or
less).
e. Connect the other end of the fuse to the AC source hot wire (the fuse should be
placed within 6 inches of the connection to the hot wire).
Step 5: Install the second Voltage Sense cable as follows:
a. Connect the white wire from one end of the second Voltage Sense cable to pin 5
(VBNeutral) on the ACM100.
b. Connect the white wire from the other end of the second Voltage Sense cable to the
neutral wire of the AC source being monitored.
c. Connect the black wire from one end of the second Voltage Sense cable to pin 2
(VBLine) on the ACM100
d. Connect the black wire from the other end of the second Voltage Sense cable to a
fuse appropriately sized for the black wire (18 gauge wire minimum and 3 amp fuse
or less).
e. Connect the other end of the fuse to the AC source hot wire (the fuse should be
placed within 6 inches of the connection to the hot wire).
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2.4.2.3 Three-Phase (Phase A, B, C) Connection
Current
Transducer
Line (Phase C)
Current
Transducer
Line (Phase B)
Current
Transducer
Line (Phase A)
+
+
U.S.
120 Volts
60Hz
Europe
220 Volts
50Hz
-
-
Neutral
ACM100 Screw Terminals
1
2
3
4
5
6
7
8
9 10 11 12
Figure 5 – Three-Phase Connection Diagram
Use the following instructions when you are connecting the ACM100 to a three-phase “Wye”
circuit connected via three hot wires and a single neutral (NOTE: Three-phase delta connected
circuits are not supported by the ACM100). You will need to install three current transformers
and three user-supplied voltage sense cables. The ACM100 comes with a single current
transformer so you will need to purchase two optional current sensors (Part # PCT-1000-101-
03) for monitoring this type of system.
Step 1: De-energize the AC Source.
Step 2: The Current Transformer has black and white wires. Install the first Current
Transformer as follows:
a. Connect the black wire to pin 7 (IA+) on the ACM100
b. Connect the white wire to pin 8 (IA-) on the ACM100
c. Disconnect the Phase A hot wire from the AC power source and place it through the
hole in the Current Sensor such that the arrow on the Current Sensor points towards
the AC power source. Then, reattach the Phase A hot wire to the AC power source.
Step 3: Install the second Current Transformer as follows:
a. Connect the black wire to pin 9 (IB+) on the ACM100
b. Connect the white wire to pin 10 (IB-) on the ACM100
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c. Disconnect the Phase B hot wire from the AC power source and place it through the
hole in the Current Sensor such that the arrow on the Current Sensor points towards
the AC power source. Then, reattach the Phase B hot wire to the AC power source.
Step 4: Install the third Current Transformer as follows:
a. Connect the black wire to pin 11 (IC+) on the ACM100
b. Connect the white wire to pin 12 (IC-) on the ACM100
c. Disconnect the Phase C hot wire from the AC power source and place it through the
hole in the Current Sensor such that the arrow on the Current Sensor points towards
the AC power source. Then, reattach the Phase C hot wire to the AC power source.
Step 5: You must supply a cable for connecting the voltage sense pins on the ACM100 to the
AC source. For the purposes of these instructions, we will assume that the cable has one black
conductor and one white conductor. Install the voltage sense cable as follows:
a. Connect the white wire from one end of the Voltage Sense cable to pin 4 (VANeutral
on the ACM100.
)
b. Connect the white wire from the other end of the Voltage Sense cable to the neutral
wire of the AC source being monitored.
c. Connect the black wire from one end of the Voltage Sense cable to pin 1 (VALine) on
the ACM100
d. Connect the black wire from the other end of the Voltage Sense cable to a fuse
appropriately sized for the black wire (18 gauge wire minimum and 3 amp fuse or
less).
e. Connect the other end of the fuse to the AC source hot wire (the fuse should be
placed within 6 inches of the connection to the hot wire).
Step 6: Install the second Voltage Sense cable as follows:
a. Connect the white wire from one end of the second Voltage Sense cable to pin 5
(VBNeutral) on the ACM100.
b. Connect the white wire from the other end of the second Voltage Sense cable to the
neutral wire of the AC source being monitored.
c. Connect the black wire from one end of the second Voltage Sense cable to pin 2
(VBLine) on the ACM100
d. Connect the black wire from the other end of the second Voltage Sense cable to a
fuse appropriately sized for the black wire (18 gauge wire minimum and 3 amp fuse
or less).
e. Connect the other end of the fuse to the AC source hot wire (the fuse should be
placed within 6 inches of the connection to the hot wire).
