Cotek SD2500 User Manual
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Cotek SD2500 User Manual

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SD Series User's Manual
SD2500 / SD3500
PURE SINE WAVE INVERTER

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Summary of Contents for Cotek SD2500

  • Page 1 SD Series User’s Manual SD2500 / SD3500 PURE SINE WAVE INVERTER...
  • Page 2 Any part of this document may not be reproduced in any form for any purpose without the prior written permission of COTEK Electronic IND. CO. For the conditions of the permission to use this manual for publication, contact COTEK Electronic IND. CO., LTD. In all related COTEK product activities, Neither COTEK Electronic IND.

  • Page 3: Table Of Contents

    Table of Content 1. IMPORTANT SAFETY INFORMATION 1-1. General Safety Precautions 1-2. Precautions When Working with Batteries 1-3. Installation 2. FUNCTIONAL CHARACTERISTICS 2-1. General Information 2-2. Application 2-3. Electrical Performance 2-4. Mechanical Drawings 3. INTRODUCTION 3-1. Power ON / OFF / REMOTE (Main) switch 3-2.
  • Page 4 4. DC WIRING CONNECTIONS 4-1. DC Input Terminals 4-2. Hard-wire Installation 5. PARALLEL MODE 5-1. Prepare for Parallel Usage 5-2. Industry Applications 5-3. DC Wiring for Parallel Usage 5-4. AC Wiring Diagram 5-5. Remote command for the parallel connection 5-6. Remove Parallel Connection 6.

  • Page 5: Important Safety Information

    Important Safety Information 1.Important Safety Information WARNING! Before using the inverter, read and save the safety instructions. 1-1. General Safety Precautions 1-1-1. Do not expose the Inverter to rain, snow, spray, bilge or dust. To reduce risk of hazard, do not cover or obstruct the ventilation openings. Do not install the inverter in a zero-clearance compartment.

  • Page 6: Installation

    1-3. Installation The power inverter should be installed in a location that meets the following requirements Dry – Do not allow water to drip or splash on the inverter. Cool – Ambient air temperature should be between -20 and 50 , but he cooler the better.

  • Page 7: Functional Characteristics

    Functional Characteristics 2.Functional Characteristics 2-1. General Information SD-series is new generation power inverter equipped with N+1 parallel power function , 3-phase capability, and AC transfer switch. SD series is suitable for RV, Marine and Emergency appliances. Features Parallel redundancy design for power expansion Multiple industrial applications that create 1Ф3W / 3Ф4W power systems User-friendly remote control Automatic master mechanism to eliminate single point failure and optimize...

  • Page 8: Electrical Performance

    2-3. Electrical Performance 2-3-1. SD2500 Specification MODEL SD2500-112 SD2500-124 SD2500-148 SD2500-212 SD2500-224 SD2500-248 Output Rating Power 2500W (de-rating after 40°C, refer to de-rating curve) Peak Power (3Sec.) 3000W Surge Power (<0.2Sec.) 4000W Waveform Pure Sine Wave Efficiency (Max.) Output Voltage 100 / 110 / 115 / 120VAC ±...
  • Page 9 Functional Characteristics MODEL SD2500-112 SD2500-124 SD2500-148 SD2500-212 SD2500-224 SD2500-248 Environment Working Temp. -20 +60°C; refer SD2500 power de-rating curve Storage Temp. -40 +70°C Relative Humidity Max. 90%, non-condensing Safety & EMC Certified UL 458 Safety Standards ---- Certified EN60950-1 (UL only for hardwire) ②...
  • Page 10 2-3-2. SD3500 Specification MODEL SD3500-112 SD3500-124 SD3500-148 SD3500-212 SD3500-224 SD3500-248 Output 3500W Rating Power (de-rating after 35°C, refer to de-rating curve for 12V) (de-rating after 40°C, refer to de-rating curve for 24V and 48V) Peak Power (3Sec.) 4500W Surge Power (<0.2Sec.) 6000W Waveform Pure Sine Wave Efficiency (Max.)
  • Page 11 Please refer to P.8 Transfer-Time Table. ① EN 55014-1, EN 55014-2 Class B: output cable less than 2 meters. ② De-rating Curve Figure 1. SD2500 de-rating curve Figure 2. SD3500 de-rating curve...

  • Page 12: Mechanical Drawings

    2-4. Mechanical Drawings Figure 3. SD series mechanical drawings Model A (mm) B (mm) C (mm) D (mm) E (mm) F (mm) G (mm) H (mm) SD2500 240.0 95.6 268.6 11.5 SD3500 240.0 125.6 268.6 11.5 Table 2. SD series dimension...

