Robin R1300 User manual

Model
WITHEMISSIONCERTIFIEDENGINE
PUB-GS1185
Rev. 4198

Section Title Page
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1 .
2 .
3 .
4 .
5 .
6 .
7 .
8 .
9 .
10 .
11 .
12 .

1 SPECIFICATIONS
Generator
T-
Engine
I
TY Pe Brushless, self-exciting, 2-pole, singlephase,
revolving field
Frequency
120V
(8.3 A)
AC Voltage (Rated current)
60 Hz
Max.
I 1ooow : Rated
1300 W
AC Output
DC Output
’ 12V- 8.3A (100W)
Voltage regulation system
I Condensersystem
j
I
I
Type
Displacement
Bore
x Stroke I 2.48 x 1.81 in (63 x 46mm)
Fuel
1 AutomotiveGasoline(unleaded)
Fueltankcapacity I 0.9 U.S. gal (3.5 liters
Oil pancapacity
I 1.3 U.S. pints (600 cc)
Continuous operating hours pertank
I Approx. 3.6 hours
Ignitionsystem 1 Solidstateignition
Startingsystem
1 Recoilstarter
: ForcedAir-cooled,4-Stroke,SideValve,
I GasolineEngine
I
I 8.73 cu. in (143 cm’)
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8
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Dimensions (L X W X H) I 19.3 x 1 1.3 x 16.1 in (490 x 288 X 41 Omm)
Dry weight
Specifications are subjecttochange without notice.
I
I 60.6 Ibs. (27.5kg)
-1-

2. PERFORMANCE CURVES
2-1 AC OUTPUT
”
1
2 3
4567
CURRENT(A)
9
10 11
7300
1200
1000
800
A
I
s
E
600 e
3
3
0
400
200
2-2 DC OUTPUT
Thevoltage curve shownin the left indicates the
characteristic
of DC output when charging a battery.
The voltagemay be decreased
by 20% when the
resistance load is applied.
0 2 4 6 8 10
CURRENT (A) -
-2-

3. FEATURES
LOW-NOISE 4
Mounting of Air-cooled, 4-Cycle, Super Side Valve ROBIN Engine (EYlSD-SSVR) and introduction
of a larger muffler into the machine realized low-noise operation.
0 LIGHT-WEIGHT COMPACT
The machine is easy to carried about dueto itslight-weight (27.5kg) and compact design.
0 HIGH OUTPUT (increased maximum output)
The 1300W outputis an increaseof lOOW over the 6OHz maximum output of the current R1210.
0 EASY OPERATION
The one-touch engine control switch integrates the engineon/off switch and the choke. All controlsare
conveniently locatedon the frontpanel.
0 LONGOPERATION
Thelarge 0.9 U.S. gal. (3.5 liter)fueltank allows about 3.6 hours of continuousoperation at 60Hz
rated load.
0 MINIMALMAINTENANCE -d
The brushless design and condenser voltage regulatorsystem ensure maintenance free operation.
0 FUNCTIONAL FEATURES
The AC/DC push button circuit breaker allows for easy and safe operationwhen an overload occurs
Equipped with voltmeter for reading AC output voltage.
DC output can be obtained for the re-chargeable battery.
or when the machine
is not functioning properly.
0 NOISE PREVENTION
Resistor spark plug prevent electric-wave noise forradio, T.V., etc.
0 OIL SENSOR (optional)
Theoilsensordetects when oildecreasesbelow the designatedlevel,stoppingtheengine and
preventing engine damage.
-3-

4. GENERAL DESCRIPTION
4-1
EX
TERNAL VIEW of GENERATOR
DC terminalEnginecontrol switch
(CHOKE-RUN-STOP) 1
Frequency adjusting
,screw (internal)
Fuelcock
' I \
\
Fuel strainer
I
Oilwarninglamp Air cleanercover
(With
oil sensor type)
Carrying handle
. Fuel tank cap
starter
\
Muffler
DrainplugOil
filler cap
Fig. 4-1
-4-

