COTEK - Inverter Power Supply, Electronic Inverter ManufacturerCOTEK - Inverter Power Supply, Electronic Inverter Manufacturer
User Manual for COTEK models including: SPT1200, SPT2000, SPT3000, SPT Series Pure Sine Wave Inverter, SPT Series, Pure Sine Wave Inverter, Sine Wave Inverter, Wave Inverter
2 EN 4. INSTALLATION 21 4-1. Connection the DC cable 21 4-2. DC in wire AWG/INLINE fuse 22 4-3. Hardwire Installation 22 4-4. Connecting the loads 23
3 feb 2025 — Also, only use high quality copper wire and keep the cable length short, ... Select the COM port and start the operation. Page 29. 27. 5-3.RS-485 Command. 5 ...
File Info : application/pdf, 37 Pages, 2.16MB
DocumentDocumentSPT Series User's Manual EN SPT1200/2000/3000 [Page 3] PURE SINE WAVE INVERTER EN Table of Content 1. SAFETY INSTRUCTIONS 3 1-1. General Safety Precautions 3 1-2. Other Safety Notes 4 2. FUNCTIONAL CHARACTERISTICS INTRODUCTION 5 2-1. System 5 2-2. Block Diagram 5 2-3. Electrical Specification 6 2-3-1. SPT Series Specification 6 2-3-2. Voltage & temperature performance 12 2-4. Mechanical Drawings 13 3. INSTALLATION AND MAINTENANCE 14 3-1. AC Output Side (Front Panel) Introduction 14 3-1-1. Main Switch 14 3-1-2. Black Terminal 17 3-1-3. Unit Status LED & Grid Status LED Status 16 3-1-4. S1 - Dip switch 16 3-2. DC Input Side (Rear Panel) Introduction 18 3-2-1. DC Reverse Status LED Status 18 3-2-2. RS485 Terminal Switch 19 3-2-3. Remote Port (RJ-45) 19 3-3. Mounting Instruction 20 EN 4. INSTALLATION 21 4-1. Connection the DC cable 21 4-2. DC in wire AWG/INLINE fuse 22 4-3. Hardwire Installation 22 4-4. Connecting the loads 23 4-5. Switch ON Inverter 25 4-6. Protection Mechanism 25 5. RS-485 COMMUNICATION AND OPERATION 26 5-1. RS-485 Port 26 5-2. RS-485 Port Operating 26 5-3. RS-485 Command 27 5-3-1. RS-485 command format 27 5-3-2. RS-485 function list 27 6. TROUBLE SHOOTING 33 7. INFORMATION 30 7-1. Warning 34 7-2. Warranty 34 2 1. Safety Instructions 1-1. General Safety Precautions Warning! Before using the Inverter, read the safety instructions. 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. To avoid the risk of fire and electric shock, make sure that the existing wiring is in good electrical condition, and the wire size is not undersized. This equipment contains components which can produce arcs or sparks. To prevent fire or explosion do not install in compartment containing batteries or flammable materials or in location which require ignition protected equipment. This includes any space containing gasolinepowered machinery, fuel tanks, or joints, fittings, or other connection between components of the fuel system. Depending on the user scenario, the AC output of the inverter may require user installed breaker or fuse. In AC output hardwire application, AC socket will not been provided. The inverter incorporates standard AC short circuit protection. An over current protection at the time of installation shall be provided by others for the AC output circuit. The following precautions should be taken when working on the inverter: Step 1 Remove watches, rings, or other metal objects Step 2 Use tools with insulated handles Step 3 Wear rubber gloves and boots 3 EN 1-2. Other Safety Notes Upon receipt, examine the carton box for damage. If you have found any damage on the carton box please notify the company you purchased this unit from. Do not operate near water or in excessive humidity. Do not open or disassemble the inverter, and warranty may be voided. The DC side connections should be firm and tight. Grounding: Reliable grounding should be maintained. 