PVDM4-LC - Atkinson Electronics Inc
Contents
1. The PVDM4 LC will automatically switch back to the battery voltage display setting after 4 minutes unless the display setting lock is activated The backlight will come on for 15 seconds any time the select button is pushed and will stay on continuously in scroll mode If a low battery voltage condition occurs the display will automatically switch back to the battery voltage setting if not already there and blink the display reading and battery voltage LED If the user accesses other display settings while in this condition they will be displayed for 5 seconds then switch back to battery voltage setting until the low battery voltage problem is corrected Any accumulated values may be meaningless if the battery voltage remains below 11V as this is the minimum voltage for the PVDM4 LC to operate properly The PVDM4 LC display will continue to accumulate amp hours they just won t be displayed without reverting back to the flashing battery voltage after 5 seconds The battery voltage signal tells the PVDM4 LC module what battery system voltage it is 12V 24V or 48V ORDERING INFORMATION PVDM4 LC Four function Display ATKINSON ELECTRONICS INC Web Site www atkinsonelectronics com SPECIFICATIONS SIZE WEIGHT MOUNTING POWER CURRENT DRAW CONNECTION CONTROL DISPLAY VOLTAGE CURRENT DISPLAY w JE Asinson Electronics inc 2 75 x 4 5 x 75 inches 3 ounces Single gang electric box or surfac2. by 225 6V 25 1V 24 8V 24 4V 24 0V 23 6V 23 2V 22 8V 22 4V 22 0V lt 21 6V 251 2V 50 2V 49 6V 48 8V 48 0V 47 2V 46 4V 45 6V 44 8V 44 0V lt 43 2V REV 1 03 Complete the installation and test the operation of the PVCM20D charge control module Before mounting the PVDM4 LC remove tape from the RJ 45 jack on the PVCM20D and plug in the network cable to both the PVCM20D and PVDM4 LC charge controller Verify that all the readings work properly Calibrate the battery voltage reading by first measuring the battery voltage with an accurate digital voltmeter Adjust the PVDM4 LC s battery voltage reading to match by adjusting the P1 potentiometer less than 1 4 turn next to the RJ 45 jack on the back of the PYVDM4 LC module See diagram to the right Unplug the network cable on both ends Determine the mounting method to be used surface cutout or single gang electrical box For surface cutout mounting place the template found on page 16 of this manual over the desired mounting location and mark through the template the two mounting screw locations Drill two pilot holes into the cabinet or mounting surface at the marked locations Use a power drill to drive screws into the mounting surface before mounting the display module Back out the screws cut out the template leaving the mounting screw tabs and attach the template with the screws to the mounting surface Draw around the template on the mounting
3. surface marking through the template around the mounting screw tabs Carefully cut out the marked area using a saber saw or router leaving the mounting screw tabs Plug the network cable into the RJ 45 jack after pulling it through the cutout hole Insert the screws through the front of the module and into the holes and tighten by hand with a screwdriver USING A POWER DRILL TO DRIVE IN THE SCREWS THROUGH THE PVDM4 LC MODULE WILL VOID THE WARRANTY BY DAMAGING THE PVDM4 LC MODULE For single gang electrical box mounting mount the box securely and install conduit at least 3 4 in EMT as desired Route or pull the display end of the network cable into the electrical box being careful not to damage the RJ 45 plug Plug the network cable into the back of the PVDM4 LC module and mount the module with 6 32 screws into the tabs of the single gang box Hand tighten the screws to avoid damaging the PVDM4 LC module Now plug the charge controller end of the network cable into its RJ 45 jack and verify that the display is working properly Use grease or silicone to cover the controller side of the network cable plug to avoid corrosion and fill the end of conduit ATKINSON ELECTRONICS INC Web Site www atkinsonelectronics com PHOTOVOLTAIC DISPLAY MODULE Low Current PVDM4 LC INSTALLATION INSTRUCTIONS INSTALLATION TIPS 1 If a network cable up to 50 feet long other than the one supplied in this kit is used to connect the PVDM4 LC to t
4. PHOTOVOLTAIC DISPLAY MODULE Low Current PVDM4 LC FEATURES amp APPLICATIONS K Kod Light switch size module displays 4 battery functions Battery voltage Solar charge current Accumulated solar amp hours Percent battery charge remaining Surface cutout or electrical box mounting Connects w RJ 45 jack network cable to remote mounted charge controller or shunt adaptor Operates on 12V to 48V DC battery systems Back lit LCD for reading in dim locations K2 K2 K2 K2 DESCRIPTION amp OPERATION The PVDM4 LC display module serves as a remote digital readout for the PVCM20D charge controller This charge controller contains an internal solar current shunt RJ 45 network jack and associated internal wiring to provide power and signals to the PVDM4 LC through a T568A or T568B standard computer network patch cable which plugs into the RJ 45 jack on the back of the PVDM4 LC If the wrong configuration network cable such as the crossover type is used then the error LED on the back of the PVDM4 LC will light indicating that the proper cable needs to be plugged in for the display to work properly The PVDM4 LC s normal display indication is battery voltage and its associated LED The select button allows the user to turn on the displays backlight advance to the next display setting reset the solar and battery amp hour accumulators lock display or current setting or activate scroll mode see User Instructions