4-2 LOCATION of SERIALNUMBER and SPECIFICATION NUMBER
Serial number and specification number are stamped on the LABEL (MODEL NAME) stuck on the fuel
tank. -1
NOTE: Alwaysspeciiy these numbers when inquiring about the generator or ordering spareparts in
order toget correct
parts and accurate service.
Label
(Model name)
\
Fig. 4-2
-5-

5. CONSTRUCTION AND FUNCTION
5-1 CONSTRUCTION
6P coupler
\rll
Rotorcomplete
\
Stator complete
Rear cover \ I
'I
Diode rectifier ' Ball
Condenser Mountrubber
5-2-1 STAT0 R
The stator consists of a laminated silicon steel sheet
core,amaincoil and acondensercoil which are
wound in the core slots.
The condenser
coil excites the rotor field coil which
generates AC voltage in the main coil.
I
bearing
Fig. 5-1
5-2 FUNCTION
Through bolt
\
Stator cover Front cover
Fig. 5-2
-6-

5-2-2 CONDENSER
A condenser is mountedontherear cover andis
connectedtothecondensercoil which is wound on
thestator.Thiscondenserandcondensercoil regu-
late the output voltage.
Fig. 5-3
5-2-3 ROTOR
The rotor consists of a laminated silicon steel sheet
core and field coil which iswound over the core.
DC current in thefieldcoilmagnetizesthesteel
sheet core. Two permanent magnets are provided for
the primary exciting action.
A coolingfan is pressure-fitted on the endofthe
rotor shaft to cool the
coils, cores, rectifier, and other
generator parts.
(See Fig. 5-4)
A dioderectifier and resisteraremountedinside of
the .insulator. (See Fig. 5-5)
Coolingair is sucked by therotor fan throughthe
slits of therearcoverand is expelled through the
outlets
of the front cover.
Fig. 5-4
Fig. 5-5
-7-

5-2-4 CONTROL PANEL
The control panel has a double AC receptacle with a
ground terminals, and
DC terminals.
The voltmeter displays output voltage of the gener-
ator. The circuit breaker for AC and
DC protects the
generator from getting damages caused
by over-
loading or defective appliance.
Fig. 5-6
-8-

5-3 GENERATOROPERATION
SURGE
I
ABSORBER I
PERMANENT MAGNET
FOR INITIALEXCITATION
I
‘CONDENSER
Fig. 5-7
5-3-1 GENERATION Of NO-LOADVOLTAGE
When the generator starts running, the permanent magnet built-in to the rotor generates 3 to 6V of
AC voltageinthe main coil and condenser coilwound on the stator.
As one or two condensers are connected to the condenser coil, the small voltage at the condenser
coil generates a minute current
@ which flowsthrough the condenser coil. At this time, a small flux
is produced with which themagneticforceatthe rotor’s magnetic pole is intensified.Whenthis
magnetic forceis intensified,the respective voltages in themain coil and condenser coil rise up.
As the current @ increases, the magnetic flux atthe rotor’s magnetic pole increases further.Thus the
voltages at the main coil and condensercoil keep risingby repeating this process.
As AC current flows through the condenser coil, the density
of magnetic flux in the rotor changes.
This changeof magnetic flux induces
AC voltage in the field coil,and the diode rectifierin the field
coil circuit rectifies this
‘AC voltage into DC. Thus aDC current @ flows through the field coil and
magnetizes therotor core to generatean output voltagein
the main coil.
When generator speed reaches
3000 to 3300 r.p.m. , the current in the condenser coil and field coil
increases rapidly.
This acts to stabilize the output voltageof each coils. If generator speed further increases to the rated
value, the generator output voltage will reachto the ratedvalue.
5-3-2 VOLTAGEFLUCTUATIONSUNDERLOAD
When the output current @ flows through the maincoil to the appliance, a magnetic flux is produced and
serves to increase current
@ in the condenser coil. When current @ increases, the density of magnetic
fluxacrosstherotor core rises.
As aresult,thecurrentflowinginthefieldcoilincreasesandthe
generator output voltageis prevented from decreasing.
w
-9-