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 cause an explosion. Install the inverter in a well-ventilated area. Do not block the front air vents, or the rear air exhausts of the unit. Wiring: Adequate input power must be supplied to the inverter for proper use; correct wiring sizes must be ensured. Mount the inverter such that the fan axis is horizontal. Do not operate the inverter close to combustible gas or open fire. Do not operate appliances that may feed power back into the inverter. Temperature: The inverter should be operated in an ambient temperature range of -20 to 40 otherwise the output efficiency may be affected. Air flow to the inverter must not be blocked. 4 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: Pure sine wave output waveform O/P voltage : THD 3 % Built-in AC power and inverter automatic transfer switch Energy-saving mode can be set Flexible output frequency and voltage settings 2-second double power output Loading and temperature controlled cooling fan CR-8 / CR-22 remote management and control RS-485(Modbus) communication Dry contact terminal Advanced Protection Features Input over/under voltage protection Internal over temperature protection Input reverse polarity protection Output overload protection Output short circuit protection 2-2. Block Diagram 5 EN 2-3. Electrical Specification 2-3-1. SPT Series Specification Item Electrical Rated Power SPT-1200-112 SPT-1200-124 1200VA Rated input voltage 12.5 VDC 25.0 VDC DC input operation range 10.0~16.5±0.3VDC 20.0~33.0±0.3VDC Input over voltage protection > 16.5 ± 0.3 VDC > 33.0 ± 0.3 VDC Input over voltage warning > 15.5 ± 0.3 VDC > 31.0 ± 0.3 VDC Input under voltage protection < 10.0 ± 0.3 VDC < 20.0 ± 0.3 VDC Input Input under voltage warning Input under voltage restart < 11.0 ± 0.3 VDC <12.5 ± 0.3 VDC < 22.0 ± 0.3 VDC <25.0 ± 0.3 VDC Input over voltage restart >13.5 ± 0.3 VDC >27.0 ± 0.3 VDC Input Current (No load) 1.8 A @12.5VDC 0.9 A @ 25.0VDC Input Current (Max) 133A @10.5VDC 65A @ 21.0VDC Power Saving mode < 0.1 A @12.5VDC < 0.1 A @ 25.0VDC Dark current @ Off mode <100uA Overload (Max. 1 min.) 1201~1440VA Peak Power (Max. 3 sec.) 1441~2400VA Peak Power (Max. 2 sec.) >2400VA Output Frequency Output Voltage Max. Efficiency 50/60 Hz ± 0.3 Hz (User-selectable) 100 / 110 / 115 / 120 Vac ±3% (Non UL version), Only 120 Vac ±3% (UL version) 91% 92% AC input Output Waveform Total Harmonic Distortion (THD) Nominal Voltage / Frequency Pure Sine Wave < 3% (Bat. 12.5V / 25.0V @120Vac, resistive load) 120 VAC, 60Hz (User-selectable) (Bypass Input Voltage Range 70-150Vac mode) 6 Input Frequency Range 50Hz:47 ~ 53 Hz / 60Hz:57 ~ 63 Hz AC Input current Transfer Transfer relay rating switch Transfer Time DC Input Protection Protection AC Output Protection AC Input Protection Signal and Control Temperature protection Remote Control Panel (Optional) Communication port Dry Terminal Full Load Operating Power de-rating Temperature Storage Range Operating Humidity Range Cooling Mechanical Dimension W x H x D (mm) Specification Net Weight (kg) Safety and Safety Standards EMS EMC Standards 24A 40A continuous 20mS OCP(fuse), Reverse Polarity(mosfet), OVP, UVP Short-Circuit, Overload 30A Breaker (Automatically Reset) Enable by heatsink temperature > 95°C CR-22/ CR-8 RJ45 x 2 ENB+, ENB-, GND, COM, N/C, N/O -20°C ~ 40°C 41°C ~ 60°C -40 ~ 70°C 0 ~ 95% RH, non-condensing Temperature & Load Controlled Cooling Fan 227 x 86 x 332 3.4 Certified UL458 Certified FCC Class B Table 1. SPT-1200 Specification. 