  • Page 13: Introduction

    Introduction 3.Introduction Version 1 General Model Figure 4. SD general model front panel Version 2 UL Model Figure 5. SD UL model front panel Figure 6. SD series rear panel...

  • Page 14: Power On / Off / Remote (Main) Switch

    Front Panel / Rear Panel Power ON/OFF/REMOTE (Main) switch AC output socket Status LED Reset Button Dip Switch (S1~S8) CAN2 Port (only to be used in parallel mode) DC Input - CAN1 Port (only to be used in parallel mode) LCM Port (Connection for LCD remote control DC Input + panel)

  • Page 15: Dip Switch (S1~S8) Assignment

    Power Saving Mode is adjustable and set by the Dip Switches,S4, S5 and S6 on the front panel. Example SD2500 Saving set 2%, the load is below 50W 10 sec. will into saving mode, more than 150W or more leave saving mode.

  • Page 16: Dc Input

    B. Power device leaving saving mode(re-start) Restart threshold = rate power x setting % x 2~3 In case the power over the restart threshold, the power device will re-start and provide the AC power. Scenario Power saving DISABLE Go in power saving mode when output load is under 2% of rating power Go in power saving mode when output load is under 3% of rating power...

  • Page 17: Dc Input

    Introduction 3-5. DC Input + (please refer to DC wiring connections on p. 17) 3-6.Chassis Ground Connect the wire # 8 AWG to vehicle chassis WARNING! Operating the inverter without a proper ground connection may cause electrical safety hazard. 3-7. AC Output (Please refer to hard wiring installation on p.

  • Page 18: Lcm Port

    WARNING! LCM port is for remote control connection only. Please make sure the connection is correct. (CAN cable to CAN1 / CAN2 port , Remote cable to LCM port) If CAN cable is connected to LCM port, or vice versa, the inverter will be damaged.

  • Page 19: Green Terminal

    Introduction 3-14. Green terminal (Remote and Parallel select) Figure 11. Green terminal PIN # PIN Assignment -ENB Parallel Jump Parallel Jump Table 12. Green terminal PIN assignment 3-14-1. Parallel Jump Function (please refer to section 5 for further detailed info.) 1.

  • Page 20: Fan Ventilation

    Figure 14. RS-232 cable SD Series Computer PIN Num. Signal Description PIN Num. Signal Description Not used Not used Not used Not used Not used Not used Table 13. The connection between SD series and computer The connection between this SD-series and the computer is as follows Figure 15.

  • Page 21: Dc Wiring Connections

    The following are recommended cable diameter for the best performance of the inverter. (Applies to both 120V and 230V versions) Model No. Wire AWG Inline Fuse SD2500-112 / 212 # 3/0 350 A SD2500-124 / 224 175 A SD2500-148 / 248...

  • Page 22: Dc Input Terminals

    Do not place anything between battery cable lug and terminal surface. Assemble exactly as shown. Figure 16. Battery cabling WARNING! During the first installation, it is normal to experience a small spark is a normal phenomenon because the internal capacitors charging. Do not be concerned. 4-1.

  • Page 23: Hard-Wire Installation

    DC Wiring Connections 4-2. Hard-wire Installation 4-2-1. SD series provides the flexibility of hard-wire connection, and this function will make external control panel wiring easier. Version 1 General model Step 1. Remove the four screws of AC wiring compartment and pull it out with care. Figure 17.
  • Page 24 The only difference between 110V and 220V is within the AC Input breaker L or N and thus will not affect the wiring configuration. Note In case that user wants to install the earth-leakage circuit breaker, COTEK recommend time delay type. The major specification of the circuit breaker is as following Earth-leakage current 100mA, 300mA, 500mA Time 0.45 second, 1 second, 2 seconds...
  • Page 25 DC Wiring Connections Figure 22. UL model setting AC wiring Step 3. Use the screwdriver to fix the cover. Figure 23. UL model setting Step 3 4-2-2. Connect AC output and AC input wiring to the SD series terminals. Please take the following information as your reference. Terminal Wire Color Wire Length / Gauge...
  • Page 26 When the unit is transferring power from the AC input source, the grounding condition of the “N” terminal of the AC output will be the same as the condition of the “N” terminal of the AC input source. If the AC input source is the power supplied from the utility, the “N”...
  • Page 27 DC Wiring