Warning
- For unqualified personnel, do not open the cover of the INVERTER. Otherwise, it may cause accident injuries.
- Disconnect the connection wires from the utility power and the battery bank before performing the maintenance.
- Do not wear metallic rings such as watches when performing the maintenance.
- Wear anti-static bracelets when removing, maintaining the PCBA. Otherwise the CPU, IC and MOSFET will be damaged by the static.
- The maintenance tools must be reliable and insulated.
- When performing the finished unit and PCBA tests after the maintenance, you'd better start up the INVERTER with DC voltage stabilizing power supply in current limit mode, which may help the PCBA avoid heavy damages.
- Make sure that the PE wire of all the probes are on the same electric phase when using a multi-channel oscilloscope.
1. SPECIFICATION (1.2KVA - 3.6KVA)
| Model | PIP-LC INVERTER-1.2K | PIP-LC INVERTER-2.4K | PIP-LC INVERTER-3.6K | ||
|---|---|---|---|---|---|
| Capacity | VA / Watt | 1.2KVA / 800W | 2.4KVA / 1600W | 3.6KVA / 2400W | |
| Input | Voltage Range | Nominal Voltage | 220Vac; 110Vac | ||
| Acceptable Voltage Range | 120-275Vac ; 60-135Vac | ||||
| Frequency | 50Hz / 60Hz ( 45Hz - 70Hz) | ||||
| Line Low Transfer | 120VAC ± 2% ; 60VAC ± 2% | ||||
| Line Low Return | 130VAC ± 2% ; 65VAC ± 2% | ||||
| Line High Transfer | 275VAC ± 2% ; 135VAC ± 2% | ||||
| Line High Return | 260VAC ± 2% ; 130VAC ± 2% | ||||
| Output | Voltage | Voltage | 220Vac (230V or 240VAC re-settable via LCD panel); 110Vac (115V or 120VAC re-settable via LCD panel) | ||
| Voltage Regulation (Batt. Mode) | < 3% RMS for entire battery voltage range | ||||
| Frequency | 50Hz or 60Hz | ||||
| Frequency Regulation (Batt. Mode) | ± 0.1Hz | ||||
| Power Factor | 0.67 | ||||
| Waveform | Pure Sinewave | ||||
| Effiecincy | > 75% | ||||
| Transfer Time | Overload Protection | Line Mode | Circuit Breaker | ||
| Battery Mode | 110% ~ 150% for 30 sec. , >150% for 200ms | ||||
| Typical | < 8 ms. | ||||
SPECIFICATION (5KVA - 8KVA)
| Model | PIP-LC INVERTER-5K | PIP-LC INVERTER-6K | PIP-LC INVERTER-8K | ||||
|---|---|---|---|---|---|---|---|
| Capacity | VA / Watt | 5KVA / 4000W | 6KVA / 6000W | 8KVA / 8000W | |||
| Input | Voltage Range | Nominal Voltage | 220Vac; 110Vac | 220Vac only | |||
| Acceptable Voltage Range | 120-275Vac ; 60-135Vac | 120-275Vac | |||||
| Frequency | 50Hz / 60Hz ( 45Hz - 70Hz) | 50Hz / 60Hz ( 45Hz - 70Hz) | |||||
| Line Low Transfer | 120VAC ± 2% ; 60VAC ± 2% | 120VAC ± 2% | |||||
| Line Low Return | 130VAC ± 2% ; 65VAC ± 2% | 130VAC ± 2% | |||||
| Line High Transfer | 275VAC ± 2% ; 135VAC ± 2% | 275VAC ± 2% | |||||
| Line High Return | 260VAC ± 2% ; 130VAC ± 2% | 260VAC ± 2% | |||||
| Output | Voltage | Voltage | 220Vac (230V or 240VAC re-settable via LCD panel); 110Vac (115V or 120VAC re-settable via LCD panel) | ||||
| Voltage Regulation (Batt. Mode) | < 3% RMS for entire battery voltage range | ||||||
| Frequency | 50Hz or 60Hz | ||||||
| Frequency Regulation (Batt. Mode) | ± 0.1Hz | ||||||
| Power Factor | 0.8 | 1.0 | |||||
| Waveform | Pure Sinewave | ||||||
| Effiecincy | > 80% | ||||||
| Transfer Time | Overload Protection | Line Mode | Circuit Breaker | ||||
| Battery Mode | 110% ~ 150% for 30 sec. , >150% for 200ms | ||||||
| Typical | < 8 ms. | ||||||
Additional Specifications (1.2KVA - 3.6KVA)
| Model | PIP-LC INVERTER-1.2K | PIP-LC INVERTER-2.4K | PIP-LC INVERTER-3.6K | |
|---|---|---|---|---|
| Battery Voltage | 12Vdc | 24Vdc | ||
| Backup Time (at full load) | long time available | |||
| Max. Charging Current (5 steps selectable) | > 40A | > 50A | ||
