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Pilot Communications PMAC901 Installation & Operation Manual

Made by: Pilot Communications
Type: Installation & Operation Manual
Category: Measuring Instruments
Pages: 10
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PMAC901 Single Phase Energy Meter 

                   

Installation & Operation Manual 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


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I

Contents 

 
 

1. Product Description ............................................................................................................................................... 1 
2. Features.................................................................................................................................................................. 1 
3. Order Information.................................................................................................................................................. 1 
4. Main Technical Parameter ..................................................................................................................................... 2 
5. Display and Key-press Operation.......................................................................................................................... 2 

5.1 Display Instruction....................................................................................................................................... 2 
5.2 LED Lights Instruction ................................................................................................................................ 2 
5.3 Key-press Instruction................................................................................................................................... 3 
5.4 Parameter Setting......................................................................................................................................... 3 

6. Connection Modes and Drawing ........................................................................................................................... 5 
7. Figure and Installation Dimension......................................................................................................................... 5

8. Modbus RTU tables............................................................................................................................................... 7

 
 
 

 

 
 
 
 
 

 

 
 
 
 

 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
All details subject to change without notice

 

 


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1

1. Product Description 

 

PMAC901 DIN rail energy meter is a kind of new style single phase whole electronic type meter. The meter is 

completely conformed to the relative requirements of the Nation Standard GB/T17215-2008 and International 

Standard IEC 62053:2003 (Class 1 or Class 0.5S). It is an integration of up-to-date micro-electronics technique, 

special imported large scale integrate circuit, advanced technique of digital sampling technique and SMT 

techniques etc.   

 

PMAC901 single phase energy meter is designed for measuring active energy power consumption in a rated 

frequency of 50Hz or 60Hz three phase alternating current circuit. It displays total energy consumption via LCD 

and is characterized with good reliability, compact size, light weight, specious nice appearance and easy 

installation. 

 
 

2. Features 

 

 

35mm DIN installing, in accordance    with Standard DIN ED5002   

 

High accuracy, active energy accuracy up to class 1 or class 0.5S 

 

6+1 digits LCD display 

999999.9 kWh

 

 

Passive pulse output, output signal is in accordance with Standard DIN43864   

 

LED indicates pulse output 

 

Key-press for local parameter setting 

 

RS485 or C-MBUS communication port, Modbus protocol 

 

3. Order Information 

 
 

PMAC901 

- □-  □-  □ 

                   

     

     

     

 

  Communication Port 

One RS485 COM 

One C-MBUS 

  Optional Accuracy  

Active energy class 1 

0.5S 

Active energy class 0.5S 

  Rated Current 

40 

10(40)A 

60 

10(60)A 

100 

20(100)A 

 

 


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2

Order Example 

PMAC901 –C –0.5S -40 
It means the single phase energy meter provides one pulse output, one RS485 COM, class 0.5S accuracy 
measurement, maximum rated current is 40A. 
 

 

4. 

Main Technical Parameter

 

Rated voltage 

220VAC 

Accuracy 

Class 1 or Class 0.5S 

Rated current 

10(40)A,10(60)A,20(100)A 

Dimension  75×88×73mm 

Input frequency 

50Hz 

Installation 

mode 

Standard 35mm DIN rail 

Starting current 

0.1%I

n

 

Operating temperature: -20

~+55

 

Power supply 

220VAC±15% 

Storage temperature: -20

~+55

 

Power consumption  <2W 

Operating 

condition 

Relative humidity: 

5%~95%,non-condensing 

Insulating property 

Power frequency withstand voltage: AC 2 KV 

Impulse withstand voltage: 6KV 

Electrostatic discharge immunity test 

IEC61000-4-2, Level 4 

Radiated immunity test 

IEC61000-4-3, Level 3 

Electrical fast transient/ burst immunity test 

IEC61000-4-4, Level 3 

Surge immunity test

1

2/50

μ

s~8/20

μ

s

 

IEC61000-4-5, Level 3 

Conducted emission 

EN55022, Class B 

Radiated emission 

EN55022, Class B 

 

 

5. Display and Key-press Operation   

 

   

 
5.1 Display Instruction

 

In energy data displaying interface, the LCD displays KWH value in 6 +1 digits (999999.9 KWh). 

