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Read this document carefully before using this device. The guarantee will be expired by damaging of the device if you don't attend to the directions in the user manual. Also we don't accept any compensations for personal injury, material damage or capital disadvantages.
ENDA EPA241 PROGRAMMABLE AC/DC AMMETER
Thank you for choosing ENDA EPA241 programmable AC/DC ammeter.
* 35 x 77mm sized.
* 4 digits display.
* Easy to use by front panel keypad.
* Can be used with current transformer or shunt.
* Programmable scale between 5A and 9999A.
* Multifunctional alarm output (NO+NC) for upper and lower limits.
* CE marked according to Europan Norms.
* Measuring type can be selected AC, DC or True RMS
OUT AC DC ACDC
A
ENDA EPA 241
Order Code: EPA241- - - -
1 2 3 4
1 - Input Type
S.........Internal Shunt Resistor
None...External Shunt Resistor
2 - Output
R.........Relay
None...No Relay
3 - Supply Voltage 4 - ModBus
230VAC...230V AC RS...ModBus (optional)
24VAC.....24V AC Ammeter with current transformer used
SM...........9-30V DC / 7-24V AC to provide isolation of the ModBus
communication.
Technical Specifications
ENVIRONMENTAL CONDITIONS
Ambient/stroge temperature
Max. Relative humidity
Rated pollution degree
Height
0 ... +50°C/-25 ... 70°C
80 up to 31 °C decreasing linearly 50% at 40°C.
According to EN 60529 Front panel : IP65 , Rear panel : IP20
Max. 2000m
Do not use the device in locations subject to corrosive and flammable gases.
ELECTRICAL CHARACTERISTICS
Supply
Power consumption
Wiring
Scale
Sensitivity
Accuracy
Input Range
Max. 5VA
1.5mm² screw-terminal connections
AC and RMS
DC
0A...9999A (Specified c.tr.r
parameter. For example:scale is 0A...5A for c.tr.r
=5.00
)
-999A...9999A (Specified c.tr.r
parameter. For example:scale is -5A...5A for c.tr.r
=5.00)
0.002A x c.tr.r
( For example , 0.01A for c.tr.r
=5.00 )
AC
DC
RMS
± 1%
± 1%
± 1%
(full scale) (± 2% For square wave form )
(full scale)
(full scale) (± 2% For square wave form )
EPA241Sxx -5A...5A (Device breaks down at more than 10A peak and more current.)
EPA241xx -60mV...60mV (Device breaks down at more than 50V peak and more voltage.)
Input impedance EPA241Sxx 12mΩ
EPA241xx 40kΩ
DC , 10Hz - 200Hz (For square wave form 10Hz-70Hz) Frequency Range
EMC
Safety requirements
EN 61326-1: 1997, A1: 1998, A2: 2001 (Performance criterion B for the EMC standard)
EN 61010-1: 2001 (Pollution degree 2, overvoltage category II)
OUTPUTS
Alarm output
Life expectancy for relay
Relay: 250V AC, 8A (for resistive load), NO+NC
Mechanical 30.000.000 ; Electrical 100.000 operation.
HOUSING
Housing type
Dimensions
Weight
Suitable for flush-panel mounting.
W77xH35xD71mm
EPA241 Approx. 250g (after packing)
EPA241-24 Approx. 250g (after packing)
Self extinguishing plastics.
Enclosure material
While cleaning the device, solvents (thinner, benzine, acid etc.) or corrosive materials must not be used.
SİSEL MÜHENDİSLİK ELEKTRONİK SAN. VE TİC. A.Ş.
Yukarı Dudullu Barbaros Cad. Kutup Sok. No:20 34775 - ÜMRANİYE/İSTANBUL/TÜRKİYE
Tel : +90 216 499 46 64 Pbx. Fax : +90 216 365 74 01 url : www.enda.com.tr
1/3 EPA241-E-03-R
Dimensions
77mm
OUT AC DC ACDC
ENDA
A
EPA 241
Connection Diagram
Flush mounting clamp
1
Depth
61mm
2
Panel cut-out
71mm
5mm
Panel
Rubber packing
To remove the device from panel:
- While pushing the the flushmounting clamp in direction 1,pull out it in direction 2.
Note :
1) Panel thickness should be maximum
7mm.
2) If there is no 60mm free space at the back side of the device, it would be difficult to remove it from the panel.
