MULTI-FUNCTION METER – OPERATION MANUAL INSTRUMENT FRONT & REAAR
RS1 RS2 YS1 YS2 BS1 BS2
R
Y
B
N
+TX -TX
TYPE : PTR : CTR :
E
AUX. SUP.: SR. NO. :
PRG
KW
TX
MFM-02
RX
CLASS :
KVAR
+
-
AUX SUP. 24V DC
MULTIFUNCTION METER
# 1 2 4 5 6 7 8 9 11 12 13 15 16 17 18 19
SPECIFICATION Manufacturer. Manufacturer. Model No. Aux Power Supply Range. Electric Electric Network. CT Secondary. PT Secondary. VA Burden. Nominal Input Current (I in ). Insulation Resistance. Resistance. Momentary Momentary Overload Capacity. Input Frequency Range. Communication Communication Port. Communication Communication Protocol. Dimensions (mm). Mounting. Terminals.
20
Measuring Parameters.
21
Display / Indications / Settings available on the Unit.
22 23 24
Accuracy Class. Temperature Range. Response Time.
PARTICULARS ACCORD. MFM-02. 24V DC 3-Phase 4-Wire. 1A/5A 100-110 VAC 1 VA on each PT for Sensing. 0.5 VA on each CT. 1A. > 10 MΩ at 500 VDC. 20 times Iin for 1 sec. 40 to 60 Hz. RS 485. 2WIRE MODBUS RTU. 96X96, 90mm. depth behind panel. FLUSH Mounting. Suitable for 2.5 mm 2 wires. ♦ RN YN BN & RY YB BR Voltages, Currents, ♦ R Y B Currents, ♦ Line Frequency, ♦ Active, Reactive and Apparent Power & power factor ♦ Active and Reactive Apparent Energy. (lead / leg) (Import / Export). ♦ Max. Demand ♦ 16x2 characters LCD display to display the set values & measuring parameters. ♦ KWH LED to indicate Active Power pulse. Reactive Power pulse. ♦ KVARH LED to indicate Reactive ♦ 04 Keys for programming the unit (CT & PT ratio , Baud rate, unit ID & RTC ) 0.2 0-55 ° C Less than 200ms
AC CO R D EL EC TR O- T EC H NI CS P VT . LT D. 208A, Suchita Industrial Estate, Opp. Oswal Park, Pokharan Road No. 2, THANE (W)-400601 . Maharashtra. Telefax: 00 91 22 2173 6438, E-mail:
[email protected] (10/05/2007) OPR. MAN.: MULTIFUNCTION METER 3φ , 4-wire. Page 1/6
SET PARAMETER IN THE METER. 1.
CT PRIMARY
1-4000A
2.
CT Secondary
1A/5A
3.
PT PRIMARY
3.3KV-400KV
4.
PT secondary
100-110 VAC
5.
Integration time
15 & 30 Min.
6.
UNIT ID
1-250
7.
BAUD
9600, 4800, 2400
8.
SEL
STAR/DELTA
9.
RTC
(FACTORY SET)
SETTING THE METER: Before putting the instrument in service –
It has to be programmed for CT & PT ratio.
To ensure proper communication, set the correct –
•
The unit ID.
•
The Baud rate.
Also ensure the Auxiliary Power Supply (rated 24V DC).
To program the METER for the above parameters, 04 keys are provided viz. PROGRAM key PR G , UP Key ,DOWN key & the ENTER Key
1)
First connect the rated Auxiliary Supply with correct polarity & switch ‘ON’ the instrument.
2)
Pressing the PR G key, ‘2000’ will be d isplayed. Press the key to set ‘ 2006’, which is the password of the unit & common to all the units.
3)
Key.
Now Press the
The unit will display SET CTR . Again press the
KEY
to enter the desired CT
primary. Now press the or keys to set the CT primary value. CT primary can be set between 4000A in steps of 1A. Once the desired value is displayed, again press the
Key.
1-
The unit’s CT primary
is now set. 4)
Pressing the key, the unit will display CT SECONDARY. It can be set either 1A or 5A. By pressing key, enter into setting mode. Press key to select 1A secondary or press key to select it to 5A secondary .
