Leroy-Somer R220 VSG+CCM Instruction Manual

4291 en -10.2008 /a
R220
A.V.R.
Installation and maintenance

LEROY-SOMER Installation and maintenance 4291 en-10.2008/a
R220
A.V.R.
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.
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.
Warning symbol for an operation capable
of damaging or destroying the machine
or surround-ing equipment.
Ourtechnical support service wi II be pleased
to provide any additional infor-mation you
may require.
The various operations described in this
manual are accompanied by recommen-da-
tions or symbols to alert the user to potential
risks of accidents. It is vital that you unders-
tand and take notice of the following warning
symbols.
Warning symbol for general danger to
personnel.
This A.V.R. can be incorporated in a
machine marked C.E. 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 incorpórate the latest
technological developments. The information
contained in this document may therefore be
changed without notice.
«*i r v~ S om er

LEROY-SOMER Installation and maintenance 4291 en-10.2008/a
R220
A.V.R.
CONTENTS
1 - SUPPLY .................... ..... ...4
1.1 - SHUNT excitation system ............................. 4
2-R220A.V.R ................. .. ....................................................... 4
2.1 - Characteristics ............. 4
2.2 - R220 AVR option ...................................... 4
3 - INSTALLATION - COMMISSIONÍNG .......................................................... 5
3.1 - Electrical checks on the AVR .............................................................................. 5
3.2 - Settings ...................................................................................................................... .5
3.3 - Electrical faults ................................................................................................... 6
4 - SPARE PARTS... .................................................. 7
4.1 - Designation ......................................................................................................... 7
4.2 - Technical support Service ............................................................................................. 7
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.
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LEROY-SGMER Installation and maintenance 4291 en-10.2008/a
R220
A.V.R.
1 - SUPPL
1.1 - SHUNT excitation system
The alternator with Shunt excitation is self-
excited with an R 220 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.
2-R220A.V.R.
2.1 - Characteristics
- Voltage regulation: ±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 Atuse slow-
blow action (tolerates 10 A for 10 s)
The fuse is impregnated in the resin
therefore it can not be replaced.
- Frequency: 50 Hz with ST3 jumper - 60 Hz
without ST3 jumper.
2.2-R220AVR option
Potentiometer for remóte voltage
adjustment 1000 £2/ 0.5 W min: adjustment
range ± 5%.
- Remove the ST4 jumper.
STATOR : 12 wires (marked T1 to T12)
T1 ÍT7 jT2rfT8 ÍT3 |T9
T11 T6 T12
P1 ^Voltage^
T4 Option
Potentiometer for remóte
voltage adjustment
P2 ^tability^
T3 Frequency
B50 H z ^ 6 0 H z

LEROY-SOMER Installation and maintenance 4291 en-10.2008/a
R220
A.V.R.
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
remóte adjustment potentiometer have
been connected.
3.2 - SettingsA
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 220 setting (shunt system)
Initial potentiometer settings
-Plpotentiometer(AVRvoltageadjustment):
fully anti-clockwise.
- Remóte 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
3.3).
- Turn the AVR voltage adjustment
potentiometer P1 slowly until the output
voltage rated valué is obtained.
- Adjust the stability setting using P2.
Clockwise: increase the rapidity.
Anti-clockwise: decrease the rapidity.
3.2.2 - Special type of use
( W ARNING )
Excitation circuit E+ E- must not be left
open when the machine is running : AVR
damage will occur.
3.2.1.1 - R220 field weakening (SHUNT)
— <rfc>— o
r
VOLT P0T1K 110 0v E+ E-
* i i [ i E 3 H in n
The exciter is switched off by disconnecting
the AVR power supply (1 wire - 0 or 110V).
Contact rating : 16A - 250V alt.
3.2.1.2 - R220 field forcing
(400V-10A) Diode
&
Battery must be isolated from the earth.
&
Exciter field may be at line potential.

LEROY-SOMER Installation and maintenance 4276 en- 10.2008/a
R220
A.V.R.
3.3 - Electrical faults
Fault Action Effect Check/Cause
No voltage at
no load on
start-up
Connect a new battery
of 4 to 12 volts to
termináis 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
valué 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 - 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 O
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 termináis
Voltage
disappears
during
operation
Check the AVR the
surge suppressor the
rotating diodes and
replace any detective
components
The voltage does not return to the
rated valué. - Exciter winding open circuit
- Faulty exciter armature
- Faulty AVR
- Main field open circuit or short-circuited
A
Warning : after operational testing replace all access panels or covers.
i_é»rov -~

LEROY-SOMER Installation and maintenance 4276 en- 10.2008 /a
R220
A.V.R.
4 - SPARE PARTS
4.1 - Designation
Description Type Code
A.V.R. R 220 AEM110 RE 028
4.2 - Technical support Service
Our technical support service will be happy
to provide any information you requiré.
When ordering spare parts you should in
dícate 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 alternators 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.

Leroy-Somer
Leroy omer Electro-Technique (Fuzhou) Co., Ltd
NO.l Emerson Road, Gaishan,Cangshan district,Fuzhou,Fujian,P.R.China 350026
Tel: [phone] Fax: [phone]