Maretron DCM100 Computer Monitor User Manual
Contents
1. CAC y Sockets Connector Threads Connector Threads Male Connector Female Connector Pin 1 Shield Pin 2 NET S power supply positive V Pin 3 NET C power supply common V Pin 4 NET H CAN H Pin 5 NET L CAN L Figure 2 NMEA 2000 Connector Face Views 2 4 2 Connecting the DC power and Sensor Connections The DCM100 s DC Power and 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 securing the splash guard to 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 Number Signal Name Connection 1 la Current Sensor Red Wire 2 lg Current Sensor Green Wire 3 Ic Current Sensor Black Wire 4 ID Current Sensor White Wire 5 Vsens Battery Terminal 6 Vsens Battery Terminal 7 VPWR Vessel Ground 8 Vpwr 9 16 V Power 9 No Connect 10 No Connect 11 Ta Temperature Sender Red Wire 12 Te Temperature Sender Black Wire Step 1 The Current Sensor LEMHTA200 S has a gray cable containing red green black and white wires Install the Current Sensor as follows a Connect the red wire to pin 1 la on the DCM100 b Connect the green wire to pin 2 Ig on the DCM100 c Connect the black wire to pin 3 Ic on the DCM100 d Connect the whit2. 3 1 7 Time Remaining This parameter indicates how long the battery can supply the present current before becoming discharged The value of state of charge which is used to calculate the discharged state for this parameter can be adjusted by changing the Time Remaining Floor parameter see Section 2 5 4 11 on page 8 for details This reading may fluctuate significantly as loads are added to or subtracted from the battery so the damping may be adjusted by changing the Time Remaining Averaging Period parameter see Section 2 5 4 12 on page 8 for details Revision 1 0 Page 9 DCM100 User s Manual 4 Background 4 1 Why Monitor Batteries The lifetime and storage capacity of batteries can be greatly affected by the way in which they are used Discharging a battery excessively or under charging or over charging a battery can ruin it A battery monitor can help you monitor and adjust your battery usage to extend a battery s lifetime to the maximum possible In addition a battery monitor can help you to determine the amount of energy stored in your batteries in order to plan energy usage and charge cycles and can help you to monitor the health of your batteries to determine when they need to be replaced 4 2 Batteries A battery stores electrical energy in the form of chemical energy Batteries are not 100 efficient Not all electrical energy put into the battery during charging is stored in the battery as chemical energy and not
3. Attach the DCM100 securely to the vessel using the included stainless steel mounting screws or other fasteners as shown in Figure 1 below Figure 1 Mounting the DCM100 2 4 Connecting the DCM100 The DCM100 requires two electrical connections as shown in Refer to Section 2 4 1 for making the NMEA 20008 connection and Section 2 4 2 for making the DC monitor connections i e current sensor sensing voltage and temperature sensor connections 2 4 1 Connecting the DCM100 NMEA 20000 Interface Vertical text on the DCM100 label identifies the NMEA 2000 connector With the label right side up the NMEA 2000 connector can be found on the right side of the enclosure The NMEA 2000 connector is a five pin male connector see Figure 2 You connect the DCM100 to an NMEA 20009 network using a Maretron NMEA 2000 cable or compatible cable by connecting the female end of the cable to the DCM100 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 DCM100 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 Revision 1 0 Page 3 DCM100 User s Manual O O Pins
4. that is the Amp hour capacity rating of the battery is calculated if the battery is discharged from 100 to 0 using a constant current over the period of 20 hours If the battery is discharged at a faster rate then it will output less than the rated Amp hour capacity before becoming fully discharged 4 8 Peukert Exponent This effect was presented by a German scientist W Peukert in 1897 He formulated an equation which closely approximates the effect of discharge rate on battery capacity A Revision 1 0 Page 11 DCM100 User s Manual restated version of the equation which allows you to calculate the time to totally discharge a given battery at a given discharge current follows RC where C the rated battery capacity in Amp hours R the number of hours over which the rated battery capacity was calculated usually 20 I the discharge current in Amperes T the time to discharge the battery in hours and n the Peukert constant for the battery dimensionless The Peukert constant for an ideal battery is 1 0 For lead acid batteries the value of the Peukert constant is in the range of 1 10 1 25 The DCM100 takes the Peukert effect into account when calculating the state of charge of a battery Please contact the manufacturer of your battery to obtain the Peukert s constant for the battery to which you are connecting the DCM100 5 Synchronization In order to keep state of charge readings as accurate as p
