Nidec Leroy-Somer D510 C Instruction Manual

D 510C
X2 Z1 X1 Z2 F+ F- L1 L2 U V W
W V U
+10V -
A|1 -
A|2 -
0V -
A01 -
0V -
D|1 -
D|2 -
0V -
D01 -
AL.1 -
AL.2 -
Hz
Volt
Exc.
Fault
Manu
PF
U = U
Power
USB
+ -
D510 C
Digital voltage regulator
Installation and maintenance

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Installation and maintenance
D510 C
Digital voltage regulator
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SAFETY MEASURES
Before using your machine for the rst time,
it is important to read the whole of this
installation and maintenance manual.
All necessary operations and interventions
on this machine must be performed by a
qualied technician.
Our technical support service will be pleased
to provide any additional information you
may require.
The various operations described in this
manual are accompanied by recommenda-
tions or symbols to alert the user to potential
risks of accidents. It is vital that you under-
stand and take notice of the following war-
ning symbols.
Warning symbol for an operation capable
of damaging or destroying the machine
or surrounding equipment.
Warning symbol for general danger to
personnel.
Warning symbol for electrical danger to
personnel.
All servicing or repair operations perfor-
med on the AVR should be undertaken by
personnel trained in the commissioning,
servicing and maintenance of electrical
and mechanical components.
When the generator is driven at a
frequency below 28 Hz for more than 30
seconds with an analogue AVR, its AC
power supply must be disconnected.
WARNING
This AVR can be incorporated in a EC-
marked machine.
This manual is to be given to the end
user.
© - We reserve the right to modify the
characteristics of this product at any time in
order to incorporate the latest technological
developments. The information contained in
this document may therefore be changed
without notice.
This document may not be reproduced in
any form without prior authorisation.
All brands and models have been registered
and patents applied for.
WARNING
This manual concerns the alternator AVR which you have just purchased.
We wish to draw your attention to the contents of this maintenance manual.

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Digital voltage regulator
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CONTENTS
1 - PRESENTATION ................................................................................................................5
1.1 - Operation .....................................................................................................................5
1.2 - Characteristics .............................................................................................................9
1.3 - Specications...............................................................................................................9
2 - HUMAN-MACHINE INTERFACE ..................................................................................... 11
2.1 - Communication.......................................................................................................... 11
2.2 - Analog I/O .................................................................................................................. 11
2.3 - Digital I/O ................................................................................................................... 11
2.4 - The LEDs ................................................................................................................... 11
2.5 - Wiring scheme ...........................................................................................................12
3 - SETTING THE FUNCTION PARAMETERS .....................................................................13
3.1 - Installation..................................................................................................................13
3.2 - Startup .......................................................................................................................13
3.3 - Appearance................................................................................................................13
3.4 - Conguration in customised mode .............................................................................42
3.5 - Advanced Grid code function......................................................................................45
3.6 - Dead bus synchronization..........................................................................................46
4 - CONNECTION DIAGRAMS .............................................................................................48
5 - DIMENSIONS AND MOUNTING ......................................................................................49
5.1 - Top view .....................................................................................................................49
5.2 - Side view....................................................................................................................49
6 - FAULT FLOW CHARTS ...................................................................................................50
7 - SPARE PARTS.................................................................................................................60
7.1 - Designation................................................................................................................60
7.2 - Technical support service...........................................................................................60
Disposal and recycling instructions
The temperature can more than 70°C in surface, the product must be place inside the
terminal box or an electrical panel.
The AVR is IP00, it must be incorporated in an environment which ensures it a IP20
protection.

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Digital voltage regulator
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General description
This manual describes how to install, use, set up and maintain the D510 C AVR.
The purpose of this AVR is to regulate alternators with a eld current of less than 6 A in
continuous operations, and 15 A maximum in the event of short-circuit for 10 seconds
maximum.
It is designed for mounting in a generator terminal box or a control cabinet. It must be installed
in compliance with local protection and safety standards, especially those specic to electrical
installations with a maximum voltage of 300VAC phase/neutral.
It is an electronic card molded in a polyurethane resin.
EasyReg software
The D510C must be congured using the dedicated EasyReg software (only compatible with
PCs). The EasyReg software is available on the Leroy-Somer website:
www.leroy-somer.com/epg
Scan the code or go to http://lrsm.co/d510
to access product documentation and software.