5. e mount with cutout 12 to 24V DC from PVCM20D or 12 to 48V with PVDAM adaptor 15 mA normal mode 35 mA with backlight on RJ 45 jack to T568A or T568B network Cat 5 patch cable Single select reset button 3 digit LCD to 999 or with decimal 35 inch character height Displays 0 to 60V DC 0 to 25 Solar Charge Amps below 25 amps the display will indicate chr if the controller is charging BATTERY PERCENT While charging reads over 100 DISPLAY LOW BATTERY VOLTAGE AMP HOURS TEMPERATURE Distributed by 12 8V 100 10 8V 0 12V syst 25 6V 100 21 6V 0 24V syst 51 2V 100 43 2V 0 48V syst Detects 11 2V 22 4V amp 44 8V for 12V 24V amp 48V systems Displays 0 TO 999 accumulated 0 to 50 C REV 1 03 PHOTOVOLTAIC DISPLAY MODULE Low Current PVDM4 LC USER INSTRUCTIONS 1 The power and signals to the PVDM4 LC display are supplied through the CAT 5 network cable connecting the PVDM4 LC to a PVCM20D charge controller or PVDAM adaptor module The PVDM4 LC will normally revert back to the continuous battery voltage display after approximately 4 minutes in any other reading Select button operation a Tapping or pressing the select button activates the backlight for 30 seconds b Pressing for to 1 second then releasing the button advances to the next reading c From the battery voltage display only pressing and holding the button will adva
6. he PVCM20D charge controller it must be the same straight through type or the display will not read properly A cable error LED may light up on the back of the meter if the wrong type of cable such as the crossover type is used 2 The minimum solar charge current the PVDM4 LC will indicate is about 20 amps Below this value the PVDM4 LC will display chr if the PVCM20D is passing solar charge current to the battery The current display will indicate O if the controller is not charging 3 The solar current shunt used in the PVCM20D in this kit is for a maximum of 20 amps There are other meters and charge controllers in the Atkinson Electronics product line Only charge controllers and meters from this PYVDM4 LC PVCM20D kit may be interchanged with other controllers and meters from kits of the same part number BATTERY ADJUST POT AND JACK LOCATIONS Face Plate Display Processor Battery Voltage Adjust P1 pot CAT 5 Patch Cable Jack Cable Error Indicator XOLIM The Battery voltage calibration potentiometer is located in the center of the SEDM4 LC PC board below the micro processors socket REV 1 03 Distributed by
7. he reset The display will stop flashing and retain its current value after several seconds 3 Note There is no display lock for the accumulation displays They will revert to battery voltage after approximately 4 minutes Low battery voltage will cancel any user selections The user can advance to any reading but it will automatically return to the flashing low battery voltage display after 5 seconds ATKINSON ELECTRONICS INC Web Site www atkinsonelectronics com PVDM4 LC HOOKUP DIAGRAM To PV panel Fuse By User Yel Fuse by User LAL u Stora Batte I 12V 24VDC ge ry Red Blk ij t To Loads O INTERNAL 0 005 OHM 100MV SHUNT Lh PVCM20D CHARGE FULLO PARTIAL Low O O O Battery Voltage XX Solor Charge Amps X Solar Amp Hours X Battery Percent select D TYPE TS68A or TS68B NE ETHERNET TWOR PATCH CABLE Il RJ45 PVDM T ODULE O DISPLAY RJ 45 JAC LOCATED O BACK OF ODULE PVDM4 LC BATTERY PERCENT CHART The PVDM LC s Battery Percent position will display the percent remaining for the following battery voltages 100 212 8V 90 12 6V 80 124V 70 12 2V 60 12 0V 50 11 8V 40 11 6V 30 11 4V 20 11 2V 10 11 0V 0 10 8V Distributed
8. nce the display automatically through each of the readings 1 If the button is released before returning to the battery voltage display the reading will remain in that position until the display times out 4 minutes 2 If the button is held through all readings then released at the battery voltage display the PVDM4 LC will enter the scroll mode advancing to the next reading every 3 seconds indefinitely 3 Tapping the button exits the scroll mode 4 A low battery voltage condition will also exit the scroll mode d Display lock mode is available for Solar Charge Amps and Battery Percentage 1 To lock display from timing out and reverting to battery voltage advance display to desired position then press and hold the button until the display flashes approximately 3 seconds 2 Release button when the display stops flashing it will remain indefinitely in that reading 3 Tapping the button while the display is flashing prevents entering the lock mode 4 Advancing to the next reading see par 3b cancels the lock mode 5 Low battery voltage also cancels the lock mode e Resetting the Solar Accumulated Amp Hour reading to zero 1 Pressing and holding the button for approximately 6 seconds will reset the display value The display starts flashing after 3 seconds the reading goes to zero after 6 seconds and the display stops flashing 2 Releasing the button while the display is flashing cancels t
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