Cotek SR Series All Models PDF file
Contents
1. 14 a SR Series Inverter 5 1 2 LED Indications AC GRID Displays AC input status AC input and DC AC inverter output are NOT synchronous ORANGE AC input and DC AC Inverter output are synchronous GREEN AC input OFF OFF Note Synchronous means that the grid AC input frequency and DC AC inverter output frequency or phase are the same See details in Section 5 3 3 INVERTER Displays DC AC inverter status Power OK GREEN Power not good RED BYPASS Displays Transfer Switch status From DC AC inverter ORANGE AC INPUT On line Mode OFF DC AC Inverter From AC input bypass GREEN AC INPUT Off line Mode OFF DC AC Inverter ALARM Displays status of the Failure Alarm Over Under Alarm ORANGE FAN Alarm Set alarm in the inverter to OFF operate normally NOTE For instructions on setting the alarm see details in Section 5 3 SR Series Inverter 5 1 3 LCD Display Selection Buttons Function of Various Keys Function lt Up gt You can use the up button to scroll through the menus v Function lt Down gt You can use the Down button to scroll through the menus a Function lt Page Up You can use the Page Up button to scroll through the menus Hi 4 Function lt Page Down gt You can use the Page Down button to scroll through the menus Function2. 5 3 Setup Menu Operation and Instructions RS232 Communication and 1111111 6 1 Operation of RS 232 Serial 2 58 6 2 Interface CommandsS w mwmaam RS S I EE 6 3 Example of RS232 z INTOFMATIONS AAA IA KA becca isa 7 1 MROUDIGSHOOUNG S Euri 14 14 14 14 14 15 APIs d p Ice eevee ad aaae Eaa Ene Daear AES ee Susa 8 1 FCC Class B Declaration 12 8 2 Declaration 8 3 LVD 60950 Declaration of Conformity 8 4 UL UL458 Notice 02 0 00 272 2 esCopyright This manual is the copyright of COTEK Electronic Industrial Co Ltd may not be reproduced or copied without the express permission of the owner SR Series Inverter 1 Important Safety Instructions WARNING SAVE THESE INSTRUCTIONS This manual contains important instructions that should be followed during installation and maintenance of the inverter
3. 1 1 General Safety Precautions 1 1 1 Do not expose the inverter to rain snow spray or dust To reduce the risk of fire hazard do not cover or obstruct the ventilation openings and do not install the inverter in a zero clearance compartment 1 1 2 To avoid the risk of fire and electric shock make sure that the existing wiring is in good electrical condition and that the wire size is not undersized Do not operate the inverter with damaged or substandard wiring 1 1 3 Depending on the use the AC output of the inverter may require user installed breaker or fusing For telecom use a GFCI has not been provided The inverter incorporates standard AC short circuit protection 1 1 4 The following precautions should be taken when working on the inverter Remove watches rings or other metal objects Use tools with insulated handles Wear rubber gloves and boots 1 2 Other Safety Notes 1 2 1 Upon receipt examine the shipment box for damage Notify the carrier immediately before opening if damage is evident 1 2 2 Do not operate near water or in excessive humidity 1 2 3 Do not open or disassemble the inverter warranty may be voided 1 2 4 The DC side connections should be firm and tight 1 2 5 Grounding Reliable grounding of rack mounted equipment should be maintained 1 2 6 Do not drop a metal tool on the battery The resulting spark or short circuit on the battery or on the other electrical part may