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Digital voltage regulator
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1 - PRESENTATION
1.1 - Operation
A schematic diagram of the D510C appears below.
˜
=
˜
=
˜
=
µC
PID
DSP
trans-
ceiver
µP
X1 Z1 X2 Z2 B+ B-
U
V
W
IU
IV
IW
L1
L2
F+
USB
F-
CAN-H
CAN-L
PT100/CTP
PT100
PT100
DI1 DI2
AI 1 AI 2
supply

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Terminals Signals Scheme
X1
X2
Z1
Z2
Power supply
- Auxiliary winding input
- PMG input
- SHUNT input
D510C
X1 A
B
b1
b2
A
B
X2
Z1
Z2
L1
L2
Mains voltage measurement
8M Ω
8M Ω
U
V
W
Alternator voltage measurement
For single-phase: use V and W
8M Ω
8M Ω
8M Ω
8M Ω
CT
+15V
-15V
+15V
-15V
+15V
-15V
Alt
IU = (s1, s2)
IV = (s1, s2)
IW = (s1, s2)
Alternator current measurement
AI1
AI2
Analog inputs:
External setting
4-20mA
POT
0-10V
500Ω
332Ω
210kΩ
+33V
0V
DI1
DI2
Digital inputs:
U=U and PF/kVAR regulation
DI1/DI2
2k21
+15V
0V
10k
B+
B-
DC power supply
B+
B- D510C
1A or 5A
AI1 or AI2
Mains
up to
180V
up to
530V
11V to
30V

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Digital voltage regulator
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Terminals Signals Scheme
F+
F-
Field excitation: 6 A
up to 15 A/10 s F+
F- Exciter
CTP
PT100_1
PT100_2
PT100-3
Temperature sensors
± 5V
4k75
PT100 - CTP
+5 V
100nF
CAN_H
CAN_L CAN BUS µP
CAN
Transceiver
H
L
USB_D+
USB_D-
USB 2.0 communication port
µP
USB
Controller
D-
D+
+5 V
0V

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• Power: It varies according to the type of
eld excitation (3 types).
- AREP: The AVR is powered by two auxiliary
windings which are independent of the
voltage sensing circuit.
The rst winding has a voltage in proportion
with that of the alternator and the second
has a voltage in proportion with the stator
current.
- PMG: A permanent magnet generator
(PMG) added to the alternator supplies the
AVR with voltage which is independent of
the main alternator winding.
- SHUNT: The AVR is powered by the main
winding (140 V – 50/60 Hz).
Two fuses 10A/250VAC, Ref. Mersen:
E084414P - MI6SA25V10/50 or
equivalent, mounted externally of the
D510C must be used in the three types of
excitation.
• Battery: This is used to supply the AVR
with between 11 V and 30 V. It must always
be present.
The battery supply must be
protected by a 1 A Ref. Mersen :
A217028Q - GDL1 or equivalent fuse.
• Mains: This input is dedicated to the
measure phase-to-phase mains voltage
which will be taken as the reference when
voltage matching is performed.
• Alternator voltage: This input measures
the alternator output voltage to the AVR in:
- three-phase (U, V, W)
- single-phase (V, W)
• Current transformer(s): This input
measures the current supplied by the
alternator. It must always be present when
the alternator is running in parallel operation
or at PF or KVAR regulation or stator current
limitation.
• The possible congurations are:
- 1 CT on phase U
- 3 CTs on phases U, V and W
• Temperature sensor(s): These are used
to measure the alternator temperature and
alert the user if there is a rise in temperature.
This measurement can be taken either with
1 PTC or 3 PT100s.
• Communication:
- USB port: This is used to connect the AVR
to a computer and creates the link between
the EasyReg software and the D510C.
- CAN port: This is used to connect the AVR
to a bus CAN interpreter in order to exchange
parameters with the D510C.
• I/O: This part is used to:
- Enter settings
- Send information from the D510C
- Receive information from the alternator
• LEDs: These light-emitting diodes inform
the user whether the AVR is working
correctly or not.

