Operating Manual Rish Master 3428 Rev B

Operating Manual Rish Master 3428 Rev B
The following sections comprise step by step procedures for configuring the
Instrument for individual user requirements.
RISH Master 3428
V
VRY
x1000
IN
KVArh
Ph R
KVAr
Sys
3 Phase (3Wire / 4Wire)
Three Phase Multi-function Digital Meter
Installation & Operating Instructions
Section
Contents
1.
Introduction
2.
Measurement Reading Screens
3.
Programming
3.1 Password Protection
3.2 Set Up Screens
3.2.1 System Type
3.2.2 Potential Transformer Primary value
3.2.3 Current Transformer Primary value
3.2.4 Current Transformer Secondary value
3.2.5 Energy Display on modbus
3.2.6 Reset
3.2.7 RS 485 Device Address
3.2.8 Auto Scrolling
3.2.9 Low Current noise cutoff
3.2.10 RS 485 Baud Rate
3.2.11 RS 485 Parity selection
3.2.12 Energy Digit Rollover(reset) count
TABLE 1:
ModBus ( RS 485 ) option
5.
Phaser Diagram
6.
Installation
6.1 EMC Installation Requirements
6.2 Case Dimensions and Panel Cut-out
6.3 Wiring
6.4 Auxiliary Supply
6.5 Fusing
6.6 Earth / Ground Connections
7.
8.
Connection Diagrams
System Voltage
System Current
Frequency
Voltage VL1-N(4wire only)
Voltage VL2-N(4wire only)
Voltage VL3-N(4wire only)
Voltage VL1-L2
Voltage VL2-L3
Voltage VL3-L1
Current L1
Current L2
Current L3
Active Power (System / Phase (4 wire only) )
Reactive Power (System / Phase (4 wire only))
Apparent Power (System / Phase (4 wire only))
Power Factor (System / Phase (4 wire only))
Active Energy (8 Digit resolution)
Reactive Energy (8 Digit resolution)
Apparent Energy (8 Digit resolution)
Neutral Current ( 4 wire only )
Volts
Amps
Hz
Volts
Volts
Volts
Volts
Volts
Volts
Amps
Amps
Amps
Kwatts
KVAr
KVA
9.
Connection for Optional RS 485 (Modbus)
KVAh
Ph Y
x1000
P.F.
KW
VBR
Max
KWh
V
VRY
x1000
IN
KVArh
Ph R
KVAr
Sys
x1000
Hz
A
VYB
KVA
Min
KVAh
Ph Y
x1000
P.F.
KW
VBR
Max
To access the set-up screens press and hold the “
Down” and “ Up”
Key simultaneously for 5 seconds. This will take the User into the Password
Protection Entry Stage (Section 3.1).
3.1. Password Protection
Password protection can be enabled to prevent unauthorised access to set-up
screens, by default password protection is not enabled.
KWh
Ph B
Ph B
Password protection is enabled by selecting a four digit number other than 0000,
setting a password of 0000 disables the password protection.
V
VRY
Screen 10 : Min Sys Voltage & Current
Screen 9 : Apparent Energy
V
VRY
x1000
IN
KVArh
Ph R
x1000
Hz
A
VYB
KVA
Min
kWh
kVArh
kVAh
Amp
KVAh
x1000
P.F.
KW
KWh
Ph B
x1000
Hz
KVAh
Ph Y
x1000
P.F.
KW
VBR
Max
KWh
Ph B
V
VRY
Ph B
x1000
IN
KVArh
Ph R
KVAr
Sys
x1000
Hz
A
KVAh
Ph Y
KW
VBR
Max
2. Measurement Reading Screens
Screen 11 : Max Sys Voltage
& Current
V
VRY
x1000
IN
KVArh
Ph R
KVAr
Sys
x1000
Hz
A
Screen 1 : System screen
(System Voltage, System Current,
System Active Power)
Screen 2 : Line to Neutral Voltages
(for 4 wire only)
VYB
KVA
Min
KVAh
Ph Y
VBR
x1000
P.F.
Max
KWh
KW
V
VRY
KVAr
Sys
A
VYB
KVA
Min
KVAr
Sys
A
VYB
KVA
Min
KW
VBR
Max
15000501_Rev. B 08/12
V
VRY
KVAr
Sys
A
x1000
Hz
VYB
KVA
Min
KVAh
Ph Y
KW
x1000
P.F.
VBR
Max
KWh
x1000
Hz
V
VRY
x1000
IN
KVArh
Ph R
KVAr
Sys
Ph Y
A
VBR
x1000
P.F.
VYB
KVA
Min
Max
KWh
KW
Ph B
x1000
Hz
KVAh
Ph Y
KW
VBR
Max
This instrument is a panel mounted 96 x 96mm DIN Quadratic Digital
metering system for the measurement important electrical parameters like
AC Voltage, AC Current, Frequency, Power, Energy(Active / Reactive / Apparent) .
The instrument integrates accurate measurement technology (All Voltages &
Current measurements are True RMS upto 15th Harmonic) with 3 line 4 digits
Ultra high brightness LED display.
V
VRY
KVAr
Sys
A
VYB
KVA
Min
x1000
IN
KVArh
Ph R
x1000
Hz
A
VYB
KVA
Min
KW
VBR
Max
KVAr
Sys
Ph R
A
x1000
Hz
VYB
KVA
Min
KVAh
Ph Y
KW
x1000
P.F.
VBR
Max
KWh
KWh
Screen 13 : Phase Power (Y)
Reactive/ Apparent /Active
( for 4W only )
KVAr
Sys
x1000
IN
KVArh
Ph R
x1000
Hz
VYB
KVA
Min
KW
VBR
Max
Ph Y
VBR
Max
KWh
Ph B
Up
x1000
Hz
KVAh
Ph Y
x1000
P.F.
KWh
Ph B
KVAh
Screen 14 : Phase Power (B)
Reactive/ Apparent /Active
( for 4W only )
V
VRY
KVAr
Sys
V
VRY
KVAr
Sys
A
VYB
KVA
Min
KW
VBR
Angle
Max
KVAh
Ph Y
KW
x1000
IN
KVArh
Ph R
VBR
Max
x1000
P.F.
KWh
Ph B
Up” key to advance to next digit.
Enter Password, third digit entered, prompt for fourth
digit.
(* Denotes that decimal point will be flashing).
Use the “ Down” key to scroll the value of the fourth
digit from 0 through to 9, the value will wrap from 9
round to 0.
Press the “ Up” key to advance to verification of the
password.
x1000
Hz
KVAh
Ph Y
x1000
P.F.
