Leroy-Somer R230 A.V.R. Instruction Manual

This manual is to be given to
the end user
3973 en - 11.2006 / b
R230
A.V.R.
Installation and maintenance
140 mm
75 m
m
Field
Armature
T
4
6-
E+ E-
0V
110
R 230
F1
Slow-blow fuse
250V 8 A
P
1Voltage
P2 Stability
3973b_NotRegR230_en.fm Page 1 Jeudi, 9. novembre 2006 10:58 10

Installation and maintenance
R230
A.V.R.
2
3973 en - 11.2006 / b
LEROY-SOMER
SAFETY MEASURES
Before using your machine for the first 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
qualified technician.
Our technical support service will be
pleased to provide any additional infor-
mation you may require.
The various operations described in this
manual are accompanied by recommen-
dations or symbols to alert the user to
potential risks of accidents. It is vital that
you understand and take notice of the
following warning symbols.
This A.V.R. can be incorporated in a
machine marked C.E.
Warning symbol for an operation
capable of damaging or destroying the
machine or surround-ing 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
WARNING
This manual concerns the alternator A.V.R. 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 A.V.R.,
you can look forward to many years of trouble-free operation.
3973b_NotRegR230_en.fm Page 2 Jeudi, 9. novembre 2006 10:58 10

Installation and maintenance
R230
A.V.R.
3973 en - 11.2006 / b
LEROY-SOMER
3
CONTENTS
1 - SUPPLY .............................................................................................................................4
1.1 - SHUNT excitation system............................................................................................4
2 - R230 A.V.R. .......................................................................................................................5
2.1 - Characteristics.............................................................................................................5
2.2 - R230 AVR option.........................................................................................................5
3 - INSTALLATION - COMMISSIONING ................................................................................6
3.1 - Electrical checks on the AVR.......................................................................................6
3.2 - Settings........................................................................................................................6
3.3 - Electrical faults.............................................................................................................7
4 - SPARE PARTS ..................................................................................................................8
4.1 - Designation..................................................................................................................8
4.2 - Technical support service............................................................................................8
All such operations performed on the A.V.R. should be undertaken by personnel trained
in the commissioning, servicing and maintenance of electrical and mechanical
components.
Copyright 2005 : MOTEURS LEROY-SOMER
This document is the property of :
MOTEURS LEROY-SOMER
It may not be reproduced in any form without prior authorization.
All brands and models have been registered and patents applied for.
3973b_NotRegR230_en.fm Page 3 Jeudi, 9. novembre 2006 10:58 10

Installation and maintenance
R230
A.V.R.
4
3973 en - 11.2006 / b
LEROY-SOMER
1 - SUPPLY
1.1 - SHUNT excitation system
The alternator with Shunt excitation is self-
excited with an R 230 voltage regulator.
The regulator monitors the exciter
excitation current as a function of the
alternator output voltage. Very simple in
design, the alternator with shunt excitation
has no sustaining short-circuit capacity.
4 x holes Ø 5.8 x
50 x 75 mm
140 mm
75 mm
SHUNT SYSTEM
Field
Armature
T1 T2 T3
T4 T5 T6
Varistor
5+ 6-
T7 T8 T9
T10 T11 T12
STATOR : 12 wires (marked T1 to T12)
MAIN FIELD
Potentiometer for remote
voltage adjustment
ST4 Option
E+ E-
0V
110
R 230
F1
Slow-blow fuse
250V 8 A
P1 Voltage
P3 Under-
speed
P2 Stability
50Hz
60Hz
Frequency
ST3
3973b_NotRegR230_en.fm Page 4 Jeudi, 9. novembre 2006 10:58 10

Installation and maintenance
R230
A.V.R.
3973 en - 11.2006 / b
LEROY-SOMER
5
2 - R230 A.V.R.
2.1 - Characteristics
- Voltage regulation: around ± 0.5%.
- Voltage supply/sensing range 85 to 139 V
(50/60 Hz)
- Rapid response time (500 ms) for a
transient voltage variation amplitude of ±
20%
- Voltage setting P1
- Stability setting P2 .
- Power supply protected by 8 A fuse, slow-
blow action (tolerates 10 A for 10 s)
- Frequency: 50 Hz with ST3 jumper - 60 Hz
without ST3 jumper
- Factory-set underspeed protection P3 .
2.2 - R230 AVR option
Potentiometer for remote voltage
adjustment, 1000
Ω / 0.5 W min:
adjustment range ± 5%.
- Remove the ST4 jumper.
3973b_NotRegR230_en.fm Page 5 Jeudi, 9. novembre 2006 10:58 10

