PVLC-40 - Atkinson Electronics Inc
Contents
1. 12 24V IN LINE PV CHARGE amp LIGHTING CONTROLLER PVLC 40 PVLC 40 TEMPERATURE THRESHOLDS PVLC 40 SWITCH LIGHTING ADJUSTMENTS Below 0 C On 13 3V Off 15 0V Pos 0 Low Voltage Disconnect Between 0 5 C On 13 3V Off 14 8V Pos 1 On for 2 hrs after dusk Between 5 10 C On 13 1V Off 14 6V Pos 2 On for 3 hrs after dusk Between 10 15 C On 12 9V Off 14 4V Pos 3 On for 4 hrs after dusk Between 15 30 C On 12 7V Off 14 2V Pos 4 On for 6 hrs after dusk Between 30 35 C On 12 7V Off 14 0V Pos 5 On for 8 hrs after dusk Between 35 40 C On 12 6V Off 13 8V Pos 6 On from dusk to dawn Between 40 45 C On 12 6V Off 13 6V Pos 7 On for 6 hrs after dusk 2 hrs before dawn Above 45C On 12 7V Off 14 2V Pos 8 On for 4 hrs after dusk 2 hrs before dawn Gel Cell Batteries 0 3V Lower Pos 9 On for 2 hrs after dusk 2 hrs before dawn INSTALLATION AND STARTUP INSTRUCTIONS 1 Connect the PV panel and lighting load negative wires to the negative battery post Connect the PVLC 40 B terminal to the Battery positive post user supplied wire and 50 Amp fuse and the PV panel wire to the PVLC 40 PV terminal Wait to connect the PVLC 40 B terminal to battery negative post Adjust the desired time range on the switch per PVLC 15 switch lighting options Now connect the PVLC 40 B to the battery negative post to power up the PVLC 40 Ve2. 40 AMP 12 24V IN LINE PV CHARGE amp LIGHTING CONTROLLER PVLC 40 FEATURES PV charge amp lighting controller waterproof Micro controller for digital accuracy and reliability Fully automatic operation on 12V or 24V DC systems Automatic dusk and dawn lighting control All night or adjustable time off for area lighting with pre dawn lighting for signs Will handle up to 40 Amps 28VDC from PV panels and lighting loads up to 40 Amps Built in low voltage disconnect max load 40 Amps Built in temperature compensation for PV charging LED indication of solar charge amp lighting control Selectable operation for sealed flooded batteries Pulse action reduces battery sulfation APPLICATIONS Photo Voltaic charge and lighting controller for area lighting and large roadside signs OPERATION The PVLC 40 charge controller monitors both the battery and PV panel voltage to determine 12V or 24V DC mode of operation if PV panels have sufficient voltage for charge and if the battery bank requires charging When charging the PVLC 40 cycles the charge relay every 4 minutes to re verify open circuit PV charge voltage to avoid discharging the batteries through the PV panels when low light conditions occur The charge re connection time is varied by the micro processor to optimally reduce the charge rate for nearly or fully charged batteries The PVLC 40 internal temperature com
3. LC 40 TROUBLESHOOTING TIPS Problem Module doesn t click on and there is sunlight on the PV panels Solution _ Verify that the battery voltage is less than 12 75V or 25 5V on a 24V DC system and that the open PV voltage is greater than 16V or 32V If both conditions are met wait for a 4 minute delay period Problem Module clicks every several minutes Solution This is the normal operating sequence Problem Module charges for a few seconds then shuts off for 4 minutes Solution The Batteries are fully charged and the charge current was at maximum output It may also mean that the Batteries have a poor connection or a bad cell with high internal resistance Problem Module switches on for 1 or 2 minutes and then is off for a much longer period of time Solution This is also normal if the battery is at or nearly fully charged and the PV charge current is at or near maximum Problem The battery load has been left on and the storage battery has discharged below 8V DC The PV system is not charging when the load is turned off Solution The PVLC 40 needs at least 9 5V DC from the battery to operate properly Place the panel in direct sunlight and jumper the battery and PV terminals for a few minutes thus bypassing the charge controller allowing the battery voltage to rise to at least 9 5V DC Disconnecting the jumper will allow the PVLC 40 to charge the battery up to normal levels Problem The module is set for li
4. cations ATKINSON ELECTRONICS INC REV 12 03 Web Site www atkinsonelectronics com Distributed by
5. ghting control and at dusk fails to turn on lights Solution The PVLC 40 checks the battery voltage at dusk to see if batteries are greater than 12V or 24V DC sufficient to run lights If not lock out lighting relay until the solar panels have charged battery above 12V DC 24V DC LOW VOLTAGE DISCONNECT APPLICATION Photo Voltaic j Panel Array A 24 SWITCH POSITION 0 j 40 Amp Maximum j f PVLC 40 Atkinson Electronics Inc j BLACK J 6 B charco Xk Af ucHtine 12 24V ee RELAY T RELAY 40 Amp Maximum SDs Fao oo 66 aoe vO Oa Os Sana BATTERY T d1 YELLOW ren orn BANK p m r RED use se Upplie 12V 24V When using the PVLC 40 in a low voltage disconnect application rather than lighting control set the switch to the zero 0 position Such applications include solar powered instrumentation or a telecommunications site where sensitive electronic equipment could be damaged by low battery voltage The startup instructions may be followed the only difference is the load relay will turn on and stay on except for a low battery voltage condition The presence of PV voltage has no effect on the LVD operation A sister product PVLVD 15 provides more flexibility in low voltage disconnect solar PV appli
