Leroy-Somer D500 Instruction Manual

This manual is to be given
to the end user
D500
Automatic Voltage Regulators (AVRs)
Installation and maintenance
˜=
˜=
˜=
µC(XC 164CS)
PID
DSP
trans-
ceiver
µP
X1 Z1 X2 Z2 B+ B-
U
V
W
IU
IV
IW
L1
L2
F+
F-
D+
D-
H
L
PT100/CTP
PT100
PT100
DI1 DI2
AI 1 AI 2
4243 en - 2009.09 / a

Installation and maintenance
D500
Automatic Voltage Regulators (AVRs)
2
4243 en - 2009.09 / a
LEROY-SOMER
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 interventions described in
this manual are accompanied by
recommendations or symbols to alert the
user to potential risks of accidents. It is vital
that you understand and take notice of the
various warning symbols used.
This AVR can be incorporated in a
CE‑marked machine.
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.
Note: LEROY-SOMER reserves the right
to modify the characteristics of its products
at any time in order to incorporate the
latest technological developments. The
information contained in this document may
therefore be changed without notice.
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. By following
certain important points during installation, use and servicing of your alternator, you can
look forward to many years of trouble‑free operation.
SAFETY MEASURES

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Installation and maintenance
D500
Automatic Voltage Regulators (AVRs)
4243 en - 2009.09 / a
LEROY-SOMER
CONTENTS
1 ‑ PRESENTATION ................................................................................................................4
1.1 - Operation .....................................................................................................................4
1.2 - Characteristics .............................................................................................................8
1.3 - Specications...............................................................................................................8
2 ‑ HUMAN‑MACHINE INTERFACE .....................................................................................10
2.1 - Communication..........................................................................................................10
2.2 - The I/O .......................................................................................................................10
2.3 - The LEDs ...................................................................................................................10
2.4 - Wiring scheme ........................................................................................................... 11
3 ‑ SETTING THE FUNCTION PARAMETERS .....................................................................12
3.1 - Installation..................................................................................................................12
3.2 - Startup .......................................................................................................................12
3.3 - Appearance................................................................................................................12
4 ‑ CONNECTION DIAGRAMS .............................................................................................46
5 ‑ FAULT FLOW CHARTS ...................................................................................................48
All servicing or repair operations performed on the AVR should be undertaken by
personnel trained in the commissioning, servicing and maintenance of electrical and
mechanical components.
Copyright 2009: MOTEURS LEROY-SOMER
This document is the property of:
LEROY-SOMER.
It may not be reproduced in any form without prior authorisation.
All brands and models have been registered and patents applied for.

Installation and maintenance
D500
Automatic Voltage Regulators (AVRs)
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LEROY-SOMER
PRESENTATION1 ‑
Operation1.1 ‑
A schematic diagram of the D500 appears below.
˜=
˜=
˜=
µC(XC164CS)
PID
DSP
trans-
ceiver
µP
X1 Z1 X2 Z2 B+ B-
U
V
W
IU
IV
IW
L1
L2
F+
F-
D+
D-
H
L
PT100/CTP
PT100
PT100
DI1 DI2
AI 1 AI 2

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Installation and maintenance
D500
Automatic Voltage Regulators (AVRs)
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LEROY-SOMER
Terminals Signals Scheme
X1
X2
Z1
Z2
Power supply
- Auxiliary winding input
- PMG input
- SHUNT input
D500
X1 A
B
b1
b2
A
B
X2
Z1
Z2
Up to
230V
L1
L2
Mains voltage measurement
8M Ω
8M Ω
MAIN
U
V
W
Alternator voltage measurement
For single-phase: use V and W
Alt
8M Ω
8MΩ
8M Ω
8M Ω
CT
1A or 5A 0.02 ± 5V
± 15V
± 15V
IU = (s1, s2)
IV = (s1, s2)
IW = (s1, s2)
Alternator current measurement
AI1
AI2
Analogue inputs:
External setting
POT
4-20mA
0-10V
± 10V
AI1 or AI2
500Ω
866Ω
210kΩ
10kΩ
±26V
10
DI1
DI2
Digital inputs:
U=U and PF/kVAR regulation
DI1/DI2
2k21
+15V
0V
10k
B+
B-
DC power supply
B+
B-
11V to
30V
D500