Step 7: Install the third Voltage Sense cable as follows:
a. Connect the white wire from one end of the second Voltage Sense cable to pin 6
(VCNeutral) on the ACM100.
b. Connect the white wire from the other end of the second Voltage Sense cable to the
neutral wire of the AC source being monitored.
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c. Connect the black wire from one end of the second Voltage Sense cable to pin 3
(VCLine) on the ACM100
d. Connect the black wire from the other end of the second Voltage Sense cable to a
fuse appropriately sized for the black wire (18 gauge wire minimum and 3 amp fuse
or less).
e. Connect the other end of the fuse to the AC source hot wire (the fuse should be
placed within 6 inches of the connection to the hot wire).
2.4.3 Checking Connections
Once the NMEA 2000® connection, Current Sensor(s), and Voltage Sense connection(s) to the
ACM100 have been completed, restore power to the monitored AC source and check to see
that information is being properly transmitted by observing an appropriate NMEA 2000®
2.5 Configuring the ACM100
The ACM100 will transmit data over the NMEA 2000 network as it is shipped from the factory;
however, it may require configuration, depending on the type of AC source being monitored.
There are several configurable items within the ACM100, which are detailed in the remainder
of this section.
You configure the ACM100 using a Maretron DSM250 display or other NMEA 2000® display
unit that is capable of configuring the ACM100. Please refer to the Maretron DSM250 User’s
Manual for details.
2.5.1 Device Instance
NMEA 2000® provides a unique AC power instance for each AC power source on a vessel.
This value should be programmed in each ACM100 so that each ACM100 is associated with a
unique device instance number. The default instance number is 0, which is used to indicate the
first ACM100 that is hooked to the network. Subsequent ACM100s connected to the network
would be numbered 1, 2, and so on.
2.5.2 AC Device Type
You must configure the ACM100 as to what type of AC source it is monitoring. The allowable
values for this parameter are as follows:
• “Generator” (default) – use this value when you are monitoring the output of a genset.
• “Utility” – use this value when you are monitoring shore power
• “Bus” – use this value if you are monitoring power flowing across a cable that is not
located directly at the output of a genset or a shore power connection (e.g., an AC
selection switch might have as an input the shore power and another input from the
genset, connecting the ACM100 at the output of the AC selection switch would require
the ACM100 to be configured as “Bus”.
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2.5.3 AC Circuit Type
You must configure the ACM100 as to what type of AC circuit connection it is monitoring. The
allowable values for this parameter are as follows:
• Single-Phase (Phase A) – use this value when power is connected via a single hot wire
and a single neutral wire (a typical 110VAC connection in the US).
• Single-Phase (Phase A, B) – use this value when power is connected via the two hot
wires and single neutral wire from a single phase of a transformer (a typical 220VAC
connection in the US).
• Three-Phase (Phase A, B, C) – use this value when power is connected via the three
hot wires and single neutral wire from a three-phase “Wye” connected circuit.
2.5.4 Reset Total Energy Recorded
The ACM100 accumulates the total energy imported from a Utility and exported from a
generator. Select this option to zero the total energy accumulated readings in the ACM100.
2.5.5 Advanced Configuration…
Certain parameters do not normally need to be set in order for normal operation, but are
included in an advanced configuration section for use in special situations.
2.5.5.1 Device Priority
If you have only one ACM100 on a particular AC power source, you should leave the priority
selection at the default value of 0. However, NMEA 2000® can provide a unique priority for
allowing multiple, redundant sensors for a single AC power source on a vessel. Redundant
sensors for a single AC power source should have the same device instance number and
different priority selections. If you have redundant sensors on a single AC power source, you
should leave the primary sensor at its default priority value of 0, and program the secondary
sensor with a priority value of 1.
2.5.5.2 V,I,F Damping Period
If you feel that the monitored Voltage, Current, and Frequency parameters are changing too
quickly or too slowly on the display, you can adjust the damping that is applied to the output
readings by adjusting this parameter. The default damping period is 0.5 seconds. You may
change it to a value in the range of 0.2 seconds to 10 seconds.
