Lumel SPC5 User manual

SPC5
REVERSE POWER CONTROLLER
SERVICE MANUAL

Section
Touch Screen Reverse Power Controller
Installation & Operating Instructions
Contents
1. Introduction
2. Measurement Reading Screens
3. Programming
3.1 Password Protection
3.2 Menu selection
3.2.1 Grid / Generator Parameters Selection
3.2.1.1 System type
3.2.1.2 Potential transformer Primary value
3.2.1.3 Potential transformer secondary value
3.2.1.4 Current transformer Primary value
3.2.1.5 Current transformer Secondary value
3.2.1.7 Low current noise cutoff
3.1.1 Change Password
INDEX
3.2.1.6 System Frequency
3.2.2 Communication Parameter selection screen
3.2.2.1.1 RS 485 Address Setting
3.2.2.1.2 RS 485 Baud rate
3.2.2.1.3 RS 485 Parity & Stop bit Selection
3.2.2.1 Data RS485 Modbus Setting
3.2.1.9 Energy Digit Reset Count
3.2.1.8 Energy Resolution
1

3.2.2.2.2 RS 485 Parity & Stop bit Selection
3.2.2.2.3 Delay Between Polls
3.2.2.2.4 Timeout Duration
3.2.2.2.5 Number of Inverters
3.2.2.2.6 Inverter Addresses
3.2.3 Solar Parameters
3.2.3.1 Grid Minimum Power
3.2.3.3 Panel Capacities (kW)
3.2.3.4 Solar Power Reference
3.2.4 Relay Control
3.2.4.1.1.1 Inverter-Grid Relay ON Delay
3.2.4.1.1.2 Inverter-Grid Relay OFF Delay
3.2.4.1 Automatic Mode
3.2.4.2 Manual Mode
3.2.4.1.1.3 Inverter-Grid Relay Configuration
3.2.4.3 Disable Mode
3.2.3.2 Generator Minimum Power
3.2.3.5 Manual Inverter Power
3.2.4.1.1 Inverter-Grid Relay Parameters
3.2.4.1.2.1 Inverter-Gen. Relay Power Threshold
3.2.4.1.2.2 Inverter-Gen. Relay ON Delay
3.2.4.1.2.3 Inverter-Gen. Relay OFF Delay
3.2.4.1.2.4 Inverter-Gen. Relay Configuration
3.2.4.1.2 Inverter-Generator Relay Parameters
3.2.4.1.2.5 Inverter Power ON Delay
3.2.5.1 Resetting Parameter
3.2.5 Reset Parameter selection screen
3.2.2.2 Inverter RS 485 Modbus Setting
3.2.2.2.1 RS 485 Baud Rate
2

12. Specifcation
9. Installation
9.1 EMC Installation Requirements
9.2 Case Dimensions and Panel Cut-out
9.3 Wiring
9.4 Auxiliary Supply
9.5 Fusing
9.6 Earth / Ground Connections
10. Connection Block Diagram
13. Connection for Dual Modbus Addon Card
8. Phasor Diagram
7. Relay Tripping Functionality
6.3 Load Menu
6.2 Grid Menu
6.1 Main Screen
5. Phase Sequence Indication screen
4. Touch screen calibration
6. Measurement Screens
6.4 Solar Menu
3.2.6 Brightness & Contrast
3.2.7 RGB Color Code
3.2.8 Factory Reset
6.5 Indications on Main Screen
11. Wiring Diagram
3