Installation and maintenance
D500
Automatic Voltage Regulators (AVRs)
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Terminals Signal Scheme
F+
F-
Field excitation:
up to 10 A
F+
F- Exciter
PTC
PT100_1
PT100_2
PT100-3
Temperature sensor
± 5V
4k75
PT100 - CTP
+5 V
100nF
CAN_H
CAN_L
Optional:
CAN
µP
CAN
Transceiver
H
L
USB_D+
USB_D-
USB 2.0 communication port
µP
USB
Controller
RX
TX
D-
D+
+5 V
Read
475
MISO
4.7µF
0V

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Installation and maintenance
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Automatic Voltage Regulators (AVRs)
4243 en - 2009.09 / a
LEROY-SOMER
• Power: It varies according to the type of
eld excitation (3 types).
-AREP:TheAVR is poweredby 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).
• Battery: This is used to supply the AVR
with between 12 V and 30 V. It must always
be present.
• Mains: This input is dedicated to the
phase-to-phase mains voltage which will be
taken as the reference when voltage
matching is performed.
• Alternator voltage: This sends 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.
• 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 D500.
- CAN port: This is used to connect the AVR
to a computer and creates the link between
the EasyReg software and the D500.
The CAN link is only available in the
CAN version identied by the letter C
(eg: D510-C).
• I/O: This part is used to:
- Enter settings
- Send information from the D500
- Receive information from the alternator
• LEDs: These light-emitting diodes inform
theuserwhethertheAVRisworkingcorrectly
or not.

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Automatic Voltage Regulators (AVRs)
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Characteristics1.2 ‑
The different functions of the D500 are:
- Voltage regulation
- Regulation of the power factor (PF)
- Regulation of the reactive power
- Manual regulation (Iexc)
• Voltage regulation: The D500 regulates
the alternator output voltage. Regulation is
applied to the mean value or the true rms
value (TRMS).
• Regulation of the power factor: The
D500 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 cos φ [0; π/2] means that the
current is lagging behind the voltage. The
load is inductive (induction motor,
transformer, etc).
- Capacitive cos φ [π/2; π] means that the
current is leading the voltage. The load is
capacitive (uorescent lighting, etc).
• Regulation of the reactive power:
The D500 regulates the reactive power
(Q = √3*U*I*sin φ) at a xed value.
• Manualregulation:TheD500canregulate
the voltage manually by altering the value of
the excitation current.
These functions are selected when setting
the AVR parameters.
Specications1.3 ‑
Characteristics1.3.1 ‑
Name Minimum value Maximum value Adjustable
Battery power supply 11 V 30 V
Alternator frequency 10 Hz 100 Hz Yes
Mains frequency 5 Hz 100 Hz
Single-phase mains voltage 50 V 600 V
Mains voltage ratio 1 100 Yes
Excitation current 0 A 6 A
Max. excitation current 0 A 10 A
Single-phase alternator voltage 0 V 341 V
Three-phase alternator voltage 0 V 600 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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Installation and maintenance
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Automatic Voltage Regulators (AVRs)
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Characteristics1.3.2 ‑
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 690 V Yes
Adjustment of external accuracy - 10%* + 10%* Yes*
Quadrature droop 0% + 10% Yes
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 -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*
* ± 30% in expert mode
Status and faults1.3.3 ‑
Name Minimum value Maximum value Adjustable
Short-circuit delay 0.5 s 10 s
Short-circuit excitation
current demand 0 A 10 A
Underexcitation delay 0.1 s 5.0 s
I EXC SHUT down 0 A 5 A
Overvoltage time 0 s 100 s
Overvoltage threshold 0% 120%
PT100 temperature 0°Celsius 250°Celsius
PT100 temperature threshold 50°C 200°C
PTC input 0% 100%

Installation and maintenance
D500
Automatic Voltage Regulators (AVRs)
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LEROY-SOMER
HUMAN‑MACHINE INTERFACE2 ‑
The D500 human-machine interface
consists of 3 elements:
- The USB link
- The I/O
- The LEDs
Communication2.1 ‑
USB link
The EasyReg software and the D500
communicate via a USB cable (Universal
Serial Bus).
I/O2.2 ‑
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 power
supply (0 V – 10 V) is present which can
supply an external component (bulb, alarm,
etc).
The minimum input setting is 0% and the
maximum is 100%.
External setting is either:
- from an external potentiometer
- 4 - 20 mA
- 0 - 10 V
- ± 10 V
Scaling:
(AVR part)
yx Formula
x Formula y
4 – 20 mA A * x + B = y
A = 6250 and B = -25 0 – 100%
0 – 10 V A * x + B = y
A = 10 and B = 0 0 – 100%
-10 – 10V A * x + B = y
A = 5 and B = 50 0 – 100%
LEDs2.3 ‑
The LEDs serve to inform the user whether
the AVR is working correctly or not.
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
USB port
I/O
LEDs
Connect to the PC
Connect to the D500