5)
Now Press the
Key
& press the key. . The unit will display SET PT. Again press the
KEY
to enter
the desired PT primary. Now press the or keys to set the PT primary value. PT primary can be set between
3.3KV-400KV in steps of 1KV. Once the desired value is displayed, again press the
Key.
The
unit’s PT primary is now set. 6)
Now Press the
Key
& press the key. . The unit will display SET PT. Again press the
KEY
to enter
the desired PT secondary. Now press the or keys to set the PT secondary value. PT secondary can be set between
100V-110V in steps of 1V. Once the desired value is displayed, again press the
Key.
The unit’s PT secondary is now set. 7)
Now Press the
Key
& press the key.
, the unit will display INTEGRATION TIME. It can be set either
15 Min. or 30 Min. By pressing key, enter into setting mode. Press key to select 15 Min. or press key to select it to 30 Min.
AC CO RD EL EC TR O- TEC HNI CS PVT . LT D. 208A, Suchita Industrial Estate, Opp. Oswal Park, Pokharan Road No. 2, THANE (W)-400601 . Maharashtra. Telefax: 00 91 22 2173 6438, E-mail:
[email protected] (10/05/2007) OPR. MAN.: MULTIFUNCTION METER 3φ , 4-wire. Page 2/6
Once again press the key. The unit will display UNIT ID. Press the
8)
Key
to enter the desired unit
ID. Now press the or key to set the unit ID. Unit ID can set for any value between 1 to 250. Once the desired value is displayed, again press the
Key.
The unit’s ID is now set & the unit will again
display UNIT ID. Next pressing the key, the unit will display
9)
‘ BAUD ’ & its default value. Press the key to enter the
desired baud rate. Now press the or key to set the baud rate. The baud rate can set for any standard values of 2400, 4800, or 9600. Once the desired value is displayed, again press the
key
.
The unit’s BAUD is now set & the unit will again display ‘BAUD’.
key, the unit will display “SyS”. Press the key to enter the desired System Configuration. Now press the or key to set the System Configuration. The meter can be set in either Star
10) Next pressing the
(StAr) or Delta (dLtA) configuration. Once the desired System Configuration is displayed, again press the
key. The unit’s System Configuration is now set. 11)
Next Pressing the key, the unit will displays SET RTC. By pressing HOUR again press
key
key
key
unit will display SET
it will display default value. . Now press the o r key to set hour. Press the
& Press key it will display SET MINUTE. Again press
press the or key to set minute press
key.
key
it will display default value. . Now
In this way set DATE & TIME to come out of the RTC
setting press PR G key. Normally it is factory set. 12 ) Again press key & press key the unit will display ‘SAVE’. Press key to save the set values & quit. If you don’t want to save the values & want to quit without saving, press the key and the unit will display ‘QUIT’. Press the key to quit without saving .
13 ) Now the Instrument is set & ready to put into service. Switch OFF the Power Supply & connect the CT & PT secondary correctly. Switch ON the power supply & the instrument will continuously display the set parameters. 14 ) The set values are stored in non-volatile memory & are retained indefinitely even in absence of Auxiliary Power Supply. Display parameters: 1.
Export active Energy MWH
2.
Export Reactive Energy Lag MVARH
3.
Export Reactive Energy Lead MVARH
4.
Export MVAH
5.
Import Active Energy MWH
6.
Import Reactive Energy Lag MVARH
7.
Import Reactive Energy Lead MVARH
8.
Import MVAH
9.
