AMC PM-SCC-80 AM User Manual

POWER MASTER

**Premium MPPT Series**

SOLAR CHARGE CONTROLLER

PM-SCC-50AM / PM-SCC-80AM

PM-SCC-40AMW / PM-SCC-80AMW

Installation and Operation Manual

Chapter 1 Installation

1.1 Loads Requirement

The Premium MPPT Series plays a major role in planning your PV system. The first
step in planning an efficient PV system is to calculate the load requirement. In order
to calculate the anticipated load requirement, it is important to determine average and
peak load consumption. The possible load growth should also be taken into
consideration when planning the load requirement because loads hardly remain static
and they grow more frequently than they reduce.

1.2 Battery Voltage System

After the estimate of the power requirement, the required power from the battery will
be the next consideration in planning the system. According to the basic rule of the
electricity, “Current is the power divided by voltage”, when the power amount
increases, it is suggested to raise the battery voltage so the current amount will
decrease. The principle is based on the larger amount of current is, the more expensive
the circuit protection is. In an example of the 96 watt load, it draws 4 amps at 24V
battery system but it draws only 2 amps at 48V system.

1.3 PV Array Voltage

As the Premium MPPT Series is a smart DC to DC converter design, the specification
of a PV array is much like sizing a grid tie inverter. Installers choose the max. and min.
Vmp and Voc of each string and how many strings are needed.

1.4 Maximum Voc

The maximum operating voltage of the PM-SCC-50AM and PM-SCC-80AM is 140
Vdc and of the PM-SCC-40AMW and PM-SCC-80AMW is 240Vdc. The protection
will be active to shut down the unit when the operating voltage is higher. PV array
manufacturers has the published data sheet with rated voltage and current as well as
the current and temperature coefficients. The rated Voc is measured in the temperature
of 25℃ so when calculated at lower temperature such as 0℃, 25% increase of the
rated Voc is expected. At different temperature location of installation, the maximum
Voc of the module should be determined by the Voc voltage temperature coefficient
and after that, a series string voltage may be determined as well.

1-1

1.5 Shunt (BCS)

The Shunt is an optional component and it is required for the Premium MPPT Series
to achieve to the optimal operation levels and it functions as a hub for connecting
measurement sensors. The main purpose of the shunt is to allow the Premium MPPT
Series to measure current drawing into and out of the battery.
DC load centers is where the Premium MPPT Series Shunt is recommend to be placed
at. Or installing it in an electrical enclosure is also acceptable. Locating the Shunt is
essential for safety. Please note that the capacity of the Shunt is 50mV, 500Amp. See
page 2-3 for wiring connection terminal.

1.6 Battery Temperature Sensor (BTS-3)

The battery temperature sensor BTS-3 is used to compensate charging by adjusting
charging voltage up or down according to the temperature detected by the sensor, see
page 2-3 for wiring connection terminal.
The Premium MPPT Series requires BTS-3 to be connected for all charging features
to be available. Premium MPPT Series is able to operate without the sensor but
Absorption Trigger set points will be lower and equalization stage will be disabled.
BTS-3 can be mounted on the battery posts.

1.7 Battery Voltage Sensing (BVS)

Connecting the red wire to a battery positive bus and the black wire to a battery
negative bus within the DC load center, see page 2-3 for wiring connection terminal.
Two sense wires may be connected to compensate possible battery cable loss during
charging. Be sure to observe correct polarity when installing voltage sense wires or
damage will result.

1.8 Wiring Diagram

Before starting to initiate the Premium MPPT Series, keep all breakers in the OFF
position. When you are ready to start the Premium MPPT Series, turn on ONLY the
Battery breaker. Do NOT turn on the PV breaker until the instruction on LCD shows
during Premium MPPT Series initialization. The internal electric circuit of the
Premium MPPT Series can only be powered by the batteries.
The installation environment of Premium MPPT Series should be in an area of good
ventilation. Never locate the Premium MPPT Series in a poorly ventilated battery area
because batteries emit the explosive gases. Do not locate the Premium MPPT Series
within 1 meters of the batteries to ensure the safety condition.
See next page for the wiring diagram of PM-SCC-80AM as an example.

1-2

1-3

1.9 Installation Steps

Example: PM-SCC-80AM

Before starting the PM-SCC-80AM, keep the breakers, controllers in OFF position.

1. Locate the battery and Premium MPPT Series and make sure the safety distance is

at least 1 meter long.

2. Install a 100 Amp rated DC breaker and connect it to the Battery + .

3. Install a Shunt of rated 500A/50mV and connect it to the Battery –.

4. Connect the BAT+ terminal of the Premium MPPT Series to the DC breaker.

5. Connect the GND terminal (next to BAT+) of the Premium MPPT Series to the

Shunt.

6. Install a 90 Amp rated DC breaker and connect it to the PV array + and also to the

PV+ terminal of the PM-SCC-80AM.

7. Connect the PV array – directly to the GND terminal (next to PV+) of the

PM-SCC-80AM.

8. Connect the EARTH terminal of the PM-SCC-80AM to the system ground.

9. To measure the current drawing into and out of the battery, connect the BCS+

terminal of PM-SCC-80AM to the Shunt + and connect the BCS- terminal of
PM-SCC-80AM to the Shunt –.

10. To compensate the battery charging due to the temperature difference, connect the

BTS+ terminal of PM-SCC-80AM to BTS-3 Battery Temperature Sensor +and
connect the BTS- terminal of PM-SCC-80AM to BTS-3 Battery Temperature
Sensor –.

※ BTS-3 should be located in the battery posts –.

11. To compensate the possible battery cable loss, connect the BVS+ terminal of the

PM-SCC-80AM to Battery +, connect the BVS- terminal of the PM-SCC-80AM
to Battery – .

12. Finally, connect the DC load+ to the Battery+ and DC load – to Battery – through

the Shunt.

1-4

Chapter 2 Wiring

2.1 Front Panel Display

LCD Meter

LED
Indicator

PB 4

PB 8 PB 7 PB 6 PB 5

PB 3 PB 2 PB 1

8 Push Buttons

Push buttons Name Description

PB1

PB2

Data write-in key

UP key to increment setting values.
UP key to go to the next selection or constant.

PB3

DOWN key to decrement setting values.
DOWN key to go to the last selection or constant.

2-1

PB4

Reset key to reset the fault.
ESC key to return to the last selection level.

