Entes EPM-04C-96 Ficha De Dados

In this menu user password is defined and activated.  
You must define and activate a 4 digit user password for preventing device
settings from the illegal usage.
There are 2 sub menu in the Pýn menu.

Press ESC button one by
one until “SAU E  SEt  yES”
is displayed.

Press SET button. When
“SAU E  SEt  yES” is
displayed  (If you press
ESC button or choose “no” option instead of “yES” then new data will
be cancelled and previous value will be activated).

This menu is used for activating the user password.
After the user password is activated for entering to the menus;
if the       button is pressed for 3 sec., while the instant values
are observed, user password is required. If the user password
is entered wrong device does not latch.
Note:  Factory default value of user password is “0000”

Press SET button for 3 sec. (trA Fo menu is displayed)

Find the “Pýn” menu by scrolling UP/DOWN buttons.

Press SET button (Pýn ACt IUA tE is displayed.)

2

Some buttons and button groups are used for the below special function
when device is in the measurement mode (Without selecting a menu).

: 

Switching to the previous menu and escaping the programming

menu without saving the changes.

If the Latch function is turned on (EPM-04C/04CS); output will be

released when current(s) of system is exceed the defined values.
When the system’s current  turns back to normal values then output
doesn’t react. Output can be trigged by the “ESC” button.

Monitoring for phase currents (A LED is activated) or phase voltages
(V LED is activated).
Used for changing the menu settings and parameters in programming
mode.

Energize the device after implementing the connections respected to the
user manual.
Enter the proper menu settings in order to correct measurements and
applications.

In this menu, current transformer ratio is set between 1 - 2000.
 (This menu is not available in the devices which are adapted
with CT-25.)
Note: If the current transformer is not used between the system
and device, current transformer ratio is entered as ‘1’.
Example: If a current transformer which has a ratio of 30/5A is
used between the system and device;
Current transformer ratio is entered as =  30/5 = 6.

:  Used for monitoring min. / max. currents and voltages or max. demand
values. Switching to the programming mode if it pressed for 3 sec. In
programming mode; it is used for switching to the menu and saving
changes for the parameters.

Press SET button; trA Fo Ctr menu is displayed (In CT-25 adapted
devices, trA Fo trn is displayed instead.)
(Not: trA Fo Utr or Con nEC týo n menu can be displayed by scrolling
the UP/DOWN buttons.)

Press SET button. Blinking the first digit of displayed value appears.
(”trA Fo Utr” or “Con nEC týo n” menu can be
programmed similarly.)

Enter the blinking digit value by scrolling
UP/DOWN buttons. Switch to the other
digits by using SET button, use ESC button
to go to previous digit. After you entered
the last digit press SET button, “trA Fo Ctr”
is displayed. (Data is entered but is not
activated yet. For activating the new data
please follow the below steps).

Press SET button for 3 sec. (trA Fo menu is displayed)

In this menu, voltage transformer ratio is set between 0000,1 - 4000,0.
Note: If the voltage transformer is not used between the system and

 

EPM-04, voltage transformer ratio is entered as ‘1’.

Example: If a voltage transformer which has a ratio of 34.5KV/100V
is used between the system and device; Voltage transformer ratio 

is entered as 345. (34500/100)

Connection can be selected as Star or Delta in this menu.

Phase-Neutral voltage monitoring can be implemented if the “Star”
connection is selected.

Phase-Phase voltage monitoring can be implemented if the “Delta”
connection is selected.

Press ESC button one by one until
“SAU E  SEt  yES” is displayed.

Press SET button. When “SAU E
 SEt  yES” is displayed (If you
press ESC button or choose “no”
option instead of “yES” then new
data will be cancelled and
previous value will be activated).

Press SET button. Blinking the first digit of displayed value appears.

Enter the blinking digit value by scrolling
UP/DOWN buttons. Switch to the other
digits by using SET button, use ESC button
to go to previous digit. After you entered
the last digit press SET button, “Pýn ACt
oF” is displayed.“on” can be selected by
scrolling UP/DOWN buttons. (Data is
entered but is not activated yet. For
activating the new data please follow the
below steps).

This menu is available for CT-25 adapted devices. User defines the
turn number, which is the number of how many tour the current 
cable has rounded into the CT-25. Numbers can be selected 
between 1-20. Greater the number of turn means greater the 
sensivity.

Press SET button 3 sec. (trA Fo menu is displayed.)

Find the “Pýn” menu
by scrolling
UP/DOWN buttons.

Press SET button
(Pýn ACt IUA tE is
displayed.)

Find the “Pýn CHA n9E” menu by scrolling UP/DOWN buttons.

This menu is used for changing the user password .
Note:  Factory default value for user password is “0000”

Press ESC button one by
one until “SAU E  SEt
yES” is displayed.