In parameter setting interface, the menu setting options are in order of : CT ratio programming, communication 

address programming, baud rate programming, clear energy.   

 

5.2 LED Lights Instruction

 

On the panel of the meter, there are 3 LED lights in order of

 (COM), (PULSE), (REV). 

(COM)

 is communication indicating light. When the communication is normal, the light flashes once every two 

seconds. When communication error, the light flashes twice a second. In case communication blackout, the light is 
off. 

 

 


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(PULSE) 

is active pulse output indicating light. It flashes once as soon as there is a pulse output. 

(REV)

 is opposite energy indicating light. This light is on when the active power is reversed. 

 
5.3 Key-press Instruction 
 

      Move left or quit setting. 

      Increase value or select menu. 

    Enter setting or enter menu. 

 
5.4 Parameter Setting 
 

CT Ratio Programming 

Note: When rated current >5A, default CT ratio is 1. 
 

1

In data displaying interface, press

  for 3 seconds and release to enter setting interface. The default first 

setting menu is CT ratio programming. Default display is: 

1-   1

 

The number 

1- 

means CT ratio setting option. The back number

 1

 means the CT ratio is 1. 

The programming range of CT ratio is 1~999. 

2

If the external CT parameter is 800/5, users should program the CT ratio to 160.   

Press 

  quickly and release to enter programming. The screen shows: 

1-  1   .1

 

 

The last two digits 

.1 

means the current cursor position is on units digit. 

3

Press 

 

several times, change the units digit to 0. The screen shows: 

1-  0   .1

 

4

Then press 

  once again, the screen 

shows

:

 

1-    0    .2 

The last digit 

.2 

means current cursor position is on tens digit. 

5

Press 

 

several times,  change the tens digit to 6. The screen shows: 

1-   60   .2

 

 

6

Then press 

  once again, the screen 

shows

:

 

1-    60    .3 

The last digit

 .3 

means current cursor position is on hundreds digit. 

7

Press 

, change the hundreds digit to 1. The screen shows:

 

1-  1 60   .3 

8

Then press 

  to confirm the setting. The last two digits 

.3 

disappear. Quit CT ratio programming. At this 

moment, CT ratio menu shows: 

1-  1 60   

     

 

(9) Press 

  to quit setting interface. 

                                                                   

   

Communication Address Programming

 

1

In data displaying interface, press

  for 3 seconds and release to enter setting interface. The initial menu is 

CT ratio programming. Press 

  once and release, enter communication address programming. The default 

display: 

2-  1  

 

3

 


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The number 

2- 

means communication address setting option. The back number 

means the communication 

address is 1.   

The programming range of communication address is 1~247. 

 

2

If users want to change the communication address to 12, press 

 to enter programming. The screen 

shows:  

2-  1   .1 

         

The last two digits

 .1 

means current cursor position is on units digit. 

3

Press 

  to change the units digit to 2. The screen shows: 

2-  2   .1

 

4

Press 

, the screen shows: 

2-  2   .2

 

         

The last two digits

 .2 

means current cursor position is on tens digit.               

5

Press 

  to change the tens digit to 1. The screen shows: 

1-   12   .2

                                                     

6

Then press 

  to confirm the setting. The last two digits 

.2 

disappear, and the communication address menu 

shows: 

 2-   12 

                                                                           

7

Press 

  to quit programming. 

 

Baud Rate Programming

 

1

In data displaying interface, press

  for 3 seconds and release to enter setting interface. Press 

 twice to 

enter baud rate menu. The screen shows: 

3-  9 6

     

The number 

3- 

means baud rate setting option. The back number 

96 

means the baud rate is 9600bps.   