KWh
Ph B
V
VRY
A
VYB
KVA
Min
KWh
x1000
IN
KVArh
Ph R
x1000
Hz
A
KVAr
Sys
Ph Y
x1000
P.F.
KW
VBR
Max
x1000
IN
KVArh
Ph R
Enter Password, fourth digit entered, awaiting
verification of the password.
x1000
Hz
KVAh
Ph Y
x1000
P.F.
KWh
Ph B
The front panel has two push buttons through
which the user may scroll through the
available measurement readings, reset the
energy , Min/Max (System Voltage
and System Current) and configure the product.
Screen 15 : Phase Power Factor
(Phase R / Y / B) ( for 4W only )
Screen 5 : Neutral current ( for 4W only ) ,
Frequency, Sys. Power Factor
Screen 6 : System Power ( Reactive,
Apparent, Active)
V
VRY
KVAr
Sys
Down
x1000
IN
KVArh
Ph R
Ph B
Ph B
Press the “
Ph Y
KVAh
x1000
P.F.
KW
The instrument can be configured and
programmed at site for the following : PT
Primary, CT Primary, CT Secondary (5A or
1A) and 3 phase 3W or 4W system.
KVAr
Sys
V
VRY
Use the “ Down” key to scroll the value of the third
digit from 0 through to 9, the value will wrap from 9
round to 0.
KWh
x1000
P.F.
Screen 4 : Line Currents
x1000
IN
KVArh
x1000
P.F.
Enter Password, second digit entered, prompt for third
digit.
(* Denotes that decimal point will be flashing).
KVAh
A
V
VRY
Up” key to advance to next digit.
x1000
Hz
V
VRY
Screen 3 : Line to Line Voltages
Press the “
Ph B
VYB
KVA
Min
1. Introduction
Use the “ Down” key to scroll the value of the second
digit from 0 through to 9, the value will wrap from 9
round to 0.
KWh
KVAh
x1000
IN
KVArh
Ph R
Ph B
Ph B
x1000
IN
KVArh
Ph R
x1000
P.F.
Enter Password, first digit entered, prompt for second
digit.
(* Denotes that decimal point will be flashing).
Ph B
Screen 12 : Phase Power (R)
Reactive/ Apparent /Active
( for 4W only )
Ph B
x1000
IN
KVArh
Ph R
Up” key to advance to next digit.
In the special case where the Password is “0000” pressing
the “ Up” key when prompted for the first digit will
advance to the “Password Confirmed” screen.
KWh
Ph R
A
Ph Y
Press the “
Ph Y
x1000
P.F.
VBR
Max
x1000
IN
KVArh
VYB
KVA
Min
KVAh
VBR
Max
V
VRY
KVAr
Sys
Press the “ Down” key to scroll the value of the first digit
from 0 through to 9, the value will wrap from 9 round to 0.
x1000
Hz
A
VYB
KVA
Min
KW
KVAr
Sys
Enter Password, prompt for first digit.
(* Denotes that decimal point will be flashing).
x1000
IN
KVArh
Ph R
KVAr
Sys
VYB
KVA
Min
V
VRY
Specification
x1000
Hz
A
VYB
KVA
Min
Units of measurement
Measured Parameters
In normal operation the user is presented with one of the measurement reading
screens out of several screens. These screens may be scrolled through one at a
time in incremental order by pressing the “ Up key” and in decremental order
by pressing “ Down key”.
4.
3. Programming
Screen 8 : Reactive Energy
Screen 7 : Active Energy
V
VRY
KVAr
Sys
A
VYB
KVA
Min
x1000
IN
KVArh
Ph R
x1000
Hz
KVAh
Ph Y
V
VRY
KVAr
Sys
A
VYB
KVA
Min
x1000
IN
KVArh
Ph R
x1000
Hz
KVAh
Ph Y
A
VYB
KVA
Min
KW
VBR
Max
x1000
IN
KVArh
Ph R
x1000
Hz
KVAh
Ph Y
x1000
P.F.
KWh
Ph B
KW
VBR
Max
x1000
P.F.
KWh
Ph B
KW
VBR
Max
x1000
P.F.
KWh
Ph B
V
VRY
KVAr
Sys
A
VYB
KVA
Min
KW
VBR
Max
x1000
IN
KVArh
Ph R
x1000
Hz
KVAh
Ph Y
x1000
P.F.
KWh
Ph B
Password confirmed.
Pressing “ Down” key will advance to the “New /
change Password” entry stage.
Pressing the “ Up” key will advance to the Set up
screen. (See section 3.2).
V
VRY
Password Incorrect.
The unit has not accepted the
Password entered.
Pressing the " Down" key will return to
the Enter Password stage.
x1000
IN
KVArh
Ph R
KVAr
Sys
x1000
Hz
A
VYB
KVA
Min
KVAh
Ph Y
Pressing the “ Up” key exits the
Password menu and returns operation
to the measurement reading mode.
x1000
P.F.
KW
VBR
Max
KWh
Ph B
3.2 Set Up Screens
3.2.3. Current Transformer Primary Value
3.2.1. System Type
The nominal Full Scale Current that will be displayed as the Line currents. This screen enables the
user to display the Line currents inclusive of any transformer ratios, the values displayed represent
the Current in Amps.
V
VRY
KVAr
Sys
A
VYB
KVA
Min
KW
VBR
Max
x1000
IN
KVArh
Ph R
x1000
Hz
KVAh
This screen is used to set the system type .
System type ”3” for 3 phase 3 wire & “4” for 3 phase
4 wire system.
Pressing the “ Up” key accepts the present value and advances to the Current Transformer
Secondary Value (See section 3.2.4)
Pressing the “ Up” key accepts the present value and advances
to the “Potential transformer primary value Edit” menu (see section 3.2.2)
Pressing the “
Down” key will enter the “Current
Transformer Primary Value Edit” mode. This will scroll the
value of the most significant digit from 0 through to 9,
unless the presently displayed Current Transformer
Primary Value together with the Potential Transformer
Primary Value results in a maximum power of greater
than 1000 MVA in which case the digit range will be
restricted, the value will wrap. Example: If primary value
of PT is set as 400kV (max value) then primary value of
Current is restricted to 1736A.
Ph Y
x1000
P.F.
KWh
Pressing the “ Down” key will enter the system type edit mode
and scroll the values through values available .
V
VRY
x1000
IN
KVArh
Ph R
KVAr
Sys
Ph B
Pressing the “
V
VRY
New / Change Password
(*Decimal point indicates that this will be flashing).
Pressing the “ Down” key will scroll the value of the
first digit from 0 through to 9, the value will wrap from 9
round to 0.
x1000
IN
KVArh
Ph R
KVAr
Sys
x1000
Hz
A
VYB
KVA
Min
KVAh
Pressing the “ Up” key to advance the operation to
the next digit and sets the first digit, in this case to “2”
Ph Y
x1000
P.F.
