Trinity POWERCUBE User manual

POWERCUBE
Electrical System Monitor
USER'S MANUAL
RS485 to
RS232
PowerCube
RS485 to
RS232
PowerCube
RS232 cable
POWERCUBE
POWERCUBE

POWERCUBE
Electrical System Monitor
This document contains the latest technical information
about PowerCube which is a micro-controller based Electrical
System Monitor. The product PowerCube is sophisticated
electronic equipment, and the user is advised to read this
User's Manual carefully before attempting to install or operate
the equipment.
Published on: 11/11/2009
Document Version: 1.0
USER'S MANUAL
PowerCube – Operational Manual
TRINITY

Warranty statement
Trinity warrants to the original retail purchaser of the Trinity product enclosed
with this limited warranty statement that the product, if purchased new and used
in the India conforms to the manufacturer's specifications and will be free from
defects in workmanship and materials for a period of one year from the date of
original purchase, unless expressly stated otherwise by Trinity, in a written
format.
Should your Trinity product prove defective during the warranty period, please
bring the product securely packaged in its original container or an equivalent,
along with proof of the date of original purchase, to our Trinity Dealer or Factory.
You are responsible for all costs (shipping, insurance, travel time) in getting the
product to the service location. Trinity will, at its option, repair or replace on an
exchange basis the defective unit, without charge for parts or labor. When
warranty service involves the exchange of the product or of a part, the item
replaced becomes Trinity property. The replacement unit may be new or
refurbished to the Trinity standard of quality, and at Trinity's option, the
replacement may be another model of like kind and quality. Trinity's liability for
replacement of the covered product will not exceed the original retail selling
price of the covered product. Exchange or replacement products or parts assume
the remaining warranty period of the product covered by this limited warranty.
What This Warranty Does Not Cover:
This warranty does not apply to refurbished or reconditioned products. This
warranty covers only normal use in India. This warranty does not cover damage
to the Trinity product caused by parts or supplies not manufactured, distributed
or certified by Trinity. This warranty is not transferable. This warranty does not
cover third party parts, components or peripheral devices added to the Trinity
product after its shipment from Trinity. Trinity is not responsible for warranty
service should the Trinity label or logo or the rating label or serial number be
removed or should the product fail to be properly maintained or fail to function
properly as a result of misuse, abuse, improper installation, neglect, improper
shipping, damage caused by disasters such as fire, flood, and lightning,
improper electrical current, interaction with non-Trinity products, or service
other than by an Trinity Authorized Service.
The warranty and remedy provided above are exclusive and in lieu of all
other express or implied warranties including, but not limited to, the
implied warranties of merchantability or fitness for a particular
purpose. In the event, the remedies above fail, Trinity's entire liability
shall be limited to a refund of the price paid for the Trinity product
covered by this limited warranty. Except as provided in this written
warranty, neither Trinity Energy Systems Pvt. Ltd. nor its affiliates shall
be liable for any loss, inconvenience, or damage, including direct,
special, incidental, or consequential damages, resulting from the use or
inability to use the Trinity product, whether resulting from breach of
warranty or any other legal theory.
