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32  |  SAMLEX AMERICA INC.    

 

SECTION 7  |

 

 General Information on Lead Acid Batteries

7.10   STATE OF DISCHARGE OF A LOADED BATTERY – LOW BATTERY / DC INPUT 

VOLTAGE ALARM AND SHUTDOWN IN INVERTERS

Most inverter hardware estimate the State of Discharge of the loaded battery by measuring the voltage at 
the inverter’s DC input terminals (considering that the DC input cables are thick enough to allow a negligible 
voltage drop between the battery and the inverter).

The State of Discharge of a battery is estimated based on the measured terminal voltage of the battery. 
The terminal voltage of the battery is dependent upon the following:
-  Temperature of the battery electrolyte: Temperature of the electrolyte affects the electrochemical 

reactions inside the battery and produces a Negative Voltage  
Coefficient – during charging / discharging, the terminal voltage drops with rise in temperature and rises 
with drop in temperature. 

-  The amount of discharging current or “C-Rate”: A battery has non linear internal resistance and hence, 

as the discharge current increases, the battery terminal voltage decreases non-linearly.

The discharge curves in Fig. 7.1 show the % State of Charge versus the terminal voltage of typical battery 
under different charge /discharge currents, i.e. “C-Rates” and fixed temperature of 80°F. 

NOTE:  The X-axis of Curves shown in Fig 7.1 indicates the % State of Charge. % State of charge may be 

converted to % State of Discharge using formula given below:

 

   % State of Discharge = 100% - % State of Charge

7.11  LOW DC INPUT VOLTAGE ALARM IN INVERTERS

Inverters are provided with audible alarm that is normally triggered when the voltage at the DC input 
terminals of the inverter has dropped to 80% discharged condition at C-Rate discharge current of C/5 
Amps. Please note that the terminal voltage relative to a particular of State Discharge decreases with rise in 
the value of the discharge current. For example, terminal voltages for State of Discharge of 80% (State of 
Charge of 20%) for various discharge currents will be as given at Table 7.5 (Refer to Fig 7.1 for parameters 
and values shown in Table 7.5):

TABLE 7.5  TERMINAL VOLTAGE AND SOC OF LOADED BATTERY

 

Discharge 

Current: C-Rate

Terminal Voltage at 80% 

State of Discharge (20% SOC)

Terminal Voltage When 

Completely Discharged (0% SOC)

24V

48V

24V

48V

C/3 A

20.8V

41.6V

19.0V

38.0V

C/5 A

21.8V

43.6V

20.4V

40.8V

C/10 A

23.0V

46.0V

22.0V

44.0V

C/20 A

23.8V

47.6V

23.0V

46.0V

C/100 A

24.2V

48.4V

23.4V

46.8V

The threshold of Low DC Input Voltage Alarm is programmable in this Inverter through parameter "UV 
Alarm" (UV stands for "Under Voltage). Default "UV Alarm" is 21.5V for PSR-1200-24 and 43.0V for PSR-
1200-48. For programming details, refer to Fig 10.1 / Table 10.1 under Main Menu for Parameter Group 2 – 
"Input Setup" / Sub Menu for Parameter Group 2, Parameter (f) – "UV Alarm" (Section 10.2.2.6).

Содержание PSR-1200-24

Страница 1: ...DC AC Power Inverter Pure Sine Wave PSR 1200 24 PSR 1200 48 Please read this manual BEFORE installing your inverter Owner s Manual ...

Страница 2: ...isclaimer of Liability UNLESS SPECIFICALLY AGREED TO IN WRITING SAMLEX AMERICA INC 1 MAKES 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 DAMAGES COSTS OR EXPENSES WHETHER SPECIAL DIRECT INDIRECT CONSEQUENTIAL OR INCIDENTAL WHICH MIGHT ARISE OUT OF THE...

Страница 3: ...of damage to the equipment in case of non compliance i INFO Indicates useful supplemental information Please read these instructions before installing or operating the unit to prevent personal injury or damage to the unit 1 2 SAFETY INSTRUCTIONS GENERAL WARNING Installation and wiring compliance Installation and wiring must comply with the Local and National Electrical Codes and must be done by a ...

Страница 4: ...mable materials or gases requiring ignition protected equipment These areas may include spaces containing gasoline powered machinery fuel tanks and battery compartments WARNING Precautions when working with batteries Batteries contain very corrosive diluted Sulphuric Acid as electrolyte Precautions should be taken to prevent contact with skin eyes or clothing Batteries generate Hydrogen and Oxygen...

Страница 5: ...r PSR 1200 48 Do not use unregulated solar panels to charge the battery connected to this unit Under cold ambient temperatures the output of the solar panel array may reach higher than the limiting voltages specified above Always use a charge controller between the solar panel and the battery When using Diversion Charge Control Mode in a charge controller the solar wind hydro source is directly co...

Страница 6: ...oted by I and the unit is Amperes shown as A It is the flow of electrons through a conductor when a voltage V is applied across it Frequency F Hz It is a measure of the number of occurrences of a repeating event per unit time For example cycles per second or Hertz in a sinusoidal voltage Efficiency η This is the ratio of Active Power Output in Watts Active Power Input in Watts Phase Angle φ It is ...