7

Serial Communication (for EPM-04CS)
EPM-04S have MODBUS RTU communication protocol which is optical
isolated. All measured parameters can be transfer to the
computer.Transformer ratios and communication parameters can be
set. Saved values can be reset.
Programmed parameter for communication explained below.
Press SET button 3 sec.
(trA Fo menu is displayed.)

Find RS-485 menu by
scrolling UP/DOWN
buttons.

Press SET button (Adr ESS menu is
displayed.)

Enter the parameter values by scrolling UP/DOWN buttons
(001...247 / 2400...38400 /no, EUEn, odd).

Press SET button, “Adr ESS / bAU d / PArýty” is displayed. 

(Data is

entered but is not activated yet. For activating the new data please
follow the below steps)

Press ESC button one by one until “SAU E  SEt  yES” is displayed.

Press SET button. When “SAU E  SEt  yES” is displayed (If you press
ESC button or choose “no” option instead of “yES” then new data will
be cancelled and previous value will be activated).

Find “Adr ESS / bAU d / PArýty” menu
by scrolling UP-DOWN buttons.

03H

READ HOLD REGISTERS

06H

PRESET SINGLE REGISTER

10H

PRESET MULTIPLE REGISTERS

Standart MODBUS RTU message is shown below.

T

ADDRESS

 8 BIT

FUNCTION
     8 BIT

 DATA
NX8BIT

CRCH

CRCL

T

The T times corresponds to a time in which data must not be exchanged on the
communication bus to allow the connected devices to recognize the end of one
message and the beginning of another. This time must be at least 3.5 characters
at the selected baud rate. Adress range (1-247)  is address of the connected
device. The data field contains data sent to the slave by master or data sent to
master by slave.
CRC is a error check method by using MODBUS RTU protocol and consists of 2
bytes.

Read Hold (03) function is used for reading measured values and set value. If any
request of reading of a register, excepted mentioned in register table, device will
send an error message.
For example to read phase1 voltage by sending a message to the device.
01 03 00 00 00 02 XX XX
01 Device address
03 Function
00 MSB address
00 LSB address
00 Register number MSB
02 Register number LSB
XX CRC MSB
XX CRC LSB

Preset Multiple Register(10H) is used to set more then one register at same time.
i.e. Setting CT as 100, Ut as 20.0;
01 10 80 00 00 02 04 00 C8 00 64 XX XX
01 Device Address
10 Function
80 MSB address
00 LSB address
00  Register number MSB
02  Register number LSB
04  Byte count
00  Data MSB
C8  Data LSB
00  Data MSB
64   Data LSB
XX  CRC MSB
XX  CRC LSB

Preset Single Register (06) function is used for writting the setting values, erasing
the energy counter or resetting the min., max., max. demand values.
Current transformers ratio can be set 0-2000, voltage transformer ratio can be set
1-40000.
i.e.  Setting CT as 100;
01 06 80 02 00 64 XX XX
01 Device address
06 Function
80 MSB address
02 LSB address
00 Data MSB
64 Data LSB
XX CRC MSB
XX CRC LSB

Utr

- 0001

ConnEC -  StAr

Frq Hý   - 63
F-H HyS - 01.00
Frq Lo - 47
F-L HyS - 01.00
Frq ond - 003.0
Frq oFd - 003.0

AddrES - 001
PArty

I-H L-1 - 5.000
I-H L-2 - 5.000
I-H L-3 - 5.000
I-H L-n - 5.000
I-H HyS - 0.100
I-H ond - 010.0
I-H oFd - 010.0
I-L L-1 - 0.000

Pin Act - oF
Pin

- 0000

Out relay

- U-I

Out Inverse - oFF

I-L L-2 - 0.000
I-L L-3 - 0.000
I-L L-n - 0.000
I-L HyS - 0.200
I-L ond 

I-L oFd 

-  010.0

Str Art dEL - 0.000
Auto reset

- oFF

Cur ýns trip - oFF

U-H L-1 - 250
U-H L-2  - 250
U-H L-3 - 250
U-H HyS - 10
U-H ond - 003.0
U-H 0Fd - 003.0
U-L L-1 - 180
U-L L-2 - 180

U-L L-3           -  180
U-L HyS            -  010.0
U-L ond

U-L oFd

- 003.0

VoL PHS SEq - oFF
VoL ýnS trýP

- oFF

Press SET button. When
“SAU E  SEt  yES” is
displayed (If you press
ESC button or choose
“no” option instead of “yES” then new data will be cancelled and
previous value will be activated).

Rated Voltage (Un)

: Please look at back side of the device.