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Installation and maintenance
D500
Automatic Voltage Regulators (AVRs)
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LEROY-SOMER
Wiring scheme2.4 ‑
AVR connections:
Power:
- AREP: Yellow wire on X1 - red wire on Z1 - green wire on X2 - black wire on Z2
- PMG: X2, X1 and Z2
- SHUNT: X1 and X2
 Field excitation: The eld winding + to the terminal F+
The eld winding - to the terminal F-
Battery: Ensure the polarity is correct when connecting
Voltage sensing:
- Mains voltage: L1 and L2
- Alternator voltage: - single-phase: V and W
- three-phase: U, V and W
 Current transformer(s):
- Placing in parallel and measurement: CT on U
- Measurement: CTs on V and W
Temperature sensor:
- PTC: see mounting above
- PT100: see mounting above
USB port
Digital I/O
1
2
3
4
5
6
7
8

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Automatic Voltage Regulators (AVRs)
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SETTING THE FUNCTION3 ‑
PARAMETERS
Help with explanation of the function.
The EasyReg software is used to:
- 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.
Installation3.1 ‑
A CD-ROM is used to install the software on
a PC. Subsequently, the link between the
computer and theAVR will be via USB cable.
The PC therefore needs to have a CD-ROM
drive and a USB port.
1 - Installation procedure: insert the
installation CD-ROM in the computer drive.
2 - The installation menu appears. Click on
the "install" button and follow the
instructions.
If the menu does not appear, go to My
Computer and double-click on the CD-ROM
drive.
Startup3.2 ‑
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".
Appearance3.3 ‑
The home page below appears:

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Installation and maintenance
D500
Automatic Voltage Regulators (AVRs)
4243 en - 2009.09 / a
LEROY-SOMER
There are three options when using this software:
- New conguration
- Open a conguration from a le
- Open a conguration from the pre-programmed AVR
If the AVR is not connected or has never been congured, it is impossible to "Open from a
D500".
Saving and loading the conguration3.3.1 ‑
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".

Installation and maintenance
D500
Automatic Voltage Regulators (AVRs)
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LEROY-SOMER
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 and click
"PC −> D500".
Wait for loading to complete.
- Select the communication type: USB or
Serial.
- Go to: • PC --> D500
• D500 --> PC
New conguration3.3.2 ‑
There are two possible conguration levels:
standard or expert.
By default, the software is in standard
mode.
Standard3.3.2.1 ‑
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 D500 via the "Edit" menu
then "PC => D500" 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
Alternator Conguration3.3.2.1.1 ‑
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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Installation and maintenance
D500
Automatic Voltage Regulators (AVRs)
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LEROY-SOMER
• 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)
1
2
3
4
5
6
7
Note: The information relating to items 1, 2, 3 and 4 can be found on the nameplate.
Stator connections: Click on the question mark to get help on the stator connections.

Installation and maintenance
D500
Automatic Voltage Regulators (AVRs)
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The electrical schematic below shows how the "wiring scheme" part changes according to the
parameters selected.
• Options

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Installation and maintenance
D500
Automatic Voltage Regulators (AVRs)
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LEROY-SOMER
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 (). They are compulsory
for parallel operation.
3. Alternator voltage transformer, enter
the voltage values at the primary and at the
secondary.
4. Bus voltage transformer, enter the
voltage values at the primary and at the
secondary.
1
2
3
4
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.

Installation and maintenance
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Automatic Voltage Regulators (AVRs)
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Regulation mode3.3.2.1.2 ‑
After entering the "Alternator Conguration" part settings, ll in the "Regulation Mode" part. Click
"Next".
4 types of regulation are offered:
- Voltage
- Power factor
- Reactive power
- Manual
Always start 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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Installation and maintenance
D500
Automatic Voltage Regulators (AVRs)
4243 en - 2009.09 / a
LEROY-SOMER
A ‑ Voltage regulation
This page consists of two parts:
A1 ‑ Voltage Regulation
To conrm, click "Next".
A2 ‑ Underspeed settings
Setting the parameters for this part starts with the "Voltage regulation" page and ends with the
"Underspeed settings" page.

Installation and maintenance
D500
Automatic Voltage Regulators (AVRs)
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A1 ‑ Voltage regulation
This page is split into two parts:
- Settings
- Options