NF29 (POWER METER)

LSR.NO: 16-02-NF-
LSUPPLY VOLTAGES: 3 X 240.0V AC [PTR SELECTABLE] LCURRENT INPUT: -/5Amp. [SELECTABLE]

LAUXILLERY SUPPLY: 80 TO 270V AC.

LSTANDARDS USED : STABLE AC VOLTAGE & CURRENT SOURCE, PHASE SHIFTING TRANSFORMER, POWER METER & INTEGRATOR
WITH BASIC ACCURACY OF 0.35%, STANDARD ENERGY METER OF ACCURACY CLASS 0.5s TRACEABLE TO NATIONAL STANDARDS.

LTRACEABILITY: THE ABOVE METER(S) WAS TESTED AND CALIBRATED AGAINST "MTE"0.05 STANDARD (MASTER CALIBRATING
INSTRUMENT) MODEL PRS 1.3.THE MTE STANDARD METER IS TRACEABLE TO INTERNATIONAL STANDARDS.

LRESULT OF TEST: Pass LTEST ENGINEER: KST L DATE: 02/02/2016

WARRANTY
THE EQUIPMENT SUPPLIED UNDER THIS T.C. IS GURANTEED AGAINST DESIGN, MANUFACTURING AND WORKMANSHIP DEFECTS FOR A
PERIOD OF 12 MONTHS FROM THE ABOVE DATE. TRINITY ENERGY SYSTEMS UNDERTAKES TO REPLACE / REPAIR THE FAULTY UNIT AT
OUR WORKS FREE OF COST. THE MANUFACTUR’S LIABILITY IS LIMITED TO THE VALUE OF GOODS SUPPLIED. THE MANUFACTURER WILL
TAKE NO RESPONSIBILITY FOR ANY CONSEQUENTIAL DAMAGE CLAIMED WHATSOEVER. THIS WARRANTY CERTIFICTE IS REQUIRED TO
BE PRODUCED FOR OBTAINING ANY REPAIR OR REPLACEMENT / SERVICE FROM THE MANUFACTURER. THE MANUFACTURING
RESERVES THE RIGHT TO DETERMINE THE REASON FOR DEFECT / DAMAGE BEFORE PROVIDING SERVICE.

LDisplay Parameters:
Page 1. Page 2. Page 3. Page 4.
Phase to Neutral Voltage Phase to Phase Voltage Phase Current Phase PF
Vrn R Phase Vry RY Phase Ir R Phase Current PFr R Phase PF
Vyn Y Phase Vyb YB Phase Iy Y Phase Current PFy Y Phase PF
Vbn B Phase Vbr BR Phase Ib B Phase Current PFb B Phase PF
Page 5. Page 6. Page 7. Page 8.
KWr R Phase KW KVARr R Phase KVAR KVAr R Phase KVA KVA System KVA
KWy Y Phase KW KVARy Y Phase KVAR KVAy Y Phase KVA KW System KW
KWb B Phase KW KVARb B Phase KVAR KVAb B Phase KVA PF System PF & Hz Frequency
Page 9. Page 10. Page 11. Page 12.
KVAR System KVAR Kwh System Kwh Kvarh System Kvarh Kvah System Kvah

LIn ideal condition the back light will turn off after 5 min.And if any key is pressed back light will on.

LINSTALLATION & COMMISSIONING:

1. Push the unit into the panel and mount using the clamps provided.
2. Connect the three phases with the phase sequence being R-Y-B to the corresponding terminals on the unit. Make sure that the three phases
coming to the unit come through control fuses of 1.0 Amp rating. This will protect the electronics inside from damage due to sever over voltages
or phase faults in the system.
3. In case of three phases four wire systems, connect the neutral to the terminal marked N.
4. Connect the two wires from the R-phase CT to terminals marked M1 & L1 such that S1 from CT goes to M1 on the unit.
5. Connect the two wires from the Y-phase CT to terminals marked M2 & L2 such that S1 from CT goes to M2 on the unit.
6. Connect the two wires from the B-phase CT to terminals marked M3 & L3 such that S1 from CT goes to M3 on the unit.
7. Switch on the auxiliary supply. The unit will come alive. The first parameter to be displayed will be CT Primary and then Station ID. This is
displayed only once at the time of start-up of the unit and then show first page.

