MPP Solar PIP3624MT User manual

PIP3624MT/PIP5648MT
SOLAR INVERTER / CHARGER
Version: 1.0
User Manual

Table Of Contents
ABOUT THIS MANUAL ..................................................................................................................... 1
Purpose ................................................................................................................................................1
Scope ...................................................................................................................................................1
SAFETY INSTRUCTIONS.................................................................................................................. 1
INTRODUCTION .............................................................................................................................. 2
Features ...............................................................................................................................................2
Basic System Architecture ......................................................................................................................2
Product Overview ..................................................................................................................................3
INSTALLATION................................................................................................................................ 4
Unpacking and Inspection ......................................................................................................................4
Preparation ...........................................................................................................................................4
Mounting the Unit..................................................................................................................................4
Battery Connection ................................................................................................................................5
AC Input/Output Connection ..................................................................................................................7
PV Connection.......................................................................................................................................8
Final Assembly ....................................................................................................................................10
Communication Connection ..................................................................................................................10
OPERATION................................................................................................................................... 11
Power ON/OFF ....................................................................................................................................11
Operation and Display Panel.................................................................................................................11
LCD Display Icons................................................................................................................................12
LCD Setting.........................................................................................................................................13
Display Setting ....................................................................................................................................18
Operating Mode Description .................................................................................................................22
Battery Equalization Description ...........................................................................................................24
Fault Reference Code...........................................................................................................................25
Warning Indicator................................................................................................................................26
CLEARANCE AND MAINTENANCE FOR ANTI-DUST KIT ................................................................ 27
Overview ............................................................................................................................................27
Clearance and Maintenance..................................................................................................................27
SPECIFICATIONS .......................................................................................................................... 28
Table 1 Line Mode Specifications ..........................................................................................................28
Table 2 Inverter Mode Specifications.....................................................................................................29
Table 3 Charge Mode Specifications ......................................................................................................30
Table 4 General Specifications ..............................................................................................................30
TROUBLE SHOOTING .................................................................................................................... 31

1
ABOUT THIS MANUAL
Purpose
This manual describes the assembly, installation, operation and troubleshooting of this unit. Please read
this manual carefully before installations and operations. Keep this manual for future reference.
Scope
This manual provides safety and installation guidelines as well as information on tools and wiring.
SAFETY INSTRUCTIONS
WARNING: All safety instructions in this document must be read, understood and
followed. Failure to follow these instructions will result in death or serious injury.
1. Before using the unit, read all instructions and cautionary markings on the unit, the batteries and all
appropriate sections of this manual.
2. CAUTION --To reduce risk of injury, charge only deep-cycle lead acid type rechargeable batteries.
Other types of batteries may burst, causing personal injury and damage.
3. Do not disassemble the unit. Take it to a qualified service center when service or repair is required.
Incorrect re-assembly may result in a risk of electric shock or fire.
4. To reduce risk of electric shock, disconnect all wirings before attempting any maintenance or cleaning.
Turning off the unit will not reduce this risk.
5. CAUTION –Only qualified personnel can install this device with battery.
6. NEVER charge a frozen battery.
7. For optimum operation of this inverter/charger, please follow required spec to select appropriate cable
size. It’s very important to correctly operate this inverter/charger.
8. Be very cautious when working with metal tools on or around batteries. A potential risk exists to drop
a tool to spark or short circuit batteries or other electrical parts and could cause an explosion.
9. Please strictly follow installation procedure when you want to disconnect AC or DC terminals. Please
refer to INSTALLATION section of this manual for the details.
10. One piece of 150A fuse is provided as over-current protection for the battery supply.
11. GROUNDING INSTRUCTIONS -This inverter/charger should be connected to a permanent grounded
wiring system. Be sure to comply with local requirements and regulation to install this inverter.
12. NEVER cause AC output and DC input short circuited. Do NOT connect to the mains when DC input
short circuits.
13. Warning!! Only qualified service persons are able to service this device. If errors still persist after
following troubleshooting table, please send this inverter/charger back to local dealer or service center
for maintenance.
14. WARNING: Because this inverter is non-isolated, only three types of PV modules are acceptable:
single crystalline, poly crystalline with class A-rated and CIGS modules. To avoid any malfunction, do
not connect any PV modules with possible current leakage to the inverter. For example, grounded PV
modules will cause current leakage to the inverter. When using CIGS modules, please be sure NO
grounding.
15. CAUTION: It’s requested to use PV junction box with surge protection. Otherwise, it will cause
damage on inverter when lightning occurs on PV modules.