PowerCube – Operational Manual
TRINITY

Table of Contents
1.0 Introduction ............................................................................1
1.1 Main features available in this model ...............................2
1.2 Technical Specifications .................................................3
1.2.1 Input Specifications ......................................................5
1.2.3 Output Specifications ....................................................5
2.0 Installation and commissioning...............................................6
2.1 3P4W mode installation .................................................6
2.2 3P3W mode installation .................................................7
2.3 BACK VIEW OF THE UNIT ..............................................9
2.4 CAPACITOR PANEL CONNECTION SCHEME .....................10
2.5 RS485 CONNECTIONS .................................................11
3.0 Operational Details................................................................12
Switching Delay, Target PF and Second Target PF. ..........19
..........................................25
3.1.27 Selecting Control Device ..............................................25
3.1 Programming Mode .....................................................13
3.1.1 Selecting Installation types ..........................................13
3.1.2 Setting the PT Primary and PT Secondary.......................14
3.1.3 Setting Main CT Primary and CT Secondary ....................14
3.1.4 Setting Capacitor CT Primary and CT Secondary .............15
3.1.5 Setting Date and Time.................................................15
3.1.6 Setting Log Duration ...................................................16
3.1.7 Selecting Demand Window and Demand Interval.............16
3.1.8 Selecting RS232 Baudrate for data downloading..............16
3.1.9 Selecting the RS-485 Baudrate .....................................17
3.1.10 Entering the Unit Address ............................................17
3.1.11 Changing the Password................................................17
3.1.12 Setting the Event Number, Event parameter, Event
Value, Event Seconds and Event On ..............................18
3.1.13 Setting the Relay, Control Stages, Control Action, On Delay,
3.1.14 Setting the Alarm, Relay number, Alarm parameter,
Alarm value, Alarm Delay, Alarm Hysteresis and Alarm On ..20
3.1.15 Setting Back Light On Time ..........................................22
3.1.16 Setting a Digital Input .................................................22
3.1.17 Resetting the Energies.................................................22
3.1.18 Resetting the Demand Power........................................23
3.1.19 Resetting Logs............................................................23
3.1.20 Resetting Run Time.....................................................23
3.1.21 Resetting Events.........................................................23
3.1.22 Resetting Minimum and Maximum.................................24
3.1.23 Resetting the Master for whole parameter counters .........24
3.1.24 Setting Scroll Page Time ..............................................24
3.1.25 Setting Daily Auto Sense .............................................25
3.1.26 Setting Manual Auto Sense
...
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4.0 Communication ........................................................................39
4.1 MODBUS RTU on RS485 port...........................................39
4.2 Data Logging and RS232C ..............................................40
4.2.1 Installing the RS232 software .........................................41
4.2.2 Logger Window Utility ....................................................43
4.3 Handling the RS232 Logger ............................................44
4.3.1 Setting COM number and Baudrate ..................................44
4.3.2 Retrieving the logged data..............................................44
4.3.3 Setting KWh Consumption for any particular time ..............45
4.3.4 Setting a printer to export the data..................................46
4.3.5 Closing the Window for RS232 Logger ..............................46
4.3.6 Exporting Min/Max Event Values with Event Occurrence...........46
4.3.7 Exporting the System Data .............................................47
4.3.8 Exporting Odd Harmonics Data........................................48
4.3.9 Setting a Histogram.......................................................49
4.3.10 Setting a Trending Graph................................................50
4.3.11 Displaying a Graph ........................................................51
4.3.12 Setting a Color on Graph ................................................51
5.0 Control Outputs .......................................................................53
5.1 Relays for Alarm action ..................................................53
5.2 Demand Management with Alarm mode ...........................55
5.3 PF correction ................................................................56
Appendix A ...................................................................................60
Address map for RS485 for the various parameters
Installation in 3P4W and 3P3W.......................................60
3.2 Run Mode.....................................................................26
3.2.1 Run Mode in 3P4W ........................................................28
3.2.2 Run Mode in 3P3W ........................................................38
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1.0 Introduction
PowerCube is a micro-controller based electrical system monitor. PowerCube
is much more than a simple digital power meter or a load manager. The product
is so feature rich that with judicious use, comprehensive measurement and
control of entire electrical system is possible.
PowerCube has twelve relays which can be used either for demand management
or for PF correction.
PowerCube has a black & white graphical LC display. Hence, it is able to display
individual harmonic data as histographs. Vector diagrams, waveforms of
voltages and currents are also shown.
It has 2 MB of memory for data logging of all measured parameters, min-max
values and events.
PowerCube has two connections for communication i.e. RS-485 for connection
to SCADA/EMS and RS232C for downloading of logged data.
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POWERCUBE
TRINITY

1.1 The main features available in this model
Comprehensive Measurement:
All readings are True RMS measurements
Fast, real-time cycle by cycle measurement, at 80 samples/cycle
Four quadrant readings (Power and Power Factor)
Min. /Max. Values
KVA and KW Demands including predictive PKW and PKVA demand.