KW
VBR
Max
x1000
Hz
A
VYB
KVA
Min
KVAh
Ph Y
x1000
P.F.
KW
System Type Confirmation
VBR
Max
KWh
Ph B
V
VRY
KVAr
Sys
A
VYB
KVA
Min
KWh
Up” key advances to the system type confirmation menu.
x1000
IN
KVArh
Ph R
x1000
Hz
KVAh
Ph Y
Ph B
KW
VBR
Max
x1000
P.F.
This screen will only appear following the edit of
system type. If system type is to be Downed again,
pressing the “ Down” key will return to the system type
edit stage by blanking the bottom line of the display
pressing the “
Up” key sets the displayed value and
will advance to “Potential Transformer Primary Value
Edit” menu. (See section 3.2.2)
KWh
Pressing the “ Up” key will advance to the next less
significant digit. (* Denotes that decimal point will be
flashing).
The “Maximum Power” restriction of 1000 MVA refers to 120% of nominal current and 120% of
nominal voltage, i.e, 694.4 MVA nominal power per phase.
When the least significant digit had been set, pressing the “
“Current Transformer Primary Value Confirmation” stage.
Up” key will advance to the
Ph B
The minimum value allowed is 1, the value will be forced to 1 if the display contains zero when the
“ Up” key is pressed.
V
VRY
New / Change Password, first digit entered, prompting for
second digit. (*Decimal point indicates that this will be
flashing).
x1000
IN
KVArh
Ph R
KVAr
Sys
Pressing the “ Down” key will scroll the value of the
second digit from 0 through to 9, the value will wrap from
9 round to 0.
x1000
Hz
A
VYB
KVA
Min
KVAh
Ph Y
Pressing the “ Up” key to advance the operation to the
next digit and sets the second digit, in this case to “1”
x1000
P.F.
KW
VBR
Max
KWh
Ph B
3.2.2. Potential Transformer Primary Value
The nominal full scale voltage which will be displayed as the L1-N, L2-N and L3-N for a four wire (Ln)
system or as L1-2, L2-3 and L3-1 in a three wire(LL) system. This screen enables the user to display
the line to neutral and line to line voltages inclusive of any transformer ratios, the values displayed
represent the voltage in kilovolts (note the x1000 enunciator).
V
VRY
KVAr
Sys
A
VYB
KVA
Min
KW
VBR
Max
x1000
IN
KVArh
Ph R
x1000
Hz
Ph Y
KVAr
Sys
x1000
IN
KVArh
Ph R
x1000
Hz
A
VYB
KVA
Min
KVAh
Ph Y
KW
VBR
Max
x1000
P.F.
KWh
Ph B
KWh
New / Change Password, second digit entered,
prompting for third digit. (*decimal point indicates that
this will be flashing).
Pressing the “ Up” key accepts the present
multiplier (decimal point position) and advances to the
“Potential Transformer Digit Edit” mode.
Pressing the “ Down” key will scroll the value of the
third digit from 0 through to 9, the value will wrap from 9
round to 0.
Pressing the “ Up” key to advance the operation to
the next digit and sets the third digit, in this case to “5”
Potential Transformer Digit Edit
V
VRY
KVAr
Sys
VYB
KVA
Min
KW
V
VRY
KVAr
Sys
A
VYB
KVA
Min
KW
VBR
Max
x1000
IN
KVArh
Ph R
x1000
Hz
KVAh
Ph Y
x1000
P.F.
KWh
Ph B
Pressing the “ Down” key will scroll the value of the
fourth digit from 0 through to 9, the value will wrap from
9 round to 0.
Pressing the “ Up” key to advance the operation to
the “New Password Confirmed” and sets the fourth digit,
in this case to “3”.
x1000
IN
KVArh
Ph R
VBR
Max
x1000
IN
KVArh
Ph R
x1000
Hz
KVAh
Ph Y
x1000
P.F.
KWh
Ph B
Pressing the “ Up” key accepts the present value
at the cursor position and advances the cursor to the
next less significant digit.
KVAh
Ph Y
KW
VBR
Max
KWh
Ph B
When the least significant digit has been set pressing the “
“Potential Transformer Primary Value Confirmation” stage.
3.2.4. Current Transformer Secondary Value
V
VRY
x1000
IN
KVArh
Ph R
KVAr
Sys
x1000
Hz
VYB
KVA
Min
This screen is used to set the secondary value for
Current Transformer. Secondary value “5” for 5A or
“1” for 1A can be selected. Pressing “ Up” key
accepts the present value and advances to the
Energy Display on Modbus Menu (See section 3.2.5).
V
VRY
A
VYB
KVA
Min
KW
VBR
Max
x1000
IN
KVArh
Ph R
x1000
Hz
KVAh
Ph Y
x1000
P.F.
KWh
V
VRY
Pressing the “ Down” key will return to the
“New/Change Password”.
KVAr
Sys
Pressing the “ Up” key will advances to the Set up
screen.(see section 3.2).
VYB
KVA
Min
A
KW
VBR
Max
Ph B
x1000
IN
KVArh
Ph R
x1000
Hz
KVAh
Ph Y
x1000
P.F.
KWh
Ph B
Note : 0.120 kV i.e. 120 V L-N for 4W
120 V L-L fpr 3W
This screen will only appear following an edit of the
Potential Transformer Primary Value.
If the scaling is not correct, pressing the “
Down”
key will return to the “Potential Transformer Primary
Value Edit” stage with the digits flashing indicating
that the multiplier (decimal point position) should be
selected.
Pressing the “ Up” key sets the displayed value
and will advance to the Current Transformer Primary
Value (See section 3.2.3.)
Pressing “ Up” key sets the displayed value and
will advance to the Reset menu (See section 3.2.6).
KWh
Ph B
Note : Default value is set to ‘1’ i.e. Energy on Modbus will be in
terms of Wh/VArh/VAh/Ah resp.
3.2.6. Reset
The following screens allow the users to reset the all Energy , Lo(Min), hi(Max) .
Reset (None)
V
VRY
x1000
IN
KVArh
Ph R
KVAr
Sys
Pressing “ Up” key advances to Modbus address set menu.
(see section 3.2.7).
x1000
Hz
A
VYB
KVA
Min
Pressing the “ Down” key will enter the “Reset
option” mode and scroll the value”
through the option and wrapping back to None.
KVAh
Ph Y
x1000
P.F.