7 EN Electrical Input Output AC input (Bypass mode) Transfer 8 Item Rated Power Rated input voltage DC input operation range Input over voltage protection Input over voltage warning Input under voltage protection Input under voltage warning Input under voltage restart Input over voltage restart Input Current (No load) Input Current (Max) Power Saving mode Dark current @ Off mode Overload (Max. 1 min.) Peak Power (Max. 3 sec.) Peak Power (Max. 2 sec.) Frequency Output Voltage Max. Efficiency Output Waveform Total Harmonic Distortion (THD) Nominal Voltage / Frequency Input Voltage Range Input Frequency Range AC Input current Transfer relay rating SPT-2000-112 SPT-2000-124 2000VA 12.5 VDC 25.0 VDC 10.0~16.5±0.3VDC 20.0~33.0±0.3VDC > 16.5 ± 0.3 VDC > 33.0 ± 0.3 VDC > 15.5 ± 0.3 VDC > 31.0 ± 0.3 VDC < 10.0 ± 0.3 VDC < 20.0 ± 0.3 VDC < 11.0 ± 0.3 VDC < 22.0 ± 0.3 VDC <12.5 ± 0.3 VDC <25.0 ± 0.3 VDC >13.5 ± 0.3 VDC >27.0 ± 0.3 VDC 2.0 A @12.5VDC 1.0 A @ 25.0VDC 220A @10.5VDC 107A @ 21.0VDC < 0.1 A @12.5VDC < 0.1 A @ 25.0VDC <100uA 2001~2400VA 2401~4000VA >4000VA 50/60 Hz ± 0.3 Hz (User-selectable) 100 / 110 / 115 / 120 Vac ±3% (Non UL version), Only 120 Vac ±3% (UL version) 91% 92% Pure Sine Wave < 3% (Bat. 12.5V / 25.0V @120Vac, resistive load) 120 VAC, 60Hz (User-selectable) 70-150Vac 50Hz:47 ~ 53 Hz / 60Hz:57 ~ 63 Hz 24A 40A continuous switch Transfer Time DC Input Protection Protection AC Output Protection AC Input Protection Signal and Control Temperature protection Remote Control Panel (Optional) Communication port Dry Terminal Full Load Operating Power de-rating Temperature Storage Range Operating Humidity Range Cooling Mechanical Dimension W x H x D (mm) Specification Net Weight (kg) Safety and Safety Standards EMS EMC Standards 20mS OCP(fuse), Reverse Polarity(mosfet), OVP, UVP Short-Circuit, Overload 30A Breaker (Automatically Reset) Enable by heatsink temperature > 95°C CR-22/ CR-8 RJ45 x 2 ENB+, ENB-, GND, COM, N/C, N/O -20°C ~ 40°C 41°C ~ 60°C -40 ~ 70°C 0 ~ 95% RH, non-condensing Temperature & Load Controlled Cooling Fan 253 x 86 x 366 4.4 Certified UL458 Certified FCC Class B Table 2. SPT-2000 Specification. 9 EN Electrical Input Output AC input (Bypass mode) Transfer 10 Item Rated Power Rated input voltage DC input operation range Input over voltage protection Input over voltage warning Input under voltage protection Input under voltage warning Input under voltage restart Input over voltage restart Input Current (No load) Input Current (Max) Power Saving mode Dark current @ Off mode Overload (Max. 1 min.) Peak Power (Max. 3 sec.) Peak Power (Max. 2 sec.) Frequency Output Voltage Max. Efficiency Output Waveform Total Harmonic Distortion (THD) Nominal Voltage / Frequency Input Voltage Range Input Frequency Range AC Input current Transfer relay rating SPT-3000-112 SPT-3000-124 3000VA 12.5 VDC 25.0 VDC 10.0~16.5±0.3VDC 20.0~33.0±0.3VDC > 16.5 ± 0.3 VDC > 33.0 ± 0.3 VDC > 15.5 ± 0.3 VDC > 31.0 ± 0.3 VDC < 10.0 ± 0.3 VDC < 20.0 ± 0.3 VDC < 11.0 ± 0.3 VDC < 22.0 ± 0.3 VDC <12.5 ± 0.3 VDC <25.0 ± 0.3 VDC >13.5 ± 0.3 VDC >27.0 ± 0.3 VDC 2.8 A @12.5VDC 1.4 A @ 25.0VDC 330A @10.5VDC 161A @ 21.0VDC < 0.1 A @12.5VDC < 0.1 A @ 25.0VDC <100uA 3001~3600VA 3601~6000VA >6000VA 50/60 Hz ± 0.3 Hz (User-selectable) 100 / 110 / 115 / 120 Vac ±3% (Non UL version), Only 120 Vac ±3% (UL version) 91% 92% Pure Sine Wave < 3% (Bat. 12.5V / 25.0V @120Vac, resistive load) 120 VAC, 60Hz (User-selectable) 