Страница 7: ...ce in the half cycle of the sinusoidal voltage Negative value Hence when 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 current protection devices have to be sized based on the combined effect of the Active and Reactive Powers that is called the Apparent Power ...

Страница 8: ... Please see Section 4 for more details on SMPS When this power supply is switched ON its internal input side capacitors start charging resulting in very high surge of Inrush Current for a few millisecs Please see Fig 4 1 This surge of inrush current power may reach up to 15 times the Continuous Maximum Running Power Rating The surge of inrush current power will however be limited by the Surge Powe...

Страница 9: ...anging phase angle and also changes its polarity instantly when it crosses 0 Volts In a Modified Sine Wave the voltage rises and falls abruptly the phase angle also changes abruptly and it sits at zero V for some time before changing its polarity Thus any device that uses a control circuitry that senses the phase for voltage speed control or instantaneous zero voltage crossing for timing control w...

Страница 10: ...rol may not function Sewing machines with speed microprocessor control Transformer less capacitive input powered devices like i Razors flashlights nightlights smoke detectors etc ii Some re chargers for battery packs used in hand power tools These may get damaged Please check with the manufacturer of these types of devices for suitability Devices that use radio frequency signals carried by the AC ...

Страница 11: ...Running Power Rating Active Power Rating in Watts of the appliance device by recommended Sizing Factor to arrive at the Maximum Continuous Running Power Rating of the inverter TABLE 2 1 INVERTER SIZING FACTOR Type of Device or Appliance Inverter Sizing Factor See note 1 Air Conditioner Refrigerator Freezer Compressor based 5 Air Compressor 4 Sump Pump Well Pump Submersible Pump 3 Dishwasher Clothe...

Страница 12: ...r of factors external to the inverter like proximity of the inverter to the EMI receptors types and 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 vehicle Locate the inverter as far away from the EMI receptors like radio audio and video devices a...

Страница 13: ... RMS value Many SMPS units incorporate Inrush Current Limiting The most common method is the NTC Negative Temperature Coefficient resistor The NTC resistor has a high resistance when cold and a low resistance when hot The NTC resistor is placed in series with the input to the power supply The cold resistance limits the input current as the input capacitors charge up The input current heats up the ...

Страница 14: ...eviation of up to 7 Hz This allows safer transfer with faster transfer time of 8ms NOTE When using Generator or other AC source that have poor frequency stability frequency deviation of 7 Hz the Inverter will not be able to synchronize with these input sources and hence bypass will not be allowed Unsynchronized Transfer option may be used in this case Space saving 1U height design for 19 Rack Moun...

Страница 15: ... second stage the high voltage DC is converted to 120VAC Default 60Hz Default pure sine wave AC again using PWM technique This is done by using special wave shaping technique where the high voltage DC is switched at high frequency and the pulse width of switching is modulated with respect to reference sine wave High frequency components are then filtered to get modulated pure sine wave form 5 3 1 ...

Страница 16: ...20R Duplex AC Outlet 17 Fig 6 2 N Wire Jumper J2 J3 Metal Chassis Ground of the unit Fig 5 1 Connection Diagram of Transfer N G Bond Switching Relays LEGEND FOR FIG 5 1 Item Description RL 1 RL 2 i Relay Double Pole Normally Open DPNO Contact Form 2A 16A 250 VAC ii Energized as soon as AC GRID input is available These 2 relays are powered by 12 VDC Switched Mode Power Supply SMPS fed from AC GRID ...

Страница 17: ...irement Refer to Fig 5 1 Relays RL 1 for Line L side and RL 2 for Neutral N side are in de energized condition if AC GRID input is NOT available These 2 relays will be energized as soon as AC GRID is available irrespective of the position of the Front Panel On Off Rocker Switch 1 Fig 6 1 12VDC power for energization of these 2 relays is supplied by internal Switched Mode Power Supply SMPS that is ...

Страница 18: ...nt shut down protection However if the unit is being used as a UPS and is fed from AC GRID Supply Panel it will be considered NOT Separately Derived System but as a downstream load as far as the AC GRID Supply Panel is concerned The AC GRID Supply Panel will have its Neutral bonded to the Earth Ground through the Ground Rod As per NEC it is not permitted to bond the Neutral and Equipment Ground me...

Страница 19: ...e Section 10 2 3 4 As compared to the Off line Mode described at Section 5 5 1 above in On line Mode the AC load is supplied by the conditioned power from the Inverter rather than raw unconditioned power from the AC GRID input On line Mode is often called Double Conversion type because incoming power is converted once to DC for the battery and then back to AC by the Inverter before reaching the lo...

Страница 20: ...u for Parameter Group 3 Parameter b OUTPUT FREQ Section 10 2 3 2 5 6 4 Programmable Parameter Sync FREQ for Determining Synchronizable Frequency Window As described in Section 5 6 2 above for safer and faster transfer of load between 2 AC sources it is desirable that the frequency and phase of the Backup Power Source i e the Inverter in this unit be kept synchronized with the AC GRID input at all ...

Страница 21: ...m within 8 ms Frequency of AC GRID input voltage is NOT within the Synchronizable Frequency Window determined by the parameter SyncFREQ see Section 5 6 4 AC GRID input will be the Primary AC Source and the Inverter will be the Backup AC Source As the AC GRID input is NOT within the Synchronizable Frequency Window it will NOT be bypassed The load will be supplied by the Inverter The frequency of In...

