HRDi Manual

HRDi Manual
HRDi Charge Regulator
Installation and Operation
Document No. SM-347 Issue A 29/01/2009
Marlec Engineering Co Ltd
HRDi Charge Regulator
Installation and Operation
Congratulations and thank you for purchasing Marlec’s HRDi Charge Regulator.
This is the latest technology for charge regulation of small Rutland wind turbines and solar panels.
Summary of Features & Uses
Protects batteries from overcharging.
Protects electronic equipment from high battery voltage damage.
Automatic 12 Volt or 24 Volt setting.
Temperature compensation for optimum charge regime with internal and external sensor.
Multi stage charging for optimum charge regime.
Built in charge / stop switch for installation & maintenance.
For use ONLY with Rutland 503, 504, 504-e, 913, 914i and FM-910-3 Windchargers.
Input for up to 160Watts of solar panels. Note : in ambient temperatures >40°C the solar panel
input must be de-rated. Contact your dealer or the manufacturer for advice.
May be connected in parallel with other charge sources (not through the HRDi)
For use with a single or dual battery bank.
Clear alpha-numeric digital LCD screen with user display options.
Push button activated and timer controlled backlight.
Accepts up to 6 mm2 cable ( SWG 11 or AWG 9 ).
Optional remote display can be added to dedicated port.
Operating temperature: -10°C to + 40°C (LCD 0°C to + 40°C )
HRDi Layout & Main Features
LCD screen
monitored data
Scroll button
Zero button
Back-light button
* Please note
that these
buttons also
have further
Wall mounting
fixing holes.
slots that must
never be
Charge / Stop Switch shown in
stop position as used for
installation / maintenance.
Ports for optional
remote display (left)
and supplied external
temperature sensor
Document No. SM-347 Issue A 29/01/2009
Wiring block for inputs from Windcharger
and solar panels and output to battery banks.
Marlec Engineering Co Ltd
HRDi Charge Regulator
Installation and Operation
Eleven Step Quick Start Guide
The sequence of connection is critical to the voltage set up of the HRDi. Follow these instructions
carefully to ensure no connections are live during installatioin. See Fig 2 for guidance.
Select a covered dry vertical wall location in a ventilated area close to the batteries. Using the four
screw holes in the casing, firmly attach the HRDi with the wiring block downmost. At this stage we
recommend that the external temperature sensor be inserted into its dedicated port so that the sensor
is in the viscinity of the batteries.
Select cables and connectors that will continuously carry a minimum of 10 Amps. No less than
4.0 mm² gauge cable should be used to provide the link from the HRDi to the battery.
Cut the minimum cable necessary to link the HRDi to the battery, thus avoiding voltage drop and
ensuring accurate voltage sensing. The maximum recommended length is 1.5m.
Caution. Before any connections to the HRDi are made, cover any solar panels and restrain the
Windcharger from turning. Ensure that any other charge sources to the battery are stopped.
Set the HRDi Charge / Stop switch to the Stop position.
Connect the battery link cables to the HRDi battery positions, BAT1+ & BAT1- and if a second
bank is used, BAT2+ & BAT2-. It is ESSENTIAL that BAT1 is connected as this link provides
internal power for the HRDi. Connect BAT2 before BAT1 if both are to be used.
Connect the 2 Windcharger cables to the Windcharger positions ( WG + & WG - ) and the solar
panel cables to the solar panel positions ( PV + & PV - ) ensuring correct polarity is observed.
Note : Solar panels must be fitted with appropriate blocking diodes , parallel panels having one
each. Keep the solar panels covered and Windcharger tied.
Connect the other ends of the battery link cables to the battery terminals, ( + & - ) ensuring
correct polarity. This senses the battery voltage and establishes 12V or 24V operation. The LCD
screen and buttons will now illuminate. Do not press any buttons.
The screen shows a brief introduction screen, then a status report that must be checked as
corresponding to the set up as shown below:
System Voltage 12 V
Battery 2 Connected
External Temp
Other option =
Other option = 24
Other option = Not Fitted
Note : With the shutdown switch still in
the stop position wires may be
disconnected in order to start again
should the settings not be as required.
Press Continue (back light button) > or wait for 10 seconds for the operating screen to display.