4. UVP Recovery Select Item Select Item Select Item Vi XX X FQ XX X Select Menu Select Menu Select Menu Select Menu RST to default 10 UV Alarm Vo XXX lo X X O P Parameter 11 12 O P Voltage Select Item O P Frequency Select Item Sync Frequency Select Item 14 15 Select Item Bypass relay Overload Alarm Select Item 5096 Setting Value LCD Contrast LCD Auto off 4800 Buzzer Setting MSG Alert SHDN RS232 Baudrate Alert Setting Alert SHDN gt o N e OVP Setting 20 00V 30 00V 25 00V UVP Setting UVP Recovery UV Alarm O P Voltage 230V N I e D gt 2 c 2 a 7 00Hz Sync Frequency Bypass relay On line o 2 amp lt D 9 9 D gt O 5 3 1 User interface Select Menu 0 LCD Contrast Sets LCD screen contrast Default 50 Setting Range 0 100 1 LCD Auto off Sets LCD auto off timer Default 120 seconds Setting Range Disable 250 seconds 2 RS232 Baud rate Sets standard RS 232 Baud rate Default 4800 Setting Range 1200 2400 4800 9600 19200 3 Buzzer Setting Sets the internal buzzer sound ON OFF When setting the LCD screen displays Buzzer ON
5. FUNC 3 Buzzer Setting Setup Menu SETT value Buzzer Beep sound 0 Disable Shutdown Alert Buzzer Setting Alert SHDN Message Message SHDN Message Alert O G N Msg Alert SHDN FUNC 4 Alert Setting Setup Menu SETT lt value gt Alert 0 Disable 1 Shutdown Alert Setting 2 Alert 3 Alert SHDW FUNC 6 OVP Setting Setup Menu SETT lt value gt Model SR1000 124 30 34 SR1000 224 OVP Setting SR1000 148 60 68 SR1000 248 27 SR Series Inverter FUNC 7 OVP Recovery Setup Menu value Model SR1000 124 28 32 SR1000 224 OVP Recovery SR1000 148 56 64 SR1000 248 FUNC 8 UVP Setting Setup Menu SETT value Model SR1000 124 18 22 SR1000 224 UVP Setting SR1000 148 36 44 SR1000 248 FUNC 9 UVP Recovery Setup Menu SETT value Model SR1000 124 23 27 SR1000 224 SR1000 148 46 54 SR1000 248 FUNC 10 UV Alarm Setup Menu SETT value Model SR1000 124 19 23 SR1000 224 UV Alert SR1000 148 38 46 SR1000 248 FUNC 11 O P Voltage Setup Menu SETT lt value gt Model SR1000 124 97 123 SR1000 148 O P Voltage SR1000 224 194 246 SR1000 248 FUNC 12 O P Frequency Setup Menu SETT value O P Frequency 47 63 FUNC 13
6. 1KW Pure Sine Wave Power Inverter User s Manual FC Contents Important Safety InstrucHons 3 o re 1 1 General Safety PrecautiONS wwwwwmamema eee nene 1 2 Other Safety NOS AA na KETE E y Introduction to Functional Characteristics NESCIT 2 2 Block Diagram i AA 2 3 Electrical Performance es NA ANAE 2 4 Mechanical 8 7 gt Installation and Maintenance Sat ReariPanel u uu susu am KW 3 2 dodge IP 2 9 WWIGIENG RAN CG es oec enm cede ER tesa sta WA ale ein Ne ete c a OBOrati W ER 4 1 Connecting the Input 0 0 4 2 Connecting the loads ooo AAA EK kia 4 3 1 cree usu sauna utu Valen E Rd M sea des 4 4 Protection eee nena e eee seen emes sees Front LCD Panel Display and 5 1 LOD Panel Tndicallolls Cerda tet vtta 5 2 Startup Sequence and Standby
7. Enter Setup Menus Press the button longer than 2 seconds The inverter will change to Setup Menu Mode which appears on the LCD screen for the user to set functions Function lt Enter gt Confirms a selection or value 5 1 4 LCD Display Displays inverter s operational status SR Series Inverter 5 2 Startup Sequence and Standby Status 5 2 1 Set the power switch to ON to power up the inverter The display shows SR 1000 INVERTER INITIALIATION then checks the inverter Status flow is as follows FAILURE Vi XX X UVP Shutdown Vi XX X Vo XXX FQ XX X lo X X OR 1Sec 4c Vi XX X Vi XX X Vo XXX OVP Shutdown FQ XX X lo X X Alert OF Vi XX X OR OTP Shutdown Alert Vi XX X OR OLP Shutdown Alert 5 3 Setup Menu Operation and Instructions Entering Setup Menu ri Press Button longer than 2 seconds The inverter enters the Setup Menus consisting of three layers 1 Select Menu Heading 2 Select Menu Item Function Code 3 Set Value SR Series Inverter Select Menu Function Code Select Item LCD Contrast Select Item Select Item LCD Auto off User interface RS232 Baudrate Buzzer Setting Select Item Select Item Select Item Alert Setting Main Menu OVP Setting Select Item Select Item J OVP Recovery I P Parameter UVP Setting