PB5

PB6

PB7

PB8

4 LED Indicators

LEDs

FAULT Solid Red

Flashing/

Solid

Quick function key to the Main Menu: Data Log

Quick function key to the Main Menu: Programming

Quick function key to the Main Menu: Initialize

Quick function key to the Main Menu: Operation

Description

Read the LCD meter for fault condition displayed.
4 fault conditions could be displayed as follows:

ERROR!!!

High Input Voltage

Premium MPPT Over-Temp.

ERROR!!!

EQUAL

Flashing

Orange

Flashing

CHARGE

Green

READY Solid Green

Premium MPPT Series unit is in equalization mode. Refer to
constant B-09~B-12 for the setting details.

Premium MPPT Series unit is in charge mode. This indicates that it
is functioning properly.

When the voltage from the PV array is first received, the Premium
MPPT Series is in standby mode to charge.

ERROR!!!

Parallel COM Failed

ERROR!!!

Battery Over-Temp.

LCD Meter

1 LCD Meter of 20 x 2 characters is built in each Premium MPPT Series unit.

2-2

2.2 Control Terminal Connection

A B C D E F

IHGJ K L

M N O

Fig-5

Connections Details

A BVS- Connecting terminal to Battery Voltage feedback Negative
B BTS- Connecting terminal for Battery Temperature Sensor Negative
C BVS- Connecting terminal for optional Shunt Negative
D BVS+ Connecting terminal to Battery Voltage feedback Positive
E BTS+ Connecting terminal for Battery Temperature Sensor Positive

F BCS+ Connecting terminal for optional Shunt Positive

P Q R S T

G Parallel IN Connections for parallel input from last Premium MPPT Series
H Parallel OUT Connections for parallel output

I Remote Connecting terminal to Remote Panel Display

2-3 2-4

J MA1 Connecting terminal for the contact A of auxiliary 1
K MC1 Connecting terminal for the common contact of auxiliary 1
L MB1 Connecting terminal for the contact B of auxiliary 1

M MA2 Connecting terminal for the contact A of auxiliary 2

N MC2 Connecting terminal for the common contact of auxiliary 2
O MB2 Connecting terminal for the contact B of auxiliary 2

P PV+ Connecting terminal for Solar Array Positive
Q GND Connecting terminal for Solar Array Negative
R BAT+ Connecting terminal for battery cable Positive

S GND Connecting terminal for battery cable Negative
T EARTH Connecting for ground

2.3 Parallel Connection

The parallel connection of Premium MPPT Series can be up to 16 units (1 Master and 15 Slaves) and in the parallel system, there is only one
Shunt which needs to be connected to the Master unit to measure the total accumulated current.

F-01=Master

F-01=Slave

-

=

F-01=Slave
F-02=3

Fig-6

2-5

Chapter 3 User Constants

3.1 The following is the structur e of user constants.

GROUP CONSTANTS

MENU Operation

Initialize A-01 Access Level

Programming B Battery Setup B-01 Set Battery Voltage

C MPPT Setup C-01 Set MPPT Type

D Auxiliary Relay 1 D-01 Set Aux Relay 1 Mode

E Auxiliary Relay 2 E-01 Set Aux Relay 2 Mode

F Parallel Setup F-01 Premium MPPT Parallel MODE

O Operator O-01 Set Clock Mode

Data Log G-01 EnergyHarvestToday 1

IN =xxx.xV xxx.xAmps

U-00

OUT =xxx.xV xxx.xAmps
U-01 Input Voltage
U-02 Input Current
U-03 Output Voltage
U-04 Output Current
U-05 EnergyHarvestToday 1
U-07 EnergyHarve stToday 2
U-08 Stage of Charger
U-09 Premium MPPT Da te
U-10 Premium MPPT Time
U-11 Premium MPPT Temperature
U-12 Battery SOC
U-13 Battery Current
U-14 Batter y Amp Hours
U-15 Battery Temperature
U-16 Parallel COMM Status
U-17 Seri al Number

A-02 Init Parameters
A-03 Password 1
A-04 Password 2

B-02 Set Battery Type
B-04 Set Battery Capacity
B-05 BAT. MAX Charge Amps
B-06 Set Absorption Voltage
B-07 Set Absorption Time
B-08 Set Float Voltage
B-09 Set Equalize Voltage
B-10 Set MAX EQU. Time
B-11 Set Days Between EQU
B-12 Manual Equalize

C-02 Set Scan Frequency
C-03 Set Percentage VOC
C-04 Percentage EveryTime
C-05 Set Hold Input Volts

D-02 Aux RY1 ON Condition
D-03 AuxRY1 OFF Condition
D-04 Aux RY1 MIN. ON time

E-02 Aux RY2 ON Condition
E-03 AuxRY2 OFF Condition
E-04 Aux RY2 MIN. ON time

F-02 Premium MPPT Parallel Addr

O-02 Set Premium MPPT Time
O-03 Set Premium MPPT Date
O-04 Model Number
O-05 Turn OFF Backlight T
O-06 FAN Tes t
O-07 Software Version
O-08 ***Bootloader***

G-02 EnergyHarvestToday 2
G-03 Set Day LOG # (1-90)
G-04 Day LOG # : kWHr
G-05 Day LOG # @ FLOAT

Average Last xx Days
G-07

xxxx kWHr xxxx Ahr

Average Last xx Days
G-08

FLOAT xx : xx

3-1

3. 2 The following is the “Initialization Stage Flow Chart”.

3-2

SAVE: If SAVE is selected by pressing key, the controller will save the entered

settings and operate with them

RCLL (RECALL): Pressing key will return to the last setting prior to entering

setup.

DFLT (DEFAULT): If DFLT is selected by pressing

key, the controller will revert

to and operate at default settings based on the original voltage,
battery type and capacity entered in the initialization process.

