SERVICE MANUAL

1.2K ~ 8.0KVA INVERTER

Warning:

1. For unqualified personnel, do not open the cover of the INVERTER. Otherwise, it may cause
accident injuries.

2. Disconnect the connection wires from the utility power and the battery bank before
performing the maintenance.

3. Do not wear metallic rings such as watches when performing the maintenance.

4. Wear anti-static bracelets when removing, maintaining the PCBA. Otherwise the CPU, IC and
MOSFET will be damaged by the static.

5. The maintenance tools must be reliable and insulated.

6. 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.

7. Make sure that the PE wire of all the probes are on the same electric phase when using a
multi-channel oscilloscope.
1. SPECIFICATION
PIP-LC PIP-LC PIP-LC
Model
INVERTER-1.2K INVERTER-2.4K INVERTER-3.6K
Capacity VA / Watt 1.2KVA / 800W 2.4KVA / 1600W 3.6KVA / 2400W

Nominal Voltage 220Vac; 110Vac

Acceptable Voltage
120-275Vac ; 60-135Vac
Range

Frequency 50Hz / 60Hz ( 45Hz - 70Hz)

Input Line Low Transfer 120VAC ± 2% ; 60VAC ± 2%
Voltage
Range
Line Low Return 130VAC ± 2% ; 65VAC ± 2%

Line High Transfer 275VAC ± 2% ; 135VAC ± 2%

Line High Return 260VAC ± 2% ; 130VAC ± 2%

220Vac (230V or 240VAC re-settable via LCD panel);

Voltage
110Vac (115V or 120VAC re-settable via LCD panel)
Voltage Regulation
< 3% RMS for entire battery voltage range
(Batt. Mode)
Frequency 50Hz or 60Hz
Frequency Regulation
± 0.1Hz
(Batt. Mode)
Output
Power Factor 0.67

Waveform Pure Sinewave

Effiecincy > 75% > 80%

Line Mode Circuit Breaker

Overload
Protection
Battery Mode 110% ~ 150% for 30 sec. , >150% for 200ms
Transfer
Typical < 8 ms.
Time
 PIP-LC PIP-LC PIP-LC
Model
INVERTER-1.2K INVERTER-2.4K INVERTER-3.6K
Capacity VA / Watt 1.2KVA / 800W 2.4KVA / 1600W 3.6KVA / 2400W

Battery Voltage 12Vdc 24Vdc 24Vdc

Backup Time (at full load) long time available

Battery
Max. Charging Current
> 40A > 50A
(5 steps selectable)

INVERTER status, I/P&O/P Voltage Frequency, Load%,

LCD
Display
Battery Voltage & %, Charge current, Temperature, Model
LCD
LED Normal (Green), Warning (Yellow), Fault (Red)

Battery Mode Beeping every 4 seconds

Low Battery Beeping every second

Audible
Alarm
INVERTER Fault Beeping Continuously

Overload Beeping twice per second

Operation Temperature 0-40 degree C; 32-104 degree F

Environment Relative Humidity 0-95% non-dondensing

Audible Noise Less than 55dBA (at 1M)

Net Weigh (Kgs) 14 21 23

Physical (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

Specifications are subjected to change without prior notice.

 PIP-LC PIP-LC PIP-LC
Model
INVERTER-5K INVERTER-6K INVERTER-8K
Capacity VA / Watt 5KVA / 4000W 6KVA / 6000W 8KVA / 8000W

Nominal Voltage 220Vac; 110Vac 220Vac only

Acceptable Voltage
120-275Vac ; 60-135Vac 120-275Vac
Range
50Hz / 60Hz
Frequency 50Hz / 60Hz ( 45Hz - 70Hz)
( 45Hz - 70Hz)
Input
Voltage Line Low Transfer 120VAC ± 2% ; 60VAC ± 2% 120VAC ± 2%
Range
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%

220Vac (230V or 240VAC re-settable via LCD panel);

Voltage
110Vac (115V or 120VAC re-settable via LCD panel)
Voltage Regulation
< 3% RMS for entire battery voltage range
(Batt. Mode)
Frequency 50Hz or 60Hz
Frequency Regulation
± 0.1Hz
(Batt. Mode)
Output
Power Factor 0.8 1.0

Waveform Pure Sinewave

Effiecincy > 80%

Line Mode Circuit Breaker

Overload
Protection
Battery Mode 110% ~ 150% for 30 sec. , >150% for 200ms
Transfer
Typical < 8 ms.
Time
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

+ 5V
GND

- 12V
4. PIP-LC INVERTER 2.4K / 3.6KVA TEST POINT

+ 5V
GND

- 12V
5. PIP-LC INVERTER 5.0K / 6.0K / 8.0KVA TEST POINT :

GND + 5V

- 12V

GND
6. Maintenance Tools
1、A suitcase or a toolbox

2、Wire cutters and clamps

3、Balance equipments, current limiting resistors, a electric soldering iron, tubes and clamp
terminals with different specifications

4、A multimeter and a oscilloscope（or current meter）

5、Other tools in common use：Diagonal pliers、Snipe nose pliers、Cross screwdrivers

(150mm/75mm length), Straight screwdrivers (75mm length) and PVC insulating tapes
etc.

6、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 Check :
(Under inverter a. AC Voltage :
mode, but can not
transfer to line *** 60V > AC Voltage > 135V (120V Series)
mode.)
*** 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 Temp Fail Check :

Temperature
*** 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 Inverter Fail *** Remove the load

Abnormal
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 60℃
temperature
HEAT SINK temperature 80℃

(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 Inrush Current = KVA
On 220Vac, 5cycle
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

1 2 3 4

D D

LINE L I / P RELAY
I /P L
O / P C.T
O/ P L

C C

MAIN X'FER

B B

LINE N I / P RELAY

I /P N
O/ P N

Title
A A
Option
Size Number Revision
A4
Date: 27-Feb-2008 Sheet of
File: D:\JAMES\..\HOME架架架.SCH Drawn By:
1 2 3 4
10. INVERTER 1.2K / 2.4K / 3.6KVA Power driven diagram

SOLAR PANEL CONNECTOR

SOLAR PANEL I / P +
-

SOLAR
CHARGE
CNTL.

BATT -

EXT BATT. I / P
-
BATT +
+
P2 P5 P1 P6 P3 P4
F.G
O/P N
MAIN X'FER
O/P L
I / P & O / P TERMINAL
I/P N
POWER STAGE

I/P L
HOME MAIN PCB
I / P C.B
 11. INVERTER 5.0K / 6.0K / 8.0KVA Power driven diagram

1 2 3 4

F.G
O/P N
O/P L
D I / P & O / P TERMINAL D
I/P N
I/P L

I / P C.B

FUSE P10 P7 P4 P3 P2 P1
BATT +
+

O/P-N
O/P-L

INV - N

I/P-N
INV - L
I/P-L
EXT BATT. I / P PCB 1
C C

- BATT -
FUSE
RLAY PCB J1
PCB 2
SOLAR
CONNECTOR
SOLAR PANEL I / P
+
-

MAIN POWER PCB

MAIN
X'FER J8
B B

POWER STAGE 2
SOLAR
CHARGE
CNTL.

POWER STAGE 1

Title
A A

Size Number Revision

A4
Date: 31-Jan-2008 Sheet of
File: D:\JAMES\..\HOME5K ~ 8K PCB連連架.SCH
Drawn By:
1 2 3 4