2
INTRODUCTION
This is a multi-function inverter, combining functions of inverter, solar charger and battery charger to offer
uninterruptible power support in a single package. The comprehensive LCD display offers user-configurable
and easy-accessible button operations such as battery charging current, AC or solar charging priority, and
acceptable input voltage based on different applications.
Features
Pure sine wave inverter
Configurable input voltage ranges for home appliances and personal computers via LCD control panel
Configurable battery charging current based on applications via LCD control panel
Configurable AC/Solar Charger priority via LCD control panel
Compatible to utility mains or generator power
Auto restart while AC is recovering
Overload / Over temperature / short circuit protection
Smart battery charger design for optimized battery performance
Basic System Architecture
The following illustration shows basic application for this unit. It also required the following devices to have a
complete running system:
Generator or Utility mains.
PV modules
Consult with your system integrator for other possible system architectures depending on your requirements.
This inverter can power various appliances in home or office environment, including motor-type appliances
such as tube light, fan, refrigerator and air conditioners.
Figure 1 Hybrid Power System

3
Product Overview
1. LCD display
2. Function buttons with status indication
3. Power on/off switch
4. AC input
5. AC output
6. PV input
7. Battery input
8. Circuit breaker
9. USB communication port
10. RS-232 communication port

4
INSTALLATION
Unpacking and Inspection
Before installation, please inspect the content. Be sure that nothing inside the package is damaged. You should
have received the following items inside the package:
Inverter x 1
User manual x 1
RS232 Communication cable x 1
Software CD x 1
DC Fuse x 1
Preparation
Before connecting all wirings, please take off bottom cover by removing four screws as shown below.
Mounting the Unit
Consider the followings before selecting your placements:
Do not mount the inverter on flammable construction materials.
Mount on a solid surface
Install the inverter at eye level in order to allow easy LCD display
readout.
For proper air circulation and heat dissipation, allow a clearance
of approx. 20 cm to the side and approx. 50 cm above and below
the unit.
The ambient temperature should be between 0°C and 55°C to
ensure optimal operation.
The recommended orientation is to adhered to the wall vertically.
Be sure to keep other objects and surfaces as shown in the
diagram to guarantee sufficient heat dissipation and to have
enough space for wirings.
SUITABLE FOR MOUNTING ON CONCRETE OR OTHER
NON-COMBUSTIBLE SURFACE ONLY.

5
Install the unit by screwing two screws. It’s recommended to use M4 or M5 screws.
Battery Connection
CAUTION: For safety operation and regulation compliance, it’s requested to install a separate DC over-current
protector or disconnection device between battery and the inverter. It may not be necessary to have a
disconnection device in some applications, however, it’s still recommended to have over-current protection
installed. Please refer to typical amperage as required.
WARNING! All wiring must be performed by a qualified electrical technician.
WARNING! It's very important for system safety and efficient operation to use
appropriate cables for battery connection. To reduce risk of injury, please use the
proper recommended cable in the table below.
Recommended battery cable size:
Model
Typical
Amperage
Wire Size
Cable mm2
(each)
Ring Terminal
Torque
Value
Dimensions
D (mm)
L (mm)
PIP3624MT
167A
2*4AWG
25
8.4
33.2
5 Nm
PIP5648MT
129.6A
1*2AWG
38
8.4
39.2
2*4AWG
25
8.4
33.2
Please follow below steps to implement battery connection:
1. PIP3624MT model supports 24VDC system and PIP5648MT model supports 48VDC system. Connect all
battery packs as below chart. It is recommend to connect minimum of 100Ah capacity battery for
PIP3624MT model and 200Ah capacity battery for PIP5648MT model.
2. Prepare four battery wires for PIP3624MT model and two or four battery wires for PIP5648MT model
depending on cable size (refer to recommended cable size table). Apply ring terminals to your battery wires
Ring terminal:

6
and secure it to the battery terminal block with the bolts properly tightened. Refer to battery cable size
for torque value. Make sure polarity at both the battery and the inverter is correctly connected and ring
terminals are secured to the battery terminals.
PIP3624MT / PIP5648MT
PIP5648MT
WARNING: Shock Hazard
Installation must be performed with care due to high battery voltage in series.
CAUTION!! Do not place anything between inverter terminals and the ring terminals.
Otherwise, overheating may occur.
CAUTION!! Do not apply anti-oxidant substance on the terminals before terminals are securely
tightened.
CAUTION!! Before making final DC connection or closing DC breaker/disconnector, be sure that
the positive (+) must be connected to positive (+) and negative (-) connected to negative (-).