KW
VBR
Max
KWh
Ph B
Pressing “ Up” key will not reset and will advance
to Modbus address set menu.(See sec.3.2.7)
x1000
IN
KVArh
Ph R
KVAr
Sys
x1000
Hz
A
VYB
KVA
Min
Reset option select, (Reset Energy)
The user has scrolled through to the “E” Energy
value.
KVAh
Ph Y
KW
x1000
P.F.
Pressing “ Up” key will select the value and
advance to the “Reset Energy Confirmation” Mode.
KWh
Ph B
V
VRY
x1000
IN
KVArh
Ph R
x1000
Hz
A
VYB
KVA
Min
Reset Energy Confirmation.
Pressing the “
option” mode.
Down” key will re-enter the “Reset
KVAh
Ph Y
KW
VBR
Max
x1000
P.F.
KWh
Ph B
Pressing “ Up” key resets the all Energy parameters
and advances to the Modbus address set
(see section 3.2.7.)
KVAh
Ph Y
x1000
P.F.
VBR
Max
KWh
Pressing the “
Down” key will enter the CT
Secondary value edit mode and scroll the value
through the values available.
Ph B
Pressing the “ Up” key will advance to the CT
Secondary value confirmation.
V
VRY
KVAr
Sys
A
CT Secondary value confirmation
V
VRY
KVAr
Sys
x1000
IN
KVArh
Ph R
x1000
Hz
A
KVAh
Ph Y
KW
VBR
Max
x1000
P.F.
This screen will only appears following an edit of CT
secondary value .
VYB
KVA
Min
KW
VBR
Max
x1000
IN
KVArh
Ph R
x1000
Hz
Ph Y
x1000
P.F.
KWh
Pressing “ Up” key sets the displayed value and
will advance to Energy Display on Modbus menu.
(See section 3.2.5)
V
VRY
KVAr
Sys
A
KW
VBR
Max
x1000
IN
KVArh
Ph R
x1000
Hz
KVAh
x1000
P.F.
KWh
This screen enable user to set energy in terms of Wh / KWh / MWh on RS 485 Output depending as per the
requirement .Same applicable for all types of energy.
A
KW
VBR
Max
x1000
IN
KVArh
Ph R
x1000
Hz
KVAh
Ph Y
x1000
P.F.
KWh
Ph B
Reset Lo Confirmation
Pressing the “ Down” key will re-enter the
“Reset option Select mode.
Ph Y
Ph B
VYB
KVA
Min
Pressing “ Up” key will select the value and
advance to the “Reset Lo Confirmation” Mode.
Ph B
VYB
KVA
Min
KVAr
Sys
The user has scrolled through to the “Lo” (Min)
KVAh
KWh
Ph B
V
VRY
Reset option select, (Reset Lo)
If secondary value shown is not correct, pressing the
Down key will return to CT secondary edit stage by
blanking the bottom line of the display.
3.2.5. Energy Display on modbus
KVAr
Sys
x1000
P.F.
KW
VBR
Max
KVAr
Sys
Up” key will advance to the
Potential Transformer Primary Value Confirmation
Ph Y
Pressing the “ Up” key sets the displayed value and
will advance to the “Current Transformer Secondary Value
Edit” menu. (See section 3.2.4).
Screen showing display of 0.120 kV i.e. 120 Volts indicating steady decimal point and cursor
flashing at the “hundreds of volts” position.
New Password confirmed.
Pressing the “ Down” key will enter the “Energy Display
On Modbus Edit” stage by blanking the bottom line of the
display.
KVAh
VBR
Max
VYB
KVA
Min
Note : the flashing decimal point indicates the cursor position, a steady decimal point will be present
to identify the scaling of the number until the cursor position coincides with the steady decimal point
position. At this stage the decimal point will flash.
x1000
Hz
A
VYB
KVA
Min
V
VRY
If the scaling is not correct, Pressing the “
Down” key
will return to the “ Current Transformer Primary Value Edit”
stage with the most significant digit highlighted (associated
decimal point flashing) and the bottom line of the display
will be blanked.
x1000
P.F.
KW
Pressing the “ Down” key will scroll the value of
the most significant digit from 0 through to 9 unless
the presently displayed Potential Transformer Primary
Value together with the Current Transformer Primary
Value, previously set, would result in a maximum power
of greater than 1000 MVA per phase in that case
the digit range will be restricted.
This screen will only appear following an edit of the
Energy Display On Modbus.
This screen will only appear following an edit of the Current
Transformer Primary Value .
x1000
Hz
A
VYB
KVA
Min
A
A
New / Change Password, third digit entered, prompting
for fourth digit. (* denotes that decimal point will be
flashing).
V
VRY
KVAr
Sys
Pressing the “ Down” key will enter the “Potential
Transformer Primary Value Edit” mode.
Initially the “multiplier must be selected, pressing the “
Down” key will move the decimal point position to the
right until it reaches # # # .# after which it will return to
#. # # #.
x1000
IN
KVArh
Ph R
Current Transformer Primary Value Confirmation.
KVAh
x1000
P.F.
Ph B
V
VRY
Pressing the “ Up” key accepts the present value
and advances to the “Current Transformer Primary
Value edit” menu. (See Section 3.2.3)
Energy Display On Modbus Confirmation.
V
VRY
KVAr
Sys
Pressing “ Up” key resets the Lo (Min)
readings and advances to Modbus Address set menu
(see section 3.2.7).
Pressing “ Up” key accepts the presents value
and advances to the Reset menu (See section 3.2.6).
V
VRY
Pressing the “ Down” key will enter the “Energy Display
On Modbus Edit” mode and scroll the value through the values
1,2 & 3 wrapping back to 1
1 : Energy In Wh
2 : Energy in KWh
3: Energy in MWh.
Pressing the “ Up” key advances to the Reset menu
(See section 3.2.6).
KVAr
Sys
A
VYB
KVA
Min
x1000
IN
KVArh
Ph R
Reset option select, (Reset Hi)
x1000
Hz
The user has scrolled through to the “Hi” (Max)
KVAh
Ph Y
VBR
x1000
P.F.
Max
KWh
KW
Ph B
Pressing “ Up” key will select the value and
advance to the “Reset Hi Confirmation” Mode.
RS 485 Baud Rate confirmation :
V
VRY
KVAr
Sys
x1000
IN
KVArh
Ph R
x1000
Hz
A
VYB
KVA
Min
KVAh
Reset hI (Max) Confirmation.
Pressing the “ Down” key will re-enter the
“Reset option Select mode.
Ph Y
KW
VBR
Max
x1000
P.F.