SETUP
POWER FLOW
2.786 kW
12.34 kW
15.13 kW
1. Introduction
This instrument is a panel mounted 96 x 96mm DIN Quadratic Digital metering system for controlling
upto 20 Solar Inverters of PVSA make. The instrument is available in two models* : With
Generator Sense and Without Generator Sense. The instrument prevents the excess solar power
generated by inverters from getting fed back to the grid / generator. The instrument does this by
measuring the important electrical parameters like AC voltage, AC Current, Frequency, Active Power,
Active Energy at the grid / generator and monitoring the power from solar inverter(s). The instrument
integrates accurate measurement (All Voltage & Current measurements are True RMS upto 31st
Harmonic) with 320x240 Pixels touch screen TFT LCD display.
This instrument can be configured and programmed at site for the following parameters of grid /
generator:
PT Primary, PT Secondary, CT Primary, CT Secondary (5A or1A).
The front panel has a 3.5” Touch Screen through which the user can navigate through the available
measurement readings of the Grid / Generator, Solar and Load and congure the product settings.
The main screen is divided into 4 submenus, namely GRID /
GENERATOR, LOAD, SOLAR & SETUP. Each submenu contains a
list of options. By touching the icons cum submenu access buttons
on main screen, submenus can be accessed. GRID / GENERATOR
submenu can be used to access the power, active energy : import &
export and additional grid / generator parameters namely THD, on
hour, number of Aux interruptions, voltage, current, etc. LOAD
submenu can be used for accessing the Power Contribution of Solar
and Grid / Generator to the Load. SOLAR submenu provides all the
information about the PV Plant in tabular and graphical form.
*Note : The Generator parameters and settings related to Generator referred to in this booklet
are available for the instrument with Generator Sense only.
4

TABLE 1 : Measurement Parameters
Grid / Generator Average Voltage
Grid / Generator Average Current
Grid / Generator Frequency
Grid / Generator Voltage VL1-N
Grid / Generator Voltage VL2-N
Grid / Generator Voltage VL3-N
Grid / Generator Voltage VL1-L2
Grid / Generator Voltage VL2-L3
Grid / Generator Voltage VL3-L1
Grid / Generator Current L1
Grid / Generator Current L2
Grid / Generator Current L3
Volts
Amps
Hz
Volts
Volts
Volts
Volts
Volts
Volts
Amps
Amps
Grid / Generator Neutral Current
Amps
Amps
Grid & Gen. Active Import Energy (8 Digit resolution) kWh
Grid / Generator Active Power Kwatts
Units of
Measurement
%
Grid / Generator Individual Harmonics V
Grid / Generator Individual Harmonics I %
Measured Parameters
Inverter Capacity (Individual & Total)
Inverter Power (Individual & Total)
Inverter Target Power (%)
W
W
%
Individual Inverter Connection Status
Auxiliary Supply On Hour
Auxiliary Supply Number of Interruptions
Grid / Generator Phase Sequence Indication
Hours
Counts
Grid & Gen. Active Export Energy (8 Digit resolution) kWh
Load Active Power Kwatts
5

TABLE 1 : Continued...
*Note : THD Parameters are L-N.
Grid / Generator I1 THD
Grid / Generator I2 THD
Grid / Generator V1 THD*
Grid / Generator V2 THD*
Grid / Generator V3 THD*
%
Grid / Generator I3 THD
Grid / Generator Average Voltage THD
Grid / Generator Average Current THD
%
%
%
%
%
%
%
Units of
Measurement
Measured Parameters
6

2. Measurement Reading Screens
In normal operation the user is presented with one of the measurement reading screens out of several
screens. These screens from particular submenu may be scrolled through one at a time in incremental
order by touching the “ key” and in decremental order by touching “ key” on that screen.
RESET
PARAMETERS
COMMUNICATION
MAIN MENU
GRID / GENERATOR
A
A
LOAD SOLAR
A
A
Measurement Reading Screens
ENERGY
FREQUENCY SYSTEM VOLTAGE CURRENT OVERVIEW
ACTIVE GRID
IMPORT
ON HOUR
POWER
CAPACITIES
VOLTAGE
LINE-LINE
VOLTAGE
PHASE THD
VOLTAGE
LINE
CURRENT
NEUTRAL
CURRENT
LINE THD
CURRENT
PHASOR
DIAGRAM
NO. OF
INTERRUPTS
CURR. THD
PHASE
SEQUENCE
LOAD POWER
CONTRIBUTION
POWER
GENERATION
GRID EXPORT
ENERGY
SYSTEM
OVERVIEW
CONNECTION
STATUS
LINE-
NEUTRAL
VOLT &
ACTIVE
ACTIVE GRID
EXPORT
ACTIVE GEN.
IMPORT
ACTIVE GEN.
EXPORT
GEN EXPORT
ENERGY
7