8. Model SETTING VALUE RANGE 24V 18 VDC 22 VDC 48 V 36 VDC 44 VDC 20 SR Series Inverter 9 UVP Recovery When the DC input voltage is below the set UVP value the inverter shuts down Once the input voltage rises above the set UVP value the inverter will automatically restart Default 25 VDC for 24 V Model 50 VDC for 48 V Model Model SETTING VALUE RANGE 24V 23 VDC 27 VDC 48 V 46 VDC 54 VDC 10 UV Alarm Sets Under Voltage UV alarm When the input voltage is lower than the set value the unit will sound beep to remind that the unit is going to shutdown At the meantime the contact in the internal Dry Contact Relay will open close See details in Section 3 1 6 Default 21 VDC for 24 V Model 42 VDC for 48 V Model Model SETTING VALUE RANGE 24V 19 VDC 23 VDC 48 V 38 VDC 46 VDC NOTE The value of voltage set for the UV Alarm should be equal to or higher than the value set for UVP or else the unit will shutdown without any audible warning 5 3 3 O P Parameters 11 O P Voltage Sets the inverter output voltage Default 110 VAC for 110 V Model 230 VAC for 220 V Model Model SETTING VALUE RANGE 110 V 97 VAC 123 VAC 220 V 194 VAC 246 VAC 12 O P Frequency Sets the inverter output frequency Default 60Hz for 110 V Model 50Hz for 220 V Model Model SETTING VALUE RANGE 110 V 47 Hz 63 Hz 220 V
9. SR Series Inverter Ordering Information Model Input Output Voltage Output Voltage Frequency Number Voltage Nominal Range Range SR1000 124 24 VDC 110 VAC 100 120 VAC 47 63 Hz SR1000 224 24 VDC 230 VAC 200 240 VAC 47 63 Hz SR1000 148 48 VDC 110 VAC 100 120 VAC 47 63 Hz SR1000 248 48 VDC 230 VAC 200 240 VAC 47 63 Hz SR Series Inverter 3 Installation and Maintenance 3 1 Rear Panel REAR PANEL VIEW AC OUTPUT AC INPUT L N FG L N ACINPUT BR JU WARNING J w rbawAGEUNT SU w rae GROUND OUTPUT 3 1 1 Input Breaker spelling of socket The AC input circuit breaker protects the unit from overload When an overload condition occurs the circuit breaker trips and disconnects the AC grid power input To reset it push the circuit breaker button The cause of tripping should be ascertained and corrected before the unit is reset 3 1 2 Hard wire Installation AC wiring connections AC input and AC output terminal Connect AC output and AC input wiring to the Inverter terminals Please use the following information as your reference SR Series Inverter Terminal Wire color Wire length gauge AC Line L Black 120 VAC Brown 230 VAC Within 16 feet OUTPUT Neutral N White 120 VAC Blue 230 VAC awe Line L Black 120 VAC Brown 230 VAC 14 16 AC INPUT Neutral White 120 VAC Blue 230
10. ON LIN E See details in Section 5 3 22 Frequency Synchronous le F gt ae JV DC AC inverter le F N VV AC input GRID SR Series Inverter Phase Synchronous Phase I I I I DC AC inverter le Phase I I AC input GRID 15 Overload Alarm Sets the overload alarm When the output power is higher than the set value the unit will sound beep to remind that the unit is going to shutdown At the same time the internal Dry Contact Relay will open close See details in Section 3 1 6 Default 100 Setting range 50 110 6 RS 232 Communication and Operation 6 1 Operation of RS 232 Serial Port 6 1 1 This unit uses a standard 9 Pole D connector and three of the RS232 signal lines Signal description PIN N C 1 RXD 2 TXD 3 DTR 4 GND 5 DSR 6 RTS 7 CTS 8 N C 9 23 SR Series Inverter 6 1 2 The connection between this unit and the computer is as follows Computer Power Inverter RXD RXD TXD TXD GND GND DTR DSR RTS CTS 6 1 3 The RS232 interface of this unit employs ASCII code to implement the asynchronous serial transmission control The byte structure is START BIP 8 BIT DATA STOP BIT Baud rate 1200 2400 4800 9600 19200 See d
