Pilot Communications PMAC615 User manual

PMAC615 Single Phase Digital Panel Meter
Installation & Operation Manual
V1.0
ZHUHAI PILOT ELECTRONICS CO., LTD.

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Danger and warning!
This device can be installed only by professionals.
The manufacturer shall not be held responsible for any accident caused by the failure
to comply with the instructions in this manual.
Risks of electric shocks, burning, or explosion
This device can be installed and maintained only by qualified people.
Before operating the device, isolate the voltage input and power supply and
short-circuit the secondary windings of all current transformers.
Put all mechanical parts, doors, or covers in their original positions before energizing
the device.
Always supply the device with the correct working voltage during its operation.
Failure to take these preventive measures could cause damage to equipment or
injuries to people.

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CONTENTS
1. Product Description................................................................................................... 4
2. Installation and Connection...................................................................................... 6
3. Order Information....................................................................................................... 9
4. Measurement Performance....................................................................................10
5. Operation...................................................................................................................13
6. Input/ Output Characteristics................................................................................. 18
7. Setpoint Alarm.......................................................................................................... 20
8. Communication Protocol.........................................................................................22
9. Maintenance and Trouble Shooting...................................................................... 29
10. Technical Datasheet.............................................................................................. 31

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1. Product Description
PMAC615 digital panel meter is designed for single-phase measurements of AC power
signals and related parameters. Instead of traditional pointer meters, relay and other
components, PMAC615 digital panel meter integrates sampling and control function, which
is suitable for various low voltage single phase system.
PMAC615 digital panel meter provides an optional RS485 communication port to link with
PLC, PCs and SCADA system. Users can program the parameter via RS485 COM easily.
PMAC615 digital panel meter is made by complicate frequency locking technology which
supports up to 0.2% high accuracy measurements for non-liner load. Users may read the
measurement value from LED panel or via software.
Besides, PMAC615 provides optional two status inputs, one relay output for different
application. User can choose the DI/ DO flexibly. And its pluggable terminals connection is
easy for local wiring or maintain.
1.1 View
Side view
Back view

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1.2 Features
The main features of PMAC615 are below:
◆Accept standard CT input
◆Direct connect to max. 400V voltage system
◆Active energy accuracy is in accordance with IEC62053-21, class 1
◆Accuracy of voltage and current measurement is 0.2%
◆Friendly LED panel for reading
◆Revisable relay alarm output
◆Optional two status input
◆Pluggable terminals, easy for wiring and maintain
◆RS485 communication, support standard MODBUS-RTU protocol
◆Operating temperature: -20℃- +60℃
Storage temperature: -30℃- +70℃
Humidity: 5% - 90%RH, non-condensing

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2. Installation and Connection
2.1 Environment
Operating temperature: -20℃- +60℃
Storage temperature: -30℃- +70℃
Humidity: 5% - 90%RH, non-condensing
2.2 Dimension

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2.3 Terminals Instruction
No.
Mark
Definition
1
N/-
Null line
2
L/+
Live line
3
I-
Current negative pole
4
I+
Current positive pole
5
V-
Voltage negative pole
6
V+
Voltage positive pole
7
485+
RS485 positive pole
8
485-
RS485 negative pole
9
S1+
Status input 1 positive pole
10
S1-
Status input 1 negative pole
11
S2+
Status input 2 positive pole
12
S2-
Status input 2 negative pole
13
RL+
Relay output positive pole
14
RL-
Relay output negative pole

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2.4 Connection
Example: PMAC615-I-SRC single phase digital current meter, provides one RS485, two
status input and one replay output.
To control loop
Status
Input
Relay
Output
Current
Signal
Power
Supply
Communication

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3. Order Information
Definition of full model number of PMAC615 as following sheet:
Model number: PMAC615- ①-②
①: Module Structure
U
I
P
W
Z
Voltage
Current
Voltage + Current + Active Power
Voltage + Current + Active Energy
Voltage + Current + Active Power + Reactive Power + Power Factor + Frequency
+ Active Energy
②: Auxiliary Function
S
RC
C
Two Status Input ( external power supply)
One Relay Output + One RS485 Communication
One RS485 Communication
Note:
1. Default rated current is 5A. Other customized feature is available, please mention
requirement when place order.
2. Reactive power and power factor can be read via RS485 COM only
Example: In case the model number is PMAC615-I-S, the corresponding feature is
measuring current, providing two status input, rated current is 5A.