5. NMEA 2000 displays such as the Maretron DSM250 or with NMEA 2000 compatible software such as Maretron N2KView The Maretron DCM100 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 DCM100 in order to ensure optimal performance 1 1 Firmware Revision This manual corresponds to DCM100 firmware revision 1 0 2 1 2 DCM100 Features The Maretron DCM100 has the following features NMEA 2000 Interface Waterproof Connectors Sealed Waterproof Enclosure Opto Isolated from NMEA 2000 Eliminating Potential Ground Loops Can monitor DC Power Sources Transmitting Voltage and Current Can monitor Lead Acid and Gel Batteries Transmitting Voltage Current Temperature and State of Charge e Uses Peukert s Constant and Charge Efficiency Factor for Accurate State of Charge Calculation e Can Calculate Charge Efficiency Factor Based on Observed Battery Performance 1 3 Quick Install Installing the Maretron DCM100 DC monitor involves the following five steps Please refer to the individual sections for additional details Unpack the box Section 2 1 Choose a mounting location Section 2 2 Mount the DCM100 Section 2 3 Connect the DCM100 Section 2 4 Configure the DCM1
6. all chemical energy stored in the battery is converted to electrical energy during discharge 4 3 Battery Capacity The capacity of a battery is specified in Amp hours A battery that delivers one Ampere of current for one hour has delivered one Amp hour The capacity of a marine deep cycle battery is specified based on the amount of current it can deliver to go from a fully charged state to a fully discharged state battery voltage has dropped to 10 5 volts For example a battery that becomes fully discharged after twenty hours of delivering 5 amperes of current is rated as a 5 amperes x 20 hours 100 Amp hour battery The capacity of a battery is affected by the temperature of the battery In general for lead acid batteries the capacity of a battery increases with higher temperature The DCM100 accounts for this by using the Temperature Coefficient parameter This parameter is expressed in units of percentage per degree Celsius For example a Battery Capacity Temperature Coefficient value of 0 5 C means that if the Charge Efficiency Factor were 80 Amp Hours at 25 C then at 26 C the CEF would increase to 80 4 Amp Hours 4 4 Battery Types Almost all batteries used in marine applications are of the Lead Acid type There are three main types of Lead Acid batteries depending on the form of the electrolyte When the electrolyte is stored in liquid form the batteries are called Flooded Wet or sometimes simply L
7. seen 11 4 6 1 Charge Efficiency Factor CEP t2 222 cncn0ntntetnt etek 11 4 7 Discharging Ineficiencies ui ooo 11 46 PeUuRErTE EDO ee E r e a e eeraa 11 a liar AON ee lad led E E E EEE E tn 12 5 1 Charge Efficiency Factor Calculation 12 6 Ma Nanterre dote eee ue encre LOC eset ae set eae et re ee ne nn ee ne neue ide 12 7 Troubleshooting sit 13 8 Technical Specifications arreter 14 9 Technical SUPPO ci AAA AAA iio 15 10 Installation TAME a 16 11 Maretron 2 Year Limited Warranty 17 Table of Figures Figure 1 Mounting the DCM MOO cir AA ne A o 3 Figure 2 NMEA 2000 Connector Face VIEWS ccccccscccsssssssesesesesecececececetsctetesesesenesererenenens 4 Figure 3 Mounting Surface Template ctrl oleo tn eee Cocsece toca nas Cocseoeetoceeouetendeeeedes 16 Table of Appendices Appendix A NMEA 2000 Interfacing Translations A1 Page iv Revision 1 0 Maretron 1 Introduction Congratulations on your purchase of the Maretron DC Monitor DCM100 Maretron has designed and built your DC monitor to the highest standards for years of dependable and accurate service Maretron s DCM100 is a device which monitors DC power sources or batteries and outputs information about these sources onto the industry standard NMEA 2000 marine data network so that these data can be monitored with networked