11. power will be provided directly by the inverter from the DC source Should the DC source or inverter fail the system will transfer its output power through the bypass mode Once the DC power source is restored the system will revert to the inverter mode 2 3 Electrical Performance SR Series Inverter Electrical Specification Model No Item SR1000 124 SR1000 148 SR1000 224 SR1000 248 Voltage 24 VDC 48 VDC 24 VDC 48 VDC 30 34 VDC User 60 68 VDC User 30 34 VDC User 60 68 VDC User Input Input Over Voltage Protection selectable selectable selectable selectable Characteristics I 18 22 VDC User 36 44 VDC User 18 22 VDC User 36 44 VDC User Input Under Voltage Protection selectable selectable selectable selectable No Load Current 0 68 A 0 44A 0 6A 0 35 Continuous Output Power 1000 W Maximum output Power 3 Min 1150 W Surge Power 2000 W Output Frequency 50 60 Hz 0 05 Yo Characteristics Output Voltage 97 123 VAC User selectable 194 246 VAC User selectable Efficiency Full Load 87 88 90 91 Short Circuit Protection Yes Ipk Output Waveform Pure Sine Wave THD lt 3 LCD Panel 2 Lines LCD Panel with keypad for navigation LED Indicator Red Orange Green LED Signal and Control Dry Contact Terminal By arelay Remote Control Terminal Controls the inverter ON OFF operation Input Protection Over Under V
12. 47 Hz 63 Hz 13 Syne Frequency Sets the AC output synchronous frequency Example DC to AC inverter 230 VAC 50Hz User setting Value 7Hz When the AC input GRID Frequency is within the range of 43 Hz 57 Hz the internal transfer relay will 21 operate normally When the Frequency of the incoming grid power is less than 43 Hz or more than 58 Hz the internal transfer relay will de energize SR Series Inverter See details in Section 2 2 Default 0 1Hz 7Hz Model SETTING VALUE RANGE 110 V 0 1 Hz 7 Hz 230 V 0 1 Hz 7 Hz 14 Bypass Relay The setup is provided in one of the following two ways On line Mode or Off Line Mode Exact Normal Haphazard Default Normal Off line MODE MENU Transfer Relay Switching Feature OFF LINE See details in Section 5 3 Exact The transfer relay will switch or OFF based on conformance to the Sync Frequency window that has been set Function Code 13 Normal The transfer relay will be ON if AC input Grid power is available The DC AC inverter will remain synchronized with the incoming AC power Grid The relay will NOT switch off if the grid frequency is beyond the range set under Sync Frequency window Function Code 13 Haphazard The transfer relay will switch ON or OFF Conformance to phase and frequency synchronization will not be considered
13. Buzzer OFP Default MSG Alert SHDN Setting Range Disable Shutdown Alert Alert SHDN Message Message SHDN Message Alert MSG Alert SHDN SR Series Inverter MENU STATUS BUZZER Message Power ON or Push Keypad ON Alert FAN Fail or UV Alarm or Overload Alarm ON Shutdown OVP or UVP or OLP or OTP ON Disable Any OFF 4 Alert Setup When alert occurs the internal Dry Contact Relay will open close See details in Section 3 1 6 Default Alert SHDN Setting Range Disable Shutdown Alert Alert SHDN MENU STATUS RELAY Alert FAN Fail or UV Alarm or Overload Alarm ON Shutdown OVP or UVP or OLP or OTP ON Disable Any OFF 5 3 2 I P Parameter Select Menu 6 OVP Setting Sets the Over Voltage Protection OVP and shutdown Default 32 VDC for 24 V Model 64 VDC for 48 V Model Model SETTING VALUE RANGE 24V 30 VDC 34 VDC 48 V 60 VDC 68 VDC 7 OVP Recovery When the DC input voltage is higher than the OVP setting the inverter shuts down Once the input voltage falls below the set OVP value the inverter will automatically restart Default 30 VDC for 24 V Model 60 VDC for 48 V Model Model SETTING VALUE RANGE 24V 28 VDC 32 VDC 48 V 56 VDC 64 VDC 8 UVP Setting Setting the inverter s Under Voltage Protection UVP and Shutdown Default 20 VDC for 24 V Model 40 VDC for 48 V Model
14. Sync Frequency Setup Menu SETT lt value gt Sync Frequency 0 1 7 28 FUNC 14 Bypass Relay SR Series Inverter Setup Menu SETT lt value gt MODE 0 ON LINE 1 Haphazard OFF LINE Bypass Relay 2 Normal OFF LINE 3 Exact OFF LINE FUNC 15 Overload Alarm Setup Menu SETT lt value gt Overload Alarm 50 110 7 Information 7 1 Troubleshooting WARNING Do not open or disassemble the SR series Inverter Attempting to service the unit may cause risk of electrical shock or fire Problems and Symptoms Possible Cause Solutions No AC Power Output a LCD Panel Display OLP Shutdown b LCD Panel Display OVP Shutdown c LCD Panel Display UVP