POWERMETER
EPR-04 / EPR-04S
FUNCTIONS OF BUTTONS
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, cos
j
. 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.
ESC
SET
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.
1
Using of EPR-04/04S:
Parameters (Cos
j
; W; VAr; VA; kWh, kVarh) are monitored in L1, L2, L3
displays by scrolling UP/DOWN buttons. Total Active (
S
W), Total Reactive
Power (
S
VAr), Total Apparent Power (
S
VA) and Cos
j
values and average
values of these parameters are monitored in 4th display.
Monitoring of Min.,Max. and Max. Demand Values:
Min. and max. values are defined for W, VAr, VA,
S
W,
S
VAr,
S
VA; demand
values are defined for W, VAr, VA,
S
W,
S
VA,
S
VAr.
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. Cos
j
) if demand button is pressed, instant value
is continued to display.
H-L-M LEDs
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
Energy Pulse Outputs
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.
Measured Parameters:
Digital Input
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).
General :
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.
Cos
j
AI ( kWh) (Import Active Energy)
S
W (Total Active Power)
W (Active Power)
AE (kWh) (Export Active Energy)
S
VAr (Total Reactive Power)
VAr (Reactive Power)
rI (kVArh) (Import Reactive Energy)
S
VA (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.
Current Transformer Ratio Setup
Note:
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.
If user password is activated and set button is pressed for
3 seconds, a pin code is required in order to enter to the menu.
A3615/Rev.5
8
POWERMETER
EPR-04 / EPR-04S
TECHNICAL DATA
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
Factory Settings
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.
PRECAUTIONS FOR INSTALLATION AND SAFE USE
Calculation Methods for Active / Reactive Power Values
If the led on the most right side blinks it represents that active / reactive
powers 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
S
W 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
S
VAr 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
In CT-25 (120A) compliant models, only CT-25 current transformer must be used.
Other type of CTs have a high risk to damage to device.
No responsibility is assured by the manufacturer or any of its subsidiaries
for any consequences arising out of the use of this material.
Total Display
SET button
Max. LED
Phase Displays
UP button
DOWN button
Minimum LED
Demand LED
ESC button