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1.2 - Characteristics
The different functions of the D510C are:
- Voltage regulation
- Regulation of the power factor (PF)
- Regulation of the reactive power
- Manual regulation (Iexc)
• Voltage regulation: The D510C regulates
the alternator output voltage. Regulation is
applied to the mean value or the true rms
value (TRMS).
• Regulation of the power factor: The
D510C regulates the power factor. This is
the ratio between the active power
(P = √3*U*I*cos φ) and the apparent power
(S = √3*U*I).
- Inductive P.F. [0; π/2] means that the
current is lagging behind the voltage. The
load is inductive (induction motor,
transformer, etc).
- Capacitive P.F. [π/2; π] means that the
current is leading the voltage. The load is
capacitive (uorescent lighting, etc).
• Regulation of the reactive power:
The D510C regulates the reactive power
(Q = √3*U*I*sin φ) at a xed value.
• Manual regulation: The D510C can
regulate the excitation current.
These functions are selected when setting
the AVR parameters.
1.3 - Specications
1.3.1 - Characteristics
Name Minimum value Maximum value Adjustable
Battery power supply 11 V 30 V -
Alternator frequency 10 Hz 100 Hz Yes
Mains frequency 10 Hz 100 Hz -
Single-phase mains voltage 50 V 530 V -
Mains voltage ratio 1 100 Yes
Excitation current 0 A 6 A -
Max. excitation current 0 A 15 A/10s -
Single-phase alternator voltage 0 V 530 V -
Three-phase alternator voltage 0 V 530 V -
Alternator current input 1 A 5 A Yes
Alternator I u 0 A 5000 A -
Alternator I v 0 A 5000 A -
Alternator I w 0 A 5000 A -

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Name Minimum value Maximum value Adjustable
LAM knee-point 37 Hz*100 Hz*Yes*
Adjustable LAM 70% of
Voltage reference
100% of
Voltage reference Yes
Variable U/F 1.0 3.0 Yes
Voltage reference setpoint 90 V 530 V** Ye s
Adjustment of external accuracy - 10%*** + 10%*** Yes ***
Quadrature droop 0% + 10% Ye s
Soft start acceleration 0.1 s 120 s Yes
Loading acceleration 0.1 s/10 Hz 30.0 s/10 Hz Yes
Voltage drop compensation 0% 10% Yes
Excitation current manual reference 0 A 10 A Yes
Rated cosine P. F. -0.6 (LEAD) +0.6 (LAG) Limited by settings
kVAR -100% +100% Limited by settings
Proportional action 0* 1500* Yes*
Integral action 0* 200* Yes*
Derivative action 0* 12000* Yes*
Loop gain 0* 100* Yes*
Scale 1/50* 1/1* Yes*
* in expert mode - ** without voltage transformer - *** 30% in expert mode
1.3.2 - Status and faults
Name Minimum value Maximum value Adjustable
Short-circuit delay 0.5s 10s no
Short-circuit excitation
current demand 0A 10A no
Underexcitation delay 0.1s 5.0s no
I EXC SHUT down 0A 5A no
Overvoltage time 0s 100s no
Overvoltage threshold 0% 120% no
PT100 temperature 0°Celsius 250°Celsius no
PT100 temperature threshold 50°C 200°C no
PTC input 0% 100% no
1.3.3 - Environments
Storage temperature: -55°C +85°C
Operating temperature: -40°C +65°C

