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SAMLEX AMERICA INC.  |  39

Switch on the AC load(s). The GREEN "POWER" LED (2, Fig 6.1) should remain lighted 
for normal operation of the load.

9.3  POWERING ON THE LOADS

After the inverter is switched on, it takes a finite time to become ready to deliver full 
power. Hence, always switch on the load(s) after a few seconds of switching on the 
inverter. Avoid switching on the inverter with the load already switched on. This may 
prematurely trigger the overload protection.

When a load is switched on, it may require initial higher power surge to start. Hence, if mul-
tiple loads are being powered, they should be switched on one by one so that the inverter is 
not overloaded by the higher starting surge if all the loads are switched on at once.

9.4  TEMPERATURE CONTROLLED COOLING FAN

The cooling fan (behind the cooling fan discharge opening 6, Fig 6.1) is thermostatically 
controlled. Temperature of a critical hot spot inside the inverter is monitored to activate 
the fan and the over temperature shut-down. When the temperature of this hot spot 
reaches 55°C ± 3°C, the fan is switched ON. The fan will be automatically switched OFF 
once the hot spot cools down to 45°C ± 3°C. Please note that the fan may not come on at 
low loads or if the ambient temperature is cooler. This is normal.

9.5  INDICATIONS FOR NORMAL OPERATION

When the inverter is operating normally and supplying AC load(s), the GREEN "POWER" LED 
(2. Fig 6.1) will be lighted. Please see Section 10, "Protections" and Section 11 "Troubleshoot-
ing Guide" for symptoms of abnormal operation.

9.6  NO LOAD DRAW (IDLE CURRENT)

When the ON/OFF Switch (1, Fig 6.1) is turned ON, all the circuitry inside the inverter 
becomes alive and the AC output is made available. In this condition, even when no 
load is being supplied (or, if a load is connected but has been switched OFF), the inverter 
draws a small amount of current from the batteries to keep the circuitry alive and ready 
to deliver the required power on demand. This is called the "Idle Current" or the "No 
Load Draw". Hence, when the load is not required to be operated, turn OFF the ON/OFF 
switch (1, Fig 6.1) on the inverter to prevent unnecessary current drain from the battery.

i

    

INFO

When the inverter is turned OFF using the optional Remote Control RC-15A, 
some control circuitry in the inverter is still alive and will draw very low current. 
Therefore, to prevent any drain from the battery, switch OFF the inverter from 
the ON/OFF switch (1, Fig 6.1) provided on the front panel of the inverter.

 

SECTION 9  |  

Operation

Содержание PST-60S-48E

Страница 1: ...DC AC Power Inverter Pure Sine Wave PST 60S 48E Please read this manual BEFORE installing your inverter Owner s Manual...

Страница 2: ...AKES NO WARRANTY AS TO THE ACCURACY SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION 2 ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES...

Страница 3: ...n and wiring must comply with the Local and National Electrical Codes and must be done by a certified electrician Preventing electrical shock Always connect the grounding connection on the unit to the...

Страница 4: ...isk of dropping a metal tool on the battery It could spark or short circuit the battery or other electrical parts and could cause an explosion Remove metal items like rings bracelets and watches when...

Страница 5: ...t the diversion load if the current rating of the controller is exceeded Disconnec tion of the diversion load may damage the battery as well as the inverter or other DC loads connected to the battery...

Страница 6: ...d specifies the angle in degrees by which the current vector leads or lags the voltage vector in a sinusoidal voltage In a purely induc tive load the current vector lags the voltage vector by Phase An...

Страница 7: ...n averaged over a span of one cycle the net value of this power is 0 However on an instantaneous basis this power has to be provided by the AC source Hence the inverter AC wiring and over cur rent pro...

Страница 8: ...st ance when cold and higher resistance when hot As Tungsten heating element will be cold at the time of powering ON its resistance will be low and hence the device will draw very heavy surge of curre...

Страница 9: ...lements like motor driven tools refrigeration compressors microwaves computers audio video etc The Power Factor of this type of load is 1 e g AC motors PF 0 4 to 0 8 Transformers PF 0 8 AC to DC Switc...