8. using a Maretron DSM250 display or other NMEA 2000 display unit that is capable of configuring the DCM100 Please refer to the Maretron DSM250 User s Manual for details The following DC Types are selectable Battery See Section 2 5 4 for options that are enabled when this type is selected Alternator Convertor Solar Cell Wind Generator 2 5 4 Battery Specific Options The options in this section are available only if the DC Type parameter is set to Battery 2 5 4 1 Battery Type The available battery types are Flooded Wet Gel AGM and Other Selecting one of these types causes the remaining parameters to be set to appropriate default values 2 5 4 2 Nominal Voltage You may program here the nominal voltage of the battery which is used only for reporting over the NMEA 2000 network Available choices are 6 12 24 32 36 42 and 48 Volts Page 6 Revision 1 0 Maretron 2 5 4 3 Equalization You may indicate here whether or not the battery supports equalization This is used only for reporting over the NMEA 2000 network Available choices are Supported and Not Supported 2 5 4 4 Temperature Coefficient The capacity of a battery generally increases with increasing temperature So that the DCM100 can properly calculate the battery s state of charge program this parameter with the increase in battery capacity in percent per increase in temperature in degrees Celsius T
9. 00 Section 2 5 Synchronize the DCM100 with the battery Section 2 6 OO ee hy Revision 1 0 Page 1 DCM100 User s Manual 2 Installation 2 1 Unpacking the Box When unpacking the box containing the Maretron DCM100 you should find the following items 1 DCM100 DC Monitor 1 DC Current Sensor with 5 ft long cable Part LEMHTA200 S outer cable covering grey 1 Battery Temperature Sensor with 5 ft long cable Part TR3K outer cable covering grey 1 Battery Voltage Sense Cable 5 ft long Part FCO1 outer cable covering white 1 Power Cable 5 ft long Part FCO1 outer cable covering white 1 Parts Bag containing 4 Stainless Steel Mounting Screws 1 DCM100 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 The DCM100 should be mounted near the monitored source of DC power Please consider the following when choosing a mounting location 1 The DCM100 is waterproof so it can be mounted in a damp or dry location 2 The orientation is not important so the DCM100 can be mounted on a horizontal deck vertical bulkhead or even upside down if desired 3 The DCM100 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 Page 2 Revision 1 0 Maretron 2 3 Mounting the DCM100
10. Maretron DCM100 DC Monitor User s Manual Revision 1 0 Copyright O 2008 Maretron LLP All Rights Reserved Maretron LLP 9014 N 23 Ave 10 Phoenix AZ 85021 7850 http www maretron com Maretron Manual Part M000026 Revision 1 0 Page DCM100 User s Manual Revision History Revision Description 1 0 Original document Page ii Revision 1 0 Maretron Table of Contents T Itroduc lO usina cad 1 Tal Firmware REVISION arre 1 dee DONTIOD Peatures sos a 1 A RS a a oo none 1 2 Installation A A A AA A AAA A a 2 o etes oseecseotceeieioieetieieises 2 2 2 Choosing a Mounting LOCATION ssssssssssersssseeserreerserseerseereserreerp ereeereserseerte 2 23 Mouning the DEMI scan 3 24 Connecting the DCM100 SR ee 3 2 4 1 Connecting the DCM100 NMEA 2000 Interface 3 2 4 2 Connecting the DC power and Sensor Connections 4 2 4 3 Checking Connections scscccecccccc ecctsexsueciseestestsecescetsensueseuevetes eeseuesesevebesteecebests 5 2 5 Configuring the DCMIOO cio 5 2 5 1 Instance Selection A nc it 6 2 0 2 PNOnty pee I ooo ooo lolis 6 2 9 9 DO Type create Sn en nn sue 6 Zoe Battery Speciftic Options asia 6 2 5 4 1 Battery Titans 6 2 5 4 2 Nominal Voltage do 6 204 3 Equalz aia 7 2 5 4 4 Temperature Coefficient 7 2 5 4 5 Peukert EXPOMGMbisccsccsctecsansitscaccasincsacssaeascncsiecsanaiaeaaaasiaoasacaidessanances 7 2 5 4 6 Ch
11. PGNs 126464 PGN List Transmit and Receive N A 126996 Product Information N A 126998 Configuration Information N A Protocol PGNs 059392 ISO Acknowledge N A 059904 ISO Request N A 060928 ISO Address Claim N A 065240 ISO Address Command N A 126208 INMEA N A Maretron Proprietary PGNs 128720 Configuration N A Electrical Parameter Value Comment Operating Voltage 9 to 16 Volts DC Voltage Power Consumption 70 mA Vewr Vewr 30 mA NMEA 2000 Interface Load Equivalence Number LEN 1 NMEA 20007 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 20 x 2 03 Including Flanges for Mounting 88 9mm x 106 7mm x 51 6mm Weight 13 oz 368 5 g Page 14 Revision 1 0 Environmental Maretron Parameter Value IEC 60954 Classification Exposed Degree of Protection IP64 Operating Temperature 25 C to 55 C Storage Temperature 40 C to 70 C Relative Humidity 93 RH 40 per IEC60945 8 2 Vibration 2 13 2Hz 1mm 13 2 100Hz 7 m s2 per IEC 60945 8 7 Rain and Spray 12 5mm Nozzle 100liters min from 3m for 30min per IEC 60945 8 8 Solar Radiation Ultraviolet B A Visible and Infrared per IEC 60945 8 10 Corrosion Salt Mist 4 times 7days 40 C 95 RH after 2 hour Salt Spray Per IEC 60945 8 12 Electromagnetic Emission Conducted