| Display | LCD | INVERTER status, I/P&O/P Voltage Frequency, Load%, Battery Voltage & %, Charge current, Temperature, Model | ||
| LED | Normal (Green), Warning (Yellow), Fault (Red) | |||
| Audible Alarm | Battery Mode | Beeping every 4 seconds | ||
| Low Battery | Beeping every second | |||
| INVERTER Fault | Beeping Continuously | |||
| Overload | Beeping twice per second | |||
| Environment | Operation Temperature | 0-40 degree C; 32-104 degree F | ||
| Relative Humidity | 0-95% non-dondensing | |||
| Audible Noise | Less than 55dBA (at 1M) | |||
| Physical | Net Weigh (Kgs) | 14 | 21 | 23 |
| (WxHxD)mm Rack Mount | 440*132*290 | 440*132*360 | 440*132*360 | |
| (WxHxD)mm Wall Mounted | 298*400*150 | 298*450*190 | 298*450*190 | |
2. Reference Data
| Item | Data |
|---|---|
| Battery Voltage(Zero Load) | 1.2KVA : 10.5V ~ 13.5V 2.4K / 3.6K / 5KVA : 20V ~ 27V 6K / 8KVA : 40V ~ 54V |
| + 5V | 4.95V ~ 5.05V |
| +12V | +11.8V ~ +13.8V |
| -12V | -11.8V ~ -13.8V |
| Balance voltage(zero load) | < 5mV |
| Inverter Voltage(Zero Load) | +/- 3% |
3. PIP-LC INVERTER 1.2KVA TEST POINT
Description of the Printed Circuit Board (PCB) for the PIP-LC Inverter 1.2KVA, highlighting key test points: GND (Ground), + 5V (Positive 5 Volt supply), and - 12V (Negative 12 Volt supply).
4. PIP-LC INVERTER 2.4K / 3.6KVA TEST POINT
Description of the Printed Circuit Board (PCB) for the PIP-LC Inverter 2.4K / 3.6KVA, indicating test points: GND (Ground), + 5V (Positive 5 Volt supply), and - 12V (Negative 12 Volt supply).
5. PIP-LC INVERTER 5.0K / 6.0K / 8.0KVA TEST POINT
Description of the Printed Circuit Board (PCB) for the PIP-LC Inverter 5.0K / 6.0K / 8.0KVA, showing test points: GND (Ground), + 5V (Positive 5 Volt supply), and - 12V (Negative 12 Volt supply). Another GND point is also indicated.
6. Maintenance Tools
- A suitcase or a toolbox
- Wire cutters and clamps
- Balance equipments, current limiting resistors, an electric soldering iron, tubes and clamp terminals with different specifications
- A multimeter and an oscilloscope (or current meter)
- Other tools in common use: Diagonal pliers, Snipe nose pliers, Cross screwdrivers (150mm/75mm length), Straight screwdrivers (75mm length) and PVC insulating tapes etc.
- PCB and some other materials.
7. Trouble shooting
| Problems | LCD Display | Solutions |
|---|---|---|
| AC Abnormal | I/P Polarity ERR | Check(Only 120V Series) : AC INPUT N – GND VOL > 1V Solutions : Improve the grounding of AC main. |
| AC Fail | (Under inverter mode, but can not transfer to line mode.) | Check : a. AC Voltage : *** 60V > AC Voltage > 135V (120V Series) *** 120V > AC Voltage > 270V (220V Series) b. AC Frequency : *** 45Hz > AC Frequency > 70Hz If no, replace control & Main PCB. |
| DC Abnormal | DC_BUS Fail | Check : (Battery Voltage) *** 1.2K : Battery Voltage > 15.0V *** 2.4K / 3.6K / 5K : Battery Voltage > 30.0V *** 6K / 8K : Battery Voltage > 60.0V If no, replace battery. |
| Charger Fail | Check : (Charger Voltage) *** 1.2K : 11.2V > CHG. VOL > 15V *** 2.4K/3.6K/5K: 22.5V > CHG. VOL > 30V ***6K/8K: 45V > CHG. VOL > 60V Solutions : (OFF AC) *** Under cold start, if Inverter Mode OK, replace the Control PCB *** Under cold start, if Inverter Mode N.G., replace control & Main PCB | |
| Over Temperature | Temp Fail | Check : *** If The Temperature Of the PIP-LC INVERTER is really high *** Remove Some Unnecessary Loads *** That The Fan is Normal *** The Temperature Sensor Circuit.. Solutions: *** Restart the INVERTER. If N.G., replace the control PCB |
| Fan Abnormal | Fan Fail | Check : *** That The Fan is Normal *** The Fan's Sensor Circuit. Solutions: *** Restart the INVERTER. If N.G., replace the control & main PCB |