5-3-3 DC OUTPUT
-
DC output is taken out from the DC coil andis fed to
the diode stack (rectifier) where the output undergoes
full-waverectificationand is then suppliedtothe
load. The diode works to allow the current to
flow in
thedirection
@, but doesnotallowthecurrent to
flow in the direction 8, as shown in Fig. 5-8-1.
Fig. 5-8-2 shows the DC output circuit of the gener-
ator.
DC voltage is generated in the DC coil. When
the voltage in
A is higher than that in Cy the current
@ flows in the direction shown in the figure, while
nocurrentflows between
B and C becausethe
current is cut off by the diodes D,.
On the contrary, when the voltagein C is higher than
that in A, the current @ flows in thedirection as
shown in the figure.
No current flows between A and
B because the current is cutoff bythe diodes D,.
Main
coil
4
-a
-0
Fig. 5-8-1
Dl +
Fig. 5-8-2
As a result, the voltage generated at the output terminalhas a waveform with two peaks in one cycle, as
in the caseof the output wave form shownin Fig. 5-8-3.
Between A and 6
\ / 1
'"0
Between c and B
-.
0\
/-
/ \ /
'\
I \ I
\
Fig. 5-8-3
Output waveform
j Curre'nt 0
flowing flowing
between between
A and B C and B
CAUTION : Do not use DCand AC output simultaneously.
- Due to a characteristic of the condenservoltageregulation,simultaneous use ofDC
and
AC output createsvoltage dropIn DC output resultingin incapability for charging
batterles.
- 10 -

5-4 ELECTRONIC IGNITION SYSTEM
The electronic ignition system features a power transistor as the current control element. Therefore, the
ignition system
is an electronic contact point-free type that operates with the power transistor impulses 4
controlling the current. This system is also called TIC (transistor igniter circuit) and is virtually free of
ignition failure which generally results from contamination of the contact points, a typical problem with
contact type ignition systems.
Becausethis ignition systemhas no contact points, it is not affected by moisture, oil, dust, or other
contaminants. As a result, this electronic ignition systemensures sure and positive ignition with reduced
maintenance.
The
TIC mechanism consists of a transistor-incorporated ignition coil and a permanent magneto built-in
flywheel which is press-fitted on the rotor shaftof the generator.
Fig. 5-9
(1) When the permanent magneto built-in flywheel start rotating, power is generated in the primary coil
of the ignition coil and current flows to theresistor
@ .
From the resistor, current flowsthe power transistor. With this current, the power transistor turns on,
releasing current a. This stagecorresponds to theclosing of contact points.
(2) As the flywheel comes to thepoint of ignition, timing detecting circuit is activated while thecurrent
@ is flowing through the circuit.
When the ignition timing detecting circuit is activated, the signal transmitter transistor actuates with
current @ flowing. When current @ starts flowing,current @ flowing through the power transistor is
cut quickly. As a result, high voltage is produced in the secondary coil and this voltage is applied
simultaneously to the spark plug which ignites forignition. This stagecorresponds to theopening of
contact points.
- 11 -

5-5 OIL SENSOR (OPTION)
-
5-5-1 DESCRIPTION
0 The oil sensor mainly functions to detect position
of thesurface of engineoilinthecrankcase of
engines for generaluse and tostoptheengine
automatically when the oil level goes downbelow
the lower limit specified.
This prevents seizureof engine from occurringdue
to insufficient amount of oil
in the crankcase.
0 Since the sensorhas been designed toconsume a
part
of power supplied to the igniter to energize its
electronic circuit, any other external power supply
is not necessary so thatit can be mountedat the
oil filler port.
Introduction of newly developed sensing principle
featuressuperdurability and
no changewiththe
passage
of time as itdoes not use any moving part.
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oil sensor
Fig. 5-10
Merits due to introduction of electrical conductivity detectionare asfollows;
0 It hasresistancetomechanicalshocks and property of no changewiththepassage of time as
sensing element consists simplyof electrodes having no moving parts.
@ At the same time, it is capable of detecting the oil level stably as it is not influenced by engine
@ No error occurs due tofoam and flow of the oil.
@ Influence against the ignition system or the electronic units can be neglected because an electric
current supplied to the sensor canbe decreased.
- vibrations.
5-5-2 PRINCIPLE OF SENSING OIL LEVEL
There is a great differencebetween electric resistanceof air and that of oil.
Since the resistance
of air is far higher than that of oil, more electric current passesthrough the oil than
through the air, although absolute valueof the current is very smalI.
The sensor detects this current differenceand make use of it.
The sensor judges the oil quantity,by comparing a current flowing across a pair
of electrodes (inner and
outer)withthereference, in sucha way that if a currentflowsbetweentheelectrodesmore than the
reference, sufficient oil is in the crankcase, on the other hand, if a current flows less than the reference,
oil is
not sufficient.
Sinceanelectriccurrentisflowntodetectoilquantity,this is calledthe“electricalconductivity
detection” typeof sensor.
The oil level to be detected is determined by the length of electrodes and their mounting positions with
the engine.
5-5-3 ’ HOW IT OPERATES
” [Power supply]
The sensor makes use of a part of primary power source for ignition of the engine (igniter) to drive the
sensor circuit. Powerto the sensorcan usually be derived from the ”stop button”by branching wiresout.
- 12 -