70-150Vac 50Hz:47 ~ 53 Hz / 60Hz:57 ~ 63 Hz 24A 40A continuous switch Transfer Time DC Input Protection Protection AC Output Protection AC Input Protection Signal and Control Temperature protection Remote Control Panel (Optional) Communication port Dry Terminal Full Load Operating Power de-rating Temperature Storage Range Operating Humidity Range Cooling Mechanical Dimension W x H x D (mm) Specification Net Weight (kg) Safety and Safety Standards EMS EMC Standards 20mS OCP(fuse), Reverse Polarity(mosfet), OVP, UVP Short-Circuit, Overload 30A Breaker (Automatically Reset) Enable by heatsink temperature > 95°C CR-22/ CR-8 RJ45 x 2 ENB+, ENB-, GND, COM, N/C, N/O -20°C ~ 40°C 41°C ~ 60°C -40 ~ 70°C 0 ~ 95% RH, non-condensing Temperature & Load Controlled Cooling Fan 290 x 102 x 408 6.5 Certified UL458 Certified FCC Class A Table 3. SPT-3000 Specification. 11 EN 2-3-2. Voltage & temperature performance Figure 1. SPT1200/2000/3000 Output power vs. input voltage Figure 1. SPT1200/2000/3000 Output power vs. Battery Voltage Figure 2. SPT1200/2000/3000 Output power vs. temperature 12 2-4. Mechanical Drawings Figure 3. SPT series drawing Model A B C D E F G H SPT-1200 86mm (3.37") 191mm (7.52") 226.4mm (8.91") 332mm (13.07') 66mm (2.6") 196mm (7.72") 209.5mm (8.25") 18.8mm (0.74") SPT-2000 86mm (3.37') 217mm (8.54") 253mm (9.96") 366mm (14.41") 76mm (2.99") 196mm (7.72") 235.5mm (9.27") 18.8mm (0.74") Table 4. SPT Series Dimension SPT-3000 102mm (4.02") 254.6mm (10.02") 290mm (11.42") 408mm (16.06") 92.8mm (3.65") 196mm (7.72") 273mm (10.75") 24mm (0.94") 13 EN 3. Installation and Maintenance 3-1. AC Output Side (Front Panel) Introduction Figure 4. SPT-1200/2000/3000 AC output panel view Model 1 2 3 4 5 6 7 8 9 SPT-1200 / 2000 / 3000 Main Switch (refer to 3-1-1) Remote Black Terminal (ENB+- & Dry contact) (refer to 3-1-2) Unit Status LED (refer to 3-1-3) AC Power Only Status LED (refer to 3-1-3) Function Switch (6-Port) (refer to 3-1-4) AC-OUT Terminal AC-IN Terminal Ground Lug Panel Screw Table 5. SPT Series AC output side introduction NoteWhen the main switch is switched to REMO mode, only the CR-8, CR-22, or Black Terminal (ENB+ or ENB-) can be used . 14 3-1-1. Main Switch Set the main switch to the "ON". The inverter will turn on and the Unit Status LED on. Set the main switch to the "OFF" The inverter stops and the status LED off. Set to "REMOTE" if you wish to use remote/dry contact to power on/off 3-1-2. Remote Black Terminal Item Description 1 Ground (GND) 2 Enable- (ENB-) 3 Enable+ (ENB+) 4 Dry contact (Normal Open) 5 Common 6 Dry contact (Normal Closed) Table 6. S2-Black Terminal introduction NoteUse 20 ~ 24 #AWG wire to connect the black terminals Stripping Length : 8~9mm 3-1-2-1 Dry contact terminal definition 15 EN Maximum Voltage 125 VAC 125 VAC 30 VDC 30 VDC Figure 5. Dry contact terminal definition Load Contact Rating N.O N.C Number of operations Resistive 0.5 A --- 100,000 Resistive --- 0.5 A --- Resistive Resistive 2 A --- --- 2A 100,000 --- Table 7. Specifications of the Relay Operating/Storage Temperature -40~85 3-1-3. Unit Status LED & AC Power Only LED Status Unit Status LED Solid Green Slow Blink Green Slow Blink Orange Fast Blink Orange Intermittent Blink Red Intermittent Blink Red Intermittent Blink Red Fast Blink Red Solid Red AC Power Only LED Solid Blue LED Signal LED Signal Table 8. Unit Status LED Indicator Status Inverter mode Bypass mode Bat. Over Voltage Alarm Bat. Under Voltage Alarm Over Temperature Protection Bat. OVP Shut down