Move the Charge / Stop switch to the Charge position, uncover any solar panels and untether the
Rutland Windcharger. The system is now fully operational and will begin to monitor & log.
Document No. SM-347 Issue A 29/01/2009
Marlec Engineering Co Ltd
HRDi Charge Regulator
Installation and Operation
HRDi Display
Button Functions
: Scroll Button Press to scroll through the settings displayed.
: Zero Button Press to zero the logged Ah displays.
: Light - Switches the back light on/off.
Default setting is is on for 60 seconds
All three buttons have
further functions when
the HRDi is put into
programme mode. In this
mode the buttons become
selectors where choices
have to be made
Understanding The LCD Display
WG = Windcharger
PV = Solar Panel(s)
NET = Combined WG + PV
( less Regulation reduction )
6 Amp hours of
stored charge have
been accumulated by
the battery after 2
hours of charging
3.25 Amps of
current generated
by the Windcharger
in this case
38 Watts of power
generated by the Windcharger
in this case
3.25A 38.0W
Elapsed time
since last reset
Charging Mode Either :
Charge Current may be
flowing into the
battery bank(s)
1 : 11.7V l Charge
2 : N/C l Bulk
Battery 1 is 11.7 Volts
Battery 2 is not
Multistage Charge Mode - Either :
Low will alternate Bulk - Bulk rapid charging or absorption
with the voltage
reading for values
Float - Float stage maintaining and slowly
below 11.0 V @ 25°C
building to full charge.
Reg Regulation has
begun but some
current may still
flow into battery
User Guidance
Use the Scroll Button to scroll between WG, PV & NET
to see the displays of current, power inputs and Ah from these
charge sources.The display can be left in any of the three
positions and the quantities refer only to the featured input.
Press once to open the menu for zeroing ALL the Amphours &
elapsed time previously logged. The NO and YES options are on
the top two buttons.
Charge / Stop Switch should be kept in upper position during
maintenance / setting up. The switch should NOT be operated
during high winds.
Document No. SM-347 Issue A 29/01/2009
Reg No current is
flowing to the
battery bank(s)
as the mode has
shifted to
Regulation and
the Windcharger
will run very
Marlec Engineering Co Ltd
HRDi Charge Regulator
Installation and Operation
User Programming
Default Settings
The following settings are factory programmed :1.Backlight on LCD display
-remains illuminated for 60 seconds
2.Charge Level ( maximum voltage per cell ) -2.400 V / Cell *
3.Button Illumination ( on / off )
4.Restore Factory Settings
We strongly recommend retaining these at all times.
Note -A delay of 30 seconds in the
reprogramming procedure will automatically return normal operating mode without saving changes.
To change programmed settings press the back light button for 3 seconds continuously to begin the
sequence of reprogramming options. The Software version & serial number briefly appears. Press
the back light button once within the next 5 seconds to go to the first option below. ( Note : Failure
to do so returns you to the normal working mode )
Press the UP button to increase the time or DOWN button to decrease
the time in 10 second steps. Press OK to confirm the change and move
to the next step.
2.Max V/Cell *
@ 25° C
Press the UP button to increase voltage or DOWN button to decrease
voltage. Press OK to confirm the change and move to the next step.
3.Button Illumination.
Press the top button to toggle between ON and OFF. Press OK to
confirm the change and move to the next step.
4.Restore Factory Setting. Default is YES. Toggle to NO and press OK to save the changes made.
Or Press OK and factory settings are restored.
Note : At any time in reprogramming procedure, if no button is pressed for 30 seconds then normal
operation is returned without any changes being saved.
It is not recommended that this value be changed for all lead-acid batteries. Temperature
compensation adjusts charging level to optimise it for the ambient temperature of the
battery bank(s). The external temperature sensor should be placed on or near to the battery
bank(s) where possible and may be attached to a battery lead for convenience.
Operating Principles
The HRDi Regulator protects batteries from overcharge. It uses pulse width modulation and
multi-stage charge technology to maximise the power delivered to and retained in the battery. In the
bulk/absorption phase all the available wind and solar power is used to charge the battery as quickly
as possible. The float phase ensures charge is maintained whilst minimising gassing thus prolonging
battery life. Some discharging of the battery recommences this cycle.