The baud rate can be set to 4800bps or 9600bps. 

2

If users want to change the baud rate to 4800bps, press 

  to enter programming. The screen shows: 

3-  

96   .

 

         

The last lighted decimal point 

 

.  

means it is in programming interface.           

3

Press

  once, change the baud rate to 4800bps. The screen shows:

 3-    48    .

                                       

4

Press

 

  to confirm setting, the decimal point disappear. The screen shows: 

3-   48

 

5

Press 

  to quit programming. 

 

Clear Energy

 

(1) In data displaying interface, press

  for 3 seconds and release to enter setting interface. Press 

 three times 

to enter clear energy menu. The screen shows: 

4-C  n 

The number 

4-

 means clear energy setting option, the letter 

C

 means CLEAR, and the last letter 

n

 is used for 

setting.     

(2) Press 

  quickly and release, enter programming. The last decimal point lights on. The screen shows: 

4-C  

n . 

(3) Press 

  and release, the last letter 

n

 

change to

 

y

. It 

warns

 users to clear energy. The screen shows: 

4-C  y  . 

 

4

 


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(4) Press

 

  and release, confirm to clear energy. The screen again shows: 

4-C  n

   

(5) Press 

  to quit programming, and turn back to data displaying interface. The kWh value has been cleared to 

zero. 

 

6. Connection Modes and Drawing 

 

There are two connection modes: direct connection and indirect connection through CT. 

When rated current 

100A, the meter should be connected via external CT.   

When rated current 

100A, the meter should be connected directly. 

 
(1) PMAC901 direct connection drawing ( rated current

100A)  

 

1

2

3

4

TEST

485/CMbus

-

+

-

+

5

L

6

7

N

8

L

N

 

Note: The dimension of L/+ connecting hole is 7×7mm. 
      The dimension of N/- connecting hole is 3.5×2.5mm. 

 
(2) PMAC901 indirect connection drawing, via external CT    (rated current >100A

 

 

 

     

TEST

485/CMbus

-

+

-

+

5

I-

6

7

N

8

I+

N

1

2

3

4

L

 

7. Figure and Installation Dimension 

 
PMAC901 Figure and Installation Dimension (unit: mm) 

 

5

 


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6

 


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8.   

PMAC901 Modbus RTU 

 

Metering Data Registers (F03) 

 

Register 

Address 

Type of 

Register 

Description 

Remarks 

Type of 

Data 

40001 

RO 

EL 

Energy low 16 bit 

40002 

RO 

EH 

Energy high 16 bit 

Total energy, one decimal 

place.  

Unit: kWh 

unsigned 

long  

40003 

RO 

Voltage, two decimal places, 

Unit: V 

unsigned 

int 

40004 

RO 

IL 

Current low 16 bit 

40005 

RO 

IH 

Current high 16 bit 

Current, three decimal 

places. Unit: A 

unsigned 

long 

40006 

RO 

PL 

Active power low 16 bit 

40007 

RO 

PH 

Active power high 16 bit 

Active power, one decimal 

place.  Unit: W 

long 

40008 

RO 

KVAL 

Apparent power low 16 bit 

40009 

RO 

KVAH 

Apparent power high 16 bit 

Apparent power, one 

decimal place. Unit: KVA 

unsigned 

long 

 

 

Parameter Settings 

Register 

Address 

Type of 

Register 

Description 

Remarks 

40201 

RW 

CT ratio 

1~999 

40202 

RW 

Communication address 

1~247 

 40203 

RW 

Baud rate of COM 1 

0 – 4800bps 

1 – 9600bps 

 

 

 

 

 

 

 

 

 

 

 

 

 


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  Zhuhai Pilot Electronics Co., Ltd. 

Distributor: HRW Limited, Hong Kong
admin@hrw.hk 

Tel: +

852 2546 7402

Fax: +

852 2546 7403

 

http://www.

hrw.hk