Operating frequency (f)

: 45-65 Hz

Auxiliary Supply Power Consumption

: < 4 VA

Measuring Input Power Consumption

: < 1 VA

Measurement range

                       Current 

: 0.05-5.5A~

: 2 - 120 A~ for CT-25

                       Voltage

: 10-300 V AC (Phase - Neutral)

10-500 V AC (Phase - Phase)

Class

: 1±1% digit [(10%-100%) x full scale]

Current Transformer Ratio

: 1 ... 2000

Turn number for CT-25 adapted models :  1 .... 20

Voltage Transformer Ratio

: 1 ... 4000

Max. Ctr x Vtr

:  40.000

Communications (for EPM-04CS)

:  MODBUS RTU (RS 485)
  Optic isolated, programmable

        Baud Rate (for EPM-04CS)

:  2400-4800-9600-19200-38400 bps

        Address (for EPM-04CS)

:  1-247

        Parity (for EPM-04CS)

:  No, Odd, Even, 8 Data Bits, 2 Stop Bits

Output Relays(for EPM-04C/04CS)

: 2 NO, 250 V AC, 5A, 1250 VA

Ambiant Temperature

: -5°C; +50°C

Display

: Red LED display

Dimensions

: PR-19, PK-26

Equipment Protection Class

: Double Insulation - Class II (   )

Box Protection Class

: IP 40

Terminal Protection Class

: IP 00

Box Material 

                          

: Nonflamable

Mounting

: Panel Mounted (PR-19)

  Rail Mounted  (PK-26)

Wire Cross section (for terminals)

: 2.5 mm

2

Weight

: 0.56 kg (PR-19)

0.52 kg (PK-26)

Mounting Category

: Class III

Panel Size 

: 91x91 mm (PR-19)

46x107 mm  (PK-26)

1) Phase currents (IL), Neutral current (IN), Phase-Phase and Phase-Neutral

voltages can be measured .
2) Existence of live phases can be observed by L1-L2-L3 LEDs on the device.
3) Min. and max. values for measured currents and voltages can be monitored
with only one button.
4) Max. demand values for measured current can be monitored, demand
time can be defined in “dE tý” menu.
5) A 4 digit password can be defined from pin menu in order to prevent the
change of settings by unauthorized person.
6) Current transformer ratio is programmable. (1 .... 2000)

Current transformer ratio can be programmed in term of “turn number” 
between 1.....20 (for CT-25 adapted devices).
Voltage transformer ratio is programmable. (0.1 .... 4000)

7) A user defined measurement range is used for monitoring the voltages
and currents; and Out1 & Out2 outputs are used for warning the user and
disconnecting the device in case of exceeding the limits of measurement
range.
8) In case of using the device for measuring the current values of motors etc.,
start delay (AUto rSt) function can be used for preventing the equipment
against the improper tripping, which is because of the demurrage current.
9) When a failure has occured use the Latch function, in order to keep the
device with saving its position (Latched), even if the failure conditions are
removed.
7th, 8th and 9th subjects are valid for EPM-04C/04CS.

Press SET button (”001 / 9600 /no” menu
is displayed.)

31 DEVICES CAN BE CONNECTED AT THE SAME LINE

GND

TR B

A

GND

TR B

A

GND

TR B

A

GND

B

A

RS485/RS232
 CONVERTER

PC

...

EPM-04CS-1

EPM-04CS-2

EPM-04CS-31

MAX. 1200 mt.

  M A X .   2 4 7   D E V I C E S   C A N   B E   C O N N E C T E D   AT   S A M E   L I N E   B Y   U S I N G   R E P E AT E R .

GND

TR B A

...

EPM-

04CS 

-247

GND

B

A

RS485/RS232
 CONVERTER

PC

...

EPM-

04CS

-1

EPM-

04CS

-2

EPM-

04CS

-31

REPEATER

MAX. 1200 mt.

MAX. 1200 mt.

1

2.00

120

2

1.00

60.0

3

0.66

40.0

4

0.50

30.0

5

0.40

24.0

6

0.33

20.0

7

0.28

17.1

8

0.24

15.0

9

0.22

13.3

10

0.20

12.0

11

0.18

10.9

12

0.16

10.0

13

0.15

9.23

14

0.14

8.57

15

0.13

8.00

16

0.12

7.50

17

0.11

7.05

18

0.11

6.66

19

0.10

6.31

20

0.10

6.00

I-H L-1 - 100.0
I-H L-2 - 100.0
I-H L-3 - 100.0
I-H L-n - 100.0
I-H HyS - 2.000
I-H ond - 010.0
I-H oFd - 010.0
I-L L-1

- 0.000

I-L L-3

- 0.000

I-L HyS

- 2.000

I-L oFd 

-  010.0

Str Art dEL - 0.000
Auto reset

- oFF

Cur ýns trp

- oFF

For activating the user password, in the measurement mode

For activating the user password, in the measurement mode