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page 15/15                                                                      KKEW9LC05-A/0-20160901

Wire Connection

A+

SCOM

B-

DO2

DO1

3

4

Note: 1. For voltage input connection terminal,bracket terminals (Ua) (Uc) (Ub) shows 3 phase 3 wire connection method,

          2. Current input is current input terminal , all the inputs and outputs must be coherent

Voltage direct input

Voltage input via PT

Voltage input

Voltage input

Current input

Current input via CT

Current input

Model 1: (3pcs CT) 3 phase 4 wire working mode 

Model 2: (2pcs CT): 3 phase 3 wire working mode

Voltage direct input

Voltage input via PT

Current input via CT

A
B
C
N

24 25 26

28 29

27

23

21 22

20

23

21 22

20

A
B
C
N

A
B
C

24 25 26

28 29

27

23

21 22

20

23

21 22

20

A
B
C

*             *

Explanation :

A. Voltage input: Input voltage should not be higher than the rated input voltage of meter, otherwise a PT should be used.

B. Current input: Standard rated input current is 5A. A CT should be used when the input current is bigger than 5A. If some other meters are

connected with the same CT , the connection should be serial for all meters.

C. Please make sure that the input voltage is corresponding to the input current, they should have the same phase sequence and direction,

otherwise data and sign error may occur (power and energy).

D. The connection mode of meter which is connected to power network should depend on the CT quantity. For 2pcs of CT, it should be 3 phase

3 wire connection. For 3pcs of CT, it shoud be 3 phase 4 wire connection.

E. Please pay high attention on the difference between 3 phase 3 wire and 3 phase 4 wire connection , becasue wrong connection may lead to

incorrect calculation of power factor, power and energy .

Caution:

1. Power supply connection must be correct.

2. Pay attention on the phase sequence of voltage signal input.

3. Current signal input shoudl be connected as per the connection drawing.

4. Connection mode should accord to the setting of user menu link.

5. Energy pulse output is open collector output.

6. Isolation between power supply and circuit board, in case of leakage switch mis-action.

Содержание EW9L C Series

Страница 1: ...demand statistics function Optional harmonic analysis funtion including the total harmonic EW9L C EW9L S EW9L F EW9L H No No No 4 20mA No No No No No No Yes Yes 1 loop RS485 1 loop RS485 1 loop RS485...

Страница 2: ...DI connection Pulse output connection DC 2000V Input output power supply to Meter cover 5M Symbol Meaning voltage current power Frequency No symbol Name Function Set Key Check measuring value and wor...

Страница 3: ...percentage Total voltage harmonics percentage A Phase parameters B Phase parameters C Phase parameters Measuring Status Menu Operation press SET more than 5 seconds First class Second class Third cla...

Страница 4: ...eters Meter s address range Baud Rate Data format 1st Alarm mode 1st Alarm unit 1st alarm value setting 1st alarm Hysteresis value setting 1st alarm relay output choice 1st alarm start delay 1st alarm...

Страница 5: ...lash flash flash flash flash flash flash 1st transmition high limit value 1st transmition low limit value year Month Day Hour Minute Second Period 1 tarrif rate Period 2 tarrif rate Period 12 tarrif r...

Страница 6: ...delay Alarm mode Alarm unit Alarm value Alarm hysteresis value alarm relay setting alarm start delay alarm finish delay Input 1111 to clear energy Input 2222 to clear maximum demand input 1234 to res...

Страница 7: ...ut AP RP and RS485 interface for the transmit of energy data The energy pulse of optical couple relay with open collector enables the long distance transmit of active energy AP reactive energy RP Remo...

Страница 8: ...dress function code error code and check area When the high bit position of function code area is 1 it means the present data frame is abnormal response Below table illustrates the meaning of abnormal...

Страница 9: ...st send read 01 address meter read the current value data started from 400C A phase current register Hexadecimal code of 100 000 is 000186A0 hexadecimal code of 200 000 is 00030D40 hexadecimal code of...

Страница 10: ...Data byte length low bit Data byte length Data 1 high bit Data 1 low bit CRC code low bit CRC code high bit Meter address Function code Start address high 8 bit Start address low 8 bit Data byte lengt...

Страница 11: ...122 2 long long Note Note Note Note No decimal point active power maximum demand reactive power demand reactive power maximum demand A phase voltage harmonic content B phase voltage harmonic content C...

Страница 12: ...transmit mode refer to table 1 1st transmit unit note note Link mode extend note note note note note Communication address Baud rate Data format switch output switch input remote input extend No deci...

Страница 13: ...demand happen time day reactive power maxi demand happen time hour reactive power maxi demand happen time minute reactive power maxi demand happen time second no decimal point Reference table 1 Refer...

Страница 14: ...ion value Menu display Communication value D7 D6 D5 D4 D3 D2 D1 D0 AL1 status 0 No alarm 1 Alarm AL2 status 0 No alarm 1 Alarm Note Measure Satus Indication switch output S1 status 0 close 2 disconnec...

Страница 15: ...r than 5A If some other meters are connected with the same CT the connection should be serial for all meters C Please make sure that the input voltage is corresponding to the input current they should...

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