7
AC Input/Output Connection
CAUTION!! Before connecting to AC input power source, please install a separate AC breaker between the
inverter and the AC input power source. This will ensure that the inverter can be safely disconnected during
maintenance and fully protected from over-current. The recommended spec of AC breaker is 32A
CAUTION!! There are two power terminal blocks with “IN” (Input) and “OUT” (Output) markings. DO NOT
mistakenly connect to the wrong connectors.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It’s very important for system safety and efficient operation to use appropriate cable size for AC
input connection. To reduce risk of injury, please use the proper recommended cable size as below.
Suggested cable requirement for AC wires
Model
Gauge
Cable (mm2)
Torque Value
PIP3624MT
12 AWG
4
1.2 Nm
PIP5648MT
10 AWG
6
1.2 Nm
Please follow these steps to implement AC input/output connection:
1. Before making AC input/output connection, be sure to enable DC protector or disconnector first.
2. Remove insulation sleeves for about 10mm for the five screw terminals.
3. Insert AC input wires according to polarities indicated on terminal block and tighten the terminal screws. Be
sure to connect the grounding wire ( ) first.
→Ground (yellow-green)
L→LINE (brown or black)
N→Neutral (blue)
WARNING:
Be sure that AC power source is disconnected before attempting to hardwire it to the unit.
4. This inverter is equipped with dual-output. There are four terminals (L1/N1, L2/N2) available on output port.
It’s to set up through LCD program or monitoring software to turn on and off the second output. Refer to
“LCD setting” section for the details.
Insert AC output wires according to polarities indicated on terminal block and tighten terminal screws. Be
sure to connect PE protective conductor ( ) first.
→Ground (yellow-green)
L1→LINE (brown or black)
N1→Neutral (blue)
L2→LINE (brown or black)
N2→Neutral (blue)

8
5. Make sure the wires are securely connected.
PV Connection
PV Connection
CAUTION: Before connecting to PV modules, please install a separately DC circuit breaker between the
inverter and PV modules.
WARNING! It's very important for system safety and efficient operation to use appropriate cable for PV
module connection. To reduce risk of injury, please use the proper recommended cable size shown below.
Model
Wire Size
Cable (mm2)
Torque value（max）
PIP3624MT/PIP5648MT
1 x 12AWG
4
1.2 Nm
WARNING: Because this inverter is non-isolated, are accepted: single crystalline, poly crystalline with class
A-rated and CIGS modules. To avoid any malfunctions, do not connect any PV modules with possible current
leakage to the inverter. For example, grounded PV modules will cause current leakage to the inverter. When
using CIGS modules, please be sure NO grounding connection.
CAUTION: It’s requested to use PV junction box with surge protection. Otherwise, it will cause damage on
inverter when lightning occurs on PV modules.
PV Module Selection:
When selecting proper PV modules, please be sure to consider the following parameters:
1. Open circuit Voltage (Voc) of PV modules not to exceeds maximum PV array open circuit voltage of the
inverter.
2. Open circuit Voltage (Voc) of PV modules should be higher than the start-up voltage.
INVERTER MODEL
PIP3624MT
PIP5648MT
Max. PV Array Power
5000W
6000W
Max. PV Array Open Circuit Voltage
500Vdc
PV Array MPPT Voltage Range
60Vdc~450Vdc
Start-up Voltage
60Vdc +/- 10Vdc
Max. PV Current
27A
CAUTION: Appliances such as air conditioner required at least 2~3 minutes to spool up because it needs to have
enough time to balance refrigerant gas inside of circuits. If a power shortage occurs and recovers in a short
period of time, it may cause damage to your connected appliances. To prevent this from happening, please check
with manufacturer of air conditioner if it has time-delay function before installation. Otherwise, this inverter will
trigger overload fault and cut off output to protect your appliance but sometimes it may still causes damage to
the air conditioner.

