Beltrame S2014 User manual

Rev. 4.0
BELTRAME
CENTRO SERVIZI ENERGIA

2
CONTENTS
IMPORTANT INFORMATION................................................................................................................
1. SAFETY INSTRUCTIONS............................................................................................................
1.1 General
1.2 Safety Instrucons
2. DEVICE DESCRIPTION...............................................................................................................
2.1 Introducon
2.2 S2014 Main Specificaons
2.3 CE / EU Compliance
2.4 Overall Dimensions and Fixing Holes...................................................................................
2.5 Applicaon Area
2.6 Basic Inseron Configuraons.............................................................................................
2.7 Hardware.............................................................................................................................
2.8 Control elements and interfaces
2.9 Terminal blocks....................................................................................................................
3. DEVICE CONNECTIONS.............................................................................................................
3.1 Input/Output power connecon / rated data
3.2 Device connecons: CN2 Interface
3.3 Device connecons: CN3 I/O control signals.......................................................................
4. OPERATING MODES.................................................................................................................
5. FUNCTIONS DESCRIPTION........................................................................................................
5.1 So Start
5.2 Compensaon and Droop funcons
5.3 ‘Keep Alive’..........................................................................................................................
5.4 Limiters................................................................................................................................
5.4.1 V/f Limiter
5.4.2 Minimum excitaon current: Under Excitaon limiter
5.4.3 Maximum excitaon current: Over Excitaon limiter..............................................
5.4.4 Minimum capability: Q- limiter
5.4.5 Maximum capability: Q+ limiter..............................................................................
5.4.6 S2014 Configr: Limits status
6. WORKING MODE AND REGULATIONS.......................................................................................
6.1 Automac Voltage Regulator (AVR)....................................................................................
6.2 Field Current Regulaon (FCR)
6.3 Power Factor regulaon (PF)...............................................................................................
6.4 Reacve power regulaon (VAR)
6.5 Digital reference adjustment by calibrator (Up/Down).......................................................
6.6 Digital reference adjustment by analog inputs
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7. OPERATOR INTERFACE..............................................................................................................
7.1 Control keypad and display
7.2 Navigang inside the menus
7.3 Parameters Saving...............................................................................................................
7.4 Menù descripon................................................................................................................
7.4.1 Menù “D” - Display (readings)
7.4.2 Menù “R” - References and Regulators
7.4.3 Menù “I” - Inputs and Outputs...............................................................................
7.4.4 Menù “C” - Commands
7.4.5 Menù “P” - Parameters............................................................................................
8. TROUBLE SHOOTING................................................................................................................
8.1 First Inspecon
8.2 Trouble shoong
8.3 Repairing..............................................................................................................................
9. CONNECTION DIAGRAM...........................................................................................................
9.1 Introducon
9.2 Basic S2014 Connecon Diagrams.......................................................................................
9.3 S2014 Connecon Diagrams with Low Voltage Alternator..................................................
9.4 S2014 Connecon Diagrams with Medium Voltage Alternator...........................................
10. BELTRAME CONFIGURATOR: THE PC SOFTWARE.......................................................................
10.1 Connecon between AVR and PC
10.2 Installaon and Communicaon setup
10.3 Parameters seng: P.xxx and procedure.............................................................................
10.4 Parameters Seng: L.xxx and R.xxx.....................................................................................
10.5 Parameters Seng: D.xxx....................................................................................................
10.6 Parameters Seng: O.xxx
10.7 Regulator Windows.............................................................................................................
10.8 Trend window
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Our experience has shown that, if the informaon and recommendaons contained in this Operang Instrucons
are observed, the best possible reliability of our products is assured.
The data contained herein purports solely to describe the product and it is not a warranty of performance or
characteriscs. It is with the best interests of our customers in mind that we constantly strive to improve our
products and keep them abreast of advances in technology. This may, however, lead to discrepancies between a
product and its "Technical Descripon" or "Operang Instrucons".
This document has been carefully prepared and reviewed, however should in spite of this the reader find an error,
he is requested to inform us at his earliest convenience.
It is scarcely possible for the operang instrucons for technical equipment to cover every eventuality, which can
occur in pracce. We would therefore request you to nofy us or our agent in the case of all unusual behavior that
does not appear to be covered by these operang instrucons.
It is pointed out that all local regulaons in force must be observed when connecng and commissioning this
equipment in addion to these operang instrucons.
We cannot accept any responsibility for damage incurred as a result of mishandling the equipment regardless of
whether parcular reference is made in these operang instrucons or not.