Installation and maintenance
R230
A.V.R.
6
3973 en - 11.2006 / b
LEROY-SOMER
3 - INSTALLATION -
COMMISSIONING
3.1 - Electrical checks on the AVR
- Check that all connections have been
made properly as shown in the attached
wiring diagram.
- Check that the ST3 frequency selection
jumper is on the correct frequency setting.
- Check whether the ST4 jumper or the
remote adjustment potentiometer have
been connected.
3.2 - Settings
The machine is tested and set at the
factory. When first used with no load,
make sure that the drive speed is
correct and stable (see the nameplate).
After operational testing, replace all
access panels or covers.
The only possible adjustments to the
machine should be made on the AVR.
3.2.1 - R 230 settings (shunt system)
Initial potentiometer settings
- P1 potentiometer (AVR voltage
adjustment): fully anti-clockwise.
- Remote voltage adjustment
potentiometer: centre position.
Run the alternator at its rated speed. If the
voltage does not increase, the magnetic
circuit should be remagnetized (see section
2.3).
- Turn the AVR voltage adjustment
potentiometer P1 slowly until the output
voltage rated value is obtained.
- Adjust the stability setting using P2.
- Sealed potentiometer P3 is factory set at
48 Hz for 50 Hz and 58 Hz for 60 Hz
3.2.2 - Special type of use
Excitation circuit E+, E- must not be left
open when the machine is running :
AVR damage will occur.
3.2.2.1 - R230 field weakening (SHUNT)
The exciter is switched off by disconnecting
the AVR power supply (1 wire - 0 or 110V).
Contact rating : 16A - 250V alt.
3.2.2.2 - R230 field forcing
Battery must be isolated from the earth.
Exciter field may be at line potential.
WARNING
WARNING
E+
E-
0V 110
Battery (B Volt)
+
-
t
(400V - 10A)
Exciter field
Diode
E+
E-
0V 110
3973b_NotRegR230_en.fm Page 6 Jeudi, 9. novembre 2006 10:58 10

Installation and maintenance
R230
A.V.R.
3973 en - 11.2006 / b
LEROY-SOMER
7
3.3 - Electrical faults
Warning : after operational testing,
replace all access panels or covers.
Fault Action Effect Check/Cause
No voltage at
no load on
start-up
Connect a new battery
of 4 to 12 volts to
terminals E- and E+,
respecting the polarity,
for 2 to 3 seconds
The alternator builds up and its
voltage is still correct when the
battery is removed.
- Lack of residual magnetism
The alternator builds up but its
voltage does not reach the rated
value when the battery is
removed.
- Check the connection of the voltage
reference to the AVR
- Faulty diodes
- Armature short-circuit
The alternator builds up but its
voltage disappears when the
battery is removed
- Faulty AVR
- Field windings disconnected
- Main field winding open circuit - check the
resistance
Voltage too
low Check the drive speed Correct speed
Check the AVR connections (AVR may be
faulty)
- Field windings short-circuited
- Rotating diodes burnt out
- Main field winding short-circuited - Check
the resistance
Speed too low Increase the drive speed (Do not touch the AVR voltage pot. (P2)
before running at the correct speed.)
Voltage too
high Adjust AVR voltage potentiometer Adjustment ineffective Faulty AVR
Voltage
oscillations Adjust AVR stability potentiometer If no effect : try normal / fast recovery modes (ST2) - Check the speed : possibility of cyclic irregularity
- Loose connections
- Faulty AVR
- Speed too low when on load (or U/F bend
set too high)
Voltage
correct at no
load and too
low when on
load (*)
Run at no load and
check the voltage
between E+ and E- on
the AVR
- Check the speed (or U/F bend set too
high)
- Faulty rotating diodes
- Short-circuit in the main field. Check the
resistance
- Faulty exciter armature.
(*) Caution : For single-phase operation, check that the sensing wires coming from the AVR are correctly connected to
the operating terminals
Voltage
disappears
during
operation
Check the AVR, the
surge suppressor, the
rotating diodes, and
replace any defective
components
The voltage does not return to the
rated value. - Exciter winding open circuit - Faulty exciter armature
- Faulty AVR
- Main field open circuit or short-circuited
3973b_NotRegR230_en.fm Page 7 Jeudi, 9. novembre 2006 10:58 10

Installation and maintenance
R230
A.V.R.
8
3973 en - 11.2006 / b
LEROY-SOMER
4 - SPARE PARTS
4.1 - Designation
4.2 - Technical support service
Our technical support service will be happy
to provide any information you require.
When ordering spare parts, you should in-
dicate the complete machine type, its serial
number and the information indicated on
the nameplate.
Part numbers should be identified from
the exploded views and their description
in the parts list.
Our extensive network of "service stations"
can dispatch the necessary parts without
delay.
To ensure correct operation and the safety
of our machines, we recommend the use of
original manufacture spare parts.
In the event of failure to comply with this ad-
vice, the manufacturer cannot be held res-
ponsible for any damage.
Description Type Code
A.V.R. R 230 AEM 110 RE 014
3973b_NotRegR230_en.fm Page 8 Jeudi, 9. novembre 2006 10:58 10

Installation and maintenance
R230
NOTES
3973 en - 11.2006 / b
LEROY-SOMER
9
3973b_NotRegR230_en.fm Page 9 Jeudi, 9. novembre 2006 10:58 10

Installation and maintenance
R230
NOTES
10
3973 en - 11.2006 / b
LEROY-SOMER
3973b_NotRegR230_en.fm Page 10 Jeudi, 9. novembre 2006 10:58 10

Installation and maintenance
R230
NOTES
3973 en - 11.2006 / b
LEROY-SOMER
11
3973b_NotRegR230_en.fm Page 11 Jeudi, 9. novembre 2006 10:58 10

MOTEURS LEROY-SOMER 16015 ANGOULÊME CEDEX - FRANCE
338 567 258 RCS ANGOULÊME
S.A. au capital de 62 779 000 €
www.leroy-somer.com
3973b_NotRegR230_en.fm Page 12 Jeudi, 9. novembre 2006 10:58 10