9
Take the 250Wp PV module as an example. After considering above two parameters, the recommended
module configurations are listed in the table below.
Solar Panel Spec.
(reference)
- 250Wp
- Vmp: 30.1Vdc
- Imp: 8.3A
- Voc: 37.7Vdc
- Isc: 8.4A
- Cells: 60
SOLAR INPUT
Q'ty of panels
Total input
power
Min in series: 2 pcs, max. in series: 12 pcs.
2pcs in series
2 pcs
500W
4pcs in series
4 pcs
1000W
6 pcs in series
6 pcs
1500W
8 pcs in series
8 pcs
2000W
12 pcs in series
12 pcs
3000W
8 pieces in series and 2 sets in parallel
16 pcs
4000W
10 pieces in series and 2 sets in parallel
20 pcs
5000W
11 pieces in series and 2 sets in parallel
(only for PIP5648MT model)
22 pcs
5500W
12 pieces in series and 2 sets in parallel
(only for PIP5648MT model)
24 pcs
6000W
Take the 555Wp PV module as an example. After considering above two parameters, the recommended
module configurations are listed in the table below.
Solar Panel Spec.
(reference)
- 555Wp
- Imp: 17.32A
- Voc: 38.46Vdc
- Isc: 18.33A
- Cells: 110
SOLAR INPUT
Q'ty of panels
Total input
power
Min in series: 2 pcs, max. in series: 11 pcs.
2pcs in series
2 pcs
1110W
4pcs in series
4 pcs
2220W
6 pcs in series
6 pcs
3330W
8 pcs in series
8 pcs
4440W
9 pcs in series
9 pcs
4995W
10 pcs in series (only for PIP5648MT model)
10 pcs
5550W
11 pcs in series (only for PIP5648MT model)
11 pcs
6000W
PV Module Wire Connection
Please take the following to implement PV module connection:
1. Remove insulation sleeve for about 7 mm on your positive and negative
wires.
2. We recommend using bootlace ferrules on the wires for optimal
performance.
3. Check polarities of wire connections from PV modules to PV input screw
terminals. Connect your wires as illustrated below.
Recommended tool: 4mm blade screwdriver

10
Final Assembly
After connecting all wirings, put the bottom cover back by fixing four screws as shown below.
Communication Connection
Please use supplied communication cable to connect to inverter and PC. Insert bundled CD into a computer and
follow on-screen instruction to install the monitoring software. For the detailed software operation, please
check user manual of software inside of CD.

11
OPERATION
Power ON/OFF
Once the unit has been properly installed and the batteries are connected well, simply press On/Off switch
(located on the side of the inverter) to turn on the unit.
Operation and Display Panel
The operation and the LCD module, shown in the chart below, includes four touchable buttons with status
indication and a LCD display, indicating the operating status and input/output power information.
Touchable buttons with indication
Function Key
Description
To exit setting mode
To go to previous selection
To go to next selection
To confirm the selection in setting mode or enter setting mode
LED Indicator
Color
Solid/Flashing
Messages
Green
Solid On
Unit is working normally (without any
warning or fault codes and charging).
Green/Yellow
Alternatively
flashing
Battery is charging.
Yellow
Solid On
Warning code appears.
Red
Solid On
Fault mode.
LCD display
Touchable operation buttons with status
indication. Buttons will light up different color to
display operation status.

12
LCD Display Icons
Icon
Function description
Input Source Information
Indicates the AC input.
Indicates the PV input
Indicate input voltage, input frequency, PV voltage, charger current, charger
power, battery voltage.
Configuration Program and Fault Information
Indicates the setting programs.
Indicates the warning and fault codes.
Warning: flashing with warning code.
Fault: lighting with fault code
Output Information
Indicate output voltage, output frequency, load percent, load in VA, load in
Watt and discharging current.
Battery Information
Indicates battery level by 0-24%, 25-49%, 50-74% and 75-100% in battery
mode and charging status in line mode.
In AC mode, it will present battery charging status.
Status
Battery voltage
LCD Display
Constant
Current mode /
Constant
Voltage mode
<2V/cell
4 bars will flash in turns.
2 ~ 2.083V/cell
Bottom bar will be on and the other three
bars will flash in turns.
2.083 ~ 2.167V/cell
Bottom two bars will be on and the other
two bars will flash in turns.
> 2.167 V/cell
Bottom three bars will be on and the top
bar will flash.
Floating mode. Batteries are fully charged.
4 bars will be on.

