ENTES EPM-R4C, EPM-R4D User guide

RAIL MOUNTED AMMETER
EPM-R4D / EPM-R4C

Setting of Low Setpoint Value (For EPM-R4C )

Setting of Hysteresis Value (For EPM-R4C)

Press SET button for 3 sec.

Press UP or DOWN button until HYS is
displayed.

Press SET button.

Press UP or DOWN button until requested
value is displayed. (If pressed
buttons continuously, displayed value is
changed quickly).

Press SET button to save.

hys

5.000

6.000

Setting of On Time Value (For EPM-R4C)

Press SET button for 3 sec.

Press UP or DOWN button until On t is
displayed.

Press SET button.

Press UP or DOWN button until requested
value is displayed. (If pressed
buttons continuously, displayed value is
changed quickly).

Press SET button to save.

Setting of Off Time Value (For EPM-R4C)

Press SET button for 3 sec.

Press UP or DOWN button until OF t is
displayed.

Press SET button.

Press UP or DOWN button until requested
value is displayed. (If pressed
buttons continuously, displayed value is
changed quickly).

Press SET button to save.

Setting of Start Time Value (For EPM-R4C)

Press SET button for 3 sec.

Press UP or DOWN button until Strt is
displayed.

Press SET button.

Press UP or DOWN button until requested
value is displayed. (If pressed
buttons continuously, displayed value is
changed quickly).

Press SET button to save.

Setting of Auto Start Mode (For EPM-R4C )

Press SET button for 3 sec.

Press UP or DOWN button until AutO is
displayed.

Press SET button.

Press UP or DOWN button until requested
value is displayed.

Press SET button to save.

o

oF

1

Press SET button for 3 sec.

Press UP or DOWN button until SP L is
displayed.

Press SET button.

Press SET button to save.

2500

2250

Press UP or DOWN button until requested
value is displayed. (If pressed
buttons continuously, displayed value is
changed quickly).

Precautions For Installation and Safe Use

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 the device with
a dried cloth.
Verify correct terminal connections when wiring.
Electrical equipment should be serviced only by your compedent seller.
Only for rack panel mounting.

No responsibility is assured by the manufacturer or any of its subsidiaries
for any consequences arising out of the use of this material.

EPM-R4D (Ammeter With Demand) :

EPM-R4D is designed to measure RMS value of AC current which flows from the line and
saving the instant and average demands. The current transformer ratio can be set between
5/5A and 10000/5A by the buttons on the panel. Settings and demands remain stored in the
memory when the power supply is OFF, and the ammeter continues its function by this stored
value when the power supply is ON.

EPM-R4C (Ammeter With Setpoint) :

EPM-R4C measures the RMS value of AC current which flows from the line. If the measured
AC current is over the high setpoint, or it is under the low setpoint, output relay is activated
at the adjusted time delay. Also, it includes all functions of EPM-R4D.

* Important Notice: The secondary of current transformer is limited at 5A.
Demands :

Maximum average current value are stored. It can be read or deleted by user. Demand value
remains stored, when the power supply is off. Seen demand at the display is avarage of the
demands in demand time.

Peak value:

The maximum instant current value are stored. It can be read or deleted by user.

Setpoint ( s p h v e s p ):

When the AC current which flows through the device is over the high setpoint value or it is
under the low setpoint value, the output relay is activated in order to generate an error signal,
at the end of the delay time. If the AC current value is under the setting value, before the end
of the delay time, the relay resets itself and no tripping occurs.

Latch Function ( ) :

In case of overcurrent or undercurrent the output relay is activated. Latch function is used
to select the output relay operation mode. Either OF or On position may be selected.
At position OF: If the current is below the setting value, output relay releases
At position On: Even if the current is below the setting value, output relay remains
activated and releases only by pressing the set button.

Instant Tripping ( ) :

If the AC current is over the1.5 times of setting value or it is under the 0.5 times of setting
value, the output relay is activated without any delay time. This function is user-selectable.

Start Time Delay : ( ): When the current is start flowing, the setpoint values are ignored

for the determined time. If auto start mode is activated, after the AC current is cutted, the
device returns into the starting state.

Automatic Start Mode ( ): If this function is disabled (off), start-up delay (Strt) is

activated only when initial current is applied to the measurement input of device. However,
when this function is enabled (on), if measured current value decreases to 0 (zero) value
and increases again, start-up delay is activated.

Selection of Current Transformer Primary Value (For EPM-R4C and R4D)

Press SET button for 3 sec.

Press UP or DOWN button until Ctr is
displayed.

Press SET button.

Press UP or DOWN button until requested
value is displayed. (If pressed
buttons continuously, displayed value is
changed quickly).