Страница 10: ...by the higher harmonic frequencies These capaci tors are used in ballasts for fluorescent lighting for Power Factor improvement and in single phase induction motors as Start and Run Capacitors Thus Mo...

Страница 11: ...ge Power Rating to accommodate high short duration surge of power required during start up of certain AC appliances and devices Please read details of the above two types of power ratings in Section 2...

Страница 12: ...andescent Halogen Quartz Lamps 3 Laser Printer Other Devices using Infrared Quartz Halogen Heaters 4 Switch Mode Power Supplies SMPS no Power Factor correction 2 Photographic Strobe Flash Lights 4 See...

Страница 13: ...quality of connecting wires and cables etc EMI due to factors external to the inverter may be reduced as follows Ensure that the inverter is firmly grounded to the ground system of the building or the...

Страница 14: ...tate input current of SMPS is a train of non linear pulses instead of a sinusoidal wave These pulses are two to four milliseconds duration each with a very high Crest Factor of around 3 Crest Factor P...

Страница 15: ...Fig 4 1 Inrush current in an SMPS TIME Peak Current RMS Current Non linear Input Current Pulse Input Sine Wave Voltage Crest Factor Peak Current 3 RMS Current Voltage Voltage Current Current NOTE Volt...

Страница 16: ...ative direction and slowly increases in the Negative direction to a peak Negative value Vpeak 325 22V and then slowly drops back to 0V There are 50 such cycles in 1 sec Cycles per second is called the...

Страница 17: ...l is used to connect the metal chassis of the inverter to the Earth Ground Terminal of the premises where the inverter is installed 8 Negative DC Input Terminal 9 Positive DC Input Terminal 10 Modular...

Страница 18: ...second The Capacity C in Ah relates to the ability of the battery to provide a constant specified value of discharge current also called C Rate See Section 7 6 over a specified time in hours before th...

Страница 19: ...led the Capacity of the battery and is designated by the symbol C The time in Hours over which the battery is discharged to the End Point Voltage for purposes of specifying Ah capacity depends upon th...

Страница 20: ...ing and discharging characteristics of a typical 12V 24V 48V Lead Acid battery at electrolyte temperature of 80 F 26 7 C The curves show the State of Charge X axis versus terminal voltage Y axis durin...

Страница 21: ...4V inverter However if it is discharged at a rate of 50 Amperes 500W output for a 12V inverter and 1000W output for a 24V inverter then theoretically it should provide 100 Ah 50 2 Hours However Table...

Страница 22: ...nput terminals considering that the DC input cables are thick enough to allow a negligible voltage drop between the battery and the inverter Inverters are provided with a buzzer alarm to warn that the...

Страница 23: ...pletely Discharged 0 SOC 12V 24V 48V 12V 24V 48V C 3 A 10 45V 20 9V 41 8V 09 50V 19 0V 38 0V C 5 A 10 90V 21 8V 43 6V 10 30V 20 6V 41 2V C 10 A 11 95V 23 9V 47 8V 11 00V 22 0V 44 0V C 20 A 11 85V 23 7...

Страница 24: ...tery capacity varies with temperature Battery capacity is also a function of age and charging history Older batteries have lower capacity because of shedding of active materials sulfation corrosion in...

Страница 25: ...he Negative terminal of Battery 2 is connected to the Positive terminal of Battery 1 The Negative terminal of Battery 1 becomes the Negative terminal of the 48V battery bank 7 15 2 Parallel Connection...

Страница 26: ...arly two 24V 200 Ah Battery Banks 3 and 4 are connected in series to form a 48V 200 Ah Battery Bank String 2 These two 48V 200 Ah Strings 1 and 2 are connected in parallel to form a 48V 400 Ah bank CA...

Страница 27: ...quired from the battery DC current to be delivered A x Time in Hours H The first step is to estimate the total AC Watts W of load s and for how long the load s will operate in hours H The AC Watts are...

Страница 28: ...d at 10 to 13 of their Ah capacity Ah capacity based on C Rate of 20 Hr Discharge Time Also for complete charging return of 100 capacity of Sealed Lead Acid Battery it is recommended that a 3 Stage Ch...