Bat. UVP Shut down Over Load Protection Hardware fault Status Grid In 3-1-4. Function Switch 16 Default Figure 5. DIP switch ON/OFF position Dip Switch S1 S2 S3 S4 S5 S6 Function Output Frequency Selection (refer to 3-1-4-1) Output voltage Selection (refer to 3-1-4-2) Power Saving Enable Selection (refer to 3-1-4-3) Power Saving Threshold Selection (refer to 3-1-4-4) Power Saving Time Out Selection (refer to 3-1-4-5) Table 9. DIP Switch Definition 3-1-4-1. Output Frequency selection (S1) Output Frequency S1 50Hz ON 60Hz OFF Table 10. DIP Switch definition: output Frequency selection 3-1-4-2. Output voltage selection (S2&S3) Output voltage S2 S3 100V ON ON 110V ON OFF 115V OFF ON 120V OFF OFF Table 11. DIP Switch definition: output voltage selection 3-1-4-3. Power Saving Enable selection (S4) Power Saving Function S4 Power saving enable ON Power saving disable OFF Table 12. DIP Switch definition: Power Saving Enable selection 3-1-4-4. Power Saving Threshold selection (S5) Threshold Voltage S5 45W ON 5W OFF Table 13. DIP Switch definition: Power Saving Threshold selection 3-1-4-5. Power saving trigger time selection (S6) Power saving trigger time S6 10 mins ON Disable Time out OFF Table 14. DIP Switch definition: Power Saving Time Out selection 17 EN 3-2. DC Input Side (Rear Panel) Introduction Figure 6. SPT-1200/2000/3000 Model 1 2 3 4 5 6 SPT-1200 SPT-2000 SPT-3000 Battery Power in Reverse Status LED (refer to 3-2-1) RS485 Terminator Switch (refer to 3-2-2) Remote Port (RJ45) (refer to 3-2-3) Remote Port (RJ45) (refer to 3-2-3) Batt- Input Terminal (Recommended torque value: 65-70 kgf.cm [6.4-6.9 N.m ]) Batt+ Input Terminal (Recommended torque value: 65-70 kgf.cm [6.4-6.9 N.m ]) Table15. SPT Series DC input side introduction 18 3-2-1. Battery Power in Reverse Status LED Status Battery Power in Reverse Status LED Solid Red LED Signal Table16. DC Reverse Status LED Status Status DC Reverse 3-2-2. RS485 Terminator Switch (for Default OFF) For the last connected, please slide the switch to the ON position for activating the terminating resistor. 3-2-3. Pin Definition for Remote Port (RJ-45) Pin Number Signal Description 1 Reserved N/A 2 Reserved N/A 3 Reserved N/A 4 485B RS485 B signal 5 485A RS485 A signal 6 RMT Remote controller panel (positive) 7 12VP Internal power for remote controller 8 GND The same polarity as the battery negative side Table17. Pin define for Remote Port 19 EN 3-3. Mounting Instruction 3-5-1. Wall Mount Step 1. Use the screws to mount the Drip shield and the product on the wall. Step 2. Please make sure the bulkhead size requires at least 3 inches clearance each side of the inverter. Figure 7Wall mount 3-5-2. Ceiling Mount ( For Vehicle and Marine ) Use the screws to mount the product on the wall, and the product mounting requirement is as follow: Figure 8Ceiling mount 20 4. Installation 4-1. Connection the DC cable Before making the DC input side connections, the main switch must be at "OFF". Connect DC input terminals to 12V battery or other DC power source [ + ] is positive, [ - ] is negative. Reverse polarity connection can let DC Reverse Status LED on. Figure 9. DC cable connection 21 EN 4-2 . DC in wire AWG/INLINE fuse Model SPT-1200-112/124 SPT-2000-112/124 SPT-3000-112/124 Wire AWG #1 / #6 #1/0 / #4 #4/0 / #1/0 lnline fuse 300A / 150A 500A / 250A 700A / 350A Table18. DC in wire AWG/INLINE fuse 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 void warranty. Also, only use high quality copper wire and keep the cable length