Odd Harmonics up to 29th of individual Voltage, and Current Waveforms
including THD
Measurement of all three voltages - phase to phase and phase to neutral,
all three currents, power factors - phase wise and system, Hz, all three
powers (KW, KVA & KVAR), phase wise and system, all three energies,
Phase angles, Demand and Maximum Demand in KW and KVA with
programmable integration period, harmonic active power and
fundamental active power, neutral current, THD for each voltage and
current.
Installations & Connections:
Single model accepts 3P4W and 3P3W connections
Site selectable 1A or 5A CT secondary selection
User selectable CT and PT Ratio.
Data Logging :
On Board MB of Memory
Logs all Min./ Max. Values
Logs all electrical Parameters, real-time and integrated (energies
and demands) and harmonics to get complete Energy system snapshot.
Events Logging : 4 Events can be programmed by the user for :
Parameter of interest, high alarm or low alarm, time delay & alarm
threshold.
Control:
Programmable relays either for PF Control or Alarm or for both of them
Programmable Capacitor Bank Stages (4,8,10, 12)
Alarm relays are individually configurable for different parameters
Maximum Demand measurement in sliding window, fixed window
predictive modes for effective management of demand.
Communication:
RS232C for downloading of logged Data
Supports MODBUS-RTU protocol on RS485
Display:
Easy user interface through
Graphical black & white LC discplay - 240 x 128 pixels.
•
•
•
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•
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•
•
•
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• 2
•
•
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•
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• push button
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Parameter Mode
Type Statistics Symbol 3P4W 3P3W
1.2 Technical Specifications
True RMS Basic Parameters
Parameter Mode
Type Statistics Symbol 3P4W 3P3W
Voltage
(Volts L-N)
Direct Voltage Input : 0 to 300V AC
PT Ratio : Freely Programmable
up to 220KV
Range of Reading : 0.0 to 220KV
Accuracy : 0.5% of Reading
Vr
VY
Vb -
Voltage
(Volts L-L)
Direct Voltage Input : 0 to 510V AC
PT Ratio : Freely Programmable
up to 220KV
Range of Reading : 0.0 to 220KV
Accuracy : 1.0% of Reading
Secondary Current
Input : 1A or 5A
CT Ratio : Freely Programmable
up to 9999A
Range of Reading : 0.00 to 9999A
Accuracy : 0.25% of Reading
Vry
Vyb
Vbr -
Ir
Iy
Ib -
Current
(Amps
Ir, Iy, Ib)
Ir
Iy
Ib
Capacitor
Current
(Amps
Ir, Iy, Ib)
Secondary Current
Input : 1A or 5A
CT Ratio : Freely Programmable
up to 9999A
Range of Reading : 0.00 to 9999A
Accuracy : 0.25% of Reading
Neutral
Current
Line
Frequency
Accuracy : 3% of Reading In -
Hz
40 to 70 Hz, Accuracy : 0.3% of Reading
Power
Active
Power (P)
Accuracy :1% of Reading
(Between 0.5 Lag to 0.8 Lead)
(P) R-Phase
(P) Y-Phase
(P) B-Phase
Reactive
Power (Q)
Accuracy :1.5% of Reading
(Between 0.5 Lag to 0.8 Lead)
(Q) R-Phase
(Q) Y-Phase
(Q) B-Phase
Apparent
Power (S) Accuracy :1% of Reading
(S) R-Phase
(S) Y-Phase
(S) B-Phase
Harmonic Active Power
Fundamental Active Power
Power
Factor
Accuracy :1% of Reading (IPFI>0.5)
Range of
Reading : 0.05 to 1.00 Lag/Lead
PF R-Phase
PF Y-Phase
PF B-Phase
System PF
3
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Parameter Mode
Type Statistics 3P4W 3P3W
Total Active
Energy (KWh)
Range of Reading : 0 to 314780.00 MWh
Accuracy : 1.0S as per IS 13779
Total Reactive
Energy (KVARh)
Range of Reading : 0 to 314780.00 MWh
Accuracy : 1.5% of Reading (Between