NOTE :
SUPPLY:
184-253V AC
50/60Hz 5VA
5
6
Line
Neutral
Fuse
F 100mA
250V AC
Switch
230V AC
Supply
Not: 1) Mains supply cords shall meet the requirements of
IEC 60227 or IEC 60245.
2) In accordance with the safety regulations, the power supply switch shall bring the identification of the relevant instrument and it should be easily accessible by the operator.
Fuse should be connected.
Cable Size: 1,5mm²;
Equipment is protected throughout by DOUBLE INSULATION
Holding screw 0.4-0.5Nm.
UP.l1
+
HYS.U
UP.l1
UP.l1
- HYS.U
LO.l1
+ HYS.L
LO.l1
Out
Out
ENDA EPA241 is intended for installation in control panels. Make sure that the device is used only for intended purpose. The electrical connections must be carried out by a qualified staffand must be according to the relevant locally applicable regulations. During an installation, all of the cables that are connected to the device must be free of electrical power. The device must be protected against inadmissible humidity, vibrations, severe soiling. Make sure that the operation temperature is not exceeded. The cables should not be close to the power cables or components.
A
0
-A
A
0
Input dly.U
T/2 T 3T/2 2T
T/2 T 3T/2 2T dly.U
A
0
ac
A
1
2
0.308 A
0.386 A
ENDA
INDUSTRIAL ELECTRONICS SN: XXXXXXXXX
EPA241-S-230VAC
PROGRAMMABLE
AC/DC AMMETER 8 680407 703920
CAT II
Made in Turkey
230V AC +10% -20%
50/60Hz 5VA
Max. 5A
AC / DC
+
1 2 3 4 5 6 7 8 9 10 11 12
ENDA
INDUSTRIAL ELECTRONICS
SN: XXXXXXXXX
EPA241-S-R-230VAC
PROGRAMMABLE
AC/DC AMMETER
CAT II
8 680407 703944
Made in Turkey
OUTPUT
250V AC 8A
RESISTIVE LOAD
230V AC +10% -20%
50/60Hz 5VA
Max. 5A
AC / DC
+
1 2 3 4 5 6 7 8 9 10 11 12
ENDA
INDUSTRIAL ELECTRONICS SN: XXXXXXXXX
EPA241-S-230VAC-RS
PROGRAMMABLE
AC/DC AMMETER 8 680407 703937
CAT II
Made in Turkey
230V AC +10% -20%
50/60Hz 5VA
Max. 5A
AC / DC
+
1 2 3 4 5 6 7 8 9 10 11 12
ENDA
INDUSTRIAL ELECTRONICS
SN: XXXXXXXXX
EPA241-S-R-230VAC-RS
PROGRAMMABLE
AC/DC AMMETER
CAT II
8 680407 703951
Made in Turkey
OUTPUT
250V AC 8A
RESISTIVE LOAD
230V AC +10% -20%
50/60Hz 5VA
Max. 5A
AC / DC
+
1 2 3 4 5 6 7 8 9 10 11 12
ENDA
INDUSTRIAL ELECTRONICS SN: XXXXXXXXX
EPA241-S-24VAC
PROGRAMMABLE
AC/DC AMMETER 8 680407 703968
CAT II
Made in Turkey
24V AC +10%
50/60Hz 5VA
Max. 5A
AC / DC
+
1 2 3 4 5 6 7 8 9 10 11 12
ENDA
INDUSTRIAL ELECTRONICS SN: XXXXXXXXX
EPA241-S-24VAC-RS
PROGRAMMABLE
AC/DC AMMETER 8 680407 703975
CAT II
Made in Turkey
24V AC +10%
50/60Hz 5VA
Max. 5A
AC / DC
+
1 2 3 4 5 6 7 8 9 10 11 12
A
0
A
0
-A
A
0 d
T/2 T 3T/2
T/2 T
T/2 T 3T/2 2T
T d
3T/2 2T
2T
A
A
1
2
A d
T d 2
T 2 dly.l
dc
0.000
A
2
p
A
1
p
0.000
A 1
2
A d
T dly.l
Ac.dc
(rms)
A
1
2
A 1
2
A
1
2
A
A 1
2
A d
T t t t
A
0
-A
T/2 T 3T/2 2T
A 1
3
0.000
A 1
3
2/3 EPA241-E-03-R
OUT AC DC
Measured Value
SET
&
If both keys are pressed, upper limit value can be adjusted.