13
In battery mode, it will present battery capacity.
Load Percentage
Battery Voltage
LCD Display
Load >50%
< 1.85V/cell
1.85V/cell ~ 1.933V/cell
1.933V/cell ~ 2.017V/cell
> 2.017V/cell
Load < 50%
< 1.892V/cell
1.892V/cell ~ 1.975V/cell
1.975V/cell ~ 2.058V/cell
> 2.058V/cell
Load Information
Indicates overload.
Indicates the load level by 0-24%, 25-49%, 50-74% and 75-100%.
0%~24%
25%~49%
50%~74%
75%~100%
Mode Operation Information
Indicates unit connects to the mains.
Indicates unit connects to the PV panel.
Indicates load is supplied by utility power.
Indicates the utility charger circuit is working.
Indicates the DC/AC inverter circuit is working.
Indicates second output is working.
Mute Operation
Indicates unit alarm is disabled.
LCD Setting
After pressing and holding ENTER button for 3 seconds, the unit will enter setting mode. Press “UP” or “DOWN”
button to select setting programs. And then, press “ENTER”button to confirm the selection or ESC button to
exit.

14
Setting Programs:
Progra
m
Description
Selectable option
00
Exit setting mode
Escape
01
Output source priority:
To configure load power
source priority
Utility first (default)
Utility will provide power to the
loads as first priority.
Solar and battery energy will
provide power to the loads only
when utility power is not available.
Solar first
Solar energy provides power to
the loads as first priority.
If solar energy is not sufficient to
power all connected loads, Utility
energy will supply power to the
loads at the same time.
SBU priority
Solar energy provides power to
the loads as first priority.
If solar energy is not sufficient to
power all connected loads, battery
energy will supply power to the
loads at the same time.
Utility provides power to the loads
only when battery voltage drops
to either low-level warning voltage
or the setting point in program 12.
02
Maximum charging current:
To configure total charging
current for solar and utility
chargers.
(Max. charging current =
utility charging current +
solar charging current)
60A (default)
Setting range is from 10A to 120A.
Increment of each click is 10A.
03
AC input voltage range
Appliances (default)
If selected, acceptable AC input
voltage range will be within
90-280VAC.
UPS
If selected, acceptable AC input
voltage range will be within
170-280VAC.
05
Battery type
AGM (default)
Flooded
User-Defined
If “User-Defined” is selected,
battery charge voltage and low DC
cut-off voltage can be set up in
program 26, 27 and 29.
06
Auto restart when overload
occurs
Restart disable (default)
Restart enable

15
07
Auto restart when over
temperature occurs
Restart disable (default)
Restart enable
09
Output frequency
50Hz (default)
60Hz
10
Output voltage
220V
230V (default)
240V
11
Maximum utility charging
current
Note: If setting value in
program 02 is smaller than
that in program in 11, the
inverter will apply charging
current from program 02 for
utility charger.
30A (default)
Setting range is 2A, then from 10A
to 100A. Increment of each click is
10A.
12
Setting voltage point back to
utility source when selecting
“SBU priority” in program 01.
Available options in PIP3624MT model:
23.0V (default)
Setting range is from 22V to
25.5V. Increment of each click is
0.5V.
Available options in PIP5648MT model:
46V (default)
Setting range is from 44V to 51V.
Increment of each click is 1V.
13
Setting voltage point back to
battery mode when selecting
“SBU priority” in program 01.
Available options in PIP3624MT model:
Battery fully charged
27V (default)
Setting range is from 24V to 29V. Increment of each click is 0.5V.
Available options in PIP5648MT model:
Battery fully charged
54V (default)
Setting range is from 48V to 58V. Increment of each click is 1V.
16
Charger source priority:
To configure charger source
priority
If this inverter/charger is working in Line, Standby or Fault mode,
charger source can be programmed as below:
Utility first
Utility will charge battery as first
priority.
Solar energy will charge battery
only when utility power is not
available.