0.5 Lag to 0.8 Lead)
Total Apparent
Energy (KVAh)
Range of Reading : 0 to 314780.00 MWh
Accuracy : 1.0% of Reading
Energy
Parameter Mode
Statistics 3P4W 3P3W
Active Power
(KW) Demand : Sliding & Fixed Selectable
Apparent Power
(KVA) Demand : Sliding & Fixed Selectable
Predictive Demand : Fixed Window
Demand
SYMBOL
KWDMND
KWDMND
Parameter Mode
3P4W 3P3W
rd th
Harmonics for Voltages (3 to 29 )
Power Quality
rd th
Harmonics for Current (3 to 29 )
THD for each Voltage
THD for each current
Parameter Mode
3P4W 3P3W
Phase Angles
Miscellaneous
Cap. Bank KVAR
Run Time
4
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1.2.1 Input Specifications
Supply : Three Phases and Neutral of a 3P4W
system/ three phases of a 3P3W system
Voltage
Direct Voltage Input : Up to 510V L-L and 300V L-N
PT Ratio : Freely Programmable up to 220KV
Site selectable.
Range of Reading : 1-220KV
Burden : 0.5VA
Current
Secondary Current
Input : 5A or 1A
Range of Reading : 0 – 9999A
Burden : < 1.0VA
Overload : 5A CT = 6A RMS Continuous
1A CT = 5A RMS Continuous
Power Supply:
Not needed as unit has in-built 3 phase supply with an operating range of
60 VAC - 480 VAC, 50-60 Hz.
An auxiliary supply is also provided for off site use of the Saturn. It also
operates on 60-480 VAC and 50-60 Hz.
1.2.3 Output Specifications
Programmable Relay Output
Relay outputs : 12.
Relay rating : 3A @ 250 VAC, Resistive load.
5
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2.0 Installation and commissioning
The PowerCube supports two installation modes – 3P4W and 3P3W. The
installation process of these modes is described below:
2.1 3P4W mode installation
Follow these steps to install & commission the unit:
1. Push the unit into the panel and mount using the clamps provided on it.
Unit does not require external auxiliary supply. It will be powered on
from connected 3P4W system.
2. Connect the three phases with the phase sequence being R-Y-B to the
terminals marked U1, U2 & U3 respectively. Make sure that the three
phases coming to the unit come through control fuses of 1.0 Amp rating.
This will protect the electronics inside from damage due to severe over
voltages or phase faults in the system.
3. Connect the neutral to the terminal marked U4.
4. Connect the two wires from the R-Phase CT to terminals marked M1
& L1 such that S1 from CT goes to M1 on the unit. Connect the two wires
from the Y-phase CT to terminals marked M2 & L2 such that S1 from CT
goes to M2 on the unit. Connect the two wires from the
B-phase CT to terminals marked M3 & L3 such that S1 from CT goes
to M3 on the unit.
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5. Connect the two wires from the R-Phase capacitor bank CT to terminals
marked CM1 & CL1 such that S1 from CT goes to CM1 on the unit.
Connect the two wires from the Y-phase capacitor bank CT to terminals
marked CM2 & CL2 such that S1 from CT goes to CM2 on the unit.
Connect the two wires from the B-phase capacitor bank CT to terminals
marked CM3 & CL3 such that S1 from CT goes to CM3 on the unit.
6. Switch on the three phases supply. Unit will power on from these three
phases supply and display company information for 4 to 5 seconds.
7. After that, it will display the first page.
8. If there is very little current in the CT circuits, the unit may show PF as
0.999 or 1.000. This will go away as soon as the current builds up in the
CURRENT TRANSFORMERS (CTs) above 0.4 % of rated CT.
9. The unit needs to be programmed for the various parameters which are
field programmable, and for selecting the various options supported.