PASSWORD
(Sec 3.2.1)
Setup Parameter Screens
GRID / GEN.
(Sec 3.2.1)
PARAMETERS
(Sec 3.1)
C
A
A
B
COMMUNICATION SOLAR RESET GRID
PARAMETERS PARAMETERS CONTROL PARAMETERS
RELAY
(Sec 3.2.2) (Sec 3.2.3) (Sec 3.2.4) (Sec 3.2.5)
BRIGHTNESS
& CONTRAST
(Sec 3.2.6)
RGB COLOR
CODE
(Sec 3.2.7)
FACTORY
RESET
(Sec 3.2.8)
SYSTEM
(Sec 3.2.1.1)
TYPE
PT
(Sec 3.2.1.2)
PRIMARY
PT
(Sec 3.2.1.3)
SECONDARY
CT
(Sec 3.2.1.4)
PRIMARY
CT
(Sec 3.2.1.5)
SECONDARY
SYSTEM
(Sec 3.2.1.6)
FREQUENCY
LOW CURRENT
(Sec 3.2.1.7)
NOISE CUTOFF
RS485 DATA
(Sec 3.2.2.1)
PARAMETERS
RS485 INVERTER
(Sec 3.2.2.2)
PARAMETERS
GRID MINIMUM
(Sec 3.2.3.1)
POWER
PANEL
(Sec 3.2.3.3)
CAPACITIES
SOLAR POWER
(Sec 3.2.3.4)
REFERENCE
AUTOMATIC
(Sec 3.2.4.1)
MODE
MANUAL
(Sec 3.2.4.2)
MODE
DISABLE
(Sec 3.2.4.3)
RESET ALL
RESET ALL ENERGIES
RESET AUX. ON HOUR
RESET AUX. INTERRUPT
RS 485
(Sec 3.2.2.2.1)
BAUD RATE
RS 485
(Sec 3.2.2.2.2)
PARITY
DELAY
(Sec 3.2.2.2.3)
BTWN. POLLS
TIMEOUT
(Sec 3.2.2.2.4)
DURATION
NUMBER OF
(Sec 3.2.2.2.5)
INVERTERS
INVERTER
(Sec 3.2.2.2.6)
ADDRESSES
A
B
RS 485
(Sec 3.2.2.1.1)
ADDRESS
RS 485
(Sec 3.2.2.1.2)
BAUD RATE
RS 485
(Sec 3.2.2.1.3)
PARITY
A
A
RELAY ON DELAY
(Sec 3.2.4.1.1.1)
RELAY OFF DELAY
(Sec 3.2.4.1.1.2)
RELAY CONFIG.
(Sec 3.2.4.1.1.3)
A
C
CHANGE
PASSWORD
(Sec 3.1.1)
(Sec 3.2.1)
INVERTER
(Sec 3.2.4.1.1)
WITH GRID
INVERTER WITH
GENERATOR
(Sec 3.2.4.1.2)
RELAY
(Sec 3.2.4.1.2.1)
THRESHOLD
RELAY ON DELAY
(Sec 3.2.4.1.2.2)
RELAY OFF DELAY
(Sec 3.2.4.1.2.3)
RELAY CONFIG.
(Sec 3.2.4.1.2.4)
INVERTER PWR
(Sec 3.2.4.1.2.5)
ON DELAY
GEN. MINIMUM
(Sec 3.2.3.2)
POWER
MANUAL
(Sec 3.2.3.5)
INV. POWER
ENERGY
(Sec 3.2.1.8)
RESOLUTION
ENERGY DIGIT
(Sec 3.2.1.9)
RESET COUNT
8
8