short, within a maximum 3 - 6 feet. 4-3. Hardwire Installation Step 1. Remove the three screws of AC wiring compartment and pull it out with care. Figure 10. Remove the three screws 22 Step 2. Pull the line through the snap bushing of the AC wiring compartment cover then follow below picture operation. Figure 11. AC wiring 4-4. Connecting the loads Calculate the total power consumption of the output load. Make sure that the total power consumption does not exceed the rated power. If the total power consumption over the rated power of the inverter, remove 23 EN the non-critical: loads until the total power consumption is below the rated power. Appliance Typical Wattage Appliance Typical Wattage 13" Color TV 50 3/8 Power Drill 500 19" Color TV 100 Icemaker 200 VCR 50 Coffee Maker 1000 Lamp 100 3cu' Refrigerator 150 Blender 300 20cu' Refrigerator 750 Laptop Computer 50 Compact Microwave 750 Curling Iron 50 Full Size Microwave 1500 Table19. Typical Power Consumption *Numerous electric motors exhibit momentary starting demands that surpass their operational ratings. Start-up wattage, when applicable, is specified. It's important to note that individual appliances may exhibit variations in performance based on their style and brand. 4-4-1. Nutural Grounding For safety and compliance with electrical standards, it's best to have all electrical installations done by certified technicians in line with local codes. When the unit is in operation with its internal inversion mechanism on, the "L" and "N" terminals of the AC output become isolated from the metal chassis. So, if the chassis is grounded, the "N" terminal isn't, and it's not a true Neutral. Touching it could give you a shock, as it carries a voltage almost half of what's in the AC output. But when the unit is drawing power from the AC input source, the grounding status of the "N" terminal matches that of the input source. So, if the source is from the utility, the "N" terminal is a true Neutral, usually grounded and safe to touch. 24 Figure 12. Nutural Grounding 4-5. Switch ON Inverter If you choose to control the Power On/Off via the dry contact or the remote unit, please make the power switch at "REMO" position. For the dry contact information, please refer to 3-1-4-1 4-6. Protection Mechanism Model Over Voltage (DC) Shutdown Restart >16.5V ± 12V 0.3V <13.5V± 0.3V Under Voltage Alarm 11V ± 0.3V Under Voltage Shutdown Restart 10V ± 0.3V >12.5V± 0.3V Table 20. Protection Mechanism Model 12V Over temperature protection Shutdown Restart 95 60 Table 21. Over Temperature Protection Mechanism 25 EN 5. RS- 485 Communication and Operation 5-1. RS-485 Port RS-485 Port : Serial port monitoring and control through computer interface. Figure 13. RS-485 cable RJ45 PIN Number Description 1 Not used 2 Not used 3 Not used 4 485B 5 485A 6 RMT 7 12VP 8 GND COM port PIN Number Description 1 Not used 2 RXD 3 TXD 4 Not used 5 GND 6 Not used 7 Not used 8 Not used 9 Not used Table 22. RS-485 interface definition 5-2. RS-485 Port Operating The following steps show the connection among inverter and computer. Step 1 Connect the RS-485 port to the SPT series unit on the rear panel Step 2 Run the computer communication program Step 3 Set the transmission protocol Byte structure: START-BIP 8 BIT DATA-STOP BIT Baud rate: 9600bps Step 4 Select the COM port and start the operation 26 5-3.RS-485 Command 5-3-1. RS-485 command format This device uses the MODBUS communication protocol. Control commands are sent using hexadecimal characters, and the