See OPERATIONAL DETAILS chapter for doing this.
10. The unit is ready for operation.
2.2 PowerCube in 3P3W mode installation
Follow these steps to install & commission the unit:
1. Push the unit into the panel and mount using the clamps provided. Unit
does not required external auxiliary supply. It will be powered on from
connected 3P3W system.
2. Connect the three phases with the R phase going to the terminal U1, B
phase going to terminal U3 and Y phase going to terminal U4. Make sure
that the three phases coming to the unit come through control fuses of
1.0 Amp rating. This will protect the electronics inside from damage due
to severe over voltages or phase faults in the system.
3. Connect the two wires from the R-Phase CT to terminals marked M1 & L1
such that S1 from CT goes to M1 on the unit. Connect the two wires from
the B-phase CT to terminals marked M3 & L3 such that S1 from CT goes
to M3 on the unit.
7
Implement Step-5 if relays are used for PF-Controlling action
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4. Connect the three wires from the R-Phase capacitor bank CT to terminals
marked CM1 & CL1 such that S1 from CT goes to CM1 on the unit.
Connect the two wires from the Y-phase capacitor bank CT to terminals
marked CM2 & CL2 such that S1 from CT goes to CM2 on the unit.
Connect the two wires from the B-phase capacitor bank CT to terminals
marked CM3 & CL3 such that S1 from CT goes to CM3 on the unit.
5. Switch on the three phases supply. Unit will be powered on from this
three phase supply and display company information for 4 to 5 seconds.
6. After that, it will display the first page.
7. If there is very little current in the CT circuits, the unit may show PF as
0.999 or 1.000. This will go away as soon as the current builds up in the
current transformers (CTs), above 0.4 % of rated CT.
8. The unit needs to be programmed for the various parameters which are
field programmable, and for selecting the various options supported.
See OPERATIONAL DETAILS chapter for doing this.
9. The unit is ready for operation.
8
Implement Step-4 if relays are used for PF-Controlling action
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2.3 BACK VIEW OF THE UNIT
9
Main CT
connection
Capacitor CT
connection
Capacitor CT
connection RS232C
Connection
RS485
connection
Potential
free input
Relay
outputs
Voltage
connection
Auxiliary
Supply
PN
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2.4 CAPACITOR PANEL CONNECTION SCHEME
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2.5 RS485 CONNECTIONS
RS232 CABLE
B-
Host
RS485 - RS232C
converter
Upto 31 units on bus
without repeater
A+
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12
3.0 Operational Details
The PowerCube is a versatile meter, with all the necessary features to implement
a robust electrical load management system. It can be configured to suit most
control and communication needs. This is achieved by making as many
parameters field programmable as possible.
There are basically two modes of operation in PowerCube:
1. Programming Mode
2. Run Mode
After power on, the unit is in Run Mode by default and therefore, to enter into
Programming Mode, proceed the following instructions:
1. Press key from the keys provided at the bottom of the
unit and then the unit will prompt a password box such as
shown below .
2. Enter a four numerical password by pressing the numerical
keys such as shown below.
3. Press key to enter into Programming Mode.
4. In case, the password is not used, ignore the password box and
then, press to enter into Programming Mode such as shown
below.
Enter password
Password: ****
ENTER
ENTER
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13
PowerCube – Operational Manual
1 3P4W
PT-Primary
2 000240
3
PT-Secondary
110
4
MAINS - CT Primary
0245
5
MAINS-CT Secondary
5
6
CAPS - CT Primary
0500
7
CAPS-CT Secondary
5
Installation
No. Settable Parameters
Values
3.1 Programming Mode
The Programming Mode contains forty seven programmable parameters with
which the values for all the parameters are settable and also, the first column
will prompt with an arrow ( ) which shows the parameter is selected as
shown above.
The parameters can now be set and run by pressing the keys provided at the
bottom of the unit such as
1. Installation
PowerCube supports two types of electrical installations, 3P4W and 3P3W. This
installation type should be selected to either one of them according to your
electrical installation type.