12. a from each PGN was taken at the same time although they are reported at slightly different times DC Instance This field indicates the particular DC source or battery for which this data applies A single battery will have an instance of 0 Batteries in boats with multiple batteries will be numbered uniquely starting at 0 DC Type This field indicates the type of DC source being monitored The DCM100 indicates on of the following values O Battery 1 Alternator 2 Convertor 3 Solar Cell 4 Wind Generator State of Charge This field indicates the state of charge of a battery in units of 1 State of Health This field always contains a value of O no State of Health calculation Time Remaining This field indicates the time remaining to the discharge floor at the current rate of discharge in units of 1 minute Ripple Voltage This field indicates the amplitude of AC ripple present on the DC voltage source in units of 1 mV PGN 127508 Battery Status The DCM100 uses this PGN to transmit slowly changing Battery Data Field 1 Battery Instance This field indicates the particular battery for which this data applies A single battery will have an instance of 0 Batteries in boats with multiple batteries will be numbered uniquely starting at 0 Battery Voltage This field indicates the voltage of the battery in units of 10 mV Battery Current This field indicates the current flow
13. and Radiated Emission per IEC 60945 9 Electromagnetic Immunity Conducted Radiated Supply and ESD per IEC 60945 10 Safety Precautions Dangerous Voltage Electromagnetic Radio Frequency per IEC 60945 12 9 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 support maretron com World Wide Web _http www maretron com Revision 1 0 Mail Maretron LLC Attn Technical Support 9014 N 23 Ave Suite 10 Phoenix AZ 85021 USA Page 15 DCM100 User s Manual 10 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 3 45 87 6mm 3 00 76 2mm 3 50 88 9mm 4 20 106 7mm Figure 3 Mounting Surface Template Page 16 Revision 1 0 Maretron 11 Maretron 2 Year Limited Warranty Maretron warrants the DCM100 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 re
14. arge Efficiency Factor summer 7 2 5 4 7 Fully Charged Voltage ia 7 2 5 4 8 Fully Charged CUIT acacia 7 2 5 4 9 Fully Charged Time seg cece teat caer ene 7 2 9 4 10 Battery Temperature supina 7 2 04 11 Time Remaining FlGOr sssesss trente 8 2 5 4 12 Time Remaining Averaging Period 8 2 5 4 13 Zero Current Threshold esas diri its 8 2 5 4 14 Current Sensor Zero Offset Calibration 8 2 5 5 NMEA 2000 PGN Enable Disable c cccccessssssseseseseseseseseseseseserenesenens 8 2 5 6 Restore Factory D faults tt 8 3 Output PARAMS disease tiiienentitnne rte nat n id ein ti tetes ine tent nds 8 3 1 Parameters Common to DC Sources and Batteries ccccccccccccccccccccncccccnnnnnnnnnnn 9 3 1 1 Battery Volador 9 31 2 Battery CUIT Md A AAA A AA 9 3 1 3 Ripple Voltage ostia lalalala iia 9 3 1 4 Parameters Specific to Batteries saciar rica rna an arribo an RRanARRRAbRRbA 9 3 1 5 Battery Case Tampere oso 9 3 1 6 ie AA nt tt at 9 31 7 MA o dre 9 4 Background iero ts 10 4 1 Why Monitor Bawenes Ti nid disent ietitieiesn dent ieneitis tensions 10 4 2 A a Cle iii saisis ii ae site die 10 Revision 1 0 Page iii DCM100 User s Manual 43 Battery CADACIN s ccccsecietctradcctdscteretitatasaad LATA ATAR AA Ad RARA E AAA TRATAR LAA 10 4 Battery Types enen A E AA AE etl eed 10 4 5 Battery Safety Pr cautions see ein nie nn cine nn cts 11 4 6 Charging Inefficiencies
15. arranty 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 brea
16. battery is considered fully charged if the battery voltage remains above this value and the battery current remains below the Fully Charged Current for the amount of time defined by the Fully Charged Time parameter 2 5 4 10 Battery Temperature In order for the DCM100 to properly determine battery capacity and state of charge it must know the temperature of the battery If you are using a TR3K temperature sensor attached to the battery you should set this parameter to Sensor Otherwise if no temperature sensor is Revision 1 0 Page 7 DCM100 User s Manual available you can set this parameter to the estimated battery temperature between 25 C and 125 C 2 5 4 11 Time Remaining Floor The DCM100 calculates the time given the current being discharged from the battery before the battery becomes discharged By default the DCM100 considers a battery to be discharged when its state of charge reaches the Time Remaining Floor value which is by default set to 50 If you desire to use some other state of charge value for the Time Remaining Floor you may change this parameter to the desired value 2 5 4 12 Time Remaining Averaging Period If loads on the battery are switching on and off frequently the battery time remaining value calculated by the DCM100 can vary significantly You may change the time over which current readings are averaged by changing this parameter anywhere in the range of 1 second to 32 min