Страница 22: ...be transferred back to the Inverter at zero crossing of the voltage waveform within 8 ms Frequency of AC GRID input voltage is NOT within the Synchronizable Frequency Window determined by the parameter SyncFREQ see Section 5 6 4 Inverter will be the Primary AC Source and AC GRID input will be the Backup AC Source The load will be supplied by the Inverter at a frequency that is closest to the AC GR...

Страница 23: ... AC GRID input will be bypassed to the load even if its frequency is not within Synchronizable Frequency Window Inverter output frequency will be FIXED at the programmed value of parameter Output FREQ Default value is 60Hz LED marked AC GRID Green Orange LED marked INVERTER Green LED marked BYPASS Green LED marked ALARM Off Green if AC GRID input frequency is within the Synchronizable Frequency Wi...

Страница 24: ...the Synchronizable Frequency Window determined by the parameter Sync FREQ see Section 5 6 4 Inverter failure If Inverter fails the load will be transferred to the AC GRID input Frequency of AC GRID input voltage may or may NOT be within the Synchronizable Frequency Window determined by the parameter SyncFREQ see Section 5 6 4 LED marked AC GRID Green Orange LED marked INVERTER Red LED marked BYPAS...

Страница 25: ...er is ON when switch is ON ON OFF switch Fuse External DC voltage source 10 to 40 VDC for PSR 1200 24 20 to 60 VDC for PSR 1200 48 current draw 6mA 10 to 40 VDC for PSR 1200 24 20 to 60 VDC for PSR 1200 48 NO COM ENB GND ENB NC Inverter is ON when switch is ON ON OFF switch NPN Transitor Switch Vcc return Vcc 9 Base drive Base High Transistor is ON The unit will switch ON Base Low Transistor is OF...

Страница 26: ... monitoring of the following 6 alarm fault conditions through contact switching See Fig 5 6 below 1 Fan Fault 2 Over Voltage OV Alarm 3 Under Voltage UV Alarm 4 Overload Shut Down 5 Over Temperature Shut Down 6 Short Circuit Shut Down The relay contacts may be used to switch external monitoring circuits of up to 277 VAC 16A The relay can be programmed through Parameter Relay Setup to energize when...

Страница 27: ...aracters each 7 Display Selection Keys for navigating through the LCD Display Screens and for programming 8 a Air inlet slots for 3 cooling fans fans located behind the slots not visible 8 b 3 cooling fans located behind the inlet slots 8 a the fans are not visible from outside 9 Mounting brackets for rack mount installation 10 Negative DC Input Terminal 11 Positive DC Input Terminal 12 7 Way Term...

Страница 28: ...See Section 7 6 over a specified time in hours before the battery reaches a specified discharged terminal voltage Also called End Point Voltage at a specified temperature of the electrolyte As a benchmark the automotive battery industry rates batteries at a discharge current or C Rate of C 20 Amperes corresponding to 20 Hour discharge period The rated capacity C in Ah in this case will be the numb...

Страница 29: ...y high discharge current the battery will be discharged to the End Point Voltage in a shorter period of time On the other hand if the battery delivers a lower discharge current the battery will be discharged to the End Point Voltage after a longer period of time Mathematically EQUATION 1 Discharge current C Rate Capacity C in Ah Discharge Time T Table 7 2 below gives some examples of C Rate specif...

Страница 30: ...0 90 100 110 120 130 C 5 C 40 C 20 C 10 DISCHARGE CHARGE C 20 C 3 C 5 C 10 C 100 33 0 32 0 31 0 30 0 29 0 28 0 27 0 26 0 25 0 24 0 23 0 22 0 21 0 20 0 19 0 18 0 66 0 64 0 62 0 60 0 58 0 56 0 54 0 52 0 50 0 48 0 46 0 44 0 42 0 40 0 38 0 36 0 24V 48V Fig 7 1 Charging Discharging Curves for 24V 48V Lead Acid Batteries 7 8 REDUCTION IN USABLE CAPACITY AT HIGHER DISCHARGE RATES TYPICAL IN INVERTER APPL...

Страница 31: ...o it can approximately indicate the State of Charge SOC of the battery The Standing Voltage is measured after disconnecting any charging device s and the battery load s and letting the battery stand idle for 3 to 8 hours before the voltage measurement is taken Table 7 4 shows the State of Charge versus Standing Voltage for a typical 12V 24V 48V battery system at 80 F 26 7ºC TABLE 7 4 STATE OF CHAR...

Страница 32: ... of Curves shown in Fig 7 1 indicates the State of Charge State of charge may be converted to State of Discharge using formula given below State of Discharge 100 State of Charge 7 11 LOW DC INPUT VOLTAGE ALARM IN INVERTERS Inverters are provided with audible alarm that is normally triggered when the voltage at the DC input terminals of the inverter has dropped to 80 discharged condition at C Rate ...

Страница 33: ...12 2 Referring to the Discharge Curves given in Fig 7 1 the State of 100 Discharge for various C Rate discharge is as follows 19 0V at very high C rate discharge current of C 3 Amps 20 5V at high C Rate discharge current of C 5 Amps 22 0V at lower C rate Discharge current of C 10 Amps It is seen from the above that the terminal voltage at 100 discharged condition varies with the C rate discharge c...

