SR200 - RS Components
RUTLAND SHUNT REGULATOR
SR200
INSTRUCTION MANUAL
(Part No. CA-11/18 12v CA-11/19 24v)
Document No. SM1415 Issue B
INTRODUCTION
Please read and understand these instructions before installing your SR200.
The SR200 Shunt Regulator is designed for use with the Rutland 913 Windcharger or
Solar arrays up to 200W. It is also suitable for combined Wind/Solar systems
comprising Rutland 913 plus solar array up to 60w maximum. An internal blocking
diode allows parallel operation of multiple charge sources (e.g. Rutland 913, engine
alternator, mains charger).
The SR200 protects your batteries from overcharging, avoiding the loss of electrolyte
through gassing and prolongs battery life. This also helps protect other electronic
equipment from damage due to high battery voltage.
PRINCIPLE OF OPERATION
The SR200 constantly monitors the battery voltage and when the pre-set cut-in level is
reached (see table 1.) tapers the charge current down until no charge current is flowing
into the battery, the regulator achieves this by shunting the excess power and dissipates
it in the form of heat. The red LED mounted on the regulator PCB will light when the
regulator begins to shunt.
Unless stated otherwise when ordered, the regulator 15 set in accordance with table 1
which assumes Lead-Acid batteries. If the regulator is to be used with any other
battery type e.g. Gel Lead-Acid or Nickel Cadmium, or is to be used in conjunction
with a charge splitter, the regulator will require resetting according to the battery
manufacturers recommendations. See Appendix A.
The SR200 1s rated at 200w continuous in 40°C ambient. For higher charge source
ratings 2 or more SR200 regulators can be used in parallel. See Appendix B.
For higher ambient temperatures the SR200 requires derating, please refer to
manufacturer.
Table 1
Nominal Battery Voltage Shunt Cut-in Voltage
12 13 8
24 27.6
INSTALLATION
Ensure the voltage indicated on the label on the SR200 is correct for your battery
system.
Mounting
¢ Mount the regulator securely to a flat non- combustible surface as shown in fig,
allowing adequate ventilation to ensure vertical airflow over the cooling tins. Never
mount in a sealed enclosure. Mounting the regulator other than shown will
considerably reduce it’s rating & cause overheating & component tailure.
Always mount the regulator using the insulated teet supplied, the heatsink is at +ve
charge source potential.
Never mount directly onto a combustible surface, the heatsink and the power
resistors can become extremely hot during operation. A metal heat shield can be
fitted between the regulator and the mounting surface if required.
Never mount in a closed battery compartment, corrosive battery gasses can
seriously damage the regulator components.
3 + ‘ 00 e
. 96 4
NS
N i - A
1. Mounting Surface NY E
2. Heatsink N - de o
3. Insulated Mounting Feet \ | | |
4. LED N
5. Cut-in set level pot \ 1500 76 6
6. Paralleling Terminal !
7. -ve Lead (Black) N
8. Generator +ve (Brown) NT a
9. Battery +ve Lead (Red) N AP ©
— > —
N
N A 1
Fig I 2 78 9
Electrical Connection 1g
Select suitable wiring and connectors for the interconnections that are capable of
continuously carrying 15Amps minimum. An Interconnect Unit (CA-11/24) is
available which is prewired for easy, neat installation.
Keep wiring lengths to a minimum to eliminate unnecessary voltage drops.
maximum cable length between regulator and battery should be 1.5m to ensure
accurate voltage sensing.
Ensure that the wind generator is restrained from turning, solar panels are covered,
and all other charge sources are switched off before connecting the regulator to the
system.
Follow the basic wiring diagram (Fig 2, 3, 4 or 5) as appropriate.
Connect the regulator BLACK lead to the battery and charge source negative.
Connect the regulator BROWN lead to the charge source positive lead.
Connect the regulator RED lead to the battery positive via charge fuse
WG913 WIND
GENERATOR
SR200 SHUNT
REGULATOR
- qi
RED
BROWN
BLACK |*
BLACK
RED
CHARGE FUSE
Ц
[= + |
BATTERY
Fig 2. Basic wiring schematic - WG913 + SR200
SOLAR ARRAY WG913 WIND
60W MAXIMUM GENERATOR
SR200 SHUNT
REGULATOR
BLOCKING DIODE SACK
BROWN
+ BLACK
RED
Jr)
CHARGE FUSE
[1 [1
| - + |
BATTERY
Fig 3. Basic wiring schematic - WG913 + Solar Array + SR200
SOLAR ARRAY WG913 WIND
200W MAXIMUM GENERATOR
SR200 SHUNT
REGULATOR
SR200 SHUNT
REGULATOR
|
- +
BROWN
Г . | 7.