Shutdown d LCD Panel Display OTP shutdown Short circuit wiring error over loading Over input voltage OVP Low input voltage UVP Thermal shutdown OTP Check AC wiring for short circuit Reduce load Check input voltage Reduce input voltage Recharge battery Check connections and cables Improve ventilation Make sure ventilation grilles slots of the inverter are not obstructed Lower ambient temperature 29 7 2 Warranty We guarantee this product against defects in materials and workmanship for a period of 24 months from the date of purchase and will repair or replace any defective power inverters if you directly retu
15. VAC 26 32 feet AWG 12 14 Chassis Ground or FG Green Yellow or Bare copper Note Please double check and review all the connections to ensure that the wires are connected to the correct terminals and that the connections are tight 3 1 3 AC output socket 110VAC 230VAC NEMA 60320 C13 3 1 4 Chassis Ground Must be connected to earth ground prior to making any other connections to the equipment 3 1 5 RS 232 Serial port for monitoring and control through computer interface SR Series Inverter 3 1 6 Remote control and Dry contact terminal GROUND E ENABLE ENABLE Remote Control Terminals 1 Before installing the inverter ensure that the main switch is OFF 2 Before using the remote function ensure that the main switch is pressed towards REMOTE 3 Ensure that the remote contacts are off 4 Use 20 24 AWG wire to connect the remote control terminals 5 Remote control ON OFF inverter setup status ENB ENB ON INV ON 2 HEINV ON TR ON OFF INV OFF LOW INV OFF TR OFF GND ON INV ON BAT PENA ONINV ON DC O INV POWER OFF INV OFF GND NOTE At one time only one remote function should be used to control the inverter The maximum voltage value is the same as input DC voltage SR Series Inverter Dry Contact Terminals Dry contact terminals may be connected to a For
16. a short circuit in the cable run between the batteries and the input terminals of the inverter it will result in overheating melting of the cables and consequent risk of fire and injury To prevent possibility of this hazard use Very Fast Acting DC Fuse in line with the positive cable The fuse should be as close to the positive battery terminal as possible Use Bussmann ANN series fuses will also require Fuse Block 4164 or equivalent The following sizes of cables and fuses are recommended for up to 6 ft distance between the batteries and the inverter Applies to both 120 VAC and 230 VAC versions SR1000 124 224 4 80A SR1000 148 248 6 40A Connect DC input terminals to 24V 48V battery or other DC power source is positive is negative Reverse polarity connection can blow the internal fuse and may damage the inverter permanently WARNING Make sure that all the DC connections are tight torque to 9 10 ft lbs 11 7 13 Nm Loose connections could result in overheating and can be a potential hazard SR Series Inverter NEGATIVE lt PVC WIRE RING TERMINAL AWG 4 6 PVC WIRE RING TERMINAL 7 AWA io POSITIVE lt WARNING The recommended inline fuse should be installed as close to the battery positive terminal as possible Failure to use a fuse on the cable running between the inverter and battery may cause damage to the cable inverter and will vo
17. cause an explosion SR Series Inverter 1 2 7 Install the inverter in a well ventilated area Do not block the front air vents or the rear air exhausts of the unit 1 2 8 Wiring Adequate input power must be supplied to the inverter for proper use correct wiring sizes must be ensured 2 9 Mount the inverter such that the fan axis is horizontal 2 10 Do not operate the inverter close to combustible gas or open fire 2 11 Do not operate appliances that may feed power back into the Inverter 1 2 12 Temperature The inverter should be operated in an ambient temperature range of 0 C to 50 C or else the output efficiency may be affected Air flow to the inverter must not be restricted 