Страница 34: ... series their voltages add up but their Ah capacity remains the same Fig 7 2 shows 4 pieces of 12V 200 Ah batteries connected in series to form a battery bank of 48V with a capacity of 200 Ah The Positive terminal of Battery 4 becomes the Positive terminal of the 48V bank The Negative terminal of Battery 4 is connected to the Positive terminal of Battery 3 The Negative terminal of Battery 3 is con...

Страница 35: ...n series to form a 48V 200 Ah Battery Bank String 1 Similarly 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 CAUTION When 2 or more batteries battery strings are connected in parallel and are then connected to an inverter or charger See Figs 7 3 and 7 4 ...

Страница 36: ...proximate DC current to be delivered by the 48V batteries 1000W 40 25 Amperes Next the energy required by the load in Ampere Hours Ah is determined For example if the load is to operate for 3 hours then as per Formula 3 above the energy to be delivered by the 48V batteries 25 Amperes 3 Hours 75 Ampere Hours Ah Now the capacity of the batteries is determined based on the run time and the usable cap...

Страница 37: ...on will be superseded by the National Local Electrical Codes related to the location of the unit and the specific application 8 0 INSTALLATION ACCESSORIES SUPPLIED WITH THE UNIT Following accessories have been provided with the unit a AC Power Cord for AC input b Pin Type Lugs for DC input wiring PSR 1200 24 PTNB 35 20 2 pieces PSR 1200 48 PTNB 10 12 2 pieces c Spare set screws for DC Input Termin...

Страница 38: ... Battery Bank Locate the unit as close to the battery bank as possible to prevent excessive voltage drop in the battery cables and consequent power loss and reduced efficiency However the unit should not be installed in the same compartment as the batteries flooded or wet cell or mounted where it will be exposed to corrosive acid fumes and flammable Oxygen and Hydrogen gases produced when the batt...

Страница 39: ...d the location of the mounting slots for PSR 1200 24 and PSR 1200 48 are shown at Fig 8 1 Overall dimensions 482 x 386 8 x 44 mm W x D x H 19 x 15 24 x 1 73 in 31 31 420 465 482 121 92 92 345 386 8 16 8 25 32 8 5 R 3 5 44 6 Fig 8 1 PSR 1200 24 PSR 1200 48 Overall Dimensions Mounting Arrangement ...

Страница 40: ...nit through the fan opening when the fan opening faces up If fan opening faces down hot damaged component may fall out The surface of the unit is likely to be at elevated temperature in conditions of higher load and higher ambient temperature Hence the unit should be installed in a manner where it is not likely to come in contact with any person 8 4 DC SIDE CONNECTIONS 8 4 1 Preventing DC Input Ov...

Страница 41: ...nd Fuses CAUTION The input section of the inverter has large value capacitors connected across the input terminals As soon as the DC input connection loop Battery terminal Ò External Fuse Ò Positive input terminal of the Inverter Ò Negative input terminal of the Inverter Ò Battery terminal is completed these capacitors will start charging and the unit will momentarily draw very heavy current to ch...

Страница 42: ... in light output AC induction motors These are commonly found in power tools appliances well pumps etc They exhibit very high surge demands when starting Significant voltage drop in these circuits may cause failure to start and possible motor damage PV battery charging circuits These are critical because voltage drop can cause a disproportionate loss of charge current to charge a battery A voltage...

Страница 43: ... is not less than 125 of the rated DC input current Column 2 Refer to NEC 2014 National Electrical Code Section 215 2 A 1 a for Feeder Circuits 3 Column 4 indicates the size of external fuse in the battery circuit It is mandatory to install this fuse within 7 of the battery Positive terminal to protect the battery cables against short circuit Amp rating of the fuse is based on the following consid...

Страница 44: ...are wire end To ensure firm contact 2 pieces of pin type terminal lugs have been provided as follows For PSR 1200 24 2 Lugs Type PTNB 35 20 for wire size AWG 2 35 mm2 For PSR 1200 48 2 Lugs Type PTNB 10 12 for wire size AWG 8 10 mm2 8 4 7 Reducing RF Interference Please comply with recommendations given in Section 3 Limiting Electromagnetic Interference 8 5 AC SIDE CONNECTIONS WARNING 1 The AC out...

Страница 45: ... of the inverter to the Earth Ground or to the other designated Ground An equipment grounding Lug 16 Fig 6 2 has been provided for grounding the metal chassis of the inverter to the Earth Ground or to the other appropriate Ground When using the inverter in a building connect a 10 mm2 or AWG 8 insulated stranded copper wire from the above equipment grounding lug to the Earth Ground connection a con...

Страница 46: ... 3 4 will be closed As the In verter section is OFF not supplying the load the Normally Closed NC contacts of Relays RL 4 and RL 5 will bypass the AC GRID input voltage to the AC Outlets 17 Fig 6 2 9 2 POWERING ON THE LOADS After the Inverter is switched on it takes a finite time for the inverter to be ready to deliver full power Hence always switch on the load s after a few seconds of switching o...

Страница 47: ... LED marked BYPASS is Green Green LED under above Condition 1 indicates the following Inverter output is being bypassed to the load Green LED under above Condition 2 indicates the following Inverter is in standby condition AC GRID input is being bypassed to the load Red Red LED indicates the following Inverter is in Fault Mode OFF When LED is off it indicates the following Inverter has been switch...