[Judgement of oil level]
When sufficient oilis in the crankcase, bothof inner and outer electrodes are immersed in the oil through
whichcurrentflowsacrosstheelectrodes.Thesensorjudgesthatoil in the crankcase is sufficient. 4
When oil level goes down and the inner electrode is exposed to the air due to consumption of oil, no
current flow between the electrodes as air
is considered to be electrically non-conductive.
The sensor in this case judges that oil is insufficient.
[Decision of oil shortage]
Oil level at the electrodesmay go down momentarily probably due to the engine being slantedor affected
by vibration evenif a sufficient oil isin the crankcase.
For that reason, the sensor has an electronic timer circuit to prevent it from interpreting as short of oil
when amount of oil is sufficient. The sensor has been designed
so that the engine is to be stopped only
when oil-shortage
is detected for 5 seconds uninterrupted.
The timer employs an integration circuitand it is to be resetwhen the inner electrode is soaked in the oil
again before the sensor decidesit as oil-shortage.
The oillevelwhere the sensordecides as oil-shortage, when oil level goesdowngradually, is called
“threshold level”.
[Automatic stop of engine]
When the sensor decidesas oil-shortage, it makes the engine tostop running automatically for protection
of engine.
Once the stopping circuit is activated, it keeps functioning until it confirms that the enginehas made a
complete stop, thenthe circuit stops functioning automatically.
e
5-5-4 BLOCK DIAGRAM OFTHE CIRCUIT
Power circuit Igniter
LED indicator
Detection
Innerpole
-
Deley circuit
-
Stopping
circuit circuit
oil I
Outer pole Engine ground
Fig. 5-1 1
0 Power circuit----*-*----Thisrectifiesa part of power to the igniter and regulates it to supply the
-1
stabilized power to necessary circuits.
- 13-

@ Detection circuit*****-*Thisdetects quantity of oil, sufficient or not, according to difference of
electric resistanceacross inner and outer electrodes.
Delay circuit **.*.-**.-* This prevents the sensorfrom making an unnecessary stop of the engine by
momentary lowering of the
oil leveldue to theenginebeing slanted or
affected by vibration in spite of sufficient oilin the crankcase.
@ stoppingcircuit - - * * * - This automatically stops the enginerunning.
Also,theLED indicator forwarningcanbe’ lit whiletheengine is being
stopped. We have the wires to be connected to LED available.
5-5-5 CAUTIONSTO BE TAKEN ON HANDLING THE SENSOR
(1) Oil sensor unit
0 Be sure not to damage each wire.
Broken or short-circuited power supply wires and/or a grounding wire in particular may lead to
malfunction or breakdown.
(2) Mounting and wiring of oil sensor unit
0 Although this has beendesigned to have enough anti-noise properties in practical use, do not route
the sensor wirings in the vicinity of noise-generating sources such
as ignition plugs or high voltage
cords. This may cause malfunction or breakdown.
”
@ Since capacity of power source is limited, current flown in the electronic circuit of the sensor is
kept as low as possible.
Be sureto use terminals with a high contact reliability
of more than that of tinned terminals.
(3) Operation of oilsensor
0 If operating with the engine kept tilted, oil surface inside of the engine varies and the correct oil
level can not to be detectedwhich in turn obstructs the preventing function of engine seizure.
Operate
the engine by keeping it level.
@ When starting the engine with an insufficient oil in the crankcase, engine starts once then it stops
automatically after itruns for about 5 seconds.
@ When theenginehas been stopped by theoil sensor, voltage remained in theelectronic circuit
prevents the sensor frombeing re-started for
3 seconds after the engine stop.
Try to re-start the engineafter 3 seconds or more.
- 14-