commands must include the following: Slave ID, Function code, Starting address, Quantity of Coils, and CRC checksum. The Slave ID of this device is 11H For Example: Correctly querying the BUVP value Slave ID Function Starting address 11 03 00 10 SPT Response Slave ID Function Byte Quantity 11 03 02 Quantity of Coils 00 01 Quantity of Coils 06 72 CRC 87 5F CRC FA 02 Correctly setting the BUVP value: Slave ID Function Starting address 11 06 00 10 SPT Response Slave ID Function Starting address 11 06 00 10 Quantity of Coils 06 72 Quantity of Coils 06 72 CRC 09 1A CRC 09 1A Incorrectly setting the BUVP value Slave ID Function Starting address Quantity of Coils 11 06 00 10 06 73 SPT Response Slave ID Function Exception Code 11 86 04 CRC C8 DA CRC 42 66 27 EN 5-3-1-1:Exception Codes Code Name Description 01 Illegal function Unsupported Function Code Disallowed starting address or 02 Llegal data address output quantity 03 Illegal data value Disallowed read/write value Device read or write failure, 04 Slave device failure possibly exceeding limit values 5-3-2. RS-485 function list The following table shows the useful command to operate SPT series. Function Turn ON / OFF SPT series Query the SPT series input grid Query the SPT series Inverter voltage Query the SPT series Inverter current Query the SPT series Inverter power Query the SPT series grid(AC-IN) Voltage Query the SPT series battery voltage Query the SPT series mosfet temperture Query the SPT series Error signals Query the SPT series Warn signals Command address and description Function:05 Address: 0x0000 SET 00 00:Power OFF SET FF 00:Power ON Function:04 Address: 0x0003 Function:04 Address: 0x0000 Function:04 Function:04 Function:04 Address: 0x0001 Address: 0x0002 Address: 0x0003 Function:04 Address: 0x0009 Function:04 Function:04 Function:04 Function:02 Address: 0x000A Address: 0x000B Address: 0x000C Address: Query the SPT series status Address 0x0000 0x0001 0x0002 0x0003 0x0004 Description BUVP BOVP OLPL OLPM OLPH 28 Function Command address and description 0x0007 OTP 0x000A Bempty 0x0010 BUVW 0x0011 BOVW Status definition refer to Table 24. Status definition Query the Function Setup Value with the help of Function Codes Setup the Function Value with the help of Function Codes Function:03 Address: Function address 0x0010 0x0011 0x0012 0x0013 0x0014 0x0015 0x0016 0x0017 0x0018 Function:06 Address: Function address 0x0010 0x0011 0x0012 0x0013 0x0014 0x0015 0x0016 0x0017 0x0018 Table 23. RS-485 function list Setting Menu OVP setting OVP Recovery UVP Setting UVP Recovery Warning Voltage Retry time saving enable saving power Saving time out Setting Menu OVP setting OVP Recovery UVP Setting UVP Recovery Warning Voltage Retry time saving enable saving power Saving time out 29 EN Description BUVP Protection BOVP Protection OLPL Protection OLPM Protection OLPH Protection OTP Protection Bempty Protection BUVW BOVW SPT-1200/2000/3000 Status Definition address 0x0000 0x0001 0x0002 0x0003 0x0004 0x0007 0x000A 0x0010 0x0011 Definition BUVP: Battery Under Voltage Protection BOVP: Battery Over Voltage Protection OLPL: Over Load Protection Low (101~120%) OLPM: Over Load Protection Middle (121~200%) OLPH: Over Load Protection High (>200%) OTP: Over Temperature Protection by Component Bempty: Battery empty Protection BUVW: Battery Under Voltage Warning BOVW: Battery Over Voltage Warning Table 24. SPT-1200/2000/3000 Status Definition 5-3-2-1. Function:06, Address 0x0010 : OVP setting SETT <value> 05 DC 06 72 <1500 1650> Default 