3.1. Password Protection
Password protection can be enabled to prevent unauthorised access to set-up screens, by default
password is “0000”.
Password protection is enabled by selecting any four digit number.
3. Programming
The following sections comprise step by step procedures for conguring the instrument for individual
user requirements. To access the set-up screens touch on the “SETUP ” button in Main Menu. This
will take the User into the Password Protection Entry Stage(Section 3.1).
After touching “SETUP” button Password protection screen is displayed.
Screen consists of 0 to 9 digit input keypad for entering the password very
similar to any calculator in touchscreen mobile.“Enter Password” is
displayed on screen at start so that user can enter password using
displayed keypad.
Touching “ key” will display 1 in display area, similarly user can enter
remaining 3 digits.
For deleting any digit while entering password, user can touch “ key”.
After entering the complete password user needs to confirm password by touching “ key’’.
DEL
ENTER
ENTER
1
If Entered password is correct then “Password Accepted” is displayed on screen & user will enter into
setup menu.
Password conrmed.
If Entered password is wrong then “Password Rejected” is displayed on screen & user need to re-
enter the password After wrong password is entered, user needs to touch “ key ” for trying
another password.
Password Incorrect.
9

Change Password Option is the sixth option in list of “SETUP” submenu,
and can be accessed by a simple touch on “ Change Password” button.
In this screen user rst needs to enter the current password.
3.1.1 Change Password
After input of correct password,“PASSWORD ACCEPTED”is displayed
& now user can enter the new 4 digit password.
After entering new password user needs to touch “ key” to confirm.
After confirming “PASSWORD CHANGED” is displayed on screen, which
ensures successful changing of the password.
New Password confirmed.
ENTER
10

Touching on GRID / GEN. PARAMETER will open the grid / generator parameters list screen. Then
these screens from particular parameter may be scrolled through one at a time in incremental order by
touching the “ key” and in decremental order by touching “ key” on given touch screen for
section 3.2.1 to 3.2.5.
3.2.1 Grid / Gen. Parameters Selection
After entering in the “GRID / GEN. PARAMETERS”, List of following parameters will be displayed :-
3.2.1.1 SYSTEM TYPE
3.2.1.2 PT PRIMARY
3.2.1.3 PT SECONDARY
3.2.1.4 CT PRIMARY
3.2.1.5 CT SECONDARY
3.2.1.7 LOW CURRENT NOISE CUTOFF
3.2.3 SOLAR PARAMETERS
3.2.4 RELAY CONTROL
3.2.5 RESET PARAMETERS
3.1.1 CHANGE PASSWORD
3.2.8 FACTORY RESET
3.2.6 BRIGHTNESS & CONTRAST
3.2.7 RGB COLOR CODE
3.2.1.6 SYSTEM FREQUENCY
3.2.1 GRID / GEN. PARAMETERS
3.2.2 COMMUNICATION PARAMETERS
3.2 Menu selection.
After entering in the SETUP SUBMENU, user will be asked to enter password & after input of
correct password list of following parameters will be displayed on screen :-
3.2.1.8 ENERGY RESOLUTION
3.2.1.9 ENERGY DIGIT RESET COUNT
11

3.2.1.2 Potential Transformer Primary Value
The nominal full scale voltage will be displayed as Line to Line Voltages.
This screen can be accessed only from Grid / Gen. Parameters list menu.
Here again 0 to 9 digit input keypad is provided to set value of PT Primary,
& user can confirm this value with a simple touch “ key”.
“ key” is used to multiply value by 1000.
In case presently displayed Potential Transformer Primary value together
with the Current Transformer Primary value, previously set, would result in
a maximum power of greater than 666.6 MVA per phase,”Invalid value” will
be displayed. Then the valid range will be displayed.
Valid range of PT primary setting value is
100V L-L to 692.8KV L-L.
If value outside the range is entered, It will display “INVALID VALUE”
followed by correct range of parameter.
Note : Changing PT Primary value changes the Generator Minimum
Power’’ (Section 3.2.3.1) and ‘Auto-Relay Power Threshold (Gen.)’ (Section
3.2.4.1.2.1).
3.2.1.1 System Type
The System type of the meter is fixed at 3P4W.
VALID RANGE IS : 100.0 TO 692800
K
ENTER
3.2.1.3 Potential Transformer secondary Value
The value must be set to the nominal full scale secondary voltage which will be obtained from the the
Transformer when the potential transformer (PT) primary is supplied with the voltage dened in
3.2.1.2 potential transformer primary voltage. The ratio of full scale primary to full scale secondary is
dened as the transformer ratio.
This screen can be accessed only from grid / generator parameters list menu. Here again 0 to 9 digit
input keypad is provided to set value of PT Secondary, & user can confirm this value with a simple
touch on “ ” key.
ENTER
12