A
A
SET
SET
EPA241 PROGRAMMING DIAGRAM
Increment key
Decrement key
.
Used for increasing the setpoint value and changing parameters.
When held down for a few seconds, configured numeric value increases faster.
Used for decreasing the setpoint value and changing parameter.
When held down for a few seconds, configured numeric value decreases faster.
SET
Programming key
SET
If this key is pressed, upper limit value appears.
Used for displaying and configuring the selected parameter value.
ADJUSTING THE ALARM VALUE
By using and keys, upper limit value can be adjusted between lower scale and upper scale that is specified with c.t.r.r parameter.This parameter can’t be lower than ( lo.l1 + HYS.l + HYS.U
) value.
&
SET
SET
&
If both keys are pressed, lower limit value can be adjusted.
If this key is pressed, lower limit value appears.
By using and keys, lower limit value can be adjusted between lower scale and upper scale that specified with c.t.r.r parameter.This parameter can’t be higher than (
UP.l1 - HYS.U - HYS.L
) value.
value mode.
PROGRAMMING MODE
SET
If this key is pressed, upper limit value appears.
Upper limit value
SET
Hysteresis value for upper limit
By using and keys, upper limit value can be adjusted between minimum and maximum
scale that is specified with c.t.r.r parameter.This parameter can’t be lower than ( lo.l1 + HYS.l + HYS.U
SET
If key is pressed, it returns to parameter name.
) value.
By using and keys, hysteresis value for upper limit can be adjusted between 0 and
If this key is pressed, hysteresis value for upper limit appears.
Delay time for upper limit alarm
SET
If this key is pressed, delay time for upper limit appears
SET
Lower limit value c.tr.r
/20.This parameter can’t be higher than (
SET
If key is pressed, it returns to parameter name.
- -
) value.
By using and keys, delay time for higher limit alarm can be adjusted between 0 and
SET
900 seconds.
If key is pressed, it returns to parameter name.
By using and keys, lower limit value can be adjusted between lower scale and upper
If this key is pressed, lower limit value appears.
SET
scale that specified with c.t.r.r parameter.This parameter can’t be higher than (
UP.l1 - HYS.U - HYS.L
) value.
SET
If key is pressed, it returns to parameter name.
Hysteresis value for lower limit
By using and keys, hysteresis value for upper limit can be adjusted between 0 and
If this key is pressed, hysteresis value
for lower limit appears.
SET
Delay time for lower limit alarm c.tr.r
/20.This parameter can’t be higher than ( Up.l1
-
SET
If key is pressed, it returns to parameter name.
) value.
By using and keys, delay time for lower limit alarm can be adjusted between 0 and
*
*
*
*
Optn
If this key is pressed, delay time appears
for lower limit appears.
SET
Alarm
output position
900 seconds.
SET
If key is pressed, it returns to parameter name.
By using and keys, alarm output state can be adjusted to n.o.
or
N.c.
If it is adjusted to no
output relay is powered at alarm condition.
SET
If this key is pressed, alarm output state
appears.
If key is pressed, it returns to parameter name.
SET
Current transforming rate
By using and keys, current transforming rate can be adjusted between 5.00(/5) and
If this key is pressed, current transforming rate appears.
Measuring
type
SET
If this key is pressed, measuring type
appears.
ACdC
Decimal point
position
SET
9999
(/5).
If this parameter changes, upper limit value is set to maximum scale ,minimum limit value is set to minimum scale and
hysteresis
SET
values are set to 0.
If key is pressed, it returns to parameter name.
By using and keys, measuring type can be adjusted to ac
, dc
or acdc.Three leds at the top of the display show measuring type.
SET
If key is pressed,it returns to parameter name.
By using and keys decimal point state can be adjusted according to value of the c.t.r.r parameter. If c.t.r.r parameter is lower than 10, measured value can be shown (0.00) or (0.0), If it is between 10 and 100
If this key is pressed, decimal point
position appears.
Sampling time measurement value
SET
measured value can be shown (0.0) or (0)If it is higher than 100, measured value can be shown (0).
SET
If key is pressed, it returns to parameter name.
If this key is pressed, sampling time measurement
value appears
4
Sampling time of the measurement value is shown on the screen. If the 1 selected;sampling time of the measurement is 250ms,
If 2 is selected,it is 500ms.If 3 is selected, it is 750ms.If 1 is selected,it is 1 second.