17. ch 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 http www maretron com company warranty php Revision 1 0 Page 17 Maretron Appendix A NMEA 2000 Interfacing DCM100 NMEA 2000 Periodic Data Transmitted PGNs PGN 127506 DC Detailed Status The DCM100 uses this PGN to transmit slowly changing DC and Battery Data Field 1 SID The sequence identifier field is used to tie related PGNs together For example the DCM100 will transmit identical SIDs for 127506 DC Detailed Status and 127508 Battery Status to indicate that the readings are linked together i e the dat
18. e 8 Revision 1 0 Maretron 3 1 Parameters Common to DC Sources and Batteries The parameters in this section are transmitted regardless of the DC Type selected see Section 2 5 3 for details 3 1 1 Battery Voltage This parameter indicates the voltage present across the battery terminals 3 1 2 Battery Current This parameter indicates the voltage being supplied to the battery in the case of charging or being supplied from the battery in the case of discharging Charging current is represented as a positive value while discharging current is represented as a negative value 3 1 3 Ripple Voltage This parameter indicates the magnitude of the AC voltage component of the battery or DC source Ideally the ripple voltage should read zero Excessive ripple voltage may cause functional problems in devices which draw power from the DC power source 3 1 4 Parameters Specific to Batteries The parameters in this section are transmitted only of the DC Type parameter is set to a value of Battery see Section 2 5 3 for details 3 1 5 Battery Case Temperature This parameter indicates the present temperature indicated at the temperature sensor which should be attached to the battery s negative terminal 3 1 6 State of Charge This parameter indicates how much energy is contained in the battery The reading ranges from 0 which indicates a completely flat battery to 100 which indicates a completely charged battery
19. e to contact the battery terminals the resulting short circuit could produce a current which could melt the objects and possibly cause severe skin burns 4 6 Charging Inefficiencies When charging a battery not all of the electrical energy put into the battery is stored as chemical energy This section details how the DCM100 accounts for this type of inefficiency 4 6 1 Charge Efficiency Factor CEF The Charge Efficiency Factor CEF represents the percentage of electrical energy that is put into a battery that is stored as electrical energy measured at 25 C An ideal battery would have a charge efficiency factor of 1 0 or 100 A new flooded lead acid battery may have a CEF of 0 95 or 95 This value means that if 100 Amp hours of energy are put into a battery by a charger this results in the battery s charge increasing by only 95 Amp hours The DCM100 is capable of calculating a battery s charge efficiency factor on the fly as the battery is being charged and discharged to produce the most accurate state of charge values 4 7 Discharging Inefficiencies In an ideal battery 100 of the energy in the battery would be available no matter what discharge current is used However with lead acid batteries the energy available from a battery depends on the rate at which a battery is discharged the faster you discharge the battery the less energy is available The Amp hour capacity of most batteries is specified using a 20 hour rate
20. e to the mounting surface If the unit is loose tighten the mounting screws e Check the security of the cable connected to the NMEA 20009 connector and tighten if necessary e Check the security of all of the battery connections current sensor connections and temperature connections on the top of the unit and tighten if necessary 7 Troubleshooting If you notice unexpected operation of the Maretron DCM100 follow the troubleshooting procedures in this section to remedy simple problems If these steps do not solve your problem please contact Maretron Technical Support refer to Section 9 for contact information Symptom Troubleshooting Procedure No DC power data Ensure that the DCM100 is properly connected to the NMEA visible on NMEA 20009 2000 network network Ensure that the battery voltage current sensor and temperature sensors are properly connected to the DCM100 Ensure that the DCM100 has the appropriate NMEA 2000 PGNs enabled as described in Section 2 5 4 14 Battery State of Charge Ensure that the Peukert exponent you have entered for the battery shows 100 before the is correct charge cycle is finished Synchronize the DCM100 with the battery Battery State of Charge Ensure that the Peukert exponent you have entered for the battery jumps from 95 or is correct lower to 100 when the charge cycle is finished Synchronize the DCM100 with the battery Battery State of Charge The current sensor is in