| Over Load | Over Load | Check : *** If LCD Display Output Power > 110 % *** Remove Some Unnecessary Loads to be Less Than 90% *** Restart The INVERTER to Enter Into the Inverter mode |
| Inverter Abnormal | Inverter Fail | *** Remove the load Check : *** 1.2K ~ 3.6K Check PSDR Board DC Fuse Damaged; *** 5K ~ 8K :Check Fuse Board DC Fuse Damaged; *** Check if power PCB is damaged.. Solutions: *** If DC Fuse or Power Components Damaged, Please replace the main PCB *** If no damaged, the INVERTER may be output shorted or output inrush current cause the inverter protection. Please restart the INVERTER. |
| Can't Cold Start | Check: a. LCD Display Panel : *** Check it LCD Display Panel is connected or inserted properly. b. Battery Voltage (for initial start and auto restart) : 1.2K : 10.5V > Batt. VOL 2.4K / 3.6K / 5K : 21.5V > Batt. VOL 6K / 8K : 40V > Batt. VOL Solutions : *** Replace the battery |
8. PIP-LC other information
(1) Battery Voltage
| Battery Voltage. | Battery Low Alarm | Battery Low Shutdown | DC range |
|---|---|---|---|
| 1.2K | 10.8V | 10.3V | 10.5V~14.5Vdc |
| 2.4K/3.6K/5K | 21.5V | 20.0V | 20V~29.3Vdc |
| 6K/8K/10K | 42.5V ~ 43.0V | 40.0V | 40V~58.5Vdc |
(2) High Temperature FAULT alarm
| INVERTER internal temperature | 60°C |
| HEAT SINK temperature | 80°C |
(3) Inverter Mode Current (Zero Load)
1.2K: 3.8A(Reference), 2.4K : 2.8A(Reference), 3.6K : 3.3A(Reference)
5.0K : 4.0A(Reference), 6.0K : 2.8A(Reference), 8.0K : 4.3A(Reference)
11.0K: 3.0~3.5A (Reference)
(4) Inverter Inrush Current
| Model Name | Inrush Current On 220Vac, 5cycle | Inrush Current = KVA |
|---|---|---|
| 1.2KVA | 9.5A | 2.1KVA |
| 2.4KVA | 19A | 4.2KVA |
| 3.6KVA | 24.5A | 5.4KVA |
| 5KVA | 33A | 7.2KVA |
| 6KVA | 72A | 15.8KVA |
| 8KVA | 84A | 18.5KVA |
| 11KVA (customized) | 66A | 14.5KVA |
9. PIP-LC SERIES INVERTER DIAGRAM
This is a schematic diagram of the PIP-LC Series Inverter. It shows the input lines labeled "I/P L" and "I/P N" connected through relays ("LINE L I/P RELAY", "LINE N I/P RELAY") to a "MAIN X'FER" (Main Transformer). The output side shows connections for "O/P C.T", "O/PL", and "O/PN". An "Option" connection is also indicated.
10. INVERTER 1.2K / 2.4K / 3.6KVA Power driven diagram
This diagram illustrates the power flow for 1.2K, 2.4K, and 3.6KVA inverters. It includes: SOLAR PANEL I/P connected to a SOLAR PANEL CONNECTOR (+ and - terminals). EXT BATT. I/P (Battery input, + and - terminals) connected to the SOLAR CHARGE CNTL. F.G (Functional Ground) terminal. An I/P & O/P TERMINAL block with connections for I/P L, I/P N, O/P L, O/P N. The SOLAR CHARGE CNTL is connected to the battery. The output of the SOLAR CHARGE CNTL and the battery are connected to the MAIN X'FER (Main Transformer). The MAIN X'FER is connected to the POWER STAGE, which is part of the HOME MAIN PCB. Various connection points are labeled P2, P5, P1, P6, P3, P4. I/P C.B (Input Circuit Breaker) is also shown.
11. INVERTER 5.0K / 6.0K / 8.0KVA Power driven diagram
This diagram shows the power flow for 5.0K, 6.0K, and 8.0KVA inverters. It features: I/P & O/P TERMINAL block with input (I/P L, I/P N) and output (O/P L, O/P N) connections. EXT BATT. I/P: Battery input (+ and - terminals). SOLAR PANEL I/P: Solar panel input (+ connector, - connector). F.G (Functional Ground) terminal. The system includes a SOLAR CHARGE CNTL, a MAIN X'FER (Main Transformer), and two POWER STAGE units (POWER STAGE 2, POWER STAGE 1) connected to the MAIN POWER PCB. Connections are made via FUSE PCB 1, FUSE RLY PCB J1, and SOLAR PCB 2. Specific connection points are labeled P10, P7, P4, P3, P2, P1.