3.2.1.4 Current Transformer Primary Value
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.
This screen can be accessed only from Grid / Gen.Parameters list menu.
Here again 0 to 9 digit input keypad is provided to set value of CT Primary
& user can confirm this value with a simple touch on “ key” and
“ key” is used to multiply value by 1000. In case presently displayed
Current Transformer Primary Value together with the Potential Transformer
Primary Value results in a maximum power of greater than 666.6 MVA,
“invalid value” will be displayed. Example: If primary value of PT is set as
692.8kV L-L (max value) then primary value of Current is restricted to
1157A.
ENTER CT PRIMARY VALUE
ENTER
K
CT PRIMARY
INVALID VALUE
PT SECONDARY
The Valid range of instrument is from 100 to 600V.
If value outside the range is entered, It will display “INVALID VALUE”
followed by correct range of parameter.
The “Maximum Power” restriction of 666.6 MVA refers to 120% of nominal current and 120% of
nominal voltage, i.e, 462.96 MVA nominal power per phase.
Valid range of CT primary setting value is from 1 to 9999. If value outside
the range is entered, It will display “INVALID VALUE” followed by correct
range of parameter.
Note : Changing CT Primary value changes the Generator Minimum
Power’’ (Section 3.2.3.1) and ‘Auto-Relay Power Threshold (Gen.)’ (Section
3.2.4.1.2.1).
INVALID VALUE
CT PRIMARY
13

3.2.1.5 Current Transformer Secondary Value
This screen is used to set the secondary value for Current Transformer.
Two options: 1 AMPERE & 5 AMPERE are displayed on screen. Touching
radio button in front of particular option will select that option.
Touch on “ key” will confirm the setting. Touching the “ key”
will keep the old selected setting and will return to previous menu.
OK
OK BACK
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
V
VVV
0.000
0.000
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
V
VVV
0.000
0.000
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
V
VVV
0.000
0.000
CT SECONDARY
5 AMPERE
1 AMPERE
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
V
VVV
0.000
0.000
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
V
VVV
0.000
0.000
CT SECONDARY
1 AMPERE
5 AMPERE
OK BACK
3.2.1.6 System Frequency
OK
OK
BACK
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
V
VVV
0.000
0.000
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
V
VVV
0.000
0.000
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
V
VVV
0.000
0.000
CT SECONDARY
5 AMPERE
1 AMPERE
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
V
VVV
0.000
0.000
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
V
VVV
0.000
0.000
SYSTEM FREQUENCY
50Hz
60 Hz
OK BACK
This screen is used to set the frequency of the input.
Two options : 50 & 60 Hz are displayed on screen.
Touching radio button in front of particular option will select that option.
Touch on “ key” will confirm the setting. Touching the
“ key” will keep the old selected setting and will return to previous
screen.
3.2.1.7 Low Current noise cutoff
This screen allows the user to set Low noise current cutoff in mA.
Two options, 0 MILLI-AMPERE & 30 MILLI-AMPERE are displayed on
screen. Touching radio button in front of particular option will select that
option. It allows user to set minimum current noise value below which
meter shows zero current.
Touch on “ key” will confirm the setting.
Touching the “ key” will keep the old selected setting and will
return to previous menu.
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
CT SECONDARY
5 AMPERE
1 AMPERE
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
LOW CURRENT NOISE CUTOFF
0 MILLI-AMPERE
30 MILLI-AMPERE
OK BACK
BACK
OK
14