All rights with respect to this document, including applicaons for patent and registraon of other industrial
property rights, are reserved. Unauthorized use, in parcular reproducon or making available to third pares, is
prohibited.
IMPORTANT INFORMATION
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1. SAFETY INSTRUCTIONS
1.1 General
The safety instrucons shall be followed during installaon, commissioning, operaon and maintenance of the
excitaon system. Read all instrucons carefully before operang the device and keep this manual for future
reference.
1.2 Safety Instrucons
The safety instrucons precede any instrucon in the context where a potenally dangerous situaon may appear.
The safety instrucons are divided into three categories, and each one is introduced by a symbol with its
descripon:
Required Qualificaon
Personnel involved in installaon work and commissioning of the S2014 must be familiar, specially
instructed and informed about the residual danger areas according to the regulaons currently in
force. Operang personnel is not permied to work at the control system. Only specially instructed
personnel must carry out maintenance and repair work. The maintenance personnel must be
informed about the emergency shutdown measures and must be capable of turning off the system
in case of emergency. The maintenance personnel must be familiar with the accident prevenon
measures at their workplace and must be instructed in first aid and firefighng.
It is the owner’s responsibility to ensure that each person involved in the installaon and
commissioning of the S2014 has received the appropriate training or instrucons and has
thoroughly read and clearly understood the safety instrucons in this chapter.
DANGER!
This symbol indicates an imminent danger resulng from mechanical forces or high voltage.
A non-observance leads to life-threatening physical injury or death.
WARNING!
This symbol indicates a dangerous situaon. A non-observance may lead to bad or
life-threatening physical injury or death. It may cause also possible damages to the devices.
NOTICE!
This symbol emphasizes important informaon. A non-observance may cause damage to the
device or to objects close to it.
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2. DEVICE DESCRIPTION
2.1 Introducon
S2014 is a last generaon Automac Voltage Regulator for Generators excitaon control. The unit contains the most
advanced microprocessor technology together with IGBT semiconductor technology (Insulated Gate Bipolar
Transistor).
A praccal and simple-to-operate on board panel is used for all control operaons. In addion, user friendly
soware facilitates the commissioning and allows the opmizaon of the performances.
2.2 S2014 Main Specificaons
2.3 CE / EU Compliance
This product has been evaluated and complies with the relevant essenal requirements requested by the EU
legislaon.
It complies with the following EU Direcves:
• LVD 2014/35/EU;
• EMC 2014/30/EU;
• ROHS 2 2011/65/EU.
The harmonized standards used for the evaluaon are:
• EN 50178 - Electronic Equipment for use in Power Installaons;
• EN 61000-6-4 - Electromagnec Compability (EMC), Generic Standards, Emission Standard for Industrial
Environments;
• EN 61000-6-2 - Electromagnec Compability (EMC), Generic Standards, Immunity for Industrial
Environments.
MECHANICAL DETAILS
AMBIENT CONDITION
ELECTRICAL DETAILS
Other
Weight:
Protecon class:
Dimensions (LxWxH)
Power electronics supply:
Excitaon output:
Frequency range:
Accuracy
Voltage inputs
Ambient condion
< ±0.25%
From 10 to 500 Hz
Not insulated
AVR has to be protected against dust, moisture, rain
Temperature range for operaon:
Temperature range for storage:
Vibraon:
Approx. 600 gr
IP2X (limited by fast-on type terminals)
138x58x55 mm
From -20°C to +65°C
From -40°C to +80 °C
5 mm, 2 G, 5<f<150 Hz
3±300 Vac from 10 to 500Hz
Max connuous current 8 A
Current reducon for ambient
temperatures
> 50 °C: 1 A/degree
Forcing (max 10 s): 16 A
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2.4 Overall Dimensions and Fixing Holes
2.5 Applicaon Area
This AVR is used for the excitaon of synchronous machines. This unit is suitable for this only applicaon area.
The AVR can manage several regulaons. Among them:
- Voltage regulaon;
- Field Current Regulaon (FCR);
- Power Factor regulaon (PF);
- Reacve power regulaon (VAR).
37
67
6 54
48
129
8
134
142
9
60
54 6
Ø5
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In this configuraon the AVR is powered directly from
the generator output (or from an auxiliary winding).
The AVR DC output is feeding the stator of the exciter.
In this configuraon the AVR is powered from a PMG.
The AVR DC output is feeding the stator of the exciter.
This configuraon shows a possible replacement of a
Direct Current excitaon machine.
SM: Synchronous Machine E: Exciter PMG: Permanent-Magnet-Generator D:Direct Current machine
2.6 Basic Inseron Configuraons
The following SLD show some basic inseron configuraons of the S2014.