06 72 <1650> Description 16.50V=1650*0.01V *SET 05H DCH : 15.00V, SET 06H 0EH:15.50V, SET 06H 40H:16.00V , SET 06H 72H:16.50V Table 25. OVP setting 5-3-2-2. Function:06, Address 0x0011 : OVP Recovery SETT <value> 00 00 01 2C <0 300> Default 01 2C <300> Description 13.50V = 16.50V 3.00V *SET 00H 00H: 0.00V, SET 00H 96H:1.50V , SET 01H 2CH:3.00V Table 26. OVP recovery 5-3-2-3. Function:06, Address 0x0012 :UVP setting SETT <value> 03 E8 04 7E <1000 1150> Default 03 E8 <1000> Description 10.00V=1000*0.01V *SET 03H E8H: 10.00V, SET 04H 1AH: 10.50V , SET 04H 4CH:11.00V, SET 04H 7EH:11.50V, Table 27. UVP setting 30 5-3-2-4. Function:06, Address 0x0013 : UVP Recovery SETT <value> 00 00 01 2C <0 300> Default 00 FA <250> Description 12.50V = 10.00V + 2.50V *SET 00H 00H: 0.00V, SET 00H 96H:1.50V , SET 01H 2CH:3.00V, Table 28. UVP recovery 5-3-2-5. Function:06, Address 0x0014 : Warning Voltage SETT <value> 00 00 00 64 <0 200> Default 00 64 <100> Description 11.00V = 10.00V + 1.00V *SET 00H 00H: 0.00V, SET 00H 64H:1.00V , SET 00H C8H:2.00V, Table 29. Warning Voltage 5-3-2-6. Function:06, Address 0x0015 : Retry time SETT <value> 00 00 00 0F <0 15> *SET 00H 00H: 0, SET 00H 09H:9 , SET 00H 0FH:15 Table 30. Retry time Default 00 03 <3> 5-3-2-7. Function:06, Address 0x0016 : saving enable SETT <value> 00 00 00 01 <0 1> Default 00 00 <0> *SET 00H 01H : Saving on ; SET 00H 00H : Saving off Table 31. saving enable 5-3-2-8. Function:06, Address 0x0017 : saving power SETT <value> 00 01 00 09 <1 9> Default 00 01 <1> * SET 00H 01H : 5W , SET 00H 04H : 20W, SET 00H 07H : 35W, SET 00H 09H : 45W Table 32. saving power 31 EN 5-3-2-9. Function:06, Address 0x0018 : Saving time out SETT <value> 00 00 00 0A <0 10> Default 00 00 <0> * SET 00H 00H: OFF, SET 00H 03H : 3min. , SET 00H 06H : 6min., SET 00H 09H : 9min., SET 00H 0AH : 10min. Table 33. Saving time out 32 6. Trouble Shooting Status LED Slow Blink Orange Fast Blink Orange Intermittent Blink Red Buzzer states N/A N/A one short beeping per 1.6sec. Status Solution Over Voltage 1. Check DC input voltage. Alarm Under Voltage Alarm 1.Check DC input voltage. 2.Check DC input connection and wring cable. 1. Improve ventilation. Make sure Over Temperature ventilation openings in inverter are Protection not obstructed. 2. Reduce ambient temperature. Intermittent Blink Red Intermittent Blink Red Fast Blink Red N/A two short beepings per 1.6sec. one short beeping per 0.7sec. OVP Shut down UVP Shut down Over Load Protection 1.Check DC input voltage and Reduce DC input voltage 1. Check DC input voltage. Increase DC input voltage. 2. Check DC input connection and wring cable. 3. Recharge battery. 1.Reduce load in case of restart failed. 2. Re-start the unit manually. Solid Red DC Reverse Status LED Solid Red N/A Hardware fault 1.Contact local service center Buzzer states N/A Status DC Reverse Solution 1.Check DC+ /DC- cable connection (refer 4.1) Table 34. Trouble Shooting 33 EN 7. Information 7-1. Warning Warning! Do not open or disassemble the Inverter. Attempting to do so may cause risk of electrical shock or fire. 7-2. Warranty We guarantee this product against defects in materials and workmanship for a period of 24 months from the date of purchase. In case you need to repair or replace any defective power inverters, please contact COTEK local distributor. 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. 34 No.33, Sec. 2, Renhe Rd., Daxi Dist., Taoyuan City 33548, Taiwan Phone+886-3-3891999 FAX+886-3-3802333 http// www.cotek.com.tw 2025.01