To set the installation type, proceed the following instruction.
1. On the Programming Mode, press and keys to retrieve the
arrow onto parameter number 1, Installation Type such as shown
below.
numeric values from 0to 9as well as (Up),
(Down), (Left), (Right), and (Enter) keys.
Hence, If the keys are not being used for 3 minutes continuously, the unit will
automatically exit the Programming Mode and return to the Run mode.
However, the back light of the graphical LCD will always be on.
3.1.1 Selecting Installation types
1 3P4W
Installation
No. Settable Parameters
Values
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14
2. Press key. Simultaneously, both the arrow and the
parameter value start blinking which shows that the parameter can
now be set.
3. Set the Installation type by pressing and keys and then,
press key to confirm the value.
4. If the setting is completed, press key to exit the Programming
Mode and return to the Run Mode.
5. Or else, press key to proceed for the next programmable
parameter.
3.1.2 Setting the PT Primary and PT secondary
2. PT-Primary & 3. PT-Secondary
Both the PT primary and PT secondary should be set to give for the actual voltage
of PT operated meters. The PT-primary is freely programmable from 110V to
220000V and the PT Secondary is selectable from any one of the following
voltages: 110V, 240V or 415V.
To set PT Primary and Secondary, proceed the following instructions.
1. On the Programming Mode, press and keys to retrieve the
arrow onto parameter number 2, PT Primary such as shown below.
No. Settable Parameters
Values
PT-Primary
2000240
3
PT-Secondary
110
2. Press key. Simultaneously, both the arrow and the
parameter value start blinking which shows that the parameter can
now be set.
3. Set the PT Primary by pressing and keys until the
desired value is received and then, press key to confirm the
value.
4. Press key to retrieve the arrow onto parameter number 3,
PT Secondary such as shown above.
5. Set the PT Secondary such as above step 2 and 3.
6. If the setting is completed, press key to exit the Programming
Mode and return to the Run Mode.
7. Or else, press key to proceed to the next programmable
parameter.
3.1.3 Setting Main CT Primary and CT Secondary
4. Main CT Primary & 5. Main CT Secondary
Both the Main CT primary and CT secondary should be set to get actual current of
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PowerCube – Operational Manual
CT operated meters. The CT-primary is freely programmable from 110V to
220000V and the PT Secondary is selectable from any one of the following
voltages: 110V, 240V or 415V.
To prompt the Main CT Primary and CT Secondary, on the Programming
Mode, press and keys to retrieve the arrow onto parameter
number 4, Mains CT Primary and then, set it as before instruction
such as shown below.
No. Settable Parameters
Values
4
MAINS - CT Primary
0245
5
MAINS-CT Secondary
5
3.1.4 Setting Capacitor CT Primary and CT Secondary
6. CAPS-CT Primary & 7. CAPS-CT Secondary
In case of PF correction, both the capacitor CT primary and the CT secondary
should be set to get actual current value in your system. The CT-primary is freely
programmable from 110V to 220000V and the PT Secondary is selectable from
any one of the following voltages: 110V, 240V or 415V.
To prompt the Capacitor CT Primary and CT Secondary, on the Programming
Mode, press and keys to retrieve the arrow onto parameter
number 6, CAPS- CT Primary and then, set it as before instruction such as
shown below.
3.1.5 Setting Date and Time
8. Date & 9. Time
The system date can be set in DD/MM/YYYY format and the real time can be set in
HH:MM.SS format. However, hours are set in the 24 hour format, i.e. 6.00 PM is
set as 18:00:00 hours. This date and time will not only represent into system
real time but it will also represent into Log Duration.
To prompt the DATE and Time, on the Programming Mode, press and
keys to retrieve the arrow onto parameter number 8, Date and Time
respectively and then, set it as before instruction such as shown below.
No. Settable Parameters Values
6
CAPS - CT Primary
0500
7
CAPS-CT Secondary
5
No. Settable Parameters
Values
Time 12:42:419
Date 8 27/07/2009
15
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