KWh
Ph B
V
VRY
KVAr
Sys
A
VYB
KVA
Min
KW
VBR
Max
V
VRY
KVAr
Sys
Pressing “ Up” key resets the hI (Max)
readings and advances to Modbus address set menu
(see section 3.2.7).
x1000
IN
KVArh
Ph R
x1000
Hz
A
VYB
KVA
Min
Address confirmation Screen.
Press the “
Reset option select, (Reset ALL)
x1000
Hz
The user has scrolled through to the “ALL” .
Ph Y
Ph Y
Up” key to advance to next Screen
KW
VBR
Max
“Auto Scrolling” ( 3.2.8 )
KWh
KVAh
Ph Y
VBR
Max
V
VRY
KVAr
Sys
KW
VBR
Max
KW
VBR
Max
x1000
Hz
Pressing the “ Down” key will re-enter the
“Reset option Select mode.
KVAh
x1000
IN
KVArh
Ph R
V
VRY
KVAr
Sys
Pressing “ Up” key accepts the present status and
advance to the Low Current noise cutoff (see section 3.2.9).
VYB
KVA
Min
x1000
Hz
KVAh
x1000
IN
KVArh
Ph R
x1000
Hz
KVAh
Ph Y
Ph Y
VBR
Angle
Max
x1000
P.F.
KWh
x1000
P.F.
KWh
Ph B
Ph Y
x1000
P.F.
KWh
Ph B
Pressing “ Up” key resets ALL the readings
and advances to the Modbus address set menu
(see section 3.2.7).
V
VRY
KVAr
Sys
Pressing the “
Down” key will enter the “Auto Screen
Scrolling Edit” and toggle the status ‘Yes’ and ‘No’.
x1000
IN
KVArh
Ph R
V
VRY
KVAr
Sys
A
A
VYB
KVA
Min
KW
VBR
Max
VYB
KVA
Min
Pressing the “ Up” key will select the status displayed and
advance to the Low Current noise cutoff (see section 3.2.9).
x1000
Hz
KVAh
Ph Y
KW
VBR
Angle
Max
x1000
P.F.
KWh
x1000
IN
KVArh
Ph R
x1000
Hz
KVAh
Ph Y
x1000
P.F.
Pressing “ Up” key accepts the present value and will advance
to Energy Digit Rollover (reset) count setting screen(See section 3.2.12).
Pressing the “
Down” key will enter the “Parity & stop bit
Edit” mode and scroll the value through
odd : odd parity with one stop bit
no 1 : no parity with one stop bit
no 2 : no parity with two stop bit
E : even parity with one stop bit
A
VYB
KVA
Min
KW
VBR
Max
x1000
Hz
KVAh
Ph Y
x1000
P.F.
Enter Address, prompt for first digit.
(* Denotes that decimal point will be flashing).
Press the “
Down” key to scroll the value of the first digit
Press the “
Up” key to advance to next digit.
3.2.9. Low Current noise cutoff.
V
VRY
KWh
Ph B
KVAr
Sys
Pressing “ Up” key set displayed selected Parity and
will advance to Energy Digit Rollover (reset) count setting screen
(See section 3.2.12)
KWh
Ph B
V
VRY
KVAr
Sys
A
VYB
KVA
Min
KW
VBR
Max
x1000
IN
KVArh
Ph R
x1000
Hz
KVAh
VYB
KVA
Min
KW
KW
VBR
Max
A
KWh
KW
VBR
Max
x1000
Hz
V
VRY
Enter Address, second digit entered, prompt for third digit
(* Denotes that decimal point will be flashing).
x1000
IN
KVArh
Ph R
x1000
Hz
VYB
KVA
Min
pressing the “ Down” key will re-enter the “Low current
Noise cutoff Edit” mode.
Ph Y
KW
VBR
Max
x1000
P.F.
KWh
Down” key to scroll the value of the third digit
Pressing “ Up” key set displayed value and
will advance to Modbus baud rate setting.
(See section 3.2.10)
Ph Y
KW
VBR
Max
Ph Y
x1000
P.F.
KWh
Pressing the “
Down” key will enter the Energy digit reset
count edit mode. This will scroll the value of reset count from
7 to 14 for Wh,from 7 to 12 for KWh & from 7 to 9 for MWh.
Ex. If energy display on modbus is set Wh & It will set Energy digit
count to 10 then energy will reset after “9,999,999,999” & then will
rollback to zero.
Up key “ will advance to Energy digit reset count confirmation screen.
Pressing the “
Down” key will re-enter Energy digit reset count edit mode.
Up” key will set the value and exit from set up.
Note :
1) Default value is set to “14” i.e if energy count crosses 14 digit it will rollback to zero.
2) Energy displays on modbus is set to (2) & energy digit reset count is set to 12.Energy screen
on display will show “-------” i.e Energy overflow .when energy crosses the 11 digit count.
3) Energy displays on modbus is set to (3) & energy digit reset count is set to 9.Energy screen
on display will show “-------” i.e Energy overflow .when energy crosses the 8 digit count.
4. RS 485 ( ModBus ) Output :
The instrument supports MODBUS (RS485) RTU protocol( 2-wire ) .
KWh
Enter Address for third digit .
A
Up” key sets the displayed value and will exit from
x1000
P.F.
This screen allows the user to set Baud Rate of RS 485 port.
VYB
KVA
Min
Pressing the “
set up.
KVAh
KVAh
3.2.10 RS 485 Baud Rate :
KVAr
Sys
This screen enables user for setting maximum energy count after
which energy will rollback to zero depends upon setting of Wh,KWh,
& MWh.
Ph B
Pressing the “
KVAh
Ph B
Use the “
Low current noise cutoff Confirmation.
Ph B
V
VRY
VBR
Max
Pressing “
A
VYB
KVA
Min
KWh
Up” key to advance to next digit.
KVAr
Sys
KVAr
Sys
Pressing the “
Down” key will enter the “Low current
noise cutoff Edit” mode and scroll the “Value” through 0 & 30
and wrapping back to 0. Setting 30 will display measured
currents as 0 below 30 mA.
x1000
P.F.
x1000
P.F.
x1000
IN
KVArh
Ph R
x1000
Hz
Ph Y
Ph Y
Ph B
V
VRY
A
VYB
KVA
Min
x1000
IN
KVArh
Ph R
KVAh
Down” key to scroll the value of the second digit
Press the “
V
VRY
KVAr
Sys
Pressing “ Up” key accepts the present value and
advance to Modbus baud rate setting
Ph B
Use the “
3.2.12 Energy Digit Rollover (reset) count :
x1000
Hz
A
Enter Address, first digit entered, prompt for second digit
(* Denotes that decimal point will be flashing).
x1000
IN
KVArh
Ph R
x1000
IN
KVArh
Ph R
x1000
Hz
Press the “
Up” key to advance to Address confirmation Screen.