Страница 48: ...d as On Line Mode has been selected Load is being powered by the Inverter ALARM Orange Orange LED indicates activation of following protections leading to shut down of the Inverter Section Short Circuit Overload Over temperature Fan failure Over Voltage OV Protection Under Voltage UV Protection 9 5 LCD DISPLAY FOR MONITORING OF OPERATING PARAMETERS LCD Display 6 Fig 6 1 is used for monitoring vari...

Страница 49: ...are available under Startup display and Dash Board for real time visual monitoring of important operating parameters Refer to the Startup Display and Dash Board portions of the Menu Map at Fig 10 1 Details of LCD display of the operating parameters are explained in the succeeding Sections 9 6 STARTUP DISPLAY Refer to Startup Display portion of the screens at Fig 9 1 extracted from Fig 10 1 When th...

Страница 50: ...will display the Screen that was being shown EARLIER TABLE 9 2 DASHBOARD SCREENS Dash Board Screen 1 I n v V 1 2 0 0 VAC G r i d V 1 1 0 0 VAC Dash Board Screen 1 for AC Voltage Screen 1 displays the Inverter Voltage Inv V and the Grid Voltage Grid V Pressing the Right Key will change the display to Screen 2 for AC Current Pressing the Left Key will change the display to Screen 5 for DC input volt...

Страница 51: ... the display to Screen 3 for AC Power NOTE In Inverter Mode the output frequency will be equal to the Inverter Frequency Inv F In Pass through Mode the output frequency will be equal to Grid Frequency Grid F Press the Right Key to change to Screen 5 Press the Left Key to change to Screen 3 Dash Board Screen 5 V i n 2 4 0 VDC Dash Board Screen 5 for DC Input Voltage Screen 5 displays the DC Input V...

Страница 52: ...RED USB RS 232 SERIAL COMMUNICATION PROTOCOL A remote computer with appropriate Terminal Emulator Program may be used to communicate with the unit through wired USB RS 232 Serial Communication Protocol Specified text commands are used to check the status of various operating parameters and alarm fault warnings Specified text commands are also used to query the status change the value of all the pr...

Страница 53: ...r t e m p E n a b l e d 6 S h o r t E n a b l e d a L C D C o n t r a s t V b L C D A u t o O f f V c R S 2 3 2 S p e e d V d U S B V c o m S p e e d V e B u z z e r S e t u p V f R e l a y S e t u p V SUB MENU for Parameter Group 1 Setup Screens for Sub Menu Items for Group 1 Parameters Sub Sub Menu for Buzzer Setup Option between Enabled or Disabled is switched by successive pressing of Down Key...

Страница 54: ...abled Enabled Disabled 2 OV Alarm OV Over Voltage Enabled Enabled Disabled 3 UV Alarm UV Under Voltage Enabled Enabled Disabled 4 Overload Enabled Enabled Disabled 5 Overtemp Over Temperature Enabled Enabled Disabled 6 Short Short Circuit Enabled Enabled Disabled f Relay Setup 1 Fan Fault Enabled Enabled Disabled 2 OV Alarm OV Over Voltage Enabled Enabled Disabled 3 UV Alarm UV Under Voltage Enabl...

Страница 55: ... Sync FREQ Synchronizable Frequency 0 1 to 7 0 Hz 5 0 Hz d Inverter Mode Off Line OR On Line Off Line e Main Menu Synch OR Unsynch Synchronized OR Unsynchronized Synch f OL Protect Overload Protection 100 to 110 110 Group 4 Parameters 4 Default Sure to Reset Yes OR No 10 sec countdown to select Yes No Group 5 Parameters 5 FW Version Main Ctrl Main Controller x x xxxx Output Ctrl Output Controller ...

Страница 56: ...CD contrast will be reset to the Default value of 50 10 2 1 2 b LCD Auto Off This parameter can be programmed to control the time the LCD is required to remain in ON condition Programmable range is i 20 to 180 sec Default is 60 sec or ii DISABLE i e ON all the time When the LCD Display is in Auto Off condition it can be switched back to the Startup Display Screen by pressing the Down Key To switch...

Страница 57: ...hort Short Circuit Enabled Enabled Disabled 10 2 1 6 f Relay Setup An internal SPDT Relay Contact rating 240VAC 16A has been provided for signaling of any one or combination of 6 types of alarm and fault conditions Options and Default settings are shown below Default setting is Enabled for all the 6 conditions which means that the relay will be energized if any one of the 6 alarm fault condition i...

Страница 58: ...lt c UVP Setting Under Voltage Protection Setting PSR 1200 24 17 0 to 23 0 VDC 20 0 VDC PSR 1200 48 34 0 to 46 0 VDC 40 0 VDC 10 2 2 4 d UVP Recovery Sets the voltage threshold for automatic recovery reset from UVP condition explained at Section 11 2 2 3 above Parameter Programmable Range Default d UVP Recovery Under Voltage Protection Recovery PSR 1200 24 17 5 to 23 5 VDC 23 0 VDC PSR 1200 48 35 ...