21. e wire to pin 4 Ip on the DCM100 Page 4 Revision 1 0 Maretron e Disconnect the wire from the positive terminal of the battery or other DC source that is being monitored and place it through the hole in the Current Sensor such that the arrow on the Current Sensor points towards the battery or DC source Then reattach the wire to the positive terminal of the battery or other DC source Step 2 The temperature sensor TR3K has a gray cable containing red and black wires Connect the Temperature Sensor as follows a Connect the red wire to pin 11 TA on the DCM100 b Connect the black wire to pin 12 Tg on the DCM100 c Connect the ring terminal on the Temperature Sensor to the negative terminal of the battery being monitored Step 3 The Battery Sense cable FC01 is a white cable containing one red and one yellow wire please note that the same type of cable is used both for the Battery Sense cable and for the Power cable Install the Battery Sense cable as follows a Connect the yellow wire from one end of the cable to pin 6 Vsens on the DCM100 b Connect the yellow wire from the other end of the cable to the negative terminal of the battery or DC source being monitored NOTE this may or may not be the same as the vessel ground Connect the red wire from the first end of the cable to pin 5 Vsens on the DCM100 Connect the red wire from the other end of the cable to the positive terminal of the battery or DC source being monito
22. ead Acid When the electrolyte is stored in a gel form the batteries are called Gel batteries When the electrolyte is stored absorbed into fiberglass mats the batteries are called AGM or Absorbent Glass Mat batteries These batteries have different properties and the DCM100 can monitor all three of these battery types When you set the Battery Type parameter the DCM100 sets remaining battery measurement parameters to values which are representative of the selected battery type see Section 2 5 4 1 on page 6 for details Page 10 Revision 1 0 Maretron 4 5 Battery Safety Precautions 1 Lead acid batteries generate explosive gases during operation Make sure that the area around the batteries is well ventilated Never allow flames or sparks near a battery 2 Wear clothing and eye protection when working with batteries If battery acid comes into contact with your skin or clothing wash them immediately with soap and water If battery acid contacts your eyes immediately rinse your eyes with cool running water for at least 15 minutes and immediately seek medical attention 3 Be careful when using metal tools on or around batteries If a metal tool falls between the battery terminals it can cause a short circuit which can generate sparks igniting fuel fumes or may also cause the battery to explode 4 Remove metal items like watches necklaces rings and bracelets when working with batteries If these items wer
23. he temperature coefficient can be set to a value between 0 C 5 C 2 5 4 5 Peukert Exponent The Peukert Exponent for the battery can be set to a value between 1 0 and 1 5 Please refer to Section 4 8 on page 11 for details 2 5 4 6 Charge Efficiency Factor The Charge Efficiency Factor for the battery can be set to a value between 5 and 100 Please refer to Section 4 6 1 on page 11 for details 2 5 4 7 Fully Charged Voltage In order for the DCM100 to determine when a battery is fully charged it uses three parameters The Fully Charged Voltage indicates the value voltage at which the battery is considered fully charged if the battery voltage remains above this value and the battery current remains below the Fully Charged Current for the amount of time defined by the Fully Charged Time parameter 2 5 4 8 Fully Charged Current In order for the DCM100 to determine when a battery is fully charged it uses three parameters The Fully Charged Voltage indicates the value voltage at which the battery is considered fully charged if the battery voltage remains above this value and the battery current remains below the Fully Charged Current for the amount of time defined by the Fully Charged Time parameter 2 5 4 9 Fully Charged Time In order for the DCM100 to determine when a battery is fully charged it uses three parameters The Fully Charged Voltage indicates the value voltage at which the