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4. Measurement Performance
4.1 Real-time Measurement
PMAC615 provide real-time measurement of voltage, current, power and so on. Below data
is true RMS. The update rate is 1 second.
Real-time Reading
Measuring Range
Current
0 – 50,000A
Voltage
0 – 500V
Active Power /
Reactive Power
0 - ± 30MW/Var
Power Factor
-1.000 - +1.000
Frequency
45Hz - 65Hz
Active Energy
0 - 99,999,999.9 kWh
Note: The value of reactive power and power factor is read from RS485 COM.
4.2 Symbol of Power Factor
The measurement of power factor symbol by PMAC615 is according to IEC standard, as
follow instruction:

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Quadrant 2
Quadrant 3 Quadrant 4
Quadrant 1
Negative active power (-)
Positive reactive power (+)
Power factor (-)
Positive active power (+)
Positive reactive power (+)
Power factor (+)
Negative active power (-)
Negative reactive power (-)
Power factor (-)
Positive active power (+)
Negative reactive power (-)
Power factor (+)
Reverse-direction power flow Forward-direction power flow
Reactive power input
Active power input
4.3 Energy Parameter
PMAC615 provides measurement of bidirection active energy, up to 99,999,999.9 kWh. Due
to the limitation of LED window size, the meter displays one energy data into two times. It
firstly displays the 5th digit and above in front of decimal point, secondary displays the rest
below thousand’s digit (include thousand’s digit).
When the accumulated energy reaches 99,999,999.9 kWh, the value will turnover
automatically.
The symbol of energy vary with power. In accordance with IEC Standard, the related
definition please refer to Charter 4.2 Symbol of Power Factor.

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The sheet below describes the interrelationships of various types of energy and the
symbolic relationships between energy and power:
Input active energy
First-quadrant
active energy
Positive inductive active power
Fourth-quadrant
active energy
Positive capacitive active power
output active energy
Second-quadrant
active energy
Negative capacitive active power
Third-quadrant
active energy
Negative inductive active power

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5. Operation
5.1 Display
Display instruction
A: Communication prompt
B: Data area
C: Status input prompt
D: Programming menu prompt
E: Real-time parameter data
1: Logo
2: Model No.
Key-press instruction: the function of every key vary with interface.
Data display interface
Programming interface
Configure viewing
Configure
modifying
Page turning in submenu.
Quit viewing
Move cursor
Page turning in main
menu.
Page turning on menu
Modify the value on
cursor’s digit
Enter into configure
viewing
Enter into programming
interface.
Confirm the
modification
5.2 Data Viewing
The real-time measured data is displayed in form of following menu. If the meter is not a full
function device, the relating display is missing.
The procedure of real-time data viewing is as follow:

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The initial power-up interface of the meter is shown
as follow:
Press key continuously, it
displays measurement data one
by one.
Voltage
Press key once, it displays
measurement value of current
Current
Press key once, it displays
measurement value of active
power.
(Reactive power and power factor
shall be read via communication)
Active Power
Press key once, it displays
measurement value of frequency.
Frequency

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Press key once, it displays
measurement value of active
energy, firstly displays the data
above 10000’ digit.
Active Energy ≥ 10000’ digit, with a mark “H”
Press key once, it displays
the active energy value in 1000’
digit.
Active Energy ＜10000’ digit
Note: Above data is just for reference, there is no logical relation.
5.3 Parameter Viewing
1. State of Status Input: S indicates Status. Number 1, 2 indicates the corresponding
channel. If the character on LED lights on, it means the channel is closed. Otherwise, the
channel is open.
2. Communication State: The communication light has two kinds of character: “RXD”
indicates “Receiving”, and “TXD” indicates “Sending”. When the corresponding character
flashes, that means there is data flow. Users will know the communication state according to
the character on LED. If “RXD” flashes, it means receiving data. If “TXD” flashes, it means
sending data. If there is no communication, no character flash.
5.4 Parameter Setting
For setting the parameter, please refer to following procedure.
Press key , enter into configuration interface.