V
VRY
KVAr
Sys
A
VYB
KVA
Min
KVAh
KW
Ph Y
VBR
Max
x1000
P.F.
KWh
Ph B
x1000
IN
KVArh
Ph R
x1000
Hz
KVAh
Ph Y
The values displayed on screen are in kbaud ..
Pressing “ Up” key accepts the present value and
advance to the Parity Selection (see section 3.2.11).
x1000
P.F.
KWh
Ph B
Pressing the “
Down” key will enter the “Baud Rate
Edit” mode and scroll the value through 2.4, 4.8, 9.6 , 19.2 and
back to 2.4
Accessing 3 X register for reading measured values:
Each parameter is held in the 3X registers. Modbus Code 04 is used to access all parameters.
1 Word =16 bit register
To read parameter
1) Volts 3 : Start address= 04 (Hex)
No of words = 02
2) Current 3: Start address = 0A (Hex)
No of words = 02
Table : for Reading the Measured Parameters from Instrument
Down” key will be re-enter into Parity Edit mode .
This screen allows the user to set Low noise current cutoff in mA.
Low current cutoff Edit.
Two consecutive 16 bit registers represent one parameter. Refer table below for the addresses of
3X registers and addresses for the parameters measured by the instruments.
Pressing “
The range of allowable address is 1 to 247 .
x1000
IN
KVArh
Ph R
Register Addresses :
Each Query for reading the data must be restricted to 40 parameters or less. Exceeding the 40 parameter
limit will cause a ModBus exception code to be returned.
This screen allows the user to set RS485 address for instruments
V
VRY
1 start bit,
8 data bits, least significant bit sent first
1 bit for even/odd parity
1 stop bit if parity is used; 1 or 2 bits if no parity
RS 485 Parity confirmation :
Ph B
3.2.7 Address Setting : This screen applies to the RS 485 output only.
KVAr
Sys
2 byte Cyclical Redundancy Check (CRC)
Communication Baud Rate is user selectable from the front panel between 2400, 4800, 9600, 19200 bps.
Ph B
A
Error Checking Bytes
Byte format
This screen allows the user to set Parity & number of stop bits of RS 485 port.
KW
VYB
KVA
Min
4 bytes (32 bits) per parameter.
Floating point format ( to IEEE 754)
Most significant byte first (Alternative least significant byte first)
3.2.11 RS 485 Parity Selection :
This screen allows user to enable screen scrolling.
A
KVAr
Sys
Format of Data Bytes
Ph B
VYB
KVA
Min
Reset ALL Confirmation.
Pressing the “ Up” key will select the value and advances
to the Parity Selection (see section 3.2.11).
KWh
A
x1000
IN
KVArh
Ph R
8-bit binary, hexadecimal 0-9, A-F
2 hexadecimal characters contained in each 8-bit field of
the message
Ph B
Ph B
V
VRY
The each byte in RTU mode has following format:
KWh
Auto scrolling Edit.
Pressing “ Up” key will select the value and
advance to the “Reset ALL Confirmation” Mode.
Down” key will be re-enter into Baud Rate Edit mode .
x1000
P.F.
KW
x1000
P.F.
Pressing “
x1000
Hz
A
VYB
KVA
Min
KVAh
KVAh
x1000
P.F.
x1000
IN
KVArh
Ph R
KVAr
Sys
This Screen confirms the Address set by user .
3.2.8 Auto Scrolling :
x1000
IN
KVArh
Ph R
V
VRY
Connection should be made using twisted pair shielded cable. All "A" and "B" connections are daisy chained
together. The screens should also be connected to the “Gnd” terminal. To avoid the possibility of loop currents,
an Earth connection should be made at one point on the network.Loop (ring) topology does not require any
termination load. Line topology may or may not require terminating loads depending on the type and length
of cable used. The impedance of the termination load should match the impedance of the cable and be at both
ends of the line. The cable should be terminated at each end with a 120 ohm (1/4 Watt min.) resistor.
RS 485 network supports maximum length of 1.2km. Including the Master, a maximum of 32 instruments
can be connected in RS485 network.The permissible address range for Instrument is between
1 and 247 for 32 instruments. Broadcast Mode (address 0) is not allowed.
The maximum latency time of an Instrument is 200ms approx. i.e. this is the amount of time that
can pass before the first response character is output.
After sending any query through software ( of the Master) , it must allow 200ms of time to elapse before
assuming that the Instrument is not going to respond. If slave does not respond within 200 ms,
Master can ignore the previous query and can issue fresh query to the slave.
Address Parameter Parameter
(Register) No.
1
30001
Volts 1
2
30003
Volts 2
3
30005
Volts 3
4
30007
Current 1
5
30009
Current 2
30011
6
Current 3
30013
7
W1
30015
8
W2
30017
9
W3
30019
10
VA1
30021
11
VA2
30023
12
VA3
30025
13
VAR1
30027
14
VAR2
30029
15
VAR3
30031
16
PF1
30033
17
PF2
30035
18
PF3
30037
19
----------------30039
20
--------30041
21
30043
22
Volts Ave
30045
23
Volts Sum
30047
24
Current Ave
30049
25
Current Sum
30051
26
Watts Ave
30053
27
Watts Sum
30055
28
VA Ave
30057
29
VA Sum
30059
30
VAr Ave
30061
31
VAr Sum
30063
32
PF Ave
30065
33
PF Sum
30067
34
--------30069
35
--------30071
36
Freq
30073
37
Watt Hour
--------30075
38
39
30077
VAR Hour
--------40
30079
41
30081
VAh
67
30133
Volts Ave Max
68
30135
Volts Ave Min
71
30141
Current Ave Max
72
30143
Current Ave Min
101
30201
VL 1 - 2 ( Calculated )
102
30203
VL 2 - 3 ( Calculated )
103
30205
VL 3 - 1 ( Calculated )
113
30225
I neutral
Modbus Start Address Hex
3P 4W 3P 3W
High Byte
Low Byte
00
0
00
2
00
4
00
6
00
8
00
A
00
X
C
00
X
E
00
X
10
00
X
12
00
X
14
00
X
16
00
X
18
00
X
1A
00
X
1C
00
X
1E
00
X
20
00
X
22
------00
24
------00
26
00
28
------00
2A
00
2C
00
2E
00
30
00
32
00
34
00
36
00
38
00
3A
00
3C
00
3E
00
40
X
00
42
----------------00
44
00
46
00
48
00
------4A
00
4C
00
4E
------00
50
00
84
00
86
00
8C
00
8E
X
00
C8
X
00
CA
X
00
CC
X
00
E0
Note : Parameters 1,2,3 are L-N Voltage for 3P 4W & L-L Voltage for 3P 3W .