BACK
OK
OK
Three options: WATT HOUR, KILO-WATT HOUR & MEGA-WATT HOUR
are displayed on screen. Touching radio button in front of particular option
will select that option.
Touch on “ key” will confirm the setting.
Touching the “ key” will keep the old selected setting and will
return to previous menu.
3.2.1.8 Energy Resolution
This screen enables user to set energy in terms of Wh / kWh / MWh on Modbus (Data RS485)
depending on the user requirement.
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
CT SECONDARY
5 AMPERE
1 AMPERE
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
ENERGY ON RS485
WATT HOUR (Wh)
KILO-WATT HOUR (KWh)
MEGA-WATT HOUR (MWh)
OK BACK
Note : Default value is set to ‘KILO -WATT HOUR’ i.e. Energy on Modbus will be in
terms of kWh.
3.2.1.9 Energy Digit Reset Count (Rollover Count)
This screen enables the user for setting maximum energy count after which energy will rollover to
zero. This rollover count values are 7, 8 and 9 Digits.
Touching radio button in front of particular option will select that option.
Touch on “ key” will confirm the setting.
Touching the “ key” will keep the old selected setting and will
return to previous menu.
OK
OK
BACK
Note :-
If Energy Resolution is set to MWh & energy digit reset count is set to 9, Energy screen on
display will show “-------” i.e energy overow when energy crosses the 9 digit count.
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
CT SECONDARY
1 AMPERE
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2VL2
ENERGY DIGIT RESET COUNT
7 DIGITS
9 DIGITS
8 DIGITS
OK BACK
15

3.2.2.1.1 RS485 Address Setting
This screen allows the user to set RS485 address parameter for the
instrument, when instrument is used for accessing data and configuration
by the user.
Here 0 to 9 digit input keypad is provided to set RS485 address & user can
confirm this value with a simple touch on “ key”.
The range of allowable address is 1 to 247.
If value outside the range is entered, it will display “INVALID VALUE”
followed by the correct range of parameter.
3.2.2.1.3 RS485 PARITY
3.2.2.1.1 RS485 ADDRESS
3.2.2.1.2 RS485 BAUD RATE
3.2.2 Communication Parameter Selection :
After entering in the “COMMUNICATION PARAMETERS” list of following settings are available :
ENTER RS485 ADDRESS
RS485 ADDRESS
RS485 ADDRESS
INVALID VALUE
3.2.2.1 DATA RS485 PARAMETERS
3.2.2.2.4 TIMEOUT DURATION
3.2.2.2.1 RS 485 BAUD RATE
3.2.2.2.3 DELAY BETWEEN POLLS
3.2.2.2 INVERTER RS485 PARAMETERS
3.2.2.2.5 NUMBER OF INVERTERS
3.2.2.1 Data RS485 Modbus Setting
ENTER
3.2.2.2.2 RS 485 PARITY
3.2.2.2.6 INVERTER ADDRESSES
16