Страница 29: ...Against Fire Hazard The unit is not ignition protected and should not be located under any circumstance in an area that contains highly flammable liquids like gasoline or propane as in an engine comp...

Страница 30: ...e shown in Fig 8 1 below PST 600 dimensions NEG NEG WARNING Reverse polarity will damage the unit AVERTISSEMENT Inversion de polarit peut endommager l unit POS 228 240 6 5 7 5 5 5 1 6 1 6 82 32 32 162...

Страница 31: ...mmended fan opening facing up or down As explained above this is to prevent falling of objects into the unit through the fan opening when the fan opening faces up If fan opening faces down hot damaged...

Страница 32: ...low and may also cause permanent damage to the inverter 8 4 3 Connection from Batteries to the DC Input Side Sizing of Cables and Fuses CAUTION The input section of the inverter has large value capaci...

Страница 33: ...re Effects of low voltage on common electrical loads are given below Lighting circuits incandescent and Quartz Halogen A 5 voltage drop causes an approxi mate 10 loss in light output This is because t...

Страница 34: ...he inverter 8 4 5 Recommended Sizes of Battery Cables and Fuses Sizes of cables and fuses are shown in Table 8 2 Sizing is based on safety considerations speci fied in NEC 2014 Please refer to Notes f...

Страница 35: ...ween the unit and the battery to cover 2 lengths of Positive and Negative cable conductors ii Resistance of the cable is based on Table 8 1 Fuse in the battery circuit is primarily required for protec...

Страница 36: ...simple jumper cable with a male plug on both ends to connect the AC output of the inverter to a handy wall receptacle in the home 8 5 1 AC Output Receptacle For AC output connection the inverter uses...

Страница 37: ...inverter the metal chassis Ground of the AC load is automatically connected to the Earth Ground Terminal of the premises where the inverter is installed WARNING As explained above in Schuko Receptacl...

Страница 38: ...ould be changed only after switching the inverter to OFF condition first 9 2 SWITCHING THE INVERTER ON OFF Before switching on the inverter check that all the AC loads have been switched OFF and the d...

Страница 39: ...to 45 C 3 C Please note that the fan may not come on at low loads or if the ambient temperature is cooler This is normal 9 5 INDICATIONS FOR NORMAL OPERATION When the inverter is operating normally a...

Страница 40: ...on of the AC output voltage waveform and hence the RMS voltage also drops The extent of volt age drop is proportional to the rated surge current of the load minus 4 35A Hence higher surge current of t...

Страница 41: ...ttery is running low and that the inverter will be shut down after sometime if the voltage at the inverter terminals further drops to 40 0V 0 5V or lower 10 3 LOW DC INPUT VOLTAGE SHUT DOWN If the vol...

Страница 42: ...the DC side fuse is blown the inverter will be dead The Green LED marked POWER 2 Fig 6 1 will be switched OFF and there will be no AC output i INFO Reverse polarity connection is likely to damage the...

Страница 43: ...current over the required length Use thicker cables if required Tighten connections of battery input circuit Reduce load AC output voltage is available Buzzer alarm is sounded at no load or when load...

Страница 44: ...er power rating If the unit goes into permanent overload again after resetting and removing the load completely the unit has become defective Call Technical support NOTE The unit will be latched in th...

Страница 45: ...SHORT CIRCUIT SHUTDOWN When output voltage drops to 160 VAC or lower for 1 to 1 5 sec OVERLOAD SHUTDOWN At overload of 110 to 115 for 2 to 2 5 sec OVER TEMPERATURE SHUTDOWN 90 C 5 C Auto reset at 65 C...

Страница 46: ...ng a reasonable number of opportunities to do so Warranty service shall be performed only by the Warrantor Any attempt to remedy the defect by anyone other than the Warrantor shall render this warrant...

Страница 47: ...SAMLEX AMERICA INC 47 NOTES...

Страница 48: ...85 Fax 1 888 814 5210 Local Numbers Ph 604 525 3836 Fax 604 525 5221 Website www samlexamerica com USA Shipping Warehouses Kent WA Plymouth MI Canadian Shipping Warehouse Delta BC Email purchase order...

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