SM E
AVR
S2014
Vsense
Ig
Power
SM D
AVR
S2014
Vsense
Ig
Power
SM
PMG E
AVR
S2014
Vsense
Ig
Power
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Note: The interface is not isolated from the power supply: in order to
connect with a pc or other devices an interface isolator must be used.
2.7 Hardware
Structure:
The device is assembled inside a plasc case with aluminum base, and it is fixed on a heat dissipater.
The connecon terminals are integrated on the top of the circuit boards.
Power electronics:
- The power circuit is designed with IGBT semiconductors.
- A fuse protects the output against short-circuits.
Control elements:
- The operang keys and the display are located on board.
- The communicaon port connector is located on the front of the AVR.
Installaon:
- The site of installaon must be dry and free of dust. The AVR can be installed in vercal or
in horizontal posion.
Mounng:
- The AVR must be installed inside the Generator or inside the control panel in order to obtain protecon
against accidental contacts. To fasten the regulator, use the 4 MA through-screws in two corners holes.
It is recommendable to use self-locking nuts. It is recommended also to bind the regulator back on a
metal plate for beer heat dissipaon.
Connecon block diagram:
2.8 Control elements and interfaces
Carrying out sengs on the unit
The displays and the four keys allow complete operaon.
All sengs can be carried out directly on the unit without addional equipment.
• Inputs and outputs configuraon;
• Parameter seng;
• Selecon on the display of the main measured values.
Interface with PC (see the dedicated chapter)
Parameter seng and opmizaon is possible using the user-friendly S2014 Config for Microso Windows. Using
an USB/RS485 cable (made by Beltrame - Oponal), with USB insulator, for the connecon between PC and AVR, is
possible to:
• Configure inputs and outputs;
• Set all parameter;
• Select on the display all the measured values;
• Download, upload, save and open config files;
• … and a lot more.
GENERATOR
Exciter field Current
transformer
Sensing Voltage
transformer
Power supply
3÷300Vac
RS-485 Port
10÷500Hz
S2014
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2.9 Terminal blocks
Overview of the device connecons:
Descripon of the terminals:
CN2 – RS 485 Serial Interface CN3 – Control connecons
1GND
GND
-RESERVED-
LINK –
LINK +
-RESERVED-
-RESERVED-
-RESERVED-
AUX
Com
Excitaon output +
Excitaon output -
Voltage sensing input
PE
2
3
4
5
6
7
8
AUX
COM
+Ecc
-Ecc
Vsense
PE
FX1 - Power connecons FX2 – Current sensing inputs
C1 Com
Increase reference adjust
Decrease reference adjust
52G status (parallel feedback)
±5V analog input
1Kohm Potenometer input
+6V Aux
N.C.
OUT (E)
OUT (C)
C.T. input S1
C2
C3
C4
C5
C6
C7
C8
C9
C10
S1
C.T. input S2
S2
Note: the reserved pins have to be le unconnected
FUSE
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3. DEVICE CONNECTIONS
3.1 Input/Output power connecon / rated data
3.2 Device connecons: CN2 Interface
Terminal designaon
Modbus RTU and proprietary
protocols
half duplex
Not isolated
from power
supply
Communicaon
CN2 picture:
Descripon Diagram
CN2 Posion
Required Qualificaon
Personnel involved in installaon work and commissioning of the S2014 must be familiar,
specially instructed and informed about the residual danger areas according to the
regulaons currently in force.
Only specially instructed personnel must carry out maintenance and repair work.
Terminal designaon
(FX1 AND FX2)
Power electronics
supply
ADC input voltage
(single-phase)
3÷300 Vac
10÷500 Hz
AUX - COM
Measurements inputs 0 ÷ 500 Vrms (sensing)
Not isolated versus the power supply (AUX)
0÷5 Arms
With galvanic isolaon
COM - Vsense
TA s1 - TA s2
Terminals Signal Specificaons
Excitaon ouput Excitaon voltage
Excitaon current
Generator voltage
Generator current
3÷200 VDC (<0.8 V )
0÷8 A (16 A for 10s)
+ECC -ECC AUX
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LINK +
LINK -
GND
S2014
CN2
5
5V
1K
1K
120
4
2
1
Ω
Ω
Ω

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3.3 Device connecons: CN3 I/O control signals
CN3 picture:
Terminal
designaon
3 programmable digital inputs
• 4mA
• Up / Down /
programmable funcon
• AVR/FCR/PF/VAR mode
CN3 Digital inputs
Descripon Diagram
N.1 programmable digital output
Max Load 65mA 24Vdc
CN3 Digital outputs
Not isolated
from power
supply
2x Analog inputs
Analog input: ± 5V Potenometer input: 1kohm
Not isolated
from power
supply
Ω
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S2014 CN3
COM
Increase
Decrease
Parallel feedback
Analog In
Potentiometer adjust
+6V AUX
N.C.