3-3

3.3 The following is the “Operation Stage Flow Chart”.

Main Menu

Main Menu-Operation
Menu Constants

3-4

Main Menu-Initialize
Menu Constants Constants Edit Data Enter

Main Menu-Programming Group B
Menu Group Constants Constants Edit Data Enter

3-5

Main Menu-Programming Group C
Menu Group Constants Constants Edit Data Enter

Main Menu-Programming Group D, D-01= ON or OFF
Menu Group Constants Constants Edit Data Enter

3-6

Main Menu-Programming Group D, Auxiliary 1 ON/OFF Condition Setting
Menu Group Constants Constants Edit Data Enter

*** Main Menu ***

Operation

▲

*** Main Menu ***

Initialize

DATA

▲

*** Main Menu ***

Programming

ENTER

ESC

RESET

Group B

Battery Setup

▲▼

Group C

MPPT Setup

▲▼

Group D

Auxiliary Relay 1

▲▼

Group E

Auxiliary Relay 2

▲▼

Group F

Network Setup

▲▼

Group O
Operator

DATA

ENTER

ESC

RESET

Set Aux Relay 1 Mode

D-01=OFF

▲▼

Aux RY1 ON Condition

D-02= <000.0 Volts

▲▼

Aux RY1 OFF Condition

D-03= <000.0 Volts

▲▼

Aux RY1 MIN. ON time

D-04= 00:00

DATA

ENTER

ESC

RESET

DATA

ENTER

ESC

RESET

DATA

ENTER

ESC

RESET

Set Aux Relay 1 Mode

D-01= “OFF＂

▲▼

Set Aux Relay 1 Mode

D-01= Solar Voltage

Aux RY1 ON Condition

D-02= <“000.0＂Volts

▲▼

Aux RY1 ON Condition

< 010.0 Volts

D-02=

Aux RY1 OFF Condition

D-03=

>“000.0＂Volts

▲▼

Aux RY1 ON Condition

D-03=> 016.0 Volts

DATA

ENTER

DATA

ENTER

DATA

ENTER

DATA

ENTER

Entry Accepted

Entry Accepted

Entry Accepted

Entry Accepted

Main Menu-Programming Group E, E-01= ON or OFF
Menu Group Constants Constants Edit Data Enter

*** Main Menu ***

Operation

▲

*** Main Menu ***

Initialize

DATA

▲

*** Main Menu ***

Programming

ENTER

ESC

RESET

Group B

Battery Se tup

Group C

MPPT Setup

▲

▼

▲▼

Group D

Auxiliary Relay 1

▲▼

Group E

Auxiliary R ela y 2

▲▼

Group F

Network Setup

▲▼

Group O

Operator

DATA

ENTER

ESC

RESET

Set Aux Relay 2 Mode

E-01=OFF

3-7

DATA
ENTER

ESC

RESET

Set Aux Relay 2 Mode

E-01= “OFF＂

▼

Set Aux Relay 2 Mode

▼

E-01= ON

DATA

ENTER

DATA

ENTER

Entry Accepted

Entry Accepted

Main Menu-Programming Group E, Auxiliary 2 ON/OFF Condition Setting
Menu Group Constants Constants Edit Data Enter

3-8

Main Menu-Programming Group F
Menu Group Constants Constants Edit Data Enter

3-9

Main Menu-Programming Group O
Menu Group Constants Constants Edit Data Enter

3-10

Main Menu-Data Log
Menu Constants Constants Edit Data Enter

3-11

Chapter 4 Constant List

Main Menu Group Constant LCD Display Range Unit

0.1V

0.1A

0.1V

0.1A

0.1V

0.1A

1kWHr

1AHr

─ ─

Operation U

U-00

IN

OUT
U-01 Input Voltage
U-02 Input Current
U-03 Output Voltage
U-04 Output Current

U-05 EnergyHarvestToday 1

U-07 EnergyHarvestToday 2
U-08 Stage of Charger
U-09 Premium MPPT Date
U-10 Premium MPPT Time Hr: Min: Sec
U-11 Premium MPPT Temperature
U-12 Battery SOC 1~100% 1%

=xxx.xV xxx.xAmps
=xxx.xV xxx.xAmps

─

─

─

─

─

─

─

Hr:Min ─

─

─ ─

MM/DD/YY ─ ─

─

1℃ ─

Factory

Setting

─

─

─

─

─

─

─

Remark Page

5-1

5-1
5-1
5-1
5-1

5-1

5-2
5-2
5-2
5-2
5-2

NOTE 1 5-2

Initialize A

Programming B

─

U-13 Battery Current
U-14 Battery Amp Hours
U-15 Battery Temperature
U-16 Parallel COMM Status
U-17 Serial Number

Constant Set

A-01 Access Level

A-02 Init Parameters

No Initialize
A-03 Password 1 0~9999 1 0 NOTE 2 5-4
A-04 Password 2 0~9999 1 0 NOTE 2 5-4

Battery Setup

B-01 Set Battery Voltage 12/24/36/48

B-02 Set Battery Type

─

─

1℃ ─

─

─ ─

─ ─ ─

Operation

Only

Preset

Setting

GEL,

FLOODED

0.1A

1AHr

─

─

─

─

─

NOTE 1 5-2

─

NOTE 1 5-3
NOTE 1 5-3
NOTE 5 5-3

5-3

Constant

Set

No

Initialize

12 5-5

GEL 5-5

5-4

5-4

AGM

B-04 Set Battery Capacity 0~9990 10Ahr

4-1

─

NOTE 6 5-6

Main Menu Group Constant LCD Display Range Unit

B-05 BAT. MAX Charge Amps 0~80 1A

Programming

B

FLOOD-

B-06

Set Absorption
Volts

B-07 Set Absorption Time

Set Float

B-08

Voltage

B-09 Set Equalize Voltage

ED

AGM 13.7~15.1 0.1V 14.1 5-6

GEL 13.6~15.1 0.1V 14.1 5-6

FLOOD-

ED

AGM 12.8~14.2 0.1V 13.2 5-7

GEL 12.8~14.1 0.1V 13.5 5-7

13.9~15.2 0.1V 14.6 5-6

0~ 99 Hr

1 Min 2 Hr 5-7

59 Min

12.9~14.2 0.1V 13.8 5-7

12V:14.7~16.4
24V:29.4~32.8

0.1V

36V:44.1~49.2

48V:58.8~65.6

Factory

Setting

─

12V:15.6
24V:31.2
36V:46.8
48V:62.4

Remark Page

NOTE 6 5-6

NOTE 3 5-7

C

B-10 Set MAX EQU. Time

B-11 Set Days Between EQU 0~999 1 Day OFF NOTE 3 5-7
B-12 Manual Equalize YES/NO

MPPT Setup

C-01 Set MPPT Type

C-02 Set Scan Frequency 1~4Hr 1 Min 1 Hr NOTE 4 5-8
C-03 Set Percentage VOC 0~100 1% 80 NOTE 4 5-9
C-04 Percentage EveryTime 1~4Hr 1 Min 1 Hr NOTE 4 5-9

C-05 Set Hold Input Volts 0~140/0~240 0.1V

0~

99 Hr 59 Min

P and O

Scan and Hold

Percentage

Hold Input V

1 Min 2 Hr NOTE 3 5-7

─

─

NO NOTE 3 5-8

P and O 5-8

─

NOTE 4

5-9

NOTE 6

4-2

Main Menu Group Constant LCD Display Range Unit

Auxiliary Relay 1

OFF, ON,

Solar Voltage,

Output Volts,

Battery Volts,

OUT Current,

D-01 Set Aux Relay 1 Mode

BATT Current,

─

Temp.