2.5.5.3 Power Damping Period
If you feel that the monitored Power parameters are changing too quickly or too slowly on the
display, you can adjust the damping that is applied to the output readings by adjusting this
parameter. The default damping period is 5 seconds. You may change it to a value in the
range of 0.2 seconds to 10 seconds.
2.5.5.4 Current Transformer A
If you notice that the current of phase A is negative when it should be positive, or vice-versa,
then the current transformer has been installed backwards. If this happens, then instead of
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reconnecting the current transformer, you may change the value of this parameter from the
default value of “Normal Install” to “Inverse Install” to correct for this.
2.5.5.5 Current Transformer B
If you notice that the current of phase B is negative when it should be positive, or vice-versa,
then the current transformer has been installed backwards. If this happens, then instead of
reconnecting the current transformer, you may change the value of this parameter from the
default value of “Normal Install” to “Inverse Install” to correct for this.
2.5.5.6 Current Transformer C
If you notice that the current of phase C is negative when it should be positive, or vice-versa,
then the current transformer has been installed backwards. If this happens, then instead of
reconnecting the current transformer, you may change the value of this parameter from the
default value of “Normal Install” to “Inverse Install” to correct for this.
2.5.6 NMEA 2000® PGN Enable/Disable
The ACM100 is capable of transmitting many different kinds of NMEA 2000® messages (or
PGNs) associated with AC power sources. You may individually enable or disable each of
these messages. You may also change the rate of transmission of each of these messages if
desired.
2.5.7 Restore Factory Defaults
Selecting this configuration option causes all stored parameters in the ACM100 to be reset to
the values they contained when the unit was manufactured.
3 Output Parameters
The ACM100 outputs a variety of information about the AC power source onto the NMEA 2000
network. The tables below detail which measurements are made available on the bus for the
different combinations of different AC source types and circuit types which may be selected.
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3.1 Line-Specific and Line-to-Neutral Measurements
AC Source Type
Available Data
Parameter
Bus
Generator
Utility
Average Phase A Phase B Phase C
Line-Neutral AC
RMS Voltage
AC RMS Current
AC Frequency
Real Power
Apparent Power
Reactive Power
Power Factor
Total kW Hours
Export
9
9
9
9
9
9
91
92
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
91
91
91
91
91
91
92
92
92
92
92
92
9
9
9
9
9
9
Total kW Hours
Import
Notes:
1.
2.
Available only if circuit type has been set to “Single-Phase (Phase A,B)” or
“Three-Phase (Phase A,B,C)”
Available only if circuit type has been set to “Three-Phase (Phase A,B,C)”
3.2 Line-to-Line Measurements
AC Source Type
Parameter
Available Data
Phase A Phase B Phase C
to to to
Phase B Phase C Phase A
Bus
Generator
Utility
Average
Line-Line AC RMS
Voltage
9
9
9
9
91 92 92
Notes:
1.
2.
Available only if circuit type has been set to “Single-Phase (Phase A,B)” or
“Three-Phase (Phase A,B,C)”
Available only if circuit type has been set to “Three-Phase (Phase A,B,C)”
4 Maintenance
Regular maintenance is important to ensure continued proper operation of the Maretron
ACM100. Perform the following tasks periodically:
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• Clean the unit with a soft cloth. Do not use chemical cleaners as they may remove
paint or markings or may corrode the ACM100 enclosure or seals. Do not use any
cleaners containing acetone, as they will deteriorate the plastic enclosure.
• Ensure that the unit is mounted securely and cannot be moved relative to the mounting
surface. If the unit is loose, tighten the mounting screws.
• Check the security of the cable connected to the NMEA 2000® connector, and tighten if
necessary.
• Check the security of all of the current sensor connections and voltage sensor
connections on the top of the unit and tighten if necessary.
5 Troubleshooting
If you notice unexpected operation of the Maretron ACM100, follow the troubleshooting
procedures in this section to remedy simple problems. If these steps do not solve your
information).
Symptom
Troubleshooting Procedure
No AC power data
visible on NMEA 2000®
network.
Ensure that the ACM100 is properly connected to the NMEA 2000®
network.