Function code :
03
Read Holding Registers
Read content of read /write location ( 4X )
04
Read input Registers
Read content of read only location ( 3X )
16
Presets Multiple Registers
Set the content of read / write locations ( 4X )
Exception Cases : An exception code will be generated when instrment receives ModBus query with
valid parity & error check but which contains some other error ( e.g. Attempt to set floating point variable to
an invalid value ) The response generated will be “Function code” ORed with HEX (80H ).
The exception codes are listed below
Illegal function
The function code is not supported by instrument.
02
Illegal Data
Address
Attempt to access an invalid address or an attempt to read
or write part of a floating point value
03
Illegal Data
Value
Attempt to set a floating point variable to an invalid value
Capacitive
Inductive
2.
3.
Read / Write Modbus Start Address Hex
High Byte
Low Byte
00
04
Read / Write
Read only
00
06
Read only
00
08
Read / Write
00
0A
---------Write only
Read only
---Write only
Write only
------Read Only
Read / Write
Write Only
00
00
----
0E
14
----
00
00
------00
00
00
18
1A
------24
26
28
Explanation for 4 X register :
Address
40005
Parameter
Energy display
on Modbus
Capacitive
Inductive
Connections Quadrant
Import
1
Sign of
Active
Power ( P )
+P
+Q
+
L
Import
4
+P
-Q
+
Export
2
-P
+Q
-
C
-
L
3
This address is used to set energy display on modbus in Wh,
KWh & MWh.Write one of the following value to this address.
2 = Energy in KWh.
1 = Energy in Wh.
3 = Energy in MWh.
This address is read only and displays System Voltage
40009
System
Current
This address is read only and displays System Current
40011
System
Type
This address is used to set the System type.
Write one of the following value to this address.
2 = 3 Phase 3 Wire
3 = 3 Phase 4 Wire.
Writing any other value will return error .
40013
----
40015
Reset Energy
Counter
This address is used to reset the Energy Counter.
Write zero value to this register to reset the energy counter.
Writing any other value will return an error.
Instrument
Address
This address is read only & display instrument address
between 1 to 247 .
To protect the product against permanent damage, surge transients must
be limited to 2kV pk. It is good EMC practice to suppress differential
surges to 2kV at the source. The unit has been designed to automatically
recover in the event of a high level of transients. In extreme
circumstances it may be necessary to temporarily disconnect the
auxiliary supply for a period of greater than 5 seconds to restore correct
operation.
The Current inputs of these products are designed for connection in to
systems via Current Transformers only, where one side is grounded.
-P
-Q
----
40025
Min - Reset
This address is used to reset the Min parameters value.
Write Zero value to this register to reset the Min parameters.
Writing any other value will return an error.
40027
Max - Reset
This address is used to reset the Max parameters value.
Write Zero value to this register to reset the Max parameters.
Writing any other value will return an error.
L1
L2
L3
N
6.2 Case Dimension and Panel Cut Out
3.78”
96mm
P1 S1
P1 S1
P1 S1
L
O
A
D
3.62”
92mm
3.15”
80mm
8. Specification :
3.78”
96mm
FRONT DISPLAY
AREA
PANEL CUTOUT
3.62”
92mm
System
3 Phase 3 Wire / 4 Wire programmable at site
40029
----
----
----
----
40037
Sys Power
System Power is the maximum system power based on the
values of system type, system volts and system current.
This address is used to setting maximum energy count after
which energy will rollback to zero depends upon setting of Wh,
KWh,& MWh.If Energy display on modbus in Wh count will be set
in between 7 to 14 or In KWh set in between 7 to 12 & In MWh set
in between 7 to 9.
Word Order controls the order in which instrument
receives or sends floating - point numbers:- normal or reversed
register order . In normal mode, the two registers that make up
a floating point numbers are sent most significant bytes first.
In reversed register mode , the two registers that make up
a floating point numbers are sent least significant bytes first.
To set the mode, write the value ‘2141.0’ into this registerthe instrument will detect the order used to send this value and
set that order for all ModBus transaction involving floating point
numbers.
Inputs
6. Installation
Nominal input voltage
(Three wire and Four wire)
57.7 VL-N to 277V L-N (100VL-L to 480 V L-L)
Mounting is by four side clamps, slide the side clamps through side slot till side clamp
gets firmly locked in a groove (Refer fig.) Consideration should be given to the space
required behind the instrument to allow for bends in the connection cables.
Max continuous input
voltage
120% of Rated Value
Max short duration input
voltage
2 x Rated Value
(1s application repeated 10 times
at 10s intervals)
Nominal input voltage burden
0.2VA approx. per phase
Nominal input current
1A / 5A AC rms programmable at site
Max continuous input current
120% of Rated Value
Nominal input current burden
0.6VA approx. per phase
Max short duration current input
20 x Rated Value (1s application repeated
5 times at 5 min. intervals)
System CT primary values
Std. Values upto 4kA (1 or 5 Amp secondaries)
6.3 Wiring
PANEL
SLIDE IN THIS DIRECTION AND LOCK
Instrument
Front side
----
40031
Word Order
2 5 8 11 1 3 4 6 7 9 13 14
MAX PANEL THICKNESS 0.18”,5mm
----
40023
40041
3-PHASE 4-WIRE UNBALANCED LOAD
DIGITAL METERING SYSTEM
L N
AUX
SUPPLY
Inductive means Current lags Voltage
Capacitive means Current leads Voltage
The instrument displays Active power ( P )with “ + ” ( positive sign ) ,
the connection is “ Import ” .
L
O
A
D
P1 S1
ESD precautions must be taken at all times when handling this product.
Input connections are made directly to screw-type terminals with indirect
wire pressure. Numbering is clearly marked in the plastic moulding. Choice of
cable should meet local regulations. Terminal for both Current and Voltage
2
inputs will accept upto 3mm x 2 diameter cables.
Note : It is recommended to use wire with lug for
connection with meter.
6.4 Auxiliary Supply
Energy digit
Reset Count
P1 S1
L1
L2
L3
N
Sign of
Sign of
Inductive /
Reactive
Power
Capacitive
Power ( Q ) Factor ( PF )
C
Export
4.
Avoid routing leads alongside cables and products that are, or could be, a
source of interference.
Description
System
Voltage
40039
3 4 6 7 9
L N
AUX
SUPPLY
When instrument displays Active power ( P )with “ - ” ( negative sign ) ,
the connection is “ Export ” .
40007
40021
2 5 8
Screened output and low signal input leads or have provision for fitting
RF suppression components, such as ferrite absorbers, line filters etc., in
the event that RF fields cause problems.