Battery T emp.

Time

Battery SOC,

Output Volts

See

Aux RY 1 ON C on di t i on See Below

Below

Factory

Remark Page

Setting

OFF 5-9

See

5-10

Below

Programming D

D-02

D-03

When D-01= Solar Voltage 0~150/0~250 0.1V 0 5-10
When D-01=Output Volts 0~64 0.1V 0 5-10
When D-01=Battery Volts 0~6 4 0.1V 0 5-1 0

When D-01=OUT Cur rent 0~80 1A 0 5-10
When D-01=BATT Current -500~500 1A 0 5-10

When D-01=Premium MPPT T emp

-20~100
When D-01=Battery Temp. -20~100
When D-01=

00~23 Hr

1℃
1℃

0 5-10
0 5-10

1 Min 0 5-10

Premium MPPT Time

00~59 Min

When D-01=Battery SOC 0~100 1% 0 5-10

AuxRY1 OFF Condition See Below

See

Below

See

5-11

Below
When D-01= Solar Voltage 0~150/0~250 0.1V 0 5-11
When D-01=Output Volts 0~64 0.1V 0 5-11
When D-01=Battery Volts 0~6 4 0.1V 0 5-11
When D-01=OUT Cur rent 0~80 1A 0 5-11
When D-01=BATT Current -500~500 1A 0 5-11

When D-01=Premium MPPT T emp

-20~100

When D-01=Battery Temp. -20~100

4-3

1℃
1℃

0 5-11
0 5-11

Main Menu Group Constant LCD Display Range Unit

When D-01=

00~23 Hr

1 Min 0 5-11

D

D-03

Premium MPPT Time
When D-01=Battery SOC 0~100 1% 0 5-11

00~59 Min

0~23 Hr,

D-04 Aux RY1 MIN. ON time

1 Min 0 5-11

0~59Min

Auxiliary Relay 2

OFF, ON,

Solar Voltage,

Output Volts,

Battery Volts,

OUT Current,

E-01 Set Aux Relay 2 Mode

BATT Current,

─

Temp.

Battery T emp.

Factory

Remark Page

Setting

OFF 5-12

Programming

E

E-02

Time,

Battery SOC,

Output Volts

Aux RY 2 ON C on di t i on See Below

See

Below

See

5-12

Below
When E-01= Solar Voltage 0~150/0~250 0.1V 0 5-12
When E-01=Output Volts 0~64 0.1V 0 5-12
When E-01=Battery Volts 0~64 0.1V 0 5-12
When E-01=OUT Current 0~80 1A 0 5-12
When E-01=BATT Current

When E-01=Premium MPPT Temp

When E-01=Battery Temp. -20~100
When E-01=

-500~500 1A 0 5-12

-20~100

1℃
1℃

0 5-12
0 5-12

00~23 Hr

1 Min 0 5-12

Premium MPPT Time

00~59 Min

When E-01=Battery SOC 0~100 1% 0 5-1 2

AuxRY2 OFF Condition See Below

See

Below

See

5-12

Below

E-03

When E-01= Solar Voltage 0~150/0~250 0.1V 0 5-12
When E-01=Output Volts 0~64 0.1V 0 5-12
When E-01=Battery Volts 0~64 0.1V 0 5-12

4-4

Main Menu Group Constant LCD Display Range Unit

When E-01=OUT Current 0~80 1A 0 5-12

E

E-03

When E-01=BATT Current

When E-01=Premium MPPT Temp

When E-01=Battery Temp. -20~100
When E-01=

-500~500 1A 0 5-12

-20~100

1℃
1℃

00~23 Hr

1 Min 0 5-12

Premium MPPT Time

00~59 Min

When E-01=Battery SOC 0~100 1% 0 5-1 2

00~23 Hr

E-04 Aux RY2 MIN. ON time

1 Min 0 5-12

00~59 Min

Parallel Setup

Standalone,

Programming

F

F-01 Parallel MODE

Master, Slave

F-02 Parallel Addr 2~16

─

─

Operator

Factory

Remark Page

Setting

0 5-12
0 5-12

Stand-

5-12

alone

2 NOTE 5 5-12

O

Data Log G

O-01 Set CLOCK Mode 12/24 Hr
O-02 Set Premium MPPT Time Hr: Min: Sec
O-03 Set Premium MPPT Date MM/DD/YY

─

12 5-13

─ ─
─ ─

5-13
5-13

PM-SCC

O-04 Model Number

─ ─

NOTE 6 5-13

-XXAM
O-05 Turn OFF Backlight T 0~10 1 Min 10 5-13
O-06 FAN Test ON/OFF
O-07 Software Version
O-08 ***Bootloader***

─ ─
─ ─ ─

─

OFF 5-14

9.31I 5-14
5-14

kWHr

G-01 EnergyHarvestToday 1

─

─

5-14

AHr

G-02 EnergyHarvestToday 2

─

Hr:Min

G-03 Set Day LOG # (1-90) 1~90 1 Day

─
─

5-14
5-14

kWHr

G-04 Day LOG # : kWHr

─

─

5-15

AHr

G-05 Day LOG # @ FLOAT

─

Hr:Min

─

5-15

G-07

G-08

Average Last Days

─

xxxxx kWHr xxxx AHr
Average Last Days

─

kWHr

AHr

Hr:Min

─

─

5-15

5-15

FLOAT xx : xx

4-5

Data Log G G-09 Clear Energy Harvest

NOTE 1 (U-12, U-13, U-14, U-15)
Battery SOC, Battery Current and Battery Amp Hours will only be visible when
terminal BVS (Battery Voltage Sensing) is connected to the battery and will only be
active when using an optional 50mv/500amp external shunt.
Battery Temperature will only be visible when terminal BVS (Battery Voltage Sensing)
is connected to the battery and will only be active when using a Battery Temperature
Sensor (BTS-3).

