Precautions for Installation and Safe Usage.........................................................................1
Front Panel and Usage of Buttons.............................................................................1
General Information and Applications.............................................................................1
Using the Buttons............................................................................................2
Transformer Menu (Ctr / trn / Utr / ConnECtýon) ........................................................................2
User Password Settings (Pin Menu).......................................................................2
Activating the User Password (Pin Act Menu)......................................................2
Changing the User Password (Pin CHg Menu).........................................................2
Outpu t Setti ng Menu ...... ... ... ... ....... ... ... ....... ... ... ....... ... ... ... ....... ... ... ....... .3
Current Setting Menu (SP Current Menu) ................................................................3
High/Low Current Settings (SP Cur Hý, SP Cur Lo Menu)..........................................3
Hysteresis Settings for High/Low Currents (I-H Hys, I-L Hys Menu).................3
Delay-on Time for High/Low Currents (I-H ond, I-L ond Menu)..............................3
Delay-off Time for High/Low Currents (I-H ofd, I-L ofd Menu).......................................3
Start and Auto Function (StArt dEL and Auto rSt Menu).........................................4
Instant Trip Function (CUr ýnS trP Menu).................................................................4
Voltage Setpoint Menu (SP Volt Menu) ..................................................................4
High/Low Voltage Settings (SP UoL Hý, SP UoL Lo Menu)..................................4
Hysteresis Settings for High/Low Voltages (U-H Hys, U-L Hys Menu)............5
Dela y-on Ti me fo r High/ Low Voltag es (U-H ond, U-L on d Menu) ........ ..... 5
Del ay -o ff Time for High/Low Voltages (U -H of d, U-L ofd Menu)................5
Frequency Menu .........................................................................................................6
High/Low Frequency Settings (Frq Hý, Frq Lo Menu).............................................6
Hysteresis Settings for High/Low Frequencies (F-H HyS, F-L HyS) ..............................6
Delay-on / Delay-off Time for High/Low Frequencies (Frq ond, Frq oFd)....6
Phase Sequence (Voltage Sequence Menu) and Instant Trip (UoL ýnS trP Menu) Menu ........6
Erasing the Max., Min. and Max. Demand Values (Reset Menu)........................6
Demand Time for Demand and Max. Demand (dE tý Menu)....................................................7
Communication Menu (RS-485) .........................................................................7
Technical Features and Default Factory Settings ................................................................7
Connection Diagram ................................................................................................8
Output, SP Current and SP Volt menus are available for EPM-04C/04CS; RS-485 menu
is available for EPM-04CS.
EPM-04/04C/04CS is designed for measuring Phase current, frequency, neutral
curren t and vol tages (P hase-Ph a se and P hase-Ne u tral) i n a
which named as Out1 and Out2. (NO-Normally
Open) Please refer to Output menu for the functions of the relays.
Available only for EPM-04C/04CS
Available only for EPM-04CS
Phase LEDs:The LEDs turn on when the voltage value, which is applied
to one of the current inputs, reach 30 V
2 ....... First displays k LED (for L1). Measurement parameter is the unit of kilo
when LED is turned on. ie: kA, kV
4 ....... Second displays k LED (for L2). Measurement parameter is the unit of kilo
when LED is turned on. ie: kA, kV
6 ....... Third displays k LED (for L3). Measurement parameter is the unit of kilo
when LED is turned on. ie: kA, kV
8 ....... Displays network frequency when Hz LED is turned on.
9 ....... LED for neutral current. Measurement parameter is displayed in unit of k
kilo when this LED is turned on.
10 ....... Display for neutral current and frequency (for EPM-04C/04CS).
11 ....... First warning output LED (Out1). Turned on when the output is activated.
12 ....... Second warning output LED (Out2). Turned on when the output is activated.
13 ....... Over current / voltage warning output for L1. (EPM-04C/04CS)
14 ....... Low current / voltage warning output for L1. (EPM-04C/04CS)
15 ....... Over current / voltage warning output for L2. (EPM-04C/04CS)
16 ....... Low current / voltage warning output for L2. (EPM-04C/04CS)
17 ....... Over current / voltage warning output for L3. (EPM-04C/04CS)
18 ....... Low current / voltage warning output for L3. (EPM-04C/04CS)
19 ....... Over current / frequency warning output for frequency and neutral current
20 ....... Low current / frequency warning output for frequency and neutral current
21 ....... Monitoring the L1, L2, L3 voltages values when V LED is turned on and
displays the frequency in 4th display.
22 ....... Monitoring the L1, L2, L3 currents values when A LED is turned on and
displays the neutral current in 4th display.
23 ....... Indicates the activating delta connection when
current protection is disactivated even if is activated.
24 ....... LED for max. instant current and voltage. Max. instant currents and H
voltages are displayed when this LED is turned on.
25 ....... LED for min. instant current and voltage. Min. instant currents and L
voltages are displayed when this LED is turned on.
26 ....... LED for max. demand. Max. demand values are displayed when this M
27 ....... SET button. It is used to enter into the menu and to save the values.
If SET button is pressed for 3 sec. in the measurement mode, you can
enter into menus. This button is used for monitoring the max. (H), Min.
(L) current values and max. demand values in measurement mode.
28 ....... Downward selection button.
29 ....... Upward selection button.
ESC button. Escaping from the menu. And also used for switching off the
Latch function while this function has activated.
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
- Do not try to clean the device with solvent or the like.Only clean with dry
- Verify correct terminal connections when wiring.
- Electrical equipment should be serviced only by your component seller.
- Only for rack panel mounting.
- Fuse must be F type and limit value doesnt exceed 1A.
- No responsibility is assured by manufacturer or any of its subsidiaries
for any consequences arising out of the use of this material.
Choose according to
contactor current
Current Measurement Inputs
Choose according to
contactor current
Voltage Measurement Inputs
In CT-25 (120A) compliant models, only CT-25 current transformer
Other type of CTs have a high risk to damage to device.
PRECAUTIONS FOR INSTALLATION AND SAFE USE
Summary of the Contact Operations
k: When CT-25 is used, Red cable is connected to k terminal.
l: When CT-25 is used, Black cable is connected to l terminal.