2 Functional Characteristics Introduction 2 1 System The unit is a highly reliable DC AC inverter system designed with advanced power electronic and microprocessor technology offering the following features The inverter is equipped with a self diagnosis microprocessor that is able to identify and show all failure messages on the LED LCD display with associated visual audio alarm s 1U height x 19 width x 13 6 depth 19 rack mountable Pure sine wave output THD lt 3 to operate higher end electronic equipment Built in 12A rated transfer switch Speeds up transfer time as a result of synchronized operation with the AC source at all times that allows the transfer to be interruption free for sensitive equipment Inte
18. etails in Section 5 3 1 6 1 4 Coupled with PC software application port Operation is as detailed in Section 6 2 6 2 Interface Commands The buffer size used for the RS232 port is 12 byte This unit will ignore all bytes more than this value During transmission this unit will indicate it is ready to receive data from computer by this DTR line A computer has to check the DTR line before sending any information to this unit This unit is normally always ready to receive data while operating When a LF character ASCII code is received this unit would finish the receiving by clearing the DTR status and begin to interpret the received information The unit would execute the received command AND OR data if it is correct Irrespective of whether the command is accepted or not the unit will always send back a response signal to the computer and set DTR to ready for receiving more incoming information 6 2 1 The Baud rate of the RS232 interface can be set with the help of the Setup Menu See details in Section 5 3 1 Note You have to reset the unit after adjustment to activate the new setting 24 SR Series Inverter 6 3 Example of the RS232 Operation 6 3 1 RS232 command Command format This unit uses high level language commands with a CR ODH and LF OAH as the end of the command The system would interpret and execute the command only after these two characters are received After the unit execute the comma
19. id warranty NEGATIVE lt POSITIVE lt INLINE FUSE SR Series Inverter 3 2 Front Panel FRONT PANEL View ON ous PURE Vi 24 0 115 DM m FQ 600 0 8 5 1 REMOTE 3 2 1 Main Switch These are buttons for turning on turning off and remote 3 2 2 LED s Indicators See details in Section 5 1 3 2 3 LCD Display Selection Buttons Data pertaining to the DC input voltage AC output voltage AC output frequency AC output current etc and system status can be shown sequentially on the LCD display by pressing these buttons Please refer to chapter 5 for more information 3 2 4 FAN ventilation grille 1 3 The fans behind the ventilation grilles provide cooling DOT NOT obstruct these vents 3 3 Maintenance 3 3 1 Make sure that the fan vents are not blocked 3 3 2 Use a vacuum cleaner to remove any dust from the fan area 3 3 3 When cleaning the case or front panel use a soft dry cloth only If the case or front panel is very dirty use a neutral non abrasive detergent Do not use alcohol or ammonia based solutions 3 3 4 Regular service and relocation of the inverter should be performed by a qualified service technician 3 3 5 Avoid spilling liquid on the inverter 4 Operation 4 1 Connecting the input power Before making the DC input side connections the main switch must be OFF 4 2 Connecting the loads Calculate the total power cons