Note: It is good practice to install sensitive electronic instruments that are
performing critical functions, in EMC enclosures that protect against electrical
interference which could cause a disturbance in function.
Accessing 4 X register for Reading & Changing the setting inside instrument:
Each setting is held in the 4X registers .ModBus code 03 is used to read the current setting and code 16
is used to write/change the setting.
Address Parameter Parameter
(Register) No.
Energy display on Modbus
3
40005
4
40007
Sys Voltage
5
40009
Sys Current
65
40011
Sys Type
---7
40013
8
40015
Energy Reset
11
40021
Mod Addr.
---12
40023
13
40025
Min Reset
14
40027
Max Reset
---15
40029
---16
40031
19
40037
Sys Power
20
Energy digit Rollover(reset) count
40039
21
40041
Word Order
3-PHASE 3-WIRE UNBALANCED LOAD
DIGITAL METERING SYSTEM
This product has been designed to meet the certification of the EU directives
when installed to a good code of practice for EMC in industrial environments,
e.g.
1.
01
7. Connection Diagrams
6.1 EMC Installation Requirements
5. Phaser Diagram : Refer the diagram for explanation
The instrument should ideally be powered from a dedicated supply, however
it may be powered from the signal source, provided the source remains within
the limits of the chosen auxiliary voltage.
Auxiliary
As the front of the enclosure conforms to IP54 it is protected from water spray
from all directions, additional protection to the panel may be obtained by the
use of an optional panel gasket. The terminals at the rear of the product
should be protected from liquids.
The instrument should be mounted in a reasonably stable ambient
temperature and where the operating temperature is within the range
0
-10 to 55 C . Vibration should be kept to a minimum and the product should
not be mounted where it will be subjected to excessive direct sunlight.
Caution
1.
In the interest of safety and functionality this product must be installed by
a qualified engineer, abiding by any local regulations.
2.
Voltages dangerous to human life are present at some of the terminal
connections of this unit. Ensure that all supplies are de-energised before
attempting any connection or disconnection.
3.
These products do not have internal fuses therefore external fuses must
be used to ensure safety under fault conditions.
Standard nominal Auxillary
supply voltages & Frequency
110V AC/50 Hz , 230V AC/50 Hz ,380V AC/50 Hz ,
100 - 250V AC- DC, 12 - 48V DC
a.c. supply voltage tolerance
+20 % / -15 % of Rated Value
a.c. supply frequency range
45 to 66 Hz
a.c. supply burden
4.5V A
d.c. supply burden
3W
6.5 Fusing
It is recommended that all voltage lines are fitted with 1 amp HRC fuses.
6.6 Earth/Ground Connections
For safety reasons, CT secondary connections should be grounded in
accordance with local regulations.
Operating Measuring Ranges
Voltage
5 .. 120 % of Rated Value
Current
5 .. 120 % of Rated Value
Frequency
40 .. 70 Hz
Power Factor
0.8 Lag ... 1 ... 0.8 Lead
Environmental
Accuracy
Optional (CL 0.2)
on request
Standard (CL 1.0) Optional (CL 0.5)
on request
Operating temperature
-10 to 55 0 C
Storage temperature
-20 to +65 C
0
Voltage
+- 0.5 % of Range
+- 0.5 % of Range
+- 0.2 % of Range
Relative humidity
0 .. 90 % RH
Current
+- 0.5 % of Range
+- 0.5 % of Range
+- 0.2 % of Range
Warm up time
3 minute (minimum)
Active Power
+- 0.5 % of Range
+- 0.5 % of Range
+- 0.2 % of Range
Shock
15g in 3 planes
Reactive Power
+- 0.5 % of Range
+- 0.5 % of Range
+- 0.2 % of Range
Vibration
10 .. 55 Hz, 0.15mm amplitude
Apparent Power
+- 0.5 % of Range
+- 0.5 % of Range
+- 0.2 % of Range
Enclosure ( front only )
IP 54 as per IEC 60529
Active Energy
+- 1.0 %
+- 0.5 %
+- 0.2 %
Reactive Energy
+- 1.0 %
+- 0.5 %
+- 0.2 %
Enclosure
Apparent Energy
+- 1.0 %
+- 0.5 %
+- 0.2 %
Style
96mm x 96mm DIN Quadratic
Material
Polycarbonate Housing ,
Self extinguish & non dripping as per UL 94 V-0
Terminals
Screw-type terminals
Power Factor
+- 1.0 % of Unity
Frequency
+- 1.0 % of Unity
+- 0.5 % of Unity
+- 0.15 % of Mid Frequency
Measurement error is much less than error specified above.Variation due to influence quantity
Is less than twice the error allowed for reference condition.
Depth
< 80 mm
Weight
0.620 kg Approx.
Reference conditions for Accuracy :
ModBus ( RS 485 ) Option :
0
0
Reference temperature
23 C + 2 C
Input frequency
50 or 60Hz + 2%
Input waveform
Sinusoidal (distortion factor 0.005)
Auxiliary supply voltage
Rated Value + 1 %
Auxiliary supply frequency
Rated Value + 1 %
Power Factor
cos phi = 1 for Active power
sin phi = 1 for Reactive power
Voltage
50% .........100% of Rated Value
Current
10% .........100% of Rated Value
Protocol
ModBus ( RS 485 )
Baud Rate
19200 , 9600 , 4800 or 2400
( Programmable )
Parity
Odd or Even, with 1 stop bit,
Or None with 1 or 2 stop bits
9. Connection for Optional RS 485 (modbus):
RS 485 ( Modbus )
Nominal range of use of influence quantities for measurands
0
Temperature
0 to 50 C
Auxiliary supply voltage
Rated Value + 10 %
Auxiliary supply frequency
Rated Value + 10 %
Temperature Coefficient
(For Rated
value range of use
0
0... 50 C )
Error change due to variation of an
influence quantity
0
0.025% / C for Voltage (50..120% of Rated Value)
0
0.05% / C for Current ( 10..120% of Rated Value )
2 * Error allowed for the reference
condition applied in the test.
Display
LED
3 line 4 digits . Digit height 11mm
Update
Approx. 1 seconds
Controls
User Interface
Two push buttons
Standards
EMC Immunity
IEC 61326
10V/m min-Level 3 industrial low level
electromagnetic radiation environment
IEC 61000-4-3.
Safety
IEC 61010-1 , Year 2001
IP for water & dust
IEC 60529
Isolation
Dielectric voltage withstand
test between circuits and
accessible surfaces
2.2 kV RMS 50 Hz for 1 minute
between all electrical circuits
B
A Gnd
RS 485
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