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2 - HUMAN-MACHINE INTERFACE
The D510C human-machine interface
consists of 3 elements:
- The USB link
- The I/O
- The LEDs
D 510C
X2 Z1 X1 Z2 F+ F- L1 L2 U V W
W V U
+10V -
A|1 - A|2 -
0V -
A01 -
0V -
D|1 - D|2 -
0V -
D01 -
AL.1 - AL.2 -
Hz
Volt
Exc.
Fault
Manu
PF
U = U
Power
USB
+ -
2.1 - Communication
USB link
The EasyReg software and the D510C
communicate via a USB cable (Universal
Serial Bus).
Warning: In SHUNT operation,
please use a USB isolator to connect the
PC to the D510C.
Do not connect the USB during the
starting if the DC supply of the AVR is
switched off.
2.2 - Analog I/O
This part of the board allows the operator to
use the inputs to make manual settings and
the outputs to check certain data or to
indicate whether certain AVR functions are
working correctly or not. An external voltage
(0 V – 10 V) is present which can be used as
a reference for an electronic device.
The minimum analogic input setting is 0%
and the maximum is 100%.
External by setting is either:
- from an external potentiometer (1k Ω),
- 4 - 20 mA,
- 0 - 10 V.
The two analog inputs can also be used to
achieve digital functions + / -.
NB : Make sure that the voltage applied on
analogue input does not exceed 10V. For
applications requiring the use of +/-10V, the
D510C must be congured as 0-10V and the
following schematic must be used.
D510C
DC Source
± 10V
+10V
10kΩ
10kΩ
+
-
AI1
0V
2.3 - Digital I/O
E/S Type Characteristics
DI1Pull up input To be connected
to 0V
DI2
DO1Opened collector Max current: 60mA
Voltage: 0 - 24V
DO2Dry contact 6A, 30Vdc/250V AC
(on resistor)
AL1Opened collector Max current: 60mA
Voltage: 0 - 24V
AL2
2.4 - LEDs
The LEDs serve to inform the user whether
the AVR is working correctly or not.
USB port
I/O
LEDs
Connect to the PC Connect to the D510C

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1
2
3
4
5
6
7
8
Installation and maintenance
D510 C
Digital voltage regulator
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Name Colour Meaning
Power ON Green The board is supplied with power
↓ Hz Red Speed drop
↑ / ↓ Volt Red Problem of overvoltage or undervoltage
↑ / ↓ Exc. Red Problem of overexcitation or underexcitation
Fault Red Problem on the exciter eld diode bridge
Manu Yellow Manual mode enabled
PF / KVAR Yellow Regulation of the power factor or reactive power enabled
U = U Yellow Alternator voltage = Mains voltage
USB Blue AVR connected to a PC
2.5 - Wiring scheme
AVR connections
1/ Power:
- AREP: Yellow wire on X2 - red wire on
Z1 - green wire on X1 - black wire on Z2
- PMG: X2, X1 and Z2
- SHUNT: X1 and X2
2/ Field excitation:
- the eld winding + to the terminal F+
- the eld winding - to the terminal F-
3/ Battery: ensure the polarity is correct
when connecting
4/ Voltage sensing:
- mains voltage: L1 and L2
- alternator voltage:
• single-phase: V and W
• three-phase: U, V and W
5/ Current transformer(s):
- placing in parallel and measurement:
CT on U
- measurements: CTs on V and W
6/ Temperature sensor:
- PTC: see mounting above
- PT100: see mounting above
7/ USB port
8/ Digital I/O

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Digital voltage regulator
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3 - SETTING THE FUNCTION
PARAMETERS
EasyReg is a Leroy Somer Software which
allows to :
- Easily congure the digital regulator D510C
- Monitor several important parameters
such as alternator output voltage, excitation
current, active and reactive power, etc…
- Optimize the regulation loop
- Set the AVR parameters.
- Congure the inputs and outputs.
- Display faults and parameter measure-
ments.
It is the interface between the user and the
digital AVR.
3.1 - Installation
Double click on the installer EasyReg and
follow the installation instructions.
3.2 - Startup
Connect the AVR to the computer with a
USB cable. Check that the blue «USB» LED
is on.
To start the software, go to «Start»,
«Programs» then «EasyReg».
3.3 - Appearance
The regulator is connected to the PC via standard USB cable, the blue LED (labeled LED) of the
regulator is then ON and the information « D510C CONNECTED » is displayed on the screen
left bottom.

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Digital voltage regulator
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There are four options when using this software:
- New conguration
- Open a conguration from a le
- Open a conguration from the pre-programmed AVR.
- Create customised conguration (Expert mode)
If the AVR is not connected or has never been congured, it is impossible to «Open from a
D510C».
PROPERTIES
The user can choose to lock the regulator to avoid the conguration modication. In that case,
the conguration description and a lock code must be entered. In customised mode, only the
lock code can be entered.
PRINT
The conguration can be edited in a Word or PDF format le.
3.3.1 - Languages and modes
3.3.1.1 - Languages
Three languages are available on EasyReg: French , English and German.

