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Troubleshooting
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Summary of Contents for Epever Tracer-AN
- Page 1 Tracer-AN (10~40A) Troubleshooting BEIJING EPSOLAR TECHNOLOGY CO., LTD 2021...
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Page 2: Table Of Contents
Tool List Voltage Setpoint Notes Common Fault List Troubleshooting - Connect Battery CONTENTS Troubleshooting - Connect Load Troubleshooting - Connect PV Troubleshooting - Connect temp sensor Appendix... -
Page 3: Tool List
Tool List ① Lead-Acid battery ④ DC Load 12V or 24V ② Tracer-AN(10A~ ⑤ Multimeter 40A) Series Controller ③ PV panel or DC power Note: Make sure all tools are working fine except the Voc >17V for 12V battery; Controller to be checked. -
Page 4: Voltage Setpoint Notes
Voltage Setpoint Notes Note 1: In the following troubleshoot steps, below default lead-acid voltage setpoints (Sealed) are used.If the voltages in the controller to be tested had been altered, take the altered volatge setpoints. - Page 5 EPEVER controller manual) are used.If the voltages in the controller to be tested had been altered, take the altered volatge setpoints. Note 2: Below is the default voltage setpoints in EPEVER controllers for Lithium batteries, refer to the table below if the battery is of lithium type.
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Page 6: Common Fault List
Common Fault List Faults Causes Solutions Notes ①Wrong or loose battery connection; ①Correct/tighten the connection； Cannot power on ②Battery voltage lower than 8.5V； ②Replace it with a battery of higher voltage； ③Controller is faulty. ③Replace the Controller. ①Charge the battery, the alarm will disappear when ①Battery over discharged；... -
Page 7: Troubleshooting - Connect Battery
Troubleshooting Connect Battery Check if the connection is correct and reliable, make sure there is no polarity inversion. Check if the battery volage is higher than 8.5V. The controller is faulty if battery voltage is higher than 8.5V. If the battery voltage is lower than 8.5V, change the battery with a new one with voltage higher than 8.5V and contiune the test. - Page 8 Troubleshooting Connect Battery Check the battery voltage on the charger terminal with multimerter and compare it with the reading on the charger： a. The difference is within ±1.5% → ok； b. The difference is ±3% or more）→ charger faulty Possible reasons： ①...
- Page 9 Troubleshooting Connect Battery Check if the voltage is lower than the LVD voltage.(settable, the default value is 11.1V for 12V system, 22.2V for 24V system.) <11.1V，replace the battery or recharge the battery before continuing the test.（12.6V<V <16V），Power on again and check if the alarm will be cleared: →...
- Page 10 Troubleshooting Connect Battery Check if the voltage is higher than the OVD voltage.(settable, the default value is 16V for 12V system, 32V for 24V system.) >32V，Replace the battery or discharge the battery <32V ），power on again before continuing the test（22.2V<V and check the alarm will be cleared: →...
- Page 11 Troubleshooting Connect Battery Check PV voltage on the charger terminal with multimeter, it it is close to the battery voltage, it is very likely the anti- reverse MOS has been broken down, refer to the Appendix for further checking.
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Page 12: Troubleshooting - Connect Load
Troubleshooting Connect Load Browse the LCD by short pressing the SELECT button, check if the load working mode is Manual (Timer1=117, Timer2=2n) , if not, change it to Manual mode and press the ENTER button to check if the load can be turned on. NOTE ：Change the load working mode：Browse the LCD page to load page, long press “ENTER”... - Page 13 Troubleshooting Connect Load Check if the load connection is reliable and has no reverse polarity. Check Load terminal voltage with multimeter： → a.No voltage Controller faulty（driver circuit or auxilary power circuit is broken）； ≈ V b. voltage ok (V )→ battery voltage does not Load match with the required votlage of loads, change the...