20. lligent software for power management Hard wire and Dual AC outlets connection model option Loading and temperature controlled cooling fan Fan aging failure disconnection and blockage alarm Selectable Bypass Inverter modes Local and remote management and control RS 232 communication SR Series Inverter I Dry contact terminal I Efficiency gt 90 Full linear load at 220 VAC Output Advanced Protection Features Input over under voltage protection Internal over temperature protection Input reverse polarity protection Fuse Output overload protection Output short circuit protection AC input short circuit protection Breaker 6 Amp or 12 Amp 2 2 Block Diagram AG CRID FILTER INPUT BYPASS RELAY DC AC FILTER INPUT OUTNPUT The inverter features IGBT technology which minimizes weight and dimension while enhancing output short circuit reliability and overload capacity AC output voltage is provided in one of the two following modes 1 From DC to AC Inverter Mode On line Mode 2 From AC Input Bypass Mode Off line Mode Either mode is front panel programmable In the first option Off line mode AC output power will be supplied through the AC bypass mode in its normal operation Upon AC input failure output power will be diverted through the DC to AC Inverter Mode Once AC mains are restored the unit will revert from the Inverter Mode to the Bypass Mode In the second option On line mode AC output
21. m C relay for FAULT indication When FAULT occurs the relay switches NOTE Fault conditions include Input under over voltage Output Short Circuit Over Temperature Over load and Fan Failure Specifications of the Relay Maximum Load Contact Rating Number of Operating Storage Voltage N O N C operations Temperature 240 VAC Resistive 16A 100 000 240 VAC Resistive 8A z 30 VDC Resistive 16 A 30 C 70 C 30 VDC Resistive u 8A Dry Contact Terminal RELAY COM Common contact N C Normally closed contact N O Normally open contact SR Series Inverter 3 1 7 DC Input Connection Follow the instructions to connect the battery cables to the DC input terminals of the inverter The cables should be as short as possible less than 6 feet 1 8 meters ideally so that they can handle the required current in accordance with the Electrical Codes and Regulations The size of the cable should be thick enough to limit the voltage drop to less than 2 when carrying the maximum input current to prevent frequent low input voltage warnings and shutdown UVP Under Voltage Protection warning may result if there is excessive voltage drop across the DC cables between the batteries and the inverter Increasing your DC cable size will help improve the situation Batteries are capable of providing very large currents in case of short circuit In case there is
22. nd it would send a response string to the computer The response string is as follows gt CR LF Command executed successfully gt CR LF Command error not accepted gt CRLF Command correct but execution error e g parameters out of range If the command needs any information from the unit the unit would send the information back to the computer with CR and LF and then send the response string to the computer 6 3 2 Command format This unit supports the following command format There should always be a CR ODH and a LF OAH appended to the command while sending the command to this unit 1 Command to switch the Power ON OFF Format Power value Example A space ASCII code 20H is needed between Power and value value can be one of the following 0 Power off 1 Power on 2 Command to query the Output Frequency Format FRQ After Enter the unit s Output Frequency appears on the PC screen 3 Command to query the Output Voltage Format VOL After Enter the unit s Output Voltage appears on the PC screen 25 SR Series Inverter 4 Command to query the Output Current Format AMP After Enter the unit s Output Current appears on the PC screen 5 Command to query the Input Battery Voltage Format BAT After Enter the unit s Input Voltage appears on the PC screen 6 3 3 Command for accessing Setup Men