6.
Use extremecautionnear fuel. Aconstantdanger of explosionor fireexists.
Do not fill the fuel tank while the engine is running. Do not smoke or use open flame near the fuel
tank. Be careful not to spill fuelwhen refueling. If spilt, wipe
it and letdry before starting the engine.
4
Do notplace inflammable materialsnear the generator.
Be careful not to put fuel, matches, gunpowder, oily cloth, straw, andany other inflammables near the
generator.
Do notoperate the generator ina room,cave or tunnel.
Always operate in a well-ventilatedarea.
Otherwise the engine mayoverheat and also, thepoisonous carbon monoxide contained in the exhaust
gases will endanger human lives. Keep the generator at least
1 m (4 feet) away from structures or
facilities duringuse.
Operate the generator on alevelsurface.
If the generator is tilted or moved during use, there is a danger of fuel spillage and a chance that the
generator may tip over.
Do notoperatewithwet handsor inthe rain.
Severe electric shock mayoccur. If the generator is wet by rain or snow, wipe it and thoroughly dry it
before starting.
Don’t pour water over the generator directly nor wash
it with water.
If the generator is wet with water, the insulations will be adversely affected and may cause current
leakage and electric shock.
4
Do notconnect the generator tothe commercial power lines.
This may cause a short-circuit or damage to thegenerator.
Never connect the generator to the existing house wiring. If connected, the generator will burnout
when the commercial power sourceis recovered.
Don’t operatethe generatorwith itscover removed.
The operator may be injured or suffer electricshock.
CAUTION; Ifthe circuit breaker tripped off as aresult of using an electrical appliance, thecause
can be anoverloadorashort-circuit.
In such a case, stop operationimmediately and carefully check the electrical
appliance andplugsfor faulty wiring.
- 15-

7.
-
7-1 AC OUTPUT
Generally, the power ratingof an electrical appliance indicates the amountof work that canbe done by it.
The electricpowerrequiredforoperating an electricalappliance is not alwaysequaltotheoutput
wattage of the appliance. The electrical appliances generally have a label showing their rated voltage,
frequency, and power consumption(input wattage). The power consumption of an electrical applianceis
the power necessary forusing
it. When using a generator for operatingan electrical appliance,thepower
factor and starting wattagemust be taken into consideration.
In order to determine the right size generator, it is necessary to add thetotal wattage of all appliances to
be connected to the unit.
Refer tothe followings to calculate thepower consumptionof each applianceor equipmentby its type.
Incandescent lamp, heater, etc. witha power factorof 1 .O
Total power consumptionmust be equal toor less than the rated output of the generator.
Example: A rated 1OOOW generator can turnten lOOW incandescent lamps on.
Fluorescent lamps, Motor driven tools,lightelectrical appliances, etc. witha smaller power
factor
Select a generator with arated output equivalent to 1.2to 2 times of the power consumption of the
load. Generally the starting wattage
of motor driven tools and light electrical appliances are 1.2to 3
times lager than theirrunning wattage.
Example: A rated 250W electric drill requires a400W generator to start it.
NOTE 7: If a power factor correction capacitor is not applied to the fluorescent lamp, the more
power shall be required todrive the lamp.
NOTE
2: Nominal wattage of the fluorescent lamp generally indicates the output wattage of the
lamp.
Therefore,if the fluorescentlamp has no special indication as to the power consumption,
efficiency should be taken into account as explainedin item
(5) on thefollowing page.
Mercury lampswith a smaller power factor
Loads for mercury lamps require 2 to 3 times the indicated wattage during start-up.
Example: A 400W mercury lamp requires 800W to 1200Wpower source to beturned on.
A rated 1OOOW generator canpower one 400W mercury lamp
Initiallyloaded motor driven appliances such as water pumps,compressors,etc.
These appliances require large starting wattage which is 3 to 5 times of running wattage.
Example: A rated 9OOW compressor requires a4500W generator to drive it.
NOTE 1: Motor-driven appliances require the aforementioned generator output onlyat the starting.
Once their motors are started, the appliances consume about
1.2 to 2 times their rated
power consumption
so that the excess power generated by the generator can be used
for other electrical appliances.
NOTE
2: Motor-drivenappliancesmentionedinitems (3) and (4) varyintheirrequiredmotor
starting powerdepending on the kind ofmotorandstart-upload. If it is difficultto
determine the optimum generator capacity,selecta generator with a larger capacity.
- 16-