COM
Increase
Decrease
Parallel feedback
Analog In
Potentiometer adjust
+6V AUX
N.C.
COM
Increase
Decrease
Parallel feedback
Analog In
Potentiometer adjust
+6V AUX
N.C.
OUT (E)
OUT (C)
S2014 CN3
+24Vdc
GND
S2014 CN3
+24Vdc
GND
S2014 CN3 S2014 CN3
± 5V
1k
COM
Increase
Decrease
Parallel feedback
Analog In
Potentiometer adjust
+6V AUX
N.C.
COM
Increase
Decrease
Parallel feedback
Analog In
Potentiometer adjust
+6V AUX
N.C.
OUT (E)
OUT (C)
OUT (E)
OUT (C)
OUT (E)
OUT (C)
OUT (E)
OUT (C)

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4. OPERATING MODES
S2014 allows bump less changeover between all operaon modes:
Automac voltage regulator (AVR)
It regulates the output voltage of the synchronous machine.
Note: Output Generator Current measurement is oponal: it is
used only for droop compensaon
Field Current Regulaon (FCR)
It regulates the excitaon (field) current of the synchronous
machine.
This operaon mode is quite useful during commissioning and/or
troubleshoong.
PF or Var regulaon (PF, Var)
Regulates the power factor or reacve power of the
synchronous machine.
Note: these funcons are available only if the machine
is working in parallel (and with closed 52G signal)
SM E
PID
PF
kVar
SM E
PID
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5. FUNCTIONS DESCRIPTION
5.1 So Start
Seng the following parameters, it is possible to set up the excitaon ramp of the Generator (Output Voltage vs Time):
Parameter Descripon (short) Descripon
P.100
R.002
Gen rated voltage
Ramp slope
Generator rated voltage [V]
Ramp slope [%/s]
The slope of the ramp is controlled by the V/Hz limiter.
The so start funcon is working only in the AVR mode.
5.2 Compensaon and Droop funcons
The compensaon funcon (K> 0) is used in order to reduce the voltage drop created by the possible presence of a power transformer
mounted aer the Generator.
The ‘droop’ funcon (K<0) is recommendable in case of operaon with more generators in parallel. It applies a machine output voltage
reducon according to the reacve power output. The “droop” funcon reduces the output voltage according the reacve power output
(higher is the reacve power, lower will be the output voltage).
Compensaon and droop funcons require:
- AVR mode
- alternator current reading
- digital input 3 programmed as I002= 4 (52G closed + Droop regulaon)
Parameter Descripon (short) Descripon
P.400 Voltage comp K Voltage comp [%]
Machine voltage (%)
P101
P100
(S)
Machine voltage
(%)
Kq = 1,5%
Kq = -1,5%
Reacve power
(%)
100%
inducve
100%
capacive
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Parameter Descripon (short) Descripon
P.250
P.130
Keep Alive min I
Gen. V/f min freq
% of the rated exc current (P.000) from 0Hz to P.130 Hz
Generator minimum frequency (Hz)
5.3 Keep Alive
This feature helps/allows the self-excitaon of the Generator in case the AVR input power line is connected to the generator terminal or to a
generator auxiliary winding.
With “keep alive” enabled (P.250>0), the S2014 will try to keep a minimum excitaon current during the start-up.
As default P.250 is adjusted to 5. This means that the S2014, during the start-up, will try to keep the excitaon current to 5% of the rated
excitaon current (P.000). Once the frequency will be higher the P.130 (Generator minimum frequency), the AVR will leave the “keep alive”
area and will enter in the V ramp area.
In case the AVR is powered with a PMG or with an external power source the “Keep Alive” funcon has to be disabled (set P.250=0).
Above screenshot shows the keep alive funcon effect during generator shung down. Once the frequency drops below P.130 the AVR
acvates the keep alive funcon and works in order to maintain the excitaon current to the P.250 keep alive seng (in this case 5%)
(Hz)
P.130
Keepalive
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5.4 Limiters
5.4.1 V/F Limiter
The V / Hz limit is acve during the voltage control phase. It works by liming the Generator voltage as the frequency falls below the
maximum frequency P.131. This operaon can avoid the Generator over-flushing in case of a reducon of speed.