6. is sufficient PV voltage gt 16V 32V then after a 12 second delay the PV relay will click out the switch position with O being 10 clicks it then checks the Battery voltage if its below the turn on threshold the charge relay energizes after a delay of 5 seconds If battery voltage is above the turn on threshold then it will wait until it drops below the threshold If the switch setting is in the zero 0 position both relays will energize WIRING DIAGRAM LIGHTING CONTROL APPLICATION j Photo Voltaic y Panel Array l j 12V 24V 12 24V LIGHT j 40 Amp Maximum 40 Amp Maximum PVLC 40 Atkinson Electronics Inc ANNAN J POV VV VOT ee 12 24V LOAD o9 CHARGING RELAY 40 Amp Maximum oe a j Q OF Orange BATTERY L YELLOW BANK j 50Amp Fuse User Supplied RED 12V 24V The PVLC 40 charges the battery from the solar PV panel during the day At dusk the PVLC 40 senses the low PV panel voltage and turns on the light for the selected time period The light will automatically turn off at dawn In the Sign option the PVLC 40 also turns on the light two hours before dawn ATKINSON ELECTRONICS INC REV 12 03 Web Site www atkinsonelectronics com Distributed by 40 AMP 12 24V IN LINE PV CHARGE amp LIGHTING CONTROLLER PV
7. pensation adjusts the charge threshold voltages for optimum charge of the battery bank based on temperatures between 0 C to 45 C For a complete chart refer to the PVCM 10 or PVCM 20 data sheets The PVLC 40 lighting controller monitors PV panel voltage and initiates the light on cycle when a dusk voltage threshold has been reached and energizes the lighting relay It remains energized until either the time selection is reached the PV voltage indicates dawn or the battery voltage drops below 11 0V or 22 0V DC for 5 continuous minutes If the lighting relay drops out on low battery voltage or is below 12V 24V at dusk it will not re energize until the battery has been charged up to 12V or 24V DC Ifa sign time range 7 8 9 is selected the lighting relay will turn on for the number of hours selected after dark and turn on again two hours before dawn the next morning The PVLC 40 must operate through one full 24 hour day night cycle after power up before the lighting relay will turn on 2 hours before dawn Selecting 6 all night on the timing switch causes the lights to remain on dusk to dawn subject to the low battery voltage cutout If the timing switch selection is zero 0 the PVLC 40 will operate as a PV charge controller with low voltage disconnect The lighting relay will immediately turn on and will turn off when battery voltage falls below 11 0V or 22 0V DC The dusk to dawn lighting functions are bypas
8. rify that the initial battery voltage is greater than 11V or 22V and PV voltage is greater than 14V or 28V Twelve seconds after power up the charge relay red LED will click the number of times per the switch position with O being 10 If the switch did not get set to the desired position disconnect the PVLC 40 s B negative wire and reset switch Reconnect the PVLC 40 s B negative wire and verify the desired timing range If the open circuit PV voltage is above 16V 32V and the battery voltage is below the turn on threshold then the PV charge relay will energize charging the battery Every 4 minutes the PV relay will drop out momentarily to test for the presence of adequate PV charge sunlight To test the lighting function disconnect the PV wire from terminal after a short delay 5 7 seconds the lighting relay yellow LED should energize the lighting load Now disconnect the PVLC 40 B wire and reconnect the PV wire to PV terminal and then reconnect the black wire Mount the PVLC 40 securely with screws and coat the switch with silicone to insure that the entire module is waterproof Waterproof the electrical connections with silicone or grease Note The PVLC 40 is powered by either the battery or PV voltage which ever is greater The charge relay is only powered from the PV voltage If there is insufficient PV voltage when powering up the PVLC 40 the charge relay will only click once after a 12 second delay If there
9. sed in the Low Voltage Disconnect mode ATKINSON ELECTRONICS INC Web Site www atkinsonelectronics com SPECIFICATIONS SIZE WEIGHT 3 3 W x 5 5 L x 1 65 H ENCLOSURE Epoxy potted in PVC plastic MOUNTING Two 1 2 8 screws POWER 8 to 30 V DC from storage battery LOAD CAPACITY 40 Amps 28V DC NO contact CONNECTION 1 4 Bolt Connectors Ring Connector Molex BCL814PL 1 4 Spade Battery Negative FLOODED BATTERY On 12 7V DC Off 14 2V DC PV CHARGE Room temperature 20 25 C SEALED BATTERY Blue Jumper Clipped PV CHARGE On 12 4V DC Off 13 9V DC TIMING RANGE 6 After Dusk Settings 2 Hrs to All Night SWITCHES 3 Sign Settings 2 Hrs Before Dawn 10 Settings 1 Low Voltage Disconnect Option See next page for adjustments TEMPERATURE COMPENSATION 0 040V C for 12V systems CURRENT DRAW Continuous lt 5 3mA Values same During charge or lighting for 12V amp 24V 60mA Nominal Higher for LVD Mode O LED INDICATION Red Charging Mode Yellow Lighting Cycle on MINIMUMS 9 5V DC battery for PV charge 11V DC battery for lighting relay PV Charge Current 80mA Open PV 16V 12V system TEMPERATURE 30 to 75 C RELAY LIFE 100 million mechanical operations Double the 12V system values for 24V system values ORDERING INFORMATION PVLC 40 Photo Voltaic charge amp Lighting Controller module Relay contacts rated for 40 Amps 28V DC REV 12 03 Distributed by 40 AMP
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