Страница 59: ...nge Default f UV Alarm Under Voltage Alarm PSR 1200 24 17 0 to 23 0 VDC 21 5 VDC PSR 1200 48 34 0 to 46 0 VDC 43 0 VDC NOTE UV Alarm hysteresis is as follows i 0 5V for PSR 1200 24 The UV Alarm will automatically reset when the voltage rises to 0 5V above the programmed UV setting ii 1 0 V for PSR 1200 48 The UV Alarm will automatically reset when the voltage rises to 1 0V above the programmed UV ...

Страница 60: ...ower and the Inverter is the backup source On Line Mode In this mode the Inverter is the primary source of power and the AC GRID input is the backup source of power Refer to Section 5 5 for details of On Line and Off Line modes of operation Parameter Programmable Range Default d Inverter Mode Off Line or On Line Off Line 10 2 3 5 e Transfer Type The AC load can be transferred between the AC GRID a...

Страница 61: ...roup 5 Sub Menu to go back to the Group 5 Main menu FW Version Group 5 of Main Menu FW Version leads to 3 Sub Menu screens that provide Firmware FW Version Nos for the following 3 Micro Controllers see Fig 10 2 Main micro controller Main Ctrl Micro controller for output power monitoring Output Ctrl Micro controller for Ethernet Ethernet When in Main Menu Group 5 Screen FW Version press the Down Ke...

Страница 62: ...vided into 6 Parameter Setup Groups 1 to 6 that are displayed in the Main Menu e g Parameter Setup Group 3 is for parameters related to Output Setup See Column 2 in Table 10 1 and Menu Screen in Fig 10 1 Parameters included in a Parameter Setup Group are displayed in the Sub Menu for that Group see Column 3 of Table 10 1 and Sub Menu screens in Fig 10 1 For example parameter Output V is displayed ...

Страница 63: ...ws that pressing the Down Key will i enter SUB MENU Screen 2 from MAIN MENU Screen 1 or ii Setup Screen Screen 3 from SUB MENU Screen 2 Sub Menu Item Screens L CD C o n t r a s t 5 0 Screen 5 Example 1 Changing parameter value Screen 5 on the left The 1st line of the screen shows the following 1st line center Name of the Parameter 2nd line center Value of the parameter when the parameter setup scr...

Страница 64: ...meter a OVP Setting as shown on the right a OV P S e t t i n g V 5 Press the Down Key to move to the Setup Screen for parameter OVP Setting as shown on the right Default value of 34 0 V will be displayed OV P S e t t i n g 3 4 0 V In this screen pressing the Right key increases the value pressing the Left Key reduces the value 6 Use the Right Key to increase the value to say 34 5V as shown on the ...

Страница 65: ...ion 10 2 1 5 Parameter Fault Alarm Options Default e Buzzer setup 1 Fan Fault Enabled Enabled Disabled 2 OV Alarm OV Over Voltage Enabled Enabled Disabled 3 UV Alarm UV Under Voltage Enabled Enabled Disabled 4 Overload Enabled Enabled Disabled 5 Overtemp Over Temperature Enabled Enabled Disabled 6 Short Short Circuit Enabled Enabled Disabled 11 2 2 Relay based Wired Remote Signaling of Alarm and F...

Страница 66: ...The inverter should be able to handle such spikes without interrupting the operation or the function of the load Therefore rather than size the inverter for the worst case short duration surge peak current a good alternative would be to use an inverter that can handle the short term surge peak current yet provide non peak continuous steady state operating current This inverter has Surge Peak Surge...

Страница 67: ...ndition If there is a short circuit on the AC output load side the 12A input side circuit breaker 19 Fig 6 2 or the external AC Panel breaker feeding the AC GRID input will trip The short circuited AC output load side will then be transferred to the Inverter The inverter will then shut down as described above at Section 11 5 1 under Short Circuit Protection when AC GRID input is NOT available 11 5...

Страница 68: ...than the value of UV Alarm See Table 11 2 under Under Voltage Alarm for status of front panel LEDs and LCD messaging resulting from this condition TABLE 11 1 PROTECTIONS RESULTING IN SHUT DOWN OF INVERTER Protection and reset AC GRID input conditions Front panel LED marked AC GRID 2 Fig 6 1 Front panel LED marked INVERTER 3 Fig 6 1 Front panel LED marked BYPASS 4 Fig 6 1 Front Panel LED marked ALA...

Страница 69: ...Over Temperature Protection Temperature of either of two hot spots near two heat sinks sensed by NTC1 and NTC2 is higher than 105 C Automatic reset When the temperature drops to 85 C AC Grid input available Green Orange Red Green Orange On Energized Warning Over temperature protection AC Grid input not available Off Red Off Orange On Energized Over Voltage Protection DC input voltage is higher tha...

Страница 70: ...ff Green Off Orange On Energized Under Voltage Alarm DC input voltage is lower than the value of parameter UV Alarm Automatic reset PSR 1200 24 0 5V higher than UV Alarm PSR 1200 48 1 0V higher than UV Alarm value AC Grid input available Green Orange Green Green Orange On Energized Warning Under voltage detected AC Grid input not available Off Green Off Orange On Energized 11 3 WEB BROWSER BASED R...

Страница 71: ...tive DC input terminal of the inverter and the Negative of the battery wrongly connected to the Positive DC input terminal of the inverter will blow the external internal DC side fuses If the DC side fuse is blown the Inverter will be dead However if AC GRID input is available it will bypassed through withe the following indications LED marked AC GRID will be GREEN LED marked INVERTER will be OFF ...