3.2.2.1.2 RS 485 Baud Rate
This screen allows the user to set Baud Rate of Data RS 485.
Five options: 4800, 9600, 19200, 38400 & 57600 Bauds are displayed on
screen. Touching radio button in front of particular option will select that
option.
Touch on “ key” will confirm the setting.
Touching the “ key” will keep the old selected setting and will
Return to previous menu.
BACK
OK
OK
3.2.2.1.3 RS 485 Parity & Stop bit Selection
This screen allows the user to set Parity & number of stop bits for Data
RS485.
Four options: NO PARITY WITH ONE STOP BIT, NO PARITY WITH TWO
STOP BITS, EVEN PARITY WITH ONE STOP BIT, ODD PARITY WITH
ONE STOP BIT are displayed on screen.
Touching radio buttion in front of particular option will select that option.
Touch on “ key” will confirm the setting.
Touching the “ key” will keep the old selected setting and will
return to previous menu.
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
5 AMPERE
1 AMPERE
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
RS485 PARITY & STOP BITS
ODD PARITY WITH ONE STOP BIT
NO PARITY WITH ONE STOP BIT
NO PARITY WITH TWO STOP BITS
EVEN PARITY WITH ONE STOP BIT
OK BACK
OK
OK
BACK
3.2.2.2 Inverter RS485 Modbus Setting
These settings are used for the connection of instrument with the inverters through the dual modbus
add-on card.
3.2.2.2.1 RS 485 Baud Rate
This screen allows the user to set Baud Rate of Inverter RS 485.
Five options: 4800, 9600, 19200, 38400 & 57600 Bauds are displayed on
screen. Touching radio button in front of particular option will select that
option.
Touch on “ key” will confirm the setting.
Touching the “ key” will keep the old selected setting and will
Return to previous menu.
BACK
OK
OK
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
V
0.000
0.000
0.000
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
V
0.000
0.000
0.000
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
V
0.000
0.000
0.000
CT SECONDARY
5 AMPERE
1 AMPERE
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
V
0.000
0.000
0.000
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
V
0.000
0.000
0.000
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
V
0.000
0.000
0.000
RS485 BAUD RATE
57600
38400
4800 9600
19200
OK BACK
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
V
0.000
0.000
0.000
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
V
0.000
0.000
0.000
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
V
0.000
0.000
0.000
CT SECONDARY
5 AMPERE
1 AMPERE
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
V
0.000
0.000
0.000
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
V
0.000
0.000
0.000
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
V
0.000
0.000
0.000
RS485 BAUD RATE
57600
38400
4800 9600
19200
OK BACK
Note: The Baud Rate of all the inverters (selected in Section 3.2.2.2.5) should be same.
17

3.2.2.2.2 RS 485 Parity & Stop bit Selection
This screen allows the user to set Parity & number of stop bits of Inverter
RS485.
Four options: NO PARITY WITH ONE STOP BIT, NO PARITY WITH TWO
STOP BITS, EVEN PARITY WITH ONE STOP BIT, ODD PARITY WITH
ONE STOP BIT are displayed on screen.
Touching radio buttion in front of particular option will select that option.
Touch on “ key” will confirm the setting.
Touching the “ key” will keep the old selected setting and will
return to previous menu.
OK
BACK
3.2.2.2.3 Delay Between Polls
This screen allows the user to set the delay between polls (in miliseconds)
sent to the inverters for correct power instructions.
Here 0 to 9 digit input keypad is provided to set the delay between polls &
user can confirm this value with a simple touch on “ key”.
The range of allowable value is 10000 msec to 60000 msec.
If value outside the range is entered, it will display “INVALID VALUE”
followed by the correct range of parameter. Default value is 30000 msec.
3.2.2.2.4 Timeout Duration
This screen allows the user to set the timeout duration for the modbus
connected to the inverters. If an inverter stops communication for time
duration more than that set by the user, then the inverter would be
considered disconnected.
Here again 0 to 9 digit input keypad is provided to set the timeout duration
& user can confirm this value with a simple touch on “ key”.
The range of allowable value is 200 msec to 60000 msec.
If value outside the range is entered, it will display “INVALID VALUE”
followed by the correct range of parameter. Default value is 5000 msec.
ENTER
ENTER
TIMEOUT DURATION
ENTER TIMEOUT DURATION
DELAY BETWEEN POLLS
ENTER DELAY BETWEEN POLLS
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
5 AMPERE
1 AMPERE
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
LINE-NEUTRAL VOLTAGE
VL2
VL2
VL2
VL2
RS485 PARITY & STOP BITS
ODD PARITY WITH ONE STOP BIT
NO PARITY WITH ONE STOP BIT
NO PARITY WITH TWO STOP BITS
EVEN PARITY WITH ONE STOP BIT
OK BACK
Note: Parity & Number of Stop Bits of all the inverters (selected in Section 3.2.2.2.5) should be same.
18