24. his field indicates the nominal voltage of the battery The DCM100 indicates one of the following values 0 6 Volts 1 12 Volts 2 24 Volts 3 32 Volts 4 36 Volts 5 42 Volts 6 48 Volts Battery Chemistry This field indicates the chemistry of the battery The DCM100 indicates one of the following values O Lead Acid 1 Lilon 2 NiCad 3 Zn0 3 NiMH Battery Capacity This field indicates the capacity of the battery in units of 1 amp hour Battery Temperature Coefficient This field indicates the increase of battery capacity with increasing temperature in units of 1 C Peukert Exponent This field indicates the Peukert exponent of the battery with a resolution of 0 002 unitless Charge Efficiency Factor This field indicates the charge efficiency factor of the battery in units of 1 Page A2 Appendix A NMEA 2000 Interfacing Revision 1 0
25. ing through the battery in units of 0 1A Positive values denote that charging current negative values denote discharge current Battery Case Temperature This field indicates the temperature of the battery s case in units of 0 01 K SID The sequence identifier field is used to tie related PGNs together For example the DCM100 will transmit identical SIDs for 127506 DC Detailed Status and 127508 Battery Status to indicate that the readings are linked together i e the data from each PGN was taken at the same time although they are reported at slightly different times Revision 1 0 Appendix A NMEA 2000 Interfacing Page A1 DCM100 User s Manual PGN 127508 Battery Configuration Status The DCM100 uses this PGN to transmit unchanging battery configuration data Field 1 Battery Instance This field indicates the particular battery for which this data applies A single battery will have an instance of 0 Batteries in boats with multiple batteries will be numbered uniquely starting at 0 Battery Type This field indicates the type of battery The DCM100 indicates one of the following values O Flooded 1 Gel 2 AGM Supports Equalization This field indicates whether the battery supports an equalization charge The DCM will always transmit a value of O for this field Reserved This field is reserved by NMEA therefore the DCM100 sets all bits to a logic 1 Nominal Voltage T
26. ly Charged Current 13 Fully Charged Time 14 Battery Temperature 15 Time Remaining Floor 16 Time Remaining Averaging Revision 1 0 Page 5 DCM100 User s Manual Period 17 Zero Current Threshold 18 Manually Set Battery to 100 19 Current Sensor Zero Offset Calibration and 20 NMEA 2000 PGN Enable Disable 2 5 1 Instance Selection NMEA 2000 provides a unique engine instance for each DC power source on a vessel You configure the DCM100 using a Maretron DSM250 display or other NMEA 2000 display unit that is capable of configuring the DCM100 Please refer to the Maretron DSM250 User s Manual for details 2 5 2 Priority Selection NMEA 2000 can provide a unique priority for allowing multiple redundant sensors for a single DC power source on a vessel If you have only on DCM100 on a particular DC power source you should leave the priority selection at the default value of zero You configure the DCM100 using a Maretron DSM250 display or other NMEA 2000 display unit that is capable of configuring the DCM100 Please refer to the Maretron DSM250 User s Manual for details 2 5 3 DC Type You can configure the DCM100 as to what type of DC power source it is monitoring With the exception of the Battery type the value of this parameter is used only for reporting the power source type over the NMEA 2000 network However if you select the Battery type many battery related options become available You configure the DCM100
27. ossible the DCM100 must periodically once per month is recommended be synchronized with the battery This is done by fully charging the battery When the battery is at the Fully Charged Voltage and the current flowing into the battery is below the Fully Charged Current threshold for more than the Fully Charged Time the DCM100 sets the state of charge of the battery 100 see Sections 2 5 4 7 2 5 4 8 and 2 5 4 9 starting on page 7 for details 5 1 Charge Efficiency Factor Calculation The battery must first be discharged below the synchronization threshold state of charge The battery must then be fully charged At this point if the Charge Efficiency Factor is set to Auto the DCM100 re