RED
CHARGE FUSE
BATTERY
Fig 4. Basic wiring schematic - WG913 + SR200 + Solar Array >60w
WG913 WIND
GENERATOR
SR200 SHUNT
REGULATOR
ALLE
BROWN
0—
BLACK
RED
| CHARGE FUSE
CHARGE
SPLITTER
1 [1 [
= |
BATTERY BATTERY
Fig 5. Basic wiring schematic - WG913 + SR200 + Charge Splitter
Appendix A - Regulator Cut-in Voltage Adjustment
If the SR200 Charge Regulator is to be used with Gel type Lead-Acid or Nickel
Cadmium Batteries, the cut-in voltage must be reset according to the battery
manufacturers recommendations, to prevent damage to the battery due to excessive
voltage.
If the Regulator is to be used in a split charge multiple battery system, the cut-in
voltage must be reset to compensate for the voltage drop of the charge splitter diodes.
To set the SR200 a variable dc power supply with built in voltmeter and ammeter, or
separate voltmeter and | Amp FSD ammeter will be required. (See Fig 6).
e Connect the regulator BLACK lead to the power supply Negative.
e Connect the regulator BROWN & RED leads to the power supply Positive. If a
separate ammeter is to be used this should be connected between the power supply
positive & the regulator BROWN & RED leads.
e [fa separate voltmeter is to be used connect this across the power supply terminals.
e Switch on the power supply & adjust the voltage to the required cut-in level.
A small current reading will be indicated on the ammeter.
e Adjust the regulator potentiometer, (item 5 in fig 1) until the regulator begins to
shunt, this will be indicated by a sharp increase in the current reading. The red LED
(item 4 in fig 1) should light.
e Reduce the power supply voltage until the regulator turns off & increase again until
it again just begins to shunt. Check that the voltage 15 the desired cut-in level. Re-
adjust as necessary.
Appendix B - Parallel Operation of SR200 Regulators.
SR200 regulators can be operated in parallel to regulate charge sources greater than
200w. Each regulator can handle a maximum of 200w in a 40°C ambient. To ensure
correct load sharing, the voltage sensing circuit of one regulator will control the power
circuits of all the paralleled units. (See Fig 7). :
e Connect all BLACK leads of all regulators to the ChargeSource & Battery
Negative.
e Connect all BROWN leads of all regulators to the Charge Source Positive.
e Connect all RED leads of all regulators to Battery Positive.
e Link together all the paralleling tags (item 6 in fig 1) ot all regulators.
e Adjust the regulator potentiometer (item 5 in fig 1) fully anti-clockwise on all but
one of the paralleled regulators. The system is set tor correct parallel operation.
_ SR200 SHUNT
1380) (00% ZZ
DC POWER SUPPLY re
15 37
7 A |
Л |
+ -
1 her
BLACK
BROWN
RED
«+ hem
+ =“
Y VOLTMETER A AMMETER
(IF REQUIRED)
(IF REQUIRED)
Fig 6. Wiring schematic for adjustment of SR200 Cut-in level
=
BLACK
CHARGE ”
SOURCE BROWN
RED
BATTERY
Fig 7. Wiring schematic showing parallel connection of 2 or more SR200s
LIMITED WARRANTY
The Marlec Engineering Company Limited Warranty provides tree replacement cover
for all defects in parts and workmanship for 12 months from the date of purchase.
Marlec's obligation in this respect is limited to replacing parts which have been
promptly reported to the seller as having been in his opinion defective and are so found
by Marlec upon inspection.
Defective parts must be returned by prepaid post to Marlec Engineering: Company
Limited, Rutland House, Trevithick Road, Corby, Northamptonshire, NN17 5XY,
England, or to an authonsed Marlec agent.
This Warranty is void in the event of improper installation, owner neglect or natural
disasters and does not extend to support posts, inverters or batteries.
No responsibility 1s assumed for incidental or consequential damage, damage caused by
the use of any unauthorised components.
No responsibility is assumed for non "furling" versions of the Rutland Windcharger (ie.
the Standard and Manne generators) where Marlec or one of its authorised agents
finds that a generator incorporating a furling device should have been used.
Manufactured by:
Marlec Engineering Co Ltd
Rutland House
Trevithick Road
Corby
Northamptonshire
NN17 SXY
England
Tel. 01536 201588 Fax 01536 400211
Email. Marlec(@dial pipex.com
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