Entes EPR-04S-96 Data Sheet

When W led lights,it shows max.power values which are measured
instantaneously and it shows total max demand values. Also it is
used for moving upwards in the menu.

When W led lights,it shows min.power values which are measured
instantaneously and it shows total demand values. Also it is used
for moving downwards in the menu.

It is used for passing between parameters such as W, Var, VA,
KWh, KVArh, cosj. When it is pressed for 3 second, adjustment
mode is entered. In the adjustment mode it is used for saving
parameters and moving to the sub menu.

In the adjustment mode, it is used for entering to the upper menu
or it is used for quiting from the adjustment mode without saving
the values.

Parameters (Cosj;  W; VAr; VA; kWh, kVarh) are monitored in L1, L2, L3
displays by scrolling UP/DOWN buttons. Total Active (SW), Total Reactive
Power (SVAr), Total Apparent Power (SVA) and Cosj values and average
values of these parameters are monitored in 4th display.

Min. and max. values are defined for W, VAr, VA, SW, SVAr, SVA; demand
values are defined for W, VAr, VA, SW, SVA, SVAr.
If measured instant value is smaller than min. value which was stored before,
it is stored as new min. value. If measured instant value is greater than max.
value which was stored before, it is stored as new max. value.
Demand value is the average value of the measured values in  demand time
(15 minute).
If one of defined parameters is displayed (ie. “W”) when deman button is
pressed min., max or max. demand values are displayed. When an undefined
parameter is displayed (ie. “Cosj”) if demand button is pressed, instant value
is continued to display.

H-L-M LEDs are dedicated to displaying the min., max. and max. demand
values according to selected parameters.
H: Maximum Value, L: Minimum Value, M: Max. Demand Value

EPR-04/04S  has 2 Energy Pulse Outputs. These outputs give the pulses
only for E-1 (Energy Counter).
Pul1 and Pul2: In “o-1 (Pulse1)”, “o-2 (Pulse2)” menus which are in the
pulse menu, device give pulse according to selected energy parameters
as [Active energy (ACt, A-I, A-E), Reactive energy (rEA, r-L, r-C)].
Please refer to the pulse menu for the coefficients of energies.

EPR-04/04S has 2 digital inputs. Digital inputs have 2 functions:
- When a remote device has activated, situation of this device which is
conncected to the digital input, can be monitored according to data register
(Battery, thermostat, circuit breaker and motor position).
- Controlling energy counters and determining which energy counter will be
active (Example: It is used for measuring of energy separately at the using
of network and generator).

EPR-04/04S is a microprocessor based device which is developed for
measuing the power and energy values in an Electrical Network. Measured
parameters are displayed in 4 displays separately EPR-04S has an MODBUS
serial communication interface.

Cosj

AI ( kWh) (Import Active Energy)

SW (Total Active Power)

W (Active Power)

AE (kWh) (Export Active Energy)

SVAr (Total Reactive Power)

VAr (Reactive Power)

rI (kVArh) (Import Reactive Energy)

SVA (Total Apparent Power)

VA (Apparent Power)

rE(kVArh) (Export Reactive Energy)  

(This menu is not available in the devices which are adapted with
CT-25.)
In this menu, current transformer ratio is set between 1 - 2000.

If the current transformer is not used between the system

and EPR-04/04S, current transformer ratio is entered as ‘1’.
Example:

 If a current transformer which has a ratio of 250/5A is

used between the system and EPR-04/04S; Current transformer
ratio is entered as “50” (250/5).

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

Press SET button. Blinking the first digit of displayed value appears. (trA Fo
Utr 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 / trA Fo trn / trA Fo Utr” 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).

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

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” option by using
UP-DOWN buttons, new data will be cancelled and previous value
will be activated.

Operating Voltage (Un)      

: Please look at the back labels on 
   the device

Operating frequency (f)

: 45-65 Hz

Auxiliary supply Power Consumption

: < 4 VA

Measuring Input Power Consumption : < 1VA
VIn

: 10-300VAC 45-65Hz. (L-N)
: 10-500VAC 45-65Hz. (L-L)

IIn

: 0.05 - 5.5 A~
  2-120 A ~ (for CT-25)

Measuring Range

: 0...215 M(W,VAr,VA)
: 999999999.999 kWh,kVArh

Measuring Category

: CAT III

Class

: 1±1digit   [(%10-%110) xFull Scale]

Voltage Transformer Ratio

: 0.1 ... 4000.0

Current Transformer Ratio

: 1 ... 2000

Max. Ctr x Vtr

: 40.000

Demand Time            

: 1-60 min. (programmable)

Serial Interface (for EPM-04S)

: MODBUS RTU (RS 485)
: Optically Isolated, programmable

   Baud Rate (for EPM-04S)

: 2400-38400 bps

   Address (for EPM-04S)

: 1-247

   Parity (for EPM-04S)

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

Pulse Output 

: NPN Transistor

   Switch Period

:

Min. 100 msec pulse perriod

            80 msec pulse width

   Operation Current

: Max. 50 mA

   Operation Voltage

: 5.....24 V DC, max. 30 VDC

Input 

: 12...48 V DC

Ambient Temprature

: -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

Box Material                        

: Non-flammable

Installation

: Panel Mounted (PR-19)
  Rail Mounted (PK-26)

Wire Crossection (for terminal block)

: 2.5 mm²

Weight

: 0.45 kg (PR-19, PK-26)

Installation Category

: Class III

Trafo :
Ctr (Current Transformer Ratio) : 0001
trn (Turn number for CT-25 device): 01
Utr (Voltage Transformer Ratio) : 0001.0
CAL (Calculation Method) : 1

Pin : 0000 (Not Activated)

RS-485 :
Adr (Address) : 1
Bau (Baud Rate) : 9600
PAr (Parity) : no

Eng Cnt :
E-1 (Energy Counter 1) : on
E-2 (Energy Counter 2) : on

PULSE :
rAt ýo (Ratio) : 1k
o-1 (Output 1) : A-I
o-2 (Output 2) : r-L

dEtý (Delay Time) : 15

Failure to follow those instructions will result in death or serious injury.
- Disconnect all power before working on equipment..
- When the device is connected to the network, do not remove the front panel.
- Do not try to clean the device with solvent or the like.Only clean with dry cloth.
- Verify correct terminal connections when wiring.
- Electrical equipment should be serviced only by your component seller.
- Only for rack panel mounting.

If the led on the most right side blinks it represents that active / reactive
power’s direction is inversed.
There are two methods for calculating total active and total reactive powers:
1) Active / Reactive power can be calculated by summing import and export
values and displaying as a single value.
2) Active / Reactive power can be calculated according to direction as
import / export.

Note :
1) The dot at the most right digit of the fourth display (During SW is
displayed) represents that displayed value is export active power value.
Vice versa, displayed value is import active power value.
2) The dot at the most right digit of the fourth display (During SVAr is
displayed) represents that displayed value is capacitive reactive power
value. Vice versa, displayed value is inductive reactive power value.
3) The displayed parameter will not change if power is off after 30
seconds of stand-by (ie. W).

Phase

Displays

Total Display

SET button

Max. LED

Minimum LED
Demand LED

ESC button

UP

button

DOWN

button

Total Display

SET button

Max. LED

Phase Displays

UP button

DOWN button

Minimum LED
Demand LED

ESC button