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1. Press key until to CT character.
2. Press key , a cursor appears.
3. Press key , change the value.
4. Press key , confirm the new value,
the cursor disappears.
Set CT ratio（Current Transformer）
1. Press key until to ID character.
2. Press key , a cursor appears.
3. Press key , change the value.
4. Press key , confirm the new value,
the cursor disappears.
Set Communication Address
1. Press key until to Bd character.
2. Press key , a cursor appears.
3. Press key , select 4800 or 9600.
4. Press key , confirm the selection,
the cursor disappears.
Set Baud Rate
1. Press key until to CR character.
2. Press key , a cursor appears.
3. Press key , select YES or no.
4. Press key , confirm the selection,
the cursor disappears.
( confirm YES means clear energy)
Clear Energy

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1. Press key until to “E-“ character.
2. Press key , a cursor appears.
3. Press key , select 0, 1 or 2.
4. Press key , confirm the selection,
the cursor disappears.
“0” means to display input active energy,
“1” means to display output active energy,
“2” means to display total active energy.
Set the displaying of energy
1. Press key , check the version of
Meter.
Version of Meter
Note: Due to be limited by size of LED window, other parameters such as reactive power,
power factor etc. , shall be set via communication.

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6. Input/ Output Characteristics
6.1 Status Input
PMAC615 provides two status input channels, which are used to detect state information
such as breaker position signal and isolator position signal.
There is no power provided from the device. When local application requires the status input
to detect signal, it should be connect to an external 220VAC/ DC power supply. When
external node is closed, the corresponding status input channel will be clear. Refer to below
drawing:
S1
External
Power
Supply
Note: Because there is no internal power supply, the external node must be connected to
outside power, otherwise, the status input channel don’t work. External power supply:
220VAC/DC±25%.

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6.2 Relay Output
PMAC615 provides two relay operation modes. They are remote control and local control.
Users shall distinguish the relay is in local control mode or in remote control mode. In
different mode, the operation to relay is different.
The default mode of the meter is in remote control mode. Users can change the mode
through communication.
◆Remote control (external)—The relay is controlled by a PC or PLC by using
commands through communication.
◆Local control (internal)—The relay is controlled by one of the electrical
parameters inside the meter, which serves as the response to the control alarm
conditions of a set point.
Once the relay has been in remote control mode, even though the local control conditions
have been set, the relay will not operate. The relay mode must be set at local control mode.
The two relay operation modes are as follow:
◆Normal:
-Remote control: By receiving a command from a PC or PLC, the relay
close. The relay’s status will be kept until the PC or PLC gives a release
command or the meter is de-energized.
-Local control: When an alarm signal activating the relay is generated,
the relay operates. The relay will not be released until all the alarm
conditions activating the relay disappear or the meter is de-energized. If
the power supply for the meter is resumed and the alarm conditions still
exist, the relay will operate again.
◆Time delay reset
-Remote control: By receiving a command from a PC or PLC, the relay
operates. The relay’s operating status will be kept until a special timer
overflows or the meter is de-energized. If, before the timer overflows,

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there is a new command that makes the relay operates, the timer will
restart.
-Local control: When an alarm signal activating the relay is generated,
the relay operates. The relay’s operating status will be kept within the
period of time for timing. When the timer overflows, the relay will be
released and kept released.
7. Setpoint Alarm
PMAC615 provides one relay alarm output which is programmable.
When the relay output is set to in local control mode, it indicates corresponding set point
alarm. There are 5 parameters may be set under setpoint alarm feature. Refer to below
sheet:
Operation object
0 - Prohibit
1 – Voltage
2 – Current
Operation upper limit value
0% - 120% of rating
Operation lower limit value
0% - 120% of rating
Operation time delay
0 - 1200s, 0 means the relay operates
immediately.
Return time
0 - 1200s, 0 means non-return.
Suppose that, Users want to know if there is undervolatge situation. It is required that if in
undervoltage situation, it alarms immediately, until normal voltage is resumed. The
programming procedure as follow:
Operation object: Voltage