Primary Current
10 . P-P Voltage 11 . 3PH. PF & Frequency 12 . MWATT & MVAR 13 . MVA
AC CO RD EL EC TR O- TEC HNI CS PVT . LT D. 208A, Suchita Industrial Estate, Opp. Oswal Park, Pokharan Road No. 2, THANE (W)-400601 . Maharashtra. Telefax: 00 91 22 2173 6438, E-mail:
[email protected] (10/05/2007) OPR. MAN.: MULTIFUNCTION METER 3φ , 4-wire. Page 3/6
14 . Time & Date 15 . Max. Demand MW
MODBUS Function DETAILS: The output of ACCORD make Multi-Function Meter Model MFM-02 is through RS-485 Communication port & uses the MODBUS RTU Protocol. The output can be directly given to a SCADA system or any other Data Acquisition system, operating on the same Protocol. The MODBUS protocol generates the format for the master’s query & places it on the device address as well as on the function code defining the requested action, data to be sent and on the error-checking field. The protocol also constructs the slave’s response message. This message also contains fields confirming the action to be taken, any data that is to be returned, and the error-checking field. If an error occurs in receipt of the message or if the slave is not able to perform the requested action, then the slave will construct an error message and will send it as its response. The interface (connection) between the Data Acquisition system and the transducer is established using twisted pair screened wire & all +ve & -ve terminals are multi-drop connected. Ensure proper earth connection to avoid any p ossibility of loop currents. Ensure matching of impedances of the termination load and that of the wire at both ends of the line. The maximum length of RS-485 network is limited to 3900 feet (1200 meters) & the maximum number of demand controller that can be connected is limited to 31 . The unique addresses of each MFM-03 can be set to any value between 1 and 250. The format for each byte in RTU mode is as follows. Coding system
:
8-bit binary, hexadecimal 0-9, A-F Two hexadecimal characters are contained in each 8-bit field of the message
Function Code
:
03 for read & 06 for write.
Data Format
:
32 bit or 16 bit as mentioned in the table below. Most significant byte first.
Error checking field
:
2 byte CRC (cyclical redundancy check).
Bits per byte
:
1 start bit 8 data bits 1 parity bit - none 1 stop bit if parity is used & 1 or 2 bits if no parity is used.
Transmission speed
:
2400, 4800, or 9600 bps.
Note that all the settings are user configurable, only at the instrument end.
AC CO RD EL EC TR O- TEC HNI CS PVT . LT D. 208A, Suchita Industrial Estate, Opp. Oswal Park, Pokharan Road No. 2, THANE (W)-400601 . Maharashtra. Telefax: 00 91 22 2173 6438, E-mail:
[email protected] (10/05/2007) OPR. MAN.: MULTIFUNCTION METER 3φ , 4-wire. Page 4/6
Modbus address for MFM-02 Multi-Function Meter
*All Registers are Floating. MODBUS Register Address
PARAMETER
No. Of Bits
40163
R CURRENT
32
40165
Y CURRENT
32
40167
B CURRENT
32
40151
RN VOLTAGE
32
40153
YN VOLTAGE
32
40155
BN VOLTAGE
32
40155
RY VOLTAGE
32
40159
YB VOLTAGE
32
40161
BR VOLTAGE
32
40169
ACTIVE POWER
32
40173
REACTIVE POWER
32
40171
APPARENT POWER
32
40175
POWER FACTOR
32
40177
FREQUENCY
32
40187
EXPORT MWH
32
40191
EXPORT REACTIVE LAG
32
40179
IMPORT MWH
32
40181
IMPORT REACTIVE LEAD
32
40183
IMPORT REACTIVE LAG
32
40193
EXPORT REACTIVE LEAD
32
40189
EXPORT APPARENT
32
40185
IMPORT APPARENT
32
AC CO RD EL EC TR O- TEC HNI CS PVT . LT D. 208A, Suchita Industrial Estate, Opp. Oswal Park, Pokharan Road No. 2, THANE (W)-400601 . Maharashtra. Telefax: 00 91 22 2173 6438, E-mail:
[email protected] (10/05/2007) OPR. MAN.: MULTIFUNCTION METER 3φ , 4-wire. Page 5/6
RS1 RS2 YS1 YS2
BS1 BS2
R
+TX
Y
B
N
-TX
E +
-
AUX SUP. 24V DC
PT S U P P L Y
N L B O
B CT
Y A
Y CT
R
D
R CT
OVERVIEW OF ACTIVE POWER QUADRANT INDICATION
-0.1
0
I
II
+P +Q
-P +Q -0.995
+0.1
1 -0.995
+0.995
1 +P -Q -P -Q IV III
-0.1
0
+0.995
+0.1
AC CO RD EL EC TR O- TEC HNI CS PVT . LT D. 208A, Suchita Industrial Estate, Opp. Oswal Park, Pokharan Road No. 2, THANE (W)-400601 . Maharashtra. Telefax: 00 91 22 2173 6438, E-mail:
[email protected] (10/05/2007) OPR. MAN.: MULTIFUNCTION METER 3φ , 4-wire. Page 6/6