Страница 72: ...ment the asynchronous serial transmission control The byte structure is START BIT 8 BIT DATA STOP BIT 12 2 RS 232 PORT This unit uses a standard 9 pin D connector Male and three of the RS 232 signal lines The connection between this unit and the computer is as follow Computer RDX TXD GND DTR DSR RTS CTS Power Inverter RDX TXD GND 12 3 USB PORT This unit uses a USB female single connector and the p...

Страница 73: ... will ignore all bytes more than this value During transmission this unit will reply corresponding information to a computer according to the commands sent by the user When a LF character ASCII code 0x0A is received this unit will begin to interpret the received information case sensitive and execute the command if it is valid When the unit receives an invalid command or fails to execute the unit ...

Страница 74: ...Return the output frequency Realtime Information 60 0 Hz get gvout get gvout Return the RMS of the Grid AC voltage Real time Information 120 1 V get giout get giout Return the RMS of the Grid AC current Real time Information 4 2 A get gpower get gpower Return the Grid AC real power Real time Information 980 1 W get gfreq get gfreq Return the Grid AC frequency Real time Information 60 0 Hz set get ...

Страница 75: ...ff get buzuvalarm Return whether the buzzer will beep when UV Alarm on set buzuvalarm off Buzzer will NOT Beep when UV Alarm OK set get buzoverload on off get buzoverload Return whether the buzzer will beep when overloading on set buzoverload off Buzzer will NOT Beep when overloading OK set get buzovertemp on off get buzovertemp Return whether the buzzer will beep when over temperature on set buzo...

Страница 76: ...pe Get Transfer Type synch set trantype synch Set Transfer Type to synch OK get set olprotect n get olprotect Get overload protection percentage of full load 110 set olprotect 90 Set overload protection percentage to 90 OK get relaystatus get relaystatus Get the current status of Bypass Relay Inverter Grid AC get set syncfreq n f get syncfreq Get synchronization frequency 7 0 Hz set syncfreq 5 5 S...

Страница 77: ...92 168 1 100 Configure static IP as 192 168 1 100 OK get set ipcfggateway get ipcfggateway Return manually configured Gateway IP 192 168 1 1 set ipcfggateway 192 168 1 1 Configure Gateway IP as 192 168 1 1 OK get set ipcfgmask get ipcfgmask Return manually configured subnet mask 255 255 255 0 set ipcfgmask 255 255 255 0 Configure subnet mask as 255 255 255 0 OK get set ipcfgpdns get ipcfgpdns Retu...

Страница 78: ...68 0 10 13 1 2 For Static IP Refer to the Menu Map for Programmable Operating Parameters at Fig 10 1 Section 10 From any of the LCD Operating Parameter Screens in the LCD Dashboard press the Down key to go the Main Menu for Parameter Group 1 UI Setting Press Right key 5 times to go to Parameter Group 6 Ethernet Press the Down key to go to Sub Menu for Parameter Group 6 Parameter a IP Address Press...

Страница 79: ...SAMLEX AMERICA INC 79 SECTION 13 Web Monitoring and SNMP Fig 13 1 Dashboard ...

Страница 80: ... Time output AC frequency HZ Grid Frequency Real Time output AC frequency HZ Input Vin Real Time input DC voltage V OVP Over Voltage Protection V configured programmed by the user OVP Recovery OVP recovery voltage V configured programmed by the user UVP Under Voltage Protection V configured programmed by the user UVP Recovery UVP recovery voltage V configured programmed by the user OV Alarm Over V...

Страница 81: ...ower Monitoring Fig 13 3 displays the output power versus time Fig 13 3 Description of Items displayed in Dashboard at Fig 13 1 13 2 1 2 DC Input Voltage Vin Monitoring DC Input Voltage Vin Monitor Fig 13 4 displays the DC input voltage versus time Fig 13 4 DC Input Voltage Vin Monitor ...

Страница 82: ... Password Password is reset using programming facility available through the LCD Display on the unit 1 Refer to Menu Map for Programmable Operating Parameters at Fig 10 1 in Section 10 From any of the LCD Operating Parameter Screens in the Dashboard press the Down key to go to the Main Menu screen for Parameter Group 1 UI Settings Press Right key 5 times to go to Main Menu Screen for Parameter Gro...

Страница 83: ...e Login User field empty to skip the authentication process if SMTP Server do not require one Some SMTP servers require Transport Layer Security Thus the box Use TLS 1 1 Connection should be checked 13 3 4 From To The user s E Mail addresses are required Sending an E Mail to oneself is OK 13 3 5 Timing 13 3 5 1 Repeat Count The E Mail will be sent Count 1 times when the specified warning s occur c...

Страница 84: ...figuration 13 4 1 1 Enable SNMP Check this box to enable the whole functionality of SNMP 13 4 1 2 Read Write Community This is more like a Password Based communication mechanism between SNMP Agent This unit and SNMP Manager A management software on a specific computer under the same network 13 4 1 3 Trap Setup Check Enable Trap 1 or Enable Trap 2 to enable the functionality of SNMP Trap The IP Add...

Страница 85: ...Free version has been used This has been downloaded from http www dart com snmp free manager aspx Demonstration is shown below Fig 13 9 Demonstration Screen 1 for SNMP First select Tools LoadMIB to import the file samlexamerica mib Fig 13 9 The file samlexamerica mib is a text file which can be opened by any text editor such as Notepad And it is more like a dictionary to translate SNMP OID Object ...

