Leroy-Somer R220 VSG+CCM Instruction Manual

2013.03 / d
R220
124 mm
85 mm
T1 T2
T3
T4 T5
T6
5+ 6-
T7 T8
T9
T10 T11
T12
E+ E-
0V
110
R 220
P1
P2
ST3
VOLT
OPEN FOR 60 Hz STAB
POT 1K
ST4
50 Hz 60 Hz
This manual is to be given to
the end user
A.V.R.
Installation and maintenance
4291 en -
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LEROY-SOMER 2013.03 / d
Installation and maintenance
R220
A.V.R.
4291 en -
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-da-
tions or symbols to alert the user to po tential
risks of accidents. It is vital that you unders-
tand 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: All rights are reserved to modify the
characteristics of the 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 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.
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LEROY-SOMER 2013.03 / d
Installation and maintenance
R220
A.V.R.
4291 en -
CONTENTS
1 - SUPPLY ..............................................................................................................................4
1.1 - SHUNT excitation system ............................................................................................4
2 - R220 A.V.R. ........................................................................................................................4
2.1 - Characteristics .............................................................................................................4
2.2 - R220 AVR option ..........................................................................................................4
3 - INSTALLATION - COMMISSIONING .................................................................................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
WARNING
The R220 AVR cannot be used in dedicated single-phase 60 Hz.
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.
The R220 is an IP00 product. It must be installed inside a unit so that this unit’s cover can
provide IP20 minimum total protection (it must only be installed on LS alternators in the
appropriate location so that when viewed externally, it has a higher degree of protection than
IP20).
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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4
LEROY-SOMER 2013.03 / d
124 mm
85 mm
T1 T2 T3
T4 T5 T6
5+ 6-
T7 T8 T9
T10 T11 T12
E+ E-
0V
110
R 220
P1
P2
ST3
VOLT
OPEN FOR 60 Hz STAB
POT 1K
ST4
50 Hz 60 Hz
Installation and maintenance
R220
A.V.R.
1 - SUPPLY
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 - R220 A.V.R.
2.1 - Characteristics
- Storage : -55°C ; +85°C
- Operation : -40°C ; +65°C
- 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 A fuse, 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.
- The size of the screwdriver tip used to
adjust the potentiometer is 2.5 mm.
2.2 - R220 AVR option
Potentiometer for remote voltage
adjustment, 1000 Ω / 0.5 W min: adjustment
range ± 5%.
- Remove the ST4 jumper.
For wiring up the external potentiometer;
the “earth” wires must be isolated as
well as the potentiometer terminals
(wires at the same voltage as the power).
SHUNT SYSTEM
MAIN FIELD STATOR : 12 wires (marked T1 to T12)
Armature
Field
Voltage
Option
Stability
Frequency
Potentiometer for remote
voltage adjustment
Varistor
2 x holes Ø 5.8 x 109 mm
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LEROY-SOMER 2013.03 / d
Installation and maintenance
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
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 220 setting (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
3.3).
- Turn the AVR voltage adjustment
potentiometer P1 slowly until the output
voltage rated value is obtained.
- Adjust the stability setting using P2.
Clockwise: increase the rapidity.
Anti-clockwise: decrease the rapidity.
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 - R220 field weakening (SHUNT)
The exciter is switched off by disconnecting
the AVR power supply (1 wire - 0 or 110V).
Contact rating : 16A - 250V alt.
The power supply contactor must only be
closed when the alternator is not being
driven
3.2.2.2 - R220 field forcing
Battery must be isolated from the earth.
Exciter field may be at line potential.
WARNING
E+ E-
0V
110
VOLT POT 1K
Battery (B Volt)
+
-
t
(400V - 10A) Diode
E+ E-
0V
110
Exciter field
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LEROY-SOMER 2013.03 / d
Installation and maintenance
R220
A.V.R.
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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
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
- 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
Warning : after operational testing, replace all access panels or covers.
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LEROY-SOMER 2013.03 / d
Installation and maintenance
R220
A.V.R.
4276 en -
4 - SPARE PARTS
4.1 - Designation
Description Type Code
A.V.R. R 220 AEM 110 RE 028
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 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.
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