Ensure that the current transformers and voltage sense cables are
properly connected to the ACM100.
Ensure that the ACM100 has the appropriate NMEA 2000® PGNs
Exported power is
increasing when it
shouldn’t be
The current transformer(s) are installed backwards. Either 1)
reinstall the current transformers in the opposite direction of 2)
configure the ACM100 to recognize the reversed installation as
Imported power in not
increasing when it
should be
Currents are showing as
negative values when
they should be showing
as positive values
Power readings are not
what I expect
Page 14
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6 Technical Specifications
As Maretron is constantly improving its products, all specifications are subject to change
without notice. Maretron products are designed to be accurate and reliable; however, they
should be used only as aids to navigation and not as a replacement for traditional navigation
aids and techniques.
Certifications
Parameter
Comment
NMEA 2000®
Level A
Maritime Navigation and Radiocommunication Equipment & Systems
FCC and CE Mark
IEC 60945
Electromagnetic Compatibility
NMEA 2000® Parameter Group Numbers (PGNs)
Description
PGN #
65001
65002
65003
65004
65005
65006
65007
65008
65009
65010
65011
65012
65013
65014
65015
65016
65017
65018
65019
65020
65021
65022
65023
65024
65025
65026
65027
65028
65029
65030
PGN Name
Default Rate
Periodic Data PGNs
Bus #1 Phase C Basic AC Quantities
Bus #1 Phase B Basic AC Quantities
Bus #1 Phase A Basic AC Quantities
Bus #1 Average Basic AC Quantities
Utility Total AC Energy
Utility Phase C AC Reactive Power
Utility Phase C AC Power
Utility Phase C AC Basic Quantities
Utility Phase B AC Reactive Power
Utility Phase B AC Power
Utility Phase B AC Basic Quantities
Utility Phase A AC Reactive Power
Utility Phase A AC Power
Utility Phase A AC Basic Quantities
Utility Total AC Reactive Power
Utility Total AC Power
Utility Average Basic AC Quantities
Generator Total AC Energy
Generator Phase C AC Reactive Power
Generator Phase C AC Power
Generator Phase C AC Basic Quantities
Generator Phase B AC Reactive Power
Generator Phase B AC Power
Generator Phase B AC Basic Quantities
Generator Phase A AC Reactive Power
Generator Phase A AC Power
Generator Phase A AC Basic Quantities
Generator Total AC Reactive Power
Generator Total AC Power
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
10 times/second
N/A
Generator Average Basic AC Quantities
Response to Requested PGNs
Protocol PGNs
126464 PGN List (Transmit and Receive)
126996 Product Information
126998 Configuration Information
059392 ISO Acknowledge
059904 ISO Request
N/A
N/A
N/A
N/A
060928 ISO Address Claim
065240 ISO Address Command
126208 NMEA
N/A
N/A
N/A
Maretron Proprietary PGNs
128720 Configuration
N/A
Revision 1.2
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ACM100 User’s Manual
Electrical
Parameter
Value
0-240 VAC
0-200 A
5 to 36 Volts
100 mA
2
Comment
120,120/240,240,208Y,380Y configurations
With supplied current transformer
DC Voltage
Sensed Voltage
Sensed Current
Operating Voltage
Power Consumption
Load Equivalence Number (LEN)
Reverse Battery Protection
Load Dump Protection
NMEA 2000® Interface
NMEA 2000® Spec. (1LEN = 50 mA)
Indefinitely
Yes
Yes
Energy Rated per SAE J1113
Mechanical
Parameter
Size
Value
3.50” x 4.20” x 2.03”
Comment
Including Flanges for Mounting
(88.9mm x 106.7mm x 51.6mm)
Weight
13 oz. (368.5 g)
Environmental
Parameter
Value
Exposed
IP64
IEC 60954 Classification
Degree of Protection
Operating Temperature
Storage Temperature
Relative Humidity
-25°C to 55°C
-40°C to 70°C
93%RH @40° per IEC60945-8.2
Vibration
Solar Radiation
2-13.2Hz @ ±1mm, 13.2-100Hz @ 7m/s2 per IEC 60945-8.7
Ultraviolet B, A, Visible, and Infrared per IEC 60945-8.10
Corrosion (Salt Mist)
Electromagnetic Emission
Electromagnetic Immunity
Safety Precautions
4 times 7days @ 40°C, 95%RH after 2 hour Salt Spray Per IEC 60945-8.12
Conducted and Radiated Emission per IEC 60945-9
Conducted, Radiated, Supply, and ESD per IEC 60945-10
Dangerous Voltage, Electromagnetic Radio Frequency per IEC 60945-12
7 Technical Support
If you require technical support for Maretron products, you can reach us in any of the following
ways:
Telephone: 1-866-550-9100
Fax: 1-602-861-1777
E-mail: [email protected]
Mail: Maretron, LLC
Attn: Technical Support
9014 N. 23rd Ave Suite 10
Phoenix, AZ 85021 USA
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8 Installation Template
Please check the dimensions before using the following diagram as a template for drilling the
mounting holes because the printing process may have distorted the dimensions.