SET
If key is pressed, it returns to parameter name.
SET **
Adrs
If this key is pressed,
address of the device appears.
1
By using and keys, address of the device can be adjusted between 1-247.
SET
If key is pressed, it returns to parameter name.
3/3 EPA241-E-03-R
** baud
SET
1200
When this key is pressed
baudrate is seen.
By using and keys, baudrate value of the device can be adjusted to OFF,1200,2400,4800,9600,19200.
SET
If key is pressed,it returns to parameter name.
(*)
There are only ct.r.r.,tYPE,d.pnt and optn parameters in the devices those have no relay.
(**)
The AdrS and baud parameters are only in the devices those have modbus.
If any key is pressed in 25 seconds or the device is powered down and powered upş,then it returns to operation mode.
NOTE: If key is held down while the device is powered up, the d.PAr message will appear and the factory settings will be restored.
ERROR MESSAGES
Means, measured current value is higher than maximum scale.
Means, measured current value is lower than minimum scale.
ENDA EPA241 DİJİTAL AMPERMETER MODBUS PROTOCOL ADDRESS MAP
1.1 HOLDING REGISTERS
Holding Register
Addresses Data
Type
Data Content
Decimal Hex
Parameter
Name
Read/Write
Permission
0000d
0001d
0002d
0003d
0004d
0005d
0006d
0007d
0008d
0009d
0010d
0x0000
0x0001
0x0002
0x0003
0x0004
0x0005
0x0006
0x0007
0x0008
0x0009
0x000A word word word word word word word word word word word
The upper limit of the setpoint
The upper limit of the hysteresis value
Delay time for the upper limit alarm
The lower limit of the setpoint
The lower limit of the hysteresis value
Delay time for the lower limit alarm
Current replacement rate
Measurement method (0=AC ,1=DC,2=ACDC)
Decimal point. (0=X.XX,1=X.X,2=X)
Sampling time of the measurement value.If 1 is selected,it is
250ms.If 2 is selected,it is 500ms.If 3 is selected,it is 750ms.
If 4 is selected,it is 1 second.
Device address for RS485 network connection.
Adjustable between 1-247.
uPL1
HYSU dlyU
LoL1
HYSL dLyl ctrr type dpnt
OPTN aDRS
Readable/Writable
Readable/Writable
Readable/Writable
Readable/Writable
Readable/Writable
Readable/Writable
Readable/Writable
Readable/Writable
Readable/Writable
Readable/Writable
Readable/Writable
0011d 0x000B word Baudrate (0=Off;1=1200;2=2400; 3=4800; 4=9600; 5=19200)
*Holding Register Parameter Table (No Relay Models)
BAUD Readable/Writable
0000d
0001d
0002d
0x0000
0x0001
0x0002 word word word
Current replacement rate
Measurement method (0=AC ,1=DC,2=ACDC)
Decimal point. (0=X.XX,1=X.X,2=X) ctrr type dpnt
Readable/Writable
Readable/Writable
Readable/Writable
0003d 0x0003 word
Sampling time of the measurement value OPTN
0004d 0x0004 word Device address for RS485 network connection.
Adjustable between 1-247.
aDRS
0005d 0x0005 word Baudrate (0=Off;1=1200;2=2400; 3=4800; 4=9600; 5=19200)
1.2 INPUT REGISTERS
Input Register
Addresses
Data
Type
Decimal Hex
0000d 0x0000 word
1.3 DISCRETE INPUTS
Discrete Input
Addresses
Decimal Hex
Data
Type
00d 0x00
1.4 COILS
Bit
Data Content
Measured current value
Data Content
Relay output state (0=OFF; 1=ON)
BAUD
Parameter
Name
--
Parameter
Name
--
Readable/Writable
Readable/Writable
Readable/Writable
Only Readable
Status
Value
5 aCdC
X.XX
4
1
9600
Read/Write Permission
Only Readable
4
1
oFF
Read/Write Permission
5.0
0.10
0
0
0.10
0
5 aCdC
X.XX
Coil Addresses
Hex
0x00
Data
Type
Data Content
Parameter
Name
Read/Write
Permission
Decimal
00d Bit Alarm output state (0=no; 1=nc) Aout Readable/Writable
*Coil and Discrete input parameters are not available in the devices those have no relay
Status
Value
4/4 EPA241-E-03-R
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