Full Text Searchable PDF User Manual
PMAC901 Single Phase Energy Meter
Installation & Operation Manual
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
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
- □- □- □
①
②
③
①
Communication Port
C
One RS485 COM
M
One C-MBUS
②
Optional Accuracy
1
Active energy class 1
0.5S
Active energy class 0.5S
③
Rated Current
40
10(40)A
60
10(60)A
100
20(100)A
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.
(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
The number
2-
means communication address setting option. The back number
1
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
(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
6
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
V
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
7
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