※ These four constants will only be displayed when the terminal BVS (Battery
Voltage Sensing) is wired to the battery. To show the precise values, an optional
50mv/500amp external shunt is needed for U-12, U-13, U-14 and a Battery
Temperature Sensor is needed for U-15.

NOTE 2 (A-03, A-04)
These two constants are reserved for the authorized distributor or technician to lock

Today’s Data
Logged Data

─

Today’s

Data

5-16

the constants operation.

Lock the constants setting

1. Finish setting all the programmable constants to the desired values.

2. Change A-01=Operation Only, factory setting is A-01=Constants Set.

3. Use UP key to go to A-03 to enter the password 1 (max. 4 digits)

4. Go to any display of A-xx and press DOWN key and hold it, then press ESC key

at the same time till A-04 constant occurs.

5. Enter the desired password 2 (max. 4 digits) into A-04. Make sure the password 1

in A-03 must be different from the password 2 in A-04. Finally, press ENTER key
to finish “lock” setting.
Above procedure completes locking the constants setting and no more
programming selection would appear. A-01 would only display Operation only
and would not display Constants Set.

Unlock the constants setting

1. Enter the password in A-03 to be exactly the same as the one earlier set in A-04

2. When the password in A-03 matches the one earlier set in A-04, the unlocking is

completed. A-01=Constants Set would appear again for programming.

4-6

NOTE 3 (B-09, B-10, B-11, B-12)
These constants are only displayed if Flooded is selected as battery type (B-02).

NOTE 4 (C-02, C-03, C-04, C-05)
C-02 is only displayed if P and O or Scan and Hold is selected as MPPT Type (C-01).
C-03 and C-04 are only displayed if Percentage is selected as MPPT Type (C-01).
C-05 is only displayed if Hold Input V is selected as MPPT Type (C-01).

NOTE 5 (U-16, F-02)
U-16 and F-02 are only displayed if Slave is selected as Premium MPPT Network
MODE (F-01).

NOTE 6 (B-04, B-05, C-05, O-04)
The factory settings of the listed constants are dependent on the different model
numbers.

PM-SCC-80AM

PM-SCC-40AMW

Constant LCD Display

Factory Setting

Factory Setting
B-04 Set Battery Capacity 1600 Ahr 800 Ahr
B-05 Bat. MAX Charge Amps 80A 40A
C-05 Set Hold Input Volts 140Vdc 240Vdc
O-04 Model Number PM-SCC-80AM PM-SCC-40AMW

4-7

Chapter 5 Programming Constants

*** Main Menu***

Operation

U-00: IN=xxx.xV xxx.xAmps OUT=xxx.xV xxx.xAmps

z Use Constant U-00 to monitor the power coming in from the PV array in Volts

and Amps. The second line displays the power going out of the Premium MPPT
Series, it also displays in Volts and Amps.

z In most installations there will be a difference between incoming volts and

outgoing volts. This reflects the flexibility of the Premium MPPT Series with
respect to PV array input voltage vs. battery voltage. Incoming and outgoing
amps will also differ because they are the result of dividing watts (a constant) by
volts.

U-01: Input Voltage

z This screen displays the input voltage value coming from the PV array in Volts.

U-02: Input Current

z This screen displays the input current value coming from the PV array in Amps.

U-03:Output Voltage

z This screen displays the power going out of the Premium MPPT Series in Volts.

U-04: Output Current

z This screen displays the power going out of the Premium MPPT Series in Amps.

U-05: EnergyHarvest Today 1

z This screen displays how much the solar energy was harvested “Today” in kWHr

and AHr.

5-1

U-07: EnergyHarvest Today 2

z This screen displays how much time the charger was in Float mode “Today” in

Hour:Minute.

U-08: Stage of Charger

z This screen displays the charging stage of Premium MPPT Series. The possible

values are Charger Off, Charger Start, BULK Stage, ABSORP Stage, FLOAT
Stage, Charger MPPT, Charger Stop, EQUALZ Stage.

U-09: Premium MPPT Series Date

z This screen displays the date according to the setting of initialization stage. The

display format is MM/DD/YY.

U-10: Premium MPPT Series Time

z This screen displays the time according to the setting of initialization stage.

U-11: Premium MPPT Series Temperature

z This screen displays the temperature detected in Premium MPPT Series Battery

Charger.

U-12: Battery SOC

z This screen displays the stage of charge (SOC) as a percentage of fully charged.

SOC will only be visible when terminal BVS (Battery Voltage Sensing) is
connected to the battery and will only be active when using an optional
50mv/500amp external shunt.

※ U-12 will only be displayed when the terminal BVS (Battery Voltage Sensing)

is wired to the battery. To show the precise values, an optional 50mv/500amp
external shunt is needed.

U-13: Battery Current

z This screen displays the battery current in Amps. Battery Current will only be

visible when terminal BVS (Battery Voltage Sensing) is connected to the battery

5-2

and will only be active when using an optional 50mv/500amp external shunt.

※ U-13 will only be displayed when the terminal BVS (Battery Voltage Sensing)

is wired to the battery. To show the precise values, an optional 50mv/500amp
external shunt is needed.

U-14: Battery Amp Hours

z This screen displays the battery capacity in AHr (Amp Hours). Battery Amp

Hours will only be visible when terminal BVS (Battery Voltage Sensing) is
connected to the battery and will only be active when using an optional
50mv/500amp external shunt.

※ U-14 will only be displayed when the terminal BVS (Battery Voltage Sensing)

is wired to the battery. To show the precise values, an optional 50mv/500amp
external shunt is needed.

U-15: Battery Temperature

z This screen displays the battery temperature in ℃. Battery Temperature will only

be visible when Battery Voltage Sensor is connected and will only be active
when using a Battery Temperature Sensor (BTS-3).

※ U-15 will only be displayed when the terminal BVS (Battery Voltage Sensing)

is wired to the battery. To show the precise values, a Battery Temperature
Sensor (BTS-3) is needed to be wired to terminal BTS.

U-16: Parallel COMM Status

z This screen displays the communication status between Master unit and Slave

units. U-16 is only displayed when Slave is selected as Premium MPPT Series
Network MODE (F-01).

z When the communication is successful, the screen displays SLAVE UNIT. When

the communication fails, then screen displays NETWORK ERROR.