23. oltage Reverse Polarity Internal Fuse AC Output Protection Short Circuit Overload Protection AC Input Protection 12 Amp Circuit Breaker 6 Amp Circuit Breaker Temperature protection Shutdown Internal temperature265 C Relay Specification 12 Amp 250 VAC Bypass Relay On Line Off Line Haphazard Normal Exact selectable Transfer Rela y From AC bypass mode Off line Mode S9mS Switching Time From DC to AC inverter mode On line Mode S7mS I Full Load 0 C 50 C Operating Temperature Storage 30 C 70 C Failure Indication Buzzer alarm and dry contact Fan Operation and Indication Switches On when Temperature 255 C or Load230 Switches Off When Temperature 45 C and Load 20 Size W X H X D 19 x1 71 x13 6 482 6mmX43 5mmX345mm Mechanical Specifications Weight 5 8 Kgs 12 7 Lbs Meets EN60950 1 Safety Standards Meets UL60950 Safetyand EMHEMG SR Series Inverter EMC Standards FCC Class B EN55022 1998 A1 2000 A2 2003 Class B EN55024 1997 A1 2001 a2 2003 EN61000 3 2 2006 Class A EN61000 3 3 1995 A1 2001 2 4 Mechanical Drawings inant oy an N 1 93 N 1 Eu JJ ANdLNO DW UL Lndino x ov Z owow ze seswa C iA Note The specifications are subject to change without notice CONINEYM n WA
24. rned them to us with postage paid Please note that Cotek is only responsible for ensuring our products are operational before delivering This warranty will be considered void if the unit has been misused altered or accidentally damaged Cotek is not liable for anything that occurs as a result of the user s fault 8 Appendices 30 No 33 Rong Hsin Rd Pa Teh City Tao Yuan County Taiwan Phone 886 3 3661581 FAX 886 3 3676029 E mail sales cotek com tw http www cotek com tw 2007 05 31
25. umption W of the output load Make sure that the total power consumption does not exceed the rated load Should the total load exceed the rated capacity of the inverter remove the non critical loads until the rated total has been reached SR Series Inverter 4 3 Inverter Operation Set the power switch to the ON position The buzzer will sound beep beep The inverter will carry out self diagnosis and the LED s will change colors At the same time the LCD will display SR 1000 INVERTER INITIALIATION Finally the buzzer will sound another beep and the INVERTER status LED s will turn Green The LCD Display will display Vi Vo FQ lo The inverter will start operating normally Set the power switch to the OFF position The inverter stops and all the lights that are on will go off 4 4 Protections Features 24 V 30 1 34 1 28 32 19 23 18 1 22 1 23 27 65 45 105 75 C 48 V 60 1 68 1 56 64 38 46 36 1 44 1 46 54 5 Front LCD Panel Display amp Setup 5 1 LCD Panel Indications 5 1 1 Set the Power Switch to the ON position The inverter starts working normally The inverter will be operating in normal condition when either of the following messages are displayed on the LCD screen COTEK PURE SINE WAVE INVERTER AC GRID Vi 24 0 Vo 115 4 FQ 60 0 lo 8 5 ALARM
26. us and adjusting values 1 Selecting the Setup Menus with the help of Function Codes Format FUNC lt Function Code gt After Enter the Setup Menu for the Function Code will be called The lt Function Code gt 0 17 as follows lt Function Code gt Setup Menu lt Function Code gt Setup Menu 0 LCD Contrast 9 UVP Recovery 1 LCD Auto off 10 UV Alarm 2 RS232 Baud rate 11 O P Voltage 3 Buzzer Setting 12 O P Freguency 4 Alert Setting 13 Sync Freguency 5 NOT USED 14 Bypass Relay 6 OVP Setting 15 Overload Alarm 7 OVP Recovery 16 NOT USED 8 UVP Setting 17 NOT USED 2 Command to guery the Functions No Format FUNC After Enter the unit s Function Code appears on the PC screen 3 Command to guery the set value of the Function Format SETT After Enter the existing set value of the function appears on the PC screen 4 Command to set or adjust the value of the Function Format SETT lt value gt After Enter the new value ofthe Function is set Choose the lt value gt of the function as follows FUNC 0 LCD Contrast Setup Menu SETT lt value gt LCD Contrast 0 100 26 SR Series Inverter FUNC 1 LCD Auto off Setup Menu SETT lt value gt LCD Auto off Disable 250 FUNC 2 RS232 Baud rate Setup Menu SETT lt value gt Baud rate 0 1200 1 2400 RS 232 Baud 2 4800 rate 3 9600 4 19200
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