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3.3.1.2 - Modes
Two operation modes are possible:
- Standard mode by default
- Expert mode which offers additional functions
This mode is reserved for users who possess the skills to make certain more complex adjustments
or to use the AVR in a wider range of operating conditions.
If you require the Expert mode access code, please use the main menu: click on « ? » then «
About… ». The following window is displayed.
Click on« Copy code » and email the PC code to: LS-SillacT[email protected].
The access code will be sent you back.
Incorrect settings can harm the AVR and the alternator and can cause serious
damage (to users, loads).
3.3.2 - Saving and loading the conguration
Save your conguration (for the 1st time):
- Go into the «File» menu and click «Save As»
- Choose where you wish to save to
- Name your saved conguration
- Click Save As
Subsequently, to save the conguration, you just need to go into the «File» menu and click
«Save».

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Send the conguration to the AVR:
- check that the AVR is connected correctly
(blue LED on) at the bottom left-hand side of
the screen.
- go into the «Edit» menu.
- Go to : • PC --> D510C
• D510C --> PC
- click « PC −> D510C ».
Wait for loading to complete.
3.3.3 - New conguration
There are two possible conguration levels:
standard or expert.
By default, the software is in standard mode.
The AVR is programmed step by step. Access
to the «Regulation Mode» page is only
possible if the «Alternator Conguration»
page has been lled in. The program is
transferred to the D510C via the «Edit» menu
then «PC => D510C» or by pressing F10 on
the keypad.
This software must be used in the order
indicated below:
1. Alternator conguration
2. Regulation mode:
- Voltage regulation
- Underspeed settings
- Other types of regulation (PF, reactive
power, manual) depending on the user’s
selections.
3. Faults and digital outputs
4. Monitors
3.3.3.1 - Alternator Conguration
Open «New conguration» from the menu bar, which takes you to the «Alternator Conguration»
window. The parameters for this page are set in two parts: Alternator, Options.
The wiring scheme varies according to the characteristics specied by the user.

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• Alternator
In the dropdown lists or boxes, select:
1. The type of alternator
2. The length
3. The type of eld excitation
4. The frequency
5. The number of stator outputs
6. The stator connections
7. The voltage sensing
(single or three-phase)
Note: The information relating to items 1, 2, 3 and 4 can be found on the nameplate.
[Expert mode]: the alternators list is more expanded. In this mode it is also possible to select the
Service, the temperature rise class and the alternator power.
Note: FF and G electrical connections are dedicated to single phase application, no three-
phase sensing is possible.
Stator connections: Click on the question mark to get help on the stator connections.
The alternator conguration is recalled at the screen left bottom.
1
2
3
4
5
6
7

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• Options To obtain the following options, tick the boxes:
1. Temperature sensors, select either 1 PTC
or 3 PT100s.
2. Current transformers (CTs), select the
number (1 or 3), the measurement (IN, IN/2 or
IN/4) and the ratio. unless one CT is mandatory
for parallel operation, PF or kVAR regulation,
stator over current, unbalenced current.
3. Alternator voltage transformer, enter the
voltage values at the primary and at the
secondary if a transformer is connected..
4. Bus voltage transformer, enter the voltage
values at the primary and at the secondary if a
transformer is connected.
5. Step-up transformer, ll the values of
primary and the secondary.
The electrical schematic below shows how the «wiring scheme» part changes according to the
parameters selected.
After entering the data in this page, go to the second page by clicking «Next». In some cases,
you will need to adjust the workscreen in order to access the «Next» button.
1
2
3
4
5

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3.3.3.2 - Regulation mode
After entering the «Alternator Conguration» part settings, ll in the «Regulation Mode» part.
4 types of regulation are offered:
- Voltage
- Power factor (PF)
- Reactive power (kVAR)
- Manual Mode
Always setting begins with voltage regulation.
Caution, regulation of the reactive power PF and the quadrature droop can only be
enabled if there is a CT on phase U and it has been selected.

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A - Voltage regulation
This page consists of two parts :
- Voltage Regulation
- Underspeed settings
Setting the parameters for this part starts with the «Voltage regulation» page and ends with the
«Underspeed settings» page.
A1 - Voltage regulation
This page is split into two parts:
- Settings
- Options
A1.1 - Settings
1. The displayed value comes from
Easyreg® database. It can be adjusted in
the range ± 10% maximum.
Expert Mode: The adjustment range can be
extended to ± 30%.
1
2
3