LCHANGING CT RATIO:

Press the key for 10 seconds, the display will show present CT primary. Press same key to select CT Primary. At end of display page, “P” will

start blinking which shows that parameter is selected for programming. Now, you can change CT Primary by pressing up or down key. The CT
Primary can be changed in steps of 5A up to 200A, and in steps of 25A thereafter up to 8000A. After reaching 8000, if the key is kept in pressed
condition, the CT Primary will rollover and start with 5A again. When the desired CT Primary is reached, leave the key. After 10 seconds, the meter
will automatically reset and show the First PTR, Second CT Primary and Third STATION ID, which has been programmed, and then show page you
have freeze last time when meter was in scroll mode otherwise it will show the page you have keep last time when meter was on manual mode.

LCHANGING SCROLL MODE:

Press the key for 10 seconds, the display will show present CT primary. Now, Press key to reach SCROLL MODE status (Yes or No). Press
key to select Scroll. At end of display page, “P” will start blinking which shows that parameter is selected for programming. Now, you can change

Scroll mode to YES or NO by pressing up or down key. After setting the desired Scroll Mode leave the key. After 10 seconds, the meter will
automatically reset and show the First PTR, Second CT Primary and Third STATION ID, which has been programmed, and then show page you have
freeze last time when meter was in scroll mode otherwise it will show the page you have keep last time when meter was on manual mode.

LCHANGING PT RATIO:

Press the key for 10 seconds, the display will show present CT primary. Now, Press key to reach Ptr. Press key to select parameter for
programming. At end of display page, “P” will start blinking which shows that parameter is selected for programming. Now, you can change PT Ratio by

pressing up or down key. PT Ratio can be set to 1, 3.77, 4, 20, 30, 60, 100, 200, 300 or 600. When the desired PT Ratio is set, leave the key.
After 10 seconds, the meter will automatically reset and show the First PTR, Second CT Primary and Third STATION ID, which has been programmed,
and then show page you have freeze last time when meter was in scroll mode otherwise it will show the page you have keep last time when meter was
on manual mode.
L CHANGING STATION ADDRESS:
Press the key for 10 seconds, the display will show present Ptr. Now, Press key to reach Addr. Press
key to select parameter for programming. At end of display page, “P” will start blinking which shows that
parameter is selected for programming. Now, you can change Station Address by pressing up or down
key. Station Address can be programmed from 1 to 255. When the desired Station Address is reached leave
the key. After 10 seconds, the meter will automatically reset and show the First PTR, Second CT Primary and
Third STATION ID, which has been programmed, and then show page you have freeze last time when meter
was in scroll mode otherwise it will show the page you have keep last time when meter was on manual mode.

TRINITY ENERGY SYSTEMS PVT, LTD.

Protocol details for RS485 MODBUS communication of Trinity meter NF29.

Communication Line Parameters: 9600 / 8 / N / 1

The register map is described below. All addresses are in decimal. All parameters are
Unsigned long. If illegal address is sent in the query or the host tries to read more than
32 bytes of data in one query, exception message is generated.

The parameter name (description) and multiplication factors are also mentioned.
Reserved values are for future use. They are transmitted as zeroes.

3 Phase 3 phase 3 phase 3 phase 3 phase

3000 - 3019 3030 - 3049 3060 - 3079 3090 – 3109 3120 – 3139 MF

3000-KVA 3030-KWh 3060-Reserved 3090-Reserved 3120-KVA-R X100

3002-KW 3032-KVAh 3062-Reserved 3092-Reserved 3122-KVA-Y X100
3004-KVAr 3034-KVARh 3064-Reserved 3094-Reserved 3124-KVA-B X100
3006-PF 3036-Hz* 3066-Reserved 3096-Reserved 3126-KW-R X1000
3008-Avg.VLL 3038-Vry 3068-Vyb 3098-Vbr 3128-KW-Y X100
3010-Avg.VLN 3040-Vr 3070-Vy 3100-Vb 3130-KW-B X100
3012-Avg.Amps. 3042-Ir 3072-Iy 3102-IB 3132-KVAR-R X100
3014-KVAR-B. 3044-PF-R 3074-PF-Y 3104-PF-B 3134-KVAR-Y X100

Hz - Hz has a multiplication factor of 100 & not 1000 .e.g. If Hz is 48.33, then it is sent as 4833.
 for providing resolution, all parameters except PF are multiplied with 100 before transmitting. Thus if the KVA
value as 278.99, it is sent out as 27899. PF has a MF of 1000, instead of 100. Thus, a PF value of 0.987 is
sent as 987.

If an attempt is made to read from some address other than the valid addresses, the exception response is
sent.

EXCEPTION CODE:
In the event that the query from the HOST has no communication error, but there is some error in specifying
the address of registers to be read, the meter returns an exception message .The format of the exception
message will be as
Under:

Unit Address 0x83 Exception code CRC CRC

Exception Code can have only one value: 03: If the address is not a valid start address or host has requested
more than 32 bytes of data, this code is returned.