Figure 6 – Mounting Surface Template
Revision 1.2
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ACM100 User’s Manual
9 Maretron (2 Year) Limited Warranty
Maretron warrants the ACM100 to be free from defects in materials and workmanship for two (2) years from the
date of original purchase. If within the applicable period any such products shall be proved to Maretron’s
satisfaction to fail to meet the above limited warranty, such products shall be repaired or replaced at Maretron’s
option. Purchaser's exclusive remedy and Maretron’s sole obligation hereunder, provided product is returned
pursuant to the return requirements below, shall be limited to the repair or replacement, at Maretron’s option, of
any product not meeting the above limited warranty and which is returned to Maretron; or if Maretron is unable to
deliver a replacement that is free from defects in materials or workmanship, Purchaser’s payment for such
product will be refunded. Maretron assumes no liability whatsoever for expenses of removing any defective
product or part or for installing the repaired product or part or a replacement therefore or for any loss or damage
to equipment in connection with which Maretron’s products or parts shall be used. With respect to products not
manufactured by Maretron, Maretron’s warranty obligation shall in all respects conform to and be limited to the
warranty actually extended to Maretron by its supplier. The foregoing warranties shall not apply with respect to
products subjected to negligence, misuse, misapplication, accident, damages by circumstances beyond
Maretron’s control, to improper installation, operation, maintenance, or storage, or to other than normal use or
service.
THE FOREGOING WARRANTIES ARE EXPRESSLY IN LIEU OF AND EXCLUDES ALL OTHER EXPRESS OR
IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND OF FITNESS FOR A PARTICULAR PURPOSE.
Statements made by any person, including representatives of Maretron, which are inconsistent or in conflict with
the terms of this Limited Warranty, shall not be binding upon Maretron unless reduced to writing and approved by
an officer of Maretron.
IN NO CASE WILL MARETRON BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, DAMAGES
FOR LOSS OF USE, LOSS OF ANTICIPATED PROFITS OR SAVINGS, OR ANY OTHER LOSS INCURRED
BECAUSE OF INTERRUPTION OF SERVICE. IN NO EVENT SHALL MARETRON’S AGGREGATE LIABILITY
EXCEED THE PURCHASE PRICE OF THE PRODUCT(S) INVOLVED. MARETRON SHALL NOT BE SUBJECT
TO ANY OTHER OBLIGATIONS OR LIABILITIES, WHETHER ARISING OUT OF BREACH OF CONTRACT OR
WARRANTY, TORT (INCLUDING NEGLIGENCE), OR OTHER THEORIES OF LAW WITH RESPECT TO
PRODUCTS SOLD OR SERVICES RENDERED BY MARETRON, OR ANY UNDERTAKINGS, ACTS OR
OMISSIONS RELATING THERETO.
Maretron does not warrant that the functions contained in any software programs or products will meet
purchaser’s requirements or that the operation of the software programs or products will be uninterrupted or error
free. Purchaser assumes responsibility for the selection of the software programs or products to achieve the
intended results, and for the installation, use and results obtained from said programs or products. No
specifications, samples, descriptions, or illustrations provided Maretron to Purchaser, whether directly, in trade
literature, brochures or other documentation shall be construed as warranties of any kind, and any failure to conform
with such specifications, samples, descriptions, or illustrations shall not constitute any breach of Maretron’s limited
warranty.