Applianceswithout any indication asto power consumption
Some appliances have no indication as topower consumption; but instead the work load (output) is
indicated. In such a case, power consumption is to beworked out according to thenumerical *
formula mentioned below.
(Output of electrical appliance)
-
- (Power consumption)
(Efficiency)
Efficiencies of some electrical appliancesare asfollows:
Single-phase motor - - - - - - - - - - * - -
0.6 - 0.75 The smaller the motor, the
Three-phase motor * - - - * * - - - - - *
0.65 - 0.9 >lower the efficiency.
Fluorescent lamp - - - - - - - - - - - - -
0.7 - 0.8
Example 1 : A 40W fluorescent lampmeansthat its luminous output is 40W. Its
efficiency is 0.7 and accordingly, power consumption will be 40 + 0.7= 57W. As
explained in Item(2), multiply this power consumption value of 57W by 1.2 - 2 and
you will get thefigure of the necessary capacity of a generator. In other words, a
generatorwith a rated output
of 1OOOWcapacity can light nine to fourteen 40W
fluorescent lamps.
Example 2: Generally speaking, a 400W motor means that its work load is 400W. Efficiency of
this motor is 0.7 and power consumption will be 400 + 0.7= 570W. When this motor
is used for a motor-driven tool, the capacity of the generator should be multiplied by
1.2 to 3 and 570W as explained in the item(3).
Applicable wattage
60Hz
Appliance
lncandesent lamp, hot plate
I
up to lOOOW
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Fluorescentlamp, mercury lamp , Electric tool
I
up toabout 800W
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Pump, compressor up to about 250W
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1.
2.
Table 7-1
NOTES: Wiringbetween generatorand electricalappliances
Allowablecurrent
of cable
Use a cable with an allowable current that is larger than the rated input current of the load
(electricalappliance).
If theinput currentis larger thantheallowable current of the cableused,
the cable will become excessively heated and deteriorate the insulation, possibly burning it
out.
Table
7-2 shows cablesand their allowablecurrents for your reference.
Cablelength
If along cable is used, a voltage drop occurs due totheincreasedresistanceinthe
conductors decreasingthe input voltageto the load(electricalappliance). As a result, the load
canbedamaged.
w
Table 7-2 shows voltagedrops per 100 meters of cable.
- 17-

Sectional
No./mm
A
mm' wlre element current area
Gauge
No./ Allowable
0.75
17 2.0
5010.18
12
1.25
3010.18
7
7010.32
35
5.5
45 10.32
23 3.5 37
10.26
I Voltage
Table 7-2
Voltagedropindicates as V = 100 XRXIXl
R means resistance ( 52 /lo0 m) on the abovetable.
I means electric current through the wire (A).
4! means the length of the wire (m).
The length of wire indicatesround length, it means twice the lengthfrom generator to electrical tools.
7-2 DC OUTPUT
NOTE : Do not use DCand AC output simultaneously.
Due
to a characteristic of the condenser voltage regulation, simultaneous use of DC and
AC output creates voltage dropin DG output resulting in incapability
for charging batteries.
When the generator is employed to charge batteries, attentions should be paid to the specific gravity of
electrolyte in the battery.
7-2-1 SPECIFIC GRAVITY OF BATTERYELECTROLYTE
The specific gravity of electrolyte variesby temperature ; so it must be converted to the one at 20°C.
S20 = St + 0.0007 (t-20)
where
S20 : The specificgravity at 20°C
St : Measuredvalue
t : Temperature at the time of measurement(Electrolyte)
- 18 -