5.4.2 Minimum excitaon current: Under Excitaon limiter
The limit of minimum excitaon current is only acve when the Generator is in parallel [digital input 52G (machine in parallel) closed].
It represents the minimum excitaon current below which the Generator cannot work.
The relaon between output voltage and frequency is:
V(Hz) = P. 100
*Hz
P.131 *1
P.132
Parameter Descripon (short) Descripon
P.100
P.130
P.131
Gen. rated voltage
Gen. V/f Min freq
Gen. V/f Max freq
Generator rated voltage [V]
Generator minimum frequency ramp (Hz)
Generator maximum frequency ramp (Hz)
P.132 V/f slope Generator V/f slope
Parameter Descripon (short) Descripon
P.002
r.900
r.901
F. UE Lim
OE/UE Lim reg KP
OE/UE Lim reg TI
OE/UE Lim reg TI
OE/UE Lim. Reg. KP
OE/EU Lim. Reg. TI
Machine voltage (%)
Gen. rated V
P. 132
min
freq
max
freq
Gen rated
freq
(Hz)
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Motor
Generator
Q+ (var)
overexcited
underexcited
Iemin
Q-
P (w)

17
5.4.3 Maximum excitaon current: Over Excitaon limiter
The limit of maximum excitaon current operates a limitaon on the maximum excitaon current.
The limit works in order to avoid to overtake the P.001 value, and if the excitaon current remains on P.001 for longer than P.032, the AVR
reduce the excitaon current to 102%. If the excitaon current goes in the area between P.000 and P.001, the AVR calculate the i*t integral
and once P.001xP.032 is reached, the AVR reduces the excitaon current to P.000.
5.4.4 Minimum capability: Q- limiter
The curve of minimum capability represents the reacve power limit absorbed by the machine. It is determined by interpolang 5 data:
Parameter Descripon (short) Descripon
P.100
P.130
P.131
Gen. rated voltage
Gen. V/f Min freq
Gen. V/f Max freq
Generator rated voltage [V]
Generator minimum frequency ramp (Hz)
Generator maximum frequency ramp (Hz)
P.132 V/f slope Generator V/f slope
P.132 V/f slope Generator V/f slope
Parameter Descripon (short) Descripon
P.160
P.161
P.162
Q – lim @ P 0%
Q – lim @ P 25%
Q – lim @ P 50%
Limit Q- a P=0%
Limit Q- a P=25%
Limit Q- a P=50%
P.163
P.164
Q – lim @ P 75%
Q – lim @ P 100%
Limit Q- a P=75%
Limit Q- a P=100%
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(%)
P.001
P.000
D.000
P.032 (S)
Motor
Generator
Q+ (var)
overexcited
underexcited
Q-
P (w)
100%
100%
75%
75%
50%
50%
25%
25%
0%

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5.4.5 Maximum capability: Q+ limiter
The curve of maximum capability represents the reacve power limit delivered by the machine. It is determined by interpolang 2 data:
• Q+ limit a P=0% P.170 [%]
• Q+ limit a P=100% P.171 [%]
5.4.6 S2014 Config: Limits status
The S2014 Config soware reports an overview of the limiters status:
The reported limiters status shows that the V/Hz (underfrequency or underspeed limiter) is acve.
Parameter Descripon (short) Descripon
P.170
P.171
Q + lim @ P 0%
Q + lim @ P 100%
Limit Q+ a P=0%
Limit Q+ a P=100%
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Q+ (var)
overexcited
underexcited
Q-
P (w)
P=100%
P=100%
Motor
Generator
P=0%
P.171

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1. AVR [Automac Voltage Regulator]
2. FCR [Field Current Regulaon]
3. PF/VAR [Control]
6. WORKING MODE AND REGULATIONS
Basically, there are 4 working modes (4 regulaon mode):
- AVR [Automac Voltage Regulator]: S2014 works in order to keep the output voltage to the ref value
- FCR [Field Current Regulaon]: S2014 works in order to keep the excitaon current to the ref value
- PF Control [Power Factor Regulator]: S2014 works in order to keep the PF to the ref value
- VAR Control [Reacve Power Regulator]: S2014 works in order to keep the Reacve Power to the ref value
P.100 +
-
FBK
r.350
r.350/r.351 1/s
Reference of
the voltage
excitaon
r. 000 +
-
FBK
r.250
r.250/r.251 1/s
SCR%
r. 401
r. 400
+
-
FBK
r.450
r.450/r.451 1/s
Reference of
the voltage
alternator
BELTRAME
CENTRO SERVIZI ENERGIA