- Page 14 Troubleshooting Connect Load ≈ V Check Load terminal voltage and if V and cannot be turned Load off, that means the Controller is faulty. Please refer to Appendix to check the load MOS.
- Page 15 Troubleshooting Connect Load Disconnect the load and press the ENTER button to start the output, check if the alarm will be cleared:： → a. Alarm persists Faulty controller, check load MOS； → b. Alarm cleared Load issue (short or overload), change with a small load and test again.
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Page 16: Troubleshooting - Connect Pv
Troubleshooting Connect PV Check if the connection is correct and reliable, make sure there is no polarity inversion. Check if PV voltage is in the range V +2V< V < 46V(or 92V)，if yes, the controller is faulty. Note：Max Voc for Tracer**06A is 46V@25C，Max Voc for Tracer**10AN is 92V@25C... - Page 17 Troubleshooting Connect PV Check if battery voltage is higher than OVD voltage (settable, the default value is 16V for 12V system, 32V for 24V system.)， if yes, discharge it, test again and check if the alarm will be cleared when battery voltage is lower than OVR. (settable, the default value is 15V for 12V system, 30V for 24V system.)：...
- Page 18 Troubleshooting Connect PV Check if the connection is correct and reliable, make sure there is no polarity reversal. Check if the battery is lower than 13.2V on LCD (settable, default 13.2V for 12V system, default 26.4V for 24V system）： a. Yes → Go to next step； b.
- Page 19 Troubleshooting Connect PV → a.Cleared External light source interference； Sampling circuit (or calibration) and/or → b.Persist charge MOS, and/or anti-reverse MOS is faulty, refer to Appendix to check the MOS...
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Page 20: Troubleshooting - Connect Temp
Troubleshooting Connect Temperature Sensor Press the SELECT button and check if the battery temperature is higher than 65℃，if the value flashes, cool it down to 55℃ or below and check if the charging and discharging will be recovered： → a. Recovered Battery over temperature；... -
Page 21: Appendix
Appendix 1.Possible reasons for bolts and nuts or cable connection issues： ① Violent vibration during transportation； ② Insects； ③ Flexible cable quality issue, or processing issue, factory’s fault. 2.Possible reasons for PCBA corruption： ① Installed in a dusty, moisture or corruptive environment.②... - Page 22 Appendix Possible reasons for fuse to fail： ① PV polarity ok, but battery polarity is reversed； ② The charger is put in a closed and hot environment； ③ MOS element shorted and lead to fuse broken； Note：Refer to the next slide to check the MOS;...
- Page 23 Appendix Possible reasons for the anti-reserse MOS get dameaged： ① PV polarity ok, but battery polarity is reversed. ② Battery voltage exceeds the allowed range ③ The charger is put in a closed and hot environment ④ MOS is shorted by water, metal, etc NOTE：If the resistance between G and S is 0~1KΩ，...
- Page 24 Appendix Possible reasons for the charge MOS get dameaged ① PV polarity ok, but battery polarity is reversed. ② PV Voc and power exceed the allowed ratings； ③ Surge on the battery terminal (e.g., inverter )； ④ The charger is put in a closed and hot environment ⑤...
- Page 25 Appendix Possible reasons for the discharge MOS get dameaged ① Hgh surge from inductive or capacitive loads. ② The charger is put in a closed and hot environment. ③ MOS is shorted by water, metal, etc. NOTE：If the resistance between G and S is 0~1KΩ ，the MOS is damaged;...
- Page 26 Appendix Possible reasons for the MCU or auxilary power broken： ① Electrostatic charge； ② PV Voc or power exceeds the allowed ratings； ③ The charger is put in a closed and hot environment. ④ MOS or auxilary power broken and causes the MCU broken ⑤...
- Page 27 Appendix Possible reasons for the TVS broken： ① External SPD is not added when the charger is installed in a lightning-rich area； ② PV Voc exceeds the limit； ③ TVS quality issue Method 1 Method 2...
- Page 28 Appendix...
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