U-17: Serial Number

z This screen displays the unit serial number. It is useful when contacting Power

Master T echnical Support.

5-3

*** Main Menu***

Initialize

A-01: Access Level

z Use Constant A-01 to select the user constant access level.

This level determines which user constants can be changed and displayed.

Settings:
A-01=Constant Set (Factory Setting)

This setting allows all user constants to be changed and displayed.

A-01=Operation Only

This setting allows the “Operation” and “Initialize” to be changed or displayed.

A-02: Init Parameters

z Use Constant A-02 to initialize the user constants.
z When initialized, the user constants will return to their factory preset values. You

should normally record the setting of any constants that are changed from factory
presets.

Settings:
A-02=Preset Setting

This setting allows to initialize the user constants to factory settings.

A-02=No Initialize (Factory Setting)

This setting does not initialize any user constants.

A-03: Password 1
A-04: Password 2

z These two constants are reserved for the factory to test and set the functions.
z Users are not allowed to set these two constants.

Lock the constants setting

1. Finish setting all the programmable constants to the desired values.

2. Change A-01=Operation Only, factory setting is A-01=Constants Set.

3. Use UP key to go to A-03 to enter the password 1 (max. 4 digits)

5-4

4. Go to any display of A-xx and press DOWN key and hold it, then press ESC key

at the same time till A-04 constant occurs.

5. Enter the desired password 2 (max. 4 digits) into A-04. Make sure the password 1

in A-03 must be different from the password 2 in A-04. Finally, press ENTER key
to finish “lock” setting.
Above procedure completes locking the constants setting and no more
programming selection would appear. A-01 would only display Operation only
and would not display Constants Set.

Unlock the constants setting

1. Enter the password in A-03 to be exactly the same as the one earlier set in A-04

2. When the password in A-03 matches the one earlier set in A-04, the unlocking is

completed. A-01=Constants Set would appear again for programming.

*** Main Menu***

Programming

Group B

Battery Setup

B-01: Set Battery Voltage

z During initialization of Premium MPPT Series, it will detect and ask the installer

to confirm the battery voltage found is correct. In almost all circumstance the
Premium MPPT Series will correctly detect battery voltage.

z Use Constant B-01 to change the battery voltage if the battery voltage displayed

by the Premium MPPT Series is different from the installed batteries. The
selection range of the battery voltage is 12V (Factory Setting), 24V, 36V and
48V.

B-02: Set Battery Type

z Use UP or DOWN keys to allow the installer to change what type of batteries it

is connected to (Flooded, Gel, AGM) Premium MPPT Series. The default
“BATTERY TYPE” is GEL

z Please be sure to select the type which matches the system’s batteries. This

setting controls battery charging voltages in B-06 and B-08.

5-5

B-04: Set Battery Capacity

z This setting controls battery charging amperages and other settings. The factory

setting for CAPACITY is 1000 amp hours for PM-SCC-50AM, 1600 amp hours
for PM-SCC-80AM, 800 amp hours for PM-SCC-40AMW and 1600 amp hours
for PM-SCC-80AMW.

z At full output capacity a PM-SCC-80AM can deliver 80 amps to a battery, this

amount of amperage (current) is equal to the C/10 (capacity divided by ten) rate
of a 1600 amp hour battery and, as such meets most manufacturers
recommendations for minimum PV charging capacity.

z In applications with battery banks under 1600 amp hours it is recommended to

lower the Maximum Charge Rate setting from the default 80 amps to the C10
rate of the battery bank.

B-05: BAT. MAX Charge Amps

z Use Constant B-05 to allow the installer to limit the maximum charge amps

allowed to the batteries. The factory setting is 80 amps (PM-SCC-80AM).

B-06: Set Absorption Volts

z Use Constant B-06 to adjust the Absorption voltages. The default values are

based on the battery type and capacity selected. It is not advisable to change
default settings unless advised by the battery manufacturer or supplier.

Absorption Volts

Factory

Battery T yp e

Range

Setting

FLOODED 13.9V~15.2V 14.6V

AGM 13.7V~15.1V 14.1V

GEL 13.6V~15.1V 14.1V

※ The above values are based on 12V system. The values x 2 are for 24V

system; the values x 3 are for 36V system and the values x 4 are for 48V
system.

z Premium MPPT Series will charge at the Absorption voltage and at the length of

time before switching to float mode.

5-6

B-07: Set Absorption Time

z Use Constant B-07 to adjust the length of Absorption time. The factory setting is

2 hours (displayed as 02:00).

B-08: Set Float Voltage

z Use Constant B-08 to adjust the Float voltages. The default set values are based

on the battery type and capacity selected. It is not advisable to change default
settings unless advised by the battery manufacturer or supplier.

Battery T yp e Float Volts Range

Factory

Setting

FLOODED 12.9V~14.2V 13.8V

AGM 12.8V~14.2V 13.2V

GEL 12.8V~14.1V 13.5V

※ The above values are based on 12V system. The values x 2 are for 24V system;

the values x 3 are for 36V system and the values x 4 are for 4 8V system.

B-09: Set Equalize Voltage

z This constant is only displayed if Flooded is selected as battery type (B-02). Use

Constant B-09 to select the Equalize voltages. The default values are based on
the battery voltage and capacity selected. It is not recommended to change
default settings unless advised so by the battery manufacturer or supplier.

Battery T yp e

Battery

Equalization Volts Range

Voltage

Factory

Setting
12V 14.7V~16.4V 15.6V
24V 29.4V~32.8 V 31.2V

FLOODED

36V 44.1V~49.2V 46.8V
48V 58.8V~65.6V 62.4V

B-10: Set MAX EQU. Time

z This constant is only displayed if Flooded is selected as battery type (B-02). Use

Constant B-10 to select the time of equalization time. The factory setting is 2
hours (displayed as 02:00).

5-7

B-11: Set Days Between EQU

z This constant is only displayed if Flooded is selected as battery type (B-02). Use

Constant B-11 to select the number of days between equalization charges. The
factory setting is OFF.

B-12: Manual Equalize

z This constant is only displayed if Flooded is selected as battery type (B-02). Use

Constant B-12 to choose between manual and automatic equalization settings.

z Press ENTER key to select Yes for manual equalization and then it will display

the Equalize voltage set in B-09 and the Max. EQU time set in B-10. Press
ENTER key again to start the manual equalization.

