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® ®
ACM100
Alternating Current Monitor
User’s Manual
Revision 1.2
Copyright © 2012 Maretron, LLP All Rights Reserved
Maretron, LLP
rd
9014 N. 23 Ave #10
Phoenix, AZ 85021-7850
http://www.maretron.com
Maretron Manual Part #: M001701
Revision 1.2 Page i
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ACM100 User’s Manual Revision History Revision Description 1.0 Original document 1.1 Corrected AC sensor part number Updated mounting drawing 1.2 Added sensed voltage and current range specifications Added prohibition of red Loctite threadlocking compound and cleaning agents containing acetone Page ii 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 ........................................................
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ACM100 User’s Manual Figure 4 – Single-Phase (Dual Line) Connection Diagram ........................................................ 6 Figure 5 – Three-Phase Connection Diagram ........................................................................... 8 Figure 6 – Mounting Surface Template ................................................................................... 17 Table of Appendices ® Appendix A – NMEA 2000 Interfacing ...................................................
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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
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ACM100 User’s Manual 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. 1. Unpack the box (Section 2.1) 2. Choose a mounting location (Section 2.2) 3. Mount the ACM100 (Section 2.3) 4. Connect the ACM100 (Section 0) 5. Configure the ACM100 (Section 2.5) 2 Installation 2.1 Unpacking the Box When unpacking the box containing the
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® ® 2.3 Mounting the ACM100 Attach the ACM100 securely to the vessel using the included stainless steel mounting screws or other fasteners as shown in Figure 1 below. Do not use threadlocking compounds 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 (refer to Sectio
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ACM100 User’s Manual ® 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
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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
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ACM100 User’s Manual a. Connect the black wire to pin 7 (I ) on the ACM100 A+ b. Connect the white wire to pin 8 (I ) on the ACM100 A- 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 th
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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 (I ) on the ACM100 A+ b. Connect the white wire to pin 8 (I ) on the ACM100 A- c. Disconnect the Phase A hot wire from the AC power source and place it through the hole in the Current Sensor such
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ACM100 User’s Manual 2.4.2.3 Three-Phase (Phase A, B, C) Connection Please refer to Figure 5 for connecting the ACM100 to a three phase system. Current Transducer Line (Phase C) Current Transducer Line (Phase B) Current Transducer Line (Phase A) + + U.S. Europe 120 Volts 220 Volts 60Hz 50Hz - - Neutral ACM100 Screw Terminals 1 2 3 4 56789101112 Figure 5 – Three-Phase Connection Diagram Use the following instructions when you are connecting the ACM100 to a three-phase
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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 (I ) on the ACM100 C+ b. Connect the white wire to pin 12 (I ) on the ACM100 C- c. Disconnect the Phase C hot wire from the AC power source
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ACM100 User’s Manual c. Connect the black wire from one end of the second Voltage Sense cable to pin 3 (V ) on the ACM100 CLine 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 th
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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 typica
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ACM100 User’s Manual 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 f
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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 1 2 RMS Voltage 1 2 AC RMS Current 1 2 AC Frequency 1 2 Real Power 1 2 Apparent Power 1 2 Reactive Power 1 2 Power Factor Total kW Hours Export Total kW Hours Import Notes: 1. Available only if circuit type has been set to “Single-Phase (Phase A,
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ACM100 User’s Manual • 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
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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 IEC 60945 FCC and CE Mark Electromagnetic C
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ACM100 User’s Manual Electrical Parameter Value Comment Sensed Voltage 0-240 VAC 120,120/240,240,208Y,380Y configurations Sensed Current 0-200 A With supplied current transformer Operating Voltage 5 to 36 Volts DC Voltage ® Power Consumption 100 mA NMEA 2000 Interface ® Load Equivalence Number (LEN) 2 NMEA 2000 Spec. (1LEN = 50 mA) Reverse Battery Protection Yes Indefinitely Load Dump Protection Yes Energy Rated per SAE J1113 Mechanical Parameter Value Comment Size 3.50” x 4.