The temperature compensation feature automatically adjusts the voltage regulation settings according
to deviations of ambient temperature from 25°C. The pre-programmed settings are suitable for lead
acid, AGM (absorbed glass matt) and most Gel type batteries.
Default settings are:
Nominal Battery Voltage at 25°C
Maximum Float Voltage at 25°C
Maximum Bulk Voltage at 25°C *
Document No. SM-347 Issue A 29/01/2009
Marlec Engineering Co Ltd
HRDi Charge Regulator
Installation and Operation
Easy Steps To Avoiding Damage / Ensuring Optimum Operation
During installation or maintenance set the “Stop” position. See Fig 1 :-
Do not use the “Stop” switch as a brake to stop a Windcharger that is in
fast rotation. If possible first orient the turbine to a downwind position to slow it down.
During installation the first “live” connection must be to the battery.
This configures the 12V or 24V operation.
Never disconnect the HRDi from the battery unless the “Stop” switch is
activated and ensure reconnection is made before returning to the “Run”
position. Any on-board battery management systems must not break this
Fig 1 Charge / Stop
Never connect an open circuit running Windcharger to the HRDi as this
will cause permanent damage.
Never make the connection of a solar panel in direct sunlight to the HRDi .
Do not exceed the recommended 160W of solar panels. Note : in ambient temperatures >40°C
the solar panel input must be de-rated. Contact your dealer or the manufacturer for advice.
Always fit an appropriate blocking diode to each solar panel input.
Never connect the HRDi to the battery or any charge sources in reverse polarity.
Avoid exceeding the recommended wiring distance between HRDi and battery. Longer distances
require heavier gauge cable or charging efficacy will be affected.
Never obstruct the ventilation slots of the HRDi.
Please take note of these steps to avoid the loss of warranty cover.
In high levels of auxiliary charge, eg from an engine, the HRDi may enter regulating mode and thus
the windcharger will run at a slow speed.
The logging feature of the HRDi will continue to record up to 9999 Ah or 9999 hours duration
before automatically returning to zero. (if not reset by user in the meantime)
The memory in the HRDi saves the latest settings made and these are retained even if the unit is
disconnected. Reconnection immediately re-activates these settings.
The reprogramming of the Max V/Cell @ 25° C ( see * ) may only be necessary when using non
lead-acid batteries and limited types of Gel batteries. See battery manufacturers advice. We strongly
advise against making any changes in this value as batteries may be permanently damaged.
Document No. SM-347 Issue A 29/01/2009
Marlec Engineering Co Ltd
HRDi Charge Regulator
Installation and Operation
Cut Away of HRDi Wiring Block
WG -Windcharger
HRDi Charge Regulator
PV— Solar Module
(Max 160 W)
Wiring block
* Parallel panels each
require a blocking diode .
In Line Fuse
Supplied With
Battery 1
Battery 2
Fig 2 Basic Wiring Scheme
Document No. SM-347 Issue A 29/01/2009
Marlec Engineering Co Ltd
HRDi Charge Regulator
Installation and Operation
The Marlec Engineering Company Limited Warranty provides free 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 and are in the seller’s opinion defective and are so found by Marlec upon
inspection. A valid proof of purchase will be required if making a warranty claim.
Defective parts must be returned by prepaid post to the manufacturer Marlec Engineering
Company Limited, Rutland House, Trevithick Road, Corby, Northamptonshire, NN17 5XY,
England, or to an authorised Marlec agent.
This Warranty is void in the event of improper installation, owner neglect, misuse,
damage caused by flying debris or natural disasters including lightning and hurricane
force winds. This warranty does not extend to support posts, inverters, batteries or
ancillary equipment not supplied by the manufacturer.
No responsibility is assumed for incidental damage. No responsibility is assumed for
consequential damage. No responsibility is assumed for damage caused by the use of any
unauthorised components.
No responsibility is assumed for use of a non "furling" versions of the Rutland Windcharger
where Marlec or one of its authorised agents finds that a generator incorporating a furling
device should have been used.
Manufactured in the UK by
Marlec Engineering Co Ltd
Rutland House,
Trevithick Rd,
Corby, Northants,
Tel: +44 (0)1536 201588
Fax: +44 (0)1536 400211
Email: [email protected]
Document No. SM-347 Issue A 29/01/2009
Marlec Engineering Co Ltd
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