Страница 86: ...86 SAMLEX AMERICA INC SECTION 13 Web Monitoring and SNMP Fig 13 11 Demonstration Screen 3 for SNMP Fig 13 10 Demonstration Screen 2 for SNMP ...

Страница 87: ... 11 Click Add Agent on the left bottom corner of Add SNMP Agents dialog Fig 13 12 Fig 13 12 Demonstration Screen 4 for SNMP Enter the IP address of this unit in the Address field and choose Version 2 Fig 13 13 Fig 13 13 Demonstration Screen 5 for SNMP Press OK Fig 3 13 Now we have an agent this unit on the left panel Fig 3 14 ...

Страница 88: ...g 13 14 and the value we want to monitor would appear on the center panel Fig 13 15 Whenever an abnormal situation is encountered a TRAP message is sent from the agent this unit every N seconds Configured in SNMP Config page if the situation continue The following picture shows the TRAP message received by the SNMP Manager Fig 13 15 Demonstration Screen 7 for SNMP ...

Страница 89: ...e situation continues The following picture Fig 13 16 shows the TRAP message received by the SNMP Manager Fig 13 16 Demonstration Screen 8 for SNMP The TRAP message will appear on the bottom panel Fig 13 16 and double click on the list Fig 13 16 will popup a detail version the TRAP message selected In the example in the above picture Fig 13 16 a FanFault and a OverTemperature situation are encount...

Страница 90: ...e Internet 14 1 FIRMWARE OPERATION MODE Be aware to keep the DC input Battery stable To enter Firmware Operation Mode press and simultaneously while turning ON the unit At least 0 1 s Firmware OP Mode will be shown on the LCD panel Then connect RS 232 or USB Virtual COM to the computer Set Serial COM Port Baudrate to 76800 bps Fig 14 1 and uncheck Local echo Fig 14 2 Press Enter Content as shown i...

Страница 91: ...lect a target to upgrade In the example below Fig 14 5 Serial 1 Main Controller has been selected You will be asked to confirm the selection Fig 14 6 and then the existing version will be erased from the memory to enable upgrade to the new version See Fig 14 7 Fig 14 5 Demonstration Screen 5 for Firmware Upgrade Fig 14 6 Demonstration Screen 6 for Firmware Upgrade Fig 14 7 Demonstration Screen 7 f...

Страница 92: ...in the computer where the Binary file is located and press Open Fig 14 9 Upload will be carried out See Fig 14 10 Fig 14 8 Demonstration Screen 8 for Firmware Upgrade Fig 14 9 Demonstration Screen 9 for Firmware Upgrade Fig 14 10 Demonstration Screen 10 for Firmware Upgrade SECTION 14 Firmware Upgrade Backup ...

Страница 93: ...erm sourceforge io space Switch to Port tab and select corresponding Port and set baud rate to 76800 bps Fig 14 11 Fig 14 11 Demonstration Screen 1 for Backup Fig 14 12 Demonstration Screen 2 for Backup Switch to Send Tab and check CR and LR Fig 14 12 And then type 1 in the input box and click as ASCII Fig 14 12 to send the command in main menu to enter Backup Sub Menu Fig 14 13 Fig 14 13 Demonstr...

Страница 94: ...4 14 To be prepared to log the incoming binary data switch to Capture tab and set the output file and End After field to file size 96256 Fig 14 15 Fig 14 14 Demonstration Screen 4 for Backup Fig 14 15 Demonstration Screen 5 for Backup Click Start Overwrite and switch back to Send Tab Fig 14 15 Send y Fig 14 14 to trigger the transmission SECTION 14 Firmware Upgrade Backup ...

Страница 95: ... GRID INVERTER BYPASS ALARM LOCAL CONTROL MONITORING MODE AND PARAMETER SETUP Through Menus displayed on the LCD screen MONITORING OPERATING STATUS Through LCD screen and 4 LEDs REMOTE CONTROL AND MONITORING PARAMETER SETUP AND MONITORING USING USB RS 232 Through computer screen using ACII coded commands MONITORING USING ETHERNET SNMP Through computer s Web Browser and Ethernet connection E mail n...

Страница 96: ...es of 10A fuses in parallel 40A Each fuse Mini Blade Fuse 10A Littel Fuse 0997010 WXN or equivalent AC INPUT OVER CURRENT PROTECTION Breaker 250 VAC 15A INPUT OUTPUT CONNECTIONS DC INPUT Terminals with cylindrical hole and set screw Hole diameter 7 16 Set screw 5 16 x 24 TPI length Slotted head DC CHASSIS GROUND Terminal with cylindrical hole and set screw Hole diameter 5 16 Set screw 5 16 x 24 TP...

Страница 97: ...ter having 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 warranty void There shall be no warranty for defects or damages caused by faulty installa tion or hook up abuse or misuse of the equipment including exposure to excessive heat salt or fresh water spr...

Страница 98: ...98 SAMLEX AMERICA INC NOTES ...

Страница 99: ...SAMLEX AMERICA INC 99 NOTES ...

Страница 100: ...ree Numbers Ph 1 800 561 5885 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 orders to orders samlexamerica com ...

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