16
Solar first
Solar energy will charge battery as
first priority.
Utility will charge battery only
when solar energy is not available.
Solar and Utility (default)
Solar energy and utility will charge
battery at the same time.
Only Solar
Solar energy will be the only
charger source no matter utility is
available or not.
If this inverter/charger is working in Battery mode, only solar
energy can charge battery. Solar energy will charge battery if it's
available and sufficient.
18
Alarm control
Alarm on (default)
Alarm off
19
Auto return to default display
screen
Return to default display
screen (default)
If selected, no matter how users
switch display screen, it will
automatically return to default
display screen (Input voltage
/output voltage) after no button is
pressed for 1 minute.
Stay at latest screen
If selected, the display screen will
stay at latest screen user finally
switches.
20
Backlight control
Backlight on (default)
Backlight off
22
Beeps while primary source is
interrupted
Alarm on (default)
Alarm off
23
Overload bypass:
When enabled, the unit will
transfer to line mode if
overload occurs in battery
mode.
Bypass disable (default)
Bypass enable
25
Record Fault code
Record enable (default)
Record disable
26
Bulk charging voltage
(C.V voltage)
PIP3624MT default setting: 28.2V
PIP5648MT default setting: 56.4V

17
If self-defined is selected in program 5, this program can be set
up. Setting range is from 25.0V to 31.5V for PIP3624MT model
and 48.0V to 61.0V for PIP5648MT model. Increment of each click
is 0.1V.
27
Floating charging voltage
PIP3624MT default setting: 27.0V
PIP5648MT default setting: 54.0V
If self-defined is selected in program 5, this program can be set
up. Setting range is from 25.0V to 31.5V for PIP3624MT model
and 48.0V to 61.0V for PIP5648MT model. Increment of each click
is 0.1V.
29
Low DC cut-off voltage:
If battery power is only
power source available,
inverter will shut down.
If PV energy and battery
power are available,
inverter will charge
battery without AC
output.
PIP3624MT default setting: 21.0V
PIP5648MT default setting: 42.0V
If self-defined is selected in program 5, this program can be set
up. Setting range is from 21.0V to 24.0V for PIP3624MT model
and 42.0V to 48.0V for PIP5648MT model. Increment of each click
is 0.1V. Low DC cut-off voltage will be fixed to setting value no
matter what percentage of load is connected.
30
Battery equalization
Battery equalization
Battery equalization disable (default)
If “Flooded” or “User-Defined” is selected in program 05, this
program can be set up.
31
Battery equalization voltage
PIP3624MT default setting: 29.2V
PIP5648MT default setting: 58.4V
Setting range is from 25.0V to 31.5V for PIP3624MT model and
48.0V to 61.0V for PIP5648MT model. Increment of each click is
0.1V.
33
Battery equalized time
60min (default)
Setting range is from 5min to 900min.
Increment of each click is 5min.

18
34
Battery equalized timeout
120min (default)
Setting range is from 5min to 900 min.
Increment of each click is 5 min.
35
Equalization interval
30days (default)
Setting range is from 0 to 90 days.
Increment of each click is 1 day
36
Equalization activated
immediately
Enable
Disable (default)
If equalization function is enabled in program 30, this program can
be set up. If “Enable” is selected in this program, it’s to activate
battery equalization immediately and LCD main page will shows
“ ”. If “Disable” is selected, it will cancel equalization function
until next activated equalization time arrives based on program 35
setting. At this time, “ ” will not be shown in LCD main page.
60
Low DC cut off voltage on
second output
PIP3624MT default
setting: 21.0V
PIP5648MT default setting: 42.0V
If “User-defined” is selected in program 05, this setting range is
from 21.0V to 31.5V for PIP3624MT model and from 42.0V to
61.0V for 56KW model. Increment of each click is 0.1V.
61
Setting discharge time on the
second output
Disable (Default)
Setting range is disable and then from
0 min to 990 min. Increment of each
click is 5 min.
*If the battery discharge time
achieves the setting time in program
61 and the program 60 function is not
triggered, the second output will be
turned off.
Display Setting
The LCD display information will be switched in turns by pressing “UP” or “DOWN” key. The selectable
information is switched as below order: input voltage, input frequency, PV voltage, charging current, charging
power, battery voltage, output voltage, output frequency, load percentage, load in Watt, load in VA, load in
Watt, DC discharging current, main CPU Version.
If second output is on, all screens will show “P” icon in the screen.