Press SET button to save.

5000

2500

Setting of Demand Time (For EPM-R4C

and

R4D)

Press SET button for 3 sec.

Press UP or DOWN button until dE t is
displayed.

Press SET button.

Press UP or DOWN button until requested
value is displayed. (If pressed
buttons continuously, displayed value is
changed quickly).

Press SET button to save.

0015

0020

Setting of High Setpoint Value (For EPM-R4C)

Press SET button for 3 sec.

Press UP or DOWN button until SP H is
displayed.

Press SET button.

Press UP or DOWN button until requested
value is displayed. (If pressed
buttons continuously, displayed value is
changed quickly).

Press SET button to save.

2500

2750

sp h

* Please check the device label for proper value.
*Different supply voltages are adjustable upon request.

A2854 / Rev.2

RAIL MOUNTED AMMETER
EPM-R4D / EPM-R4C

Technical Data

Operating Voltage (Un),*

Operating Range (DU) : Please look at labels on the device.

Operating Frequency (f) : 45-65 Hz

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

Measuring Input (Iin)

: 0.05-5.5 A (for EPM-R4D,EPM-R4C)

Measuring Range :

0.05 -10000 A with Ct (for EPM-R4D, EPM-R4C)

Current Transformer Ratio (Ct) : 5...10000 / 5A

( for EPM-R4D, EPM-R4C)

Power Consumption(P

cons

) : <4 VA

Burden : <1 VA

Output Contact :

5A, 250V, 1250VA (Resistive) (for EPM-R4C)

Ins. Tripping : >1.5 x SP H or <0.5 x SP L

(for EPM-R4C)
Hysteresis : 0-0.5 x Full scale (for EPM-R4C)
Delay Times : 0.0 - 999.9 sec. (for EPM-R4C)
Demand Time (Average) :1-60 min. (for EPM-R4D and R4C )

Equipment Protection : Double Insulation ( ),

Measuring Category III

Ambient Temperature : -5 OC; +50 OC

Degree of Protection : IP 40 (Front Panel), IP 20 (Terminals)

Wire Cros section (for terminals)

: 2.5mm

2

Installations : Rail mounting

Dimensions : Type PK 20

Weight : 0.25 kg

53 mm.

90 mm.

45 mm.

62 mm.

58 mm.

32 mm.

48 mm.

35 mm.

Dimensions

Packaging Information

Pcs per Package : 16 Pcs
Package Weight : 4 kg

Setting the Instant Tripping Function (For EPM-R4C)

Press SET button for 3 sec.

Press UP or DOWN button until trP is
displayed.

Press SET button.

Press UP or DOWN button until
requested value is displayed.

Press SET button to save.

.

o

oF

Setting of Latch Function (For EPM-R4C)

Press SET button for 3 sec.

Press UP or DOWN button until LAtC is
displayed.

Press SET button.

Press UP or DOWN button until requested
value is displayed.

Press SET button to save.

o

oF

Adjustment Contact Situation (For EPM-R4C)

Press SET button for 3 sec.

Press UP or DOWN button until Out is
displayed.

Press SET button.

Press UP or DOWN button until requested
value is displayed.

Press SET button to save.

c

o

Deleting the Demand and Peak Value
(For EPM-R4C and

R

4D)

Press UP and DOWN buttons at the same time

Displayed Peak Value (For EPM-R4C and R4D)

Press and hold the UP button to see
the peak value

Displayed Average Demand (For EPM-R4C and R4D)

Press and hold the DOWNbutton to see
the Average demand.

Escaping the Set Menu (For EPM-R4C and R4D)

If you do not request to change any
adjustment in the menu;

Press UP or DOWN button until ESC is
displayed.

Press SET button.

Warning :

a) A switch or circuit breaker must be connected between the network
and the auxiliary supply input of device.
b) Connected switch or circuit breaker must be in close proximity to the device.
c) Connected switch or circuit breaker must be marked as the disconnecting
device for the equipment.
d) The type of the used fuse must be FF type and the current of the used fuse

must be 1A.
e) No need of a vantilator in the installation area

Connection Diagrams

Measuring Input

~

K L

k l

EPM-R4D

1A

L
N

Operating
Voltage (Un)

Output
Contact

Measuring Input

EPM-R4C

1A

L
N

Operating
Voltage (Un)

Current
Transformer

Iin

Current
Transformer

4 3

1 2 1 2 3 4

6 5

~

K L

k l

Iin

2

Factory Settings :

Ctr = 0005
dE t = 0015
SP H= 4.000
SP L = 0.250

HYS = 0.100
On t = 010.0
OF t = 010.0
Strt = 006.0

AutO= OF
trP = OF
LAtC= OF
Out = nO