※ During equalization, only ESC key is active to leave the equalization process

screen.

After the manual equalization starts, BAT displays Battery voltage. Battery
temperature and Equalizing blinks in return. CHARGE displays charging current.
Finally, the remaining time for equalization charge is counted down.

WARNING: Before the manual equalization is selected, Premium MPPT Series
should be connected to Battery Temperature Sensor (BTS-3). If it is not connected to
BTS-3, “Warning, Bat. Sr Not Connected” is displayed.

z Press ESC key to select No to return to the display of Group B.

Group C

MPPT Setup

C-01: Set MPPT Type

z Use Constant C-01 to set up the MPPT type: P and O, Scan and Hold, Percentage,

Hold Input V. The factory setting is P and O.

z

C-02: Set Scan Frequency

z This constant is only displayed if P and O or Scan and Hold is selected as MPPT

5-8

Type (C-01).

z The scan frequency is settable from 1 minute to 4 hours and the factory setting is

1 hour. Press the UP and DOWN key to increase or decrease the length of time.

z P and O (Perturb and Observe) will run a full scan at the set time interval

(frequency) and then do P and O scans at shorter intervals in between.

z Scan and Hold will run a full scan at the set time interval (frequency) and then

hold the resultant MP until the next interval. This is also settable from 1 minute
to 4 hours; factory is 1 hour.

C-03: Set Percentage VOC

z This constant is only displayed if Percentage is selected as MPPT Type (C-01).
z Percentage measures the VOC at the set time interval and calcula tes the

operating Vmp based on the percentage set. The percentage set point can be from
0 – 100% and factory setting is 80%.

C-04: Set Percentage EveryTime

z This constant is only displayed if Percentage is selected as MPPT Type (C-01).
z When Percentage measure the VOC, the time interval can be set and time is 1

minute to 4 hours. Factory setting is 1 hour.

C-05: Set Hold Input Volts

z This constant is only displayed if Hold Input V is selected as MPPT Type (C-01).
z Hold Input Voltage will regulate based on the input voltage set (0-140V) for

PM-SCC-80AM and (0-240V) for PM-SCC-80AMW, based on the panel type.
The output current will be based on that voltage.

Group D

Auxiliary Relay 1

D-01: Set Aux Relay 1 Mode

z The Auxiliary Relays are useful for functions such as turning a generator on or

off at low battery voltage or load change, turning on an external fan when battery
temperature increases, or shedding certain loads at specific times. Additional

5-9

functions will be added in the future.

z Use Constant D-01 to select the Auxiliary Relay 1 mode and what it is based on.
z Auxiliary Relay 1 Mode includes OFF, ON, Solar Voltage, Output Voltage,

Battery Voltage (only displayed and active when terminal BVS is connected to
the battery), Output Current, Battery Current (only active when terminal BCS is
connected with a Shunt 50mV, 500Amp), Premium MPPT Series Temperature,
Battery Temperature (only active when terminal BTS is connected with a Battery
Temperature Sensor, BTS-3), Premium MPPT Series Time and Battery State of
Charge(only displayed when terminal BCS is connected with Shunt 500Amp,
50mV). The factory setting is OFF.

z D-02, D-03 and D-04 will not be displayed, when D-01 is set to be ON or OFF.

D-02: Aux RY1 ON Condition

z According to 9 selectable modes in D-01, use Constant D-02 to set the condition

to activate the Auxiliary Relay 1 to be ON.

z The displayed setting range of D-02 will change to less than or greater than (< or

>) depending on if D-02 or D-03 is higher or lower value. This allows setting on
either a rising or falling voltage.

z Once entering the D-02, use UP and DOWN keys to increment and decrement

the values.
Aux RY1 ON Condition Setting Range of D-02 Setting Unit
When D-01= Solar Voltage
When D-01=Output Volts

When D-01=Battery Volts

< or > 0~150V/0~250V

< or > 0~64V
< or > 0~64V

0.1V

0.1V

0.1V

※ Battery Voltage is only displayed and active when terminal BVS is

connected to the battery.
When D-01=OUT Current
When D-01=BATT Current

< or > 0~80A

< or > -500~500A

1A
1A

※ Battery Current is only active when terminal BCS is connected with a

Shunt 50mV, 500Amp.
※ The values may be positive or negative as this input reads load current as

well as charge current.
When D-01= Premium MPPT

< or > -20~100℃ 1℃

Series T em p.
When D-01=Battery Temp.

< or > -20~100℃ 1℃

※ Battery Temperature is only active when terminal BTS is connected with a

Battery Temperature Sensor (BTS-3).

5-10

When D-01= Premium MPPT
Series Time

< or > 00~23 Hr

1 Min

00~59 Min

When D-01=Battery SOC

< or > 0~100%

1%
※ Battery SOC is only active when terminal BCS is connected with a Shunt
50mV, 500Amp.

D-03: Aux RY1 OFF Condition

z According to 9 selectable modes in D-01, use Constant D-03 to set the condition

to activate the Auxiliary Relay 1 to be OFF.

z The displayed setting range of D-03 will change to less than or greater than (< or

>) depending on if D-02 or D-03 is higher or lower value. This allows setting on
either a rising or falling voltage.

z Once entering the D-03, use UP and DOWN keys to increment and decrement

the values.
Aux RY1 OFF Condition Setting Range of D-03 Setting Unit
When D-01= Solar Voltage
When D-01=Output Volts

< or > 0~150V/0~250V

< or > 0~64V

0.1V

0.1V

When D-01=Battery Volts

< or > 0~64V

0.1V

※ Battery Voltage is only displayed and active when terminal BVS is

connected to the battery.
When D-01=OUT Current
When D-01=BATT Current

< or > 0~80A

< or > -500~500A

1A
1A

※ Battery Current is only active when terminal BCS is connected with a

Shunt 50mV, 500Amp.
※ The values may be positive or negative as this input reads load current as

well as charge current.
When D-01= Premium MPPT

< or > -20~100℃ 1℃

Series T em p.
When D-01=Battery Temp.

< or > -20~100℃ 1℃

※ Battery Temperature is only active when terminal BTS is connected with a

Battery Temperature Sensor (BTS-3).
When D-01= Premium MPPT

< or > 00~23 Hr

1 Min

Series Time

00~59 Min

When D-01=Battery SOC

< or > 0~100%

※ Battery SOC is only active when terminal BCS is connected with a Shunt

50mV, 500Amp.