calculates the Charge Efficiency Factor based on the amount of energy which flowed into the battery during the charging cycle This new Charge Efficency Factor value is used for further charging cycles Alternatively you may manually set the value of the Charge Efficiency Factor see Section 2 5 4 6 on page 7 for details 6 Maintenance Regular maintenance is important to ensure continued proper operation of the Maretron DCM100 Perform the following tasks periodically Page 12 Revision 1 0 Maretron e Clean the unit with a soft cloth Do not use chemical cleaners as they may remove paint or markings or may corrode the DCM100 enclosure or seals e Ensure that the unit is mounted securely and cannot be moved relativ
28. red a9 Step 4 The Power cable FC01 is a white cable containing one red and one yellow wire Install the DCM100 power cable as follows a Connect the yellow wire from one end of the cable to pin 7 Vpwr on the DCM100 b Connect the yellow wire from the other end of the cable to the vessel ground c Connect the red wire from the first end of the cable to pin 8 Vpwr on the DCM100 d Connect the red wire from the other end of the cable to a source of 5 36 VDC power NOTE this wire may nor may not be connected to the same place as the red wire from the Battery Sense cable 2 4 3 Checking Connections Once the NMEA 2000 Current Sensor Temperature Sensor Voltage Sense and DC Power connections to the DCM100 have been completed check to see that information is being properly transmitted by observing an appropriate NMEA 20009 display If you don t see DC power data refer to Section 7 Troubleshooting 2 5 Configuring the DCM100 The DCM100 will transmit data over the NMEA 2000 network as it is shipped from the factory however it does require configuration in almost all cases for proper functioning There are several configurable items within the DCM100 including 1 NMEA 2000 DC power instance selection 2 Priority Selection 3 DC Type 4 Battery Type 5 Battery Capacity 6 Nominal Voltage 7 Equalization 8 Temperature Coefficient 9 Peukert Exponent 10 Charge Efficiency Factor 11 Fully Charged Voltage 12 Ful
29. stalled incorrectly Reverse the direction of decreases while the wire through the current sensor charging and increases while discharging Warning There are no user serviceable components inside the Maretron DCM100 Opening the DCM100 will expose the sensitive electronic components to adverse environmental conditions that may render the unit inoperative Please do not open the DCM100 as this will Revision 1 0 Page 13 DCM100 User s Manual automatically void the warranty If service is required please return the unit to an authorized Maretron service location 8 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 8 Systems IEC 60945 FCC and CE Mark Electromagnetic Compatibility NMEA 20009 Parameter Group Numbers PGNs Description PGN PGN Name Default Rate Periodic Data PGNs 127506 DC Detailed Status 0 67 times second 127508 Battery Status 0 67 times second 127513 Battery Configuration Status N A Response to Requested
30. turned 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 W
31. utes 2 5 4 13 Zero Current Threshold The current sensor reading can drift slightly at zero current depending on temperature Over a long period of time this can cause the DCM100 to calculate that a battery is discharging slowly even though itis not The Zero Current Threshold parameter indicates a reading from the current sensor below which no current is considered to be flowing into or out of the battery 2 5 4 14 Current Sensor Zero Offset Calibration The DCM100 is shipped with a Hall effect current sensor In order to match the DCM100 unit and the sensor to one another and ensure maximum accuracy you should perform this calibration step while there is no current flowing through the current sensor 2 5 5 NMEA 2000 PGN Enable Disable The DCM100 is capable of transmitting two different kinds of NMEA 2000 messages or PGNs associated with DC sources and batteries You may individually enable or disable each of these messages You can configure the DCM100 using a Maretron DSM250 display or other NMEA 2000 display unit that is capable of configuring the DCM100 Please refer to the Maretron DSM250 User s Manual for details 2 5 6 Restore Factory Defaults Selecting this configuration option causes all stored parameters in the DCM100 to be reset to the values they contained when the unit was manufactured 3 Output Parameters The DCM100 outputs a variety of information about the DC source or battery onto the NMEA 2000 network Pag
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