Warranty Return Procedure:
To apply for warranty claims, contact Maretron or one of its dealers to describe the problem and determine the
appropriate course of action. If a return is necessary, place the product in its original packaging together with
proof of purchase and send to an Authorized Maretron Service Location. You are responsible for all shipping and
insurance charges. Maretron will return the replaced or repaired product with all shipping and handling prepaid
except for requests requiring expedited shipping (i.e. overnight shipments). Failure to follow this warranty return
procedure could result in the product’s warranty becoming null and void.
Maretron reserves the right to modify or replace, at its sole discretion, without prior notification, the warranty listed
above. To obtain a copy of the then current warranty policy, please go to the following web page:
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Appendix A – NMEA 2000® Interfacing
ACM100 NMEA 2000® Periodic Data Transmitted PGNs
PGN 65001 – Bus #1 Phase C Basic AC Quantities
PGN 65002 – Bus #1 Phase B Basic AC Quantities
PGN 65003 – Bus #1 Phase A Basic AC Quantities
PGN 65004 – Bus #1 Average Basic AC Quantities
PGN 65008 – Utility Phase C Basic AC Quantities
PGN 65011 – Utility Phase B Basic AC Quantities
PGN 65014 – Utility Phase A Basic AC Quantities
PGN 65017 – Utility Average Basic AC Quantities
PGN 65021 – Generator Phase C Basic AC Quantities
PGN 65024 – Generator Phase B Basic AC Quantities
PGN 65027 – Generator Phase A Basic AC Quantities
PGN 65030 – Generator Average Basic AC Quantities
The ACM100 uses these PGN to transmit voltage, frequency, and current information
Field 1: Line-Line AC RMS Voltage – This field indicates the AC RMS voltage between this
phase and the next phase in units of 1 V.
2: Line-Neutral AC RMS Voltage – This field indicates the AC RMS voltage between
this phase and the neutral phase in units of 1 V.
3: AC Frequency – This field indicates the frequency of the AC voltage in units of 1/128
Hz.
4: AC RMS Current (not transmitted for the “Bus” AC Source Type) – This field indicates
the current flowing through the specified phase in units of 1 A.
PGN 65006 – Utility Phase C AC Reactive Power
PGN 65009 – Utility Phase B AC Reactive Power
PGN 65012 – Utility Phase A AC Reactive Power
PGN 65015 – Utility Total AC Reactive Power
PGN 65019 – Generator Phase C AC Reactive Power
PGN 65022 – Generator Phase B AC Reactive Power
PGN 65025 – Generator Phase A AC Reactive Power
PGN 65028 – Generator Total AC Reactive Power
The ACM100 uses this PGN to transmit reactive power and power factor information.
Field 1: Reactive Power – This field indicates the reactive power delivered by the source in
units of 1 VAr.
2: Power Factor – This field indicates the magnitude of the power factor supplied by the
source in units of 1/16384 (dimensionless).
3: Power Factor Lagging – This field indicates whether the specified power factor is
lagging or leading.
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Appendix A – NMEA 2000 Interfacing
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ACM100 User’s Manual
PGN 65005 – Utility Total AC Energy
PGN 65018 – Generator Total AC Energy
The ACM100 uses this PGN to transmit the total energy delivered by the power source.
Field 1: Total kWh Hours Export – This field indicates the total energy delivered by the AC
power source in units of 1 kWh.
2: Total kWh Hours Import – This field indicates the total energy delivered to the AC
power source in units of 1 kWh.
PGN 65007 – Utility Phase C AC Power
PGN 65010 – Utility Phase B AC Power
PGN 65013 – Utility Phase A AC Power
PGN 65016 – Utility Total AC Power
PGN 65020 – Generator Phase C AC Power
PGN 65023 – Generator Phase B AC Power
PGN 65026 – Generator Phase A AC Power
PGN 65029 – Generator Total AC Power
The ACM100 uses these PGNs to transmit the total real power and apparent power (the vector
sum of real power and reactive power).
Field 1: Real Power – This field indicates the real power delivered by the AC power source in
units of 1W.
2: Apparent Power – This field indicates the apparent power delivered by the AC power
source in units of 1 VA.
Page A2
Appendix A – NMEA 2000 Interfacing
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