5-11

1%

D-04: Aux RY1 MIN. ON time

z Use Constant D-04 is to set the minimum time that the relay can remain active.
z The minimum time is set to avoid the difference of the values set in D-02 and

D-03 is so small to cause the damage on the relay due to the high frequency of
relay action between ON and OFF.

Group E

Auxiliary Relay 2

E-01: Set Aux Relay 2 Mode
E-02: Aux RY2 ON Condition
E-03: Aux RY2 OFF Condition
E-04: Aux RY2 MIN. ON time

※ The functions and the settings of Auxiliary Relay 2 are exactly the same as those

of Auxiliary Relay 1 so please refer to above Group D, Auxiliary Relay 1
description.

Group F

Parallel Setup

F-01: Premium MPPT Series Parallel MODE

z Use Constant F-01 to set up Premium MPPT Series Network. Each Premium

MPPT Series in parallel requires a mode and address entry.

z The Mode choices are:

Setting Usage

Used when there is only one Premium MPPT Series with a

Standalone

Remote Display connected.
Used to assign the network master (this is the Premium MPPT

Master

Series that connects to the shunt).
Assigns up to 15 additional Premium MPPT Series slave units.
The first Premium MPPT Series is assigned as master and the

Slave

rest of units in network are slaves. The network address will be
assigned to each slave unit in F-02.

5-12

F-02: Premium MPPT Series Parallel Addr

z A Premium MPPT Series assigned as Master or Standalone is always addressed

01 automatically so the address assignment in F-02 is only available for the slave
units.

z The maximum slave address number is 16 and the factory setting is 2.

Group O
Operator

O-01: Set CLOCK Mode

z This is the same display as in the initialization setup of battery.
z Use Constant O-01 to change and select the hour format displayed between 12

Hour and 24 Hour. Factory setting is 12 Hour Format.

z When 12 Hour is selected, AM and PM indication will be shown in O-02.

O-02: Set Premium MPPT Series Time

z This is the same display as in the initialization setup of battery.
z When 12 Hour format is selected in O-01, AM and PM indication will be shown.
z Press ENTER to start to edit the Hour:Minute: Second number and press UP and

DOWN key to increment or decrement the values.

O-03: Set Premium MPPT Series Date

z This is the same display as in the initialization setup of battery.
z Press ENTER key to start to edit the MM/DD/YY and press UP and DOWN key

to increment or decrement the values.

O-04: Model Number

z The model number of the unit is displayed.

O-05: Turn OFF Backlight T

z Use Constant O-05 to set the operation of the LCD backlight. Since the backlight

5-13

consumes a fair amount of quiescent current, it is recommended that the on time
be as short as possible.

z Press ENTER key to enter the setting and press UP and DOWN key to turn off

from NEVER (always on) or 1 to 10 minutes in 1 minute increments.

Note: When the backlight turns off, pressing any key will turn it back to U-00 display

screen.

O-06: Fan Test

z Use Constant O-06 to test if the fan can be forced to be ON or OFF.
z When FAN ON is selected, the fan test is conducted as the O-06 screen remains.

Once the screen leaves O-06, it will stop the test running.

O-07: Software Version

z The software version displayed is important and useful when contacting Power

Master Technical Support.

O-08: ***Bootloader***

z This is the Bootloader initiation display. It is only used to update the firmware.

*** Main Menu***

Data Log

G-01: EnergyHarvest Today 1

z This screen displays how much the solar energy was harvested “Today” in kWHr

and AHr unit.

G-02: EnergyHarvest Today 2

z This screen displays how much time the charger was in Float mode “Today”.
z It is valuable to know that the charger enters Float mode because this is a clear

indication that the batteries have been fully recharged. If the value displayed in
“G-02=FLOAT ” is consistently 00.00 Hr, it means that the PV array is not
sufficiently sized to keep up with the load. Use a generator fo r additional battery

5-14

charging, reduce loads, or expand the PV array to ensure that batteries are fully
recharged. For maximum service life batteries should be fully recharged at least
once every five to ten days.

G-03: Set Day LOG# (1-90)

z Use G-03 to set the Day Log number to display the energy harvested from PV

array (shown in G-04 and G-05) by Premium MPPT Series over a period of time.

z If it is selected as #2 displays past power production since the last power cycle

(or up to 90 days previous) along with the date of day before the current date.
Use UP and DOWN keys to select the date by one and the energy harvested on
the date shown is displayed in G-04.

G-04: Day LOG# :kWHr

z This screen displays how much the solar energy was harvested in kWHr and AHr

according to the selected day shown in G-03.

G-05: Day LOG# @FLOAT

z This screen displays how much time the charger was in Float mode according to

the selected day shown in G-03.

G-07: Average Last Days

xxxxx kWHr xxxx AHr

z This screen shows the average power produced over the past cumulative days as

both in kWHr and AHr.

G-08: Average Last Days
FLOAT xx : xx

z This screen displays how much average time the charger was in Float mode in

the past cumulative days, shown in Hour: Minute.

G-09: Clear Energy Harvest

z Use Constant G-09 to clear Today’s Data or all the Logged Data.

5-15

z Press ENTER key and use UP and DOWN keys to select between Today’s Data

and Logged Data and then press ENTER key again to clear the selected data.

5-16

Chapter 6 Trouble Shootin g

z Proceed as follows for a quick detection of common faults.
z Consult your Power Master dealer if the fault cannot be resolved.

Problem or Error message Cause Solution

Premium MPPT Over-Temp.

ERROR!!!

High Input Voltage

ERROR!!!

ERROR!!!

Battery Over-Temp.

ERROR!!!

Parallel COM Failed

When the PV array voltage is
higher than 140VDC for
PM-SCC-80AM or higher than
240VDC for PM-SCC-80AMW,
the battery charging stops.

The ambient temperature is too
high and it causes the over
temperature of heatsink.

The battery temperature is
detected too high by the Battery
Temperature Sensor (BTS-3).

The communication failure
between Master and Slave units
or between Slave and Slave units
has occurred.

Make sure the PV array
voltage is within the
rated voltage range.

Place the Premium
MPPT Series unit in a
cool and well-ventilated
room.
Check the battery
condition and place the
battery bank in an
well-ventilated room.
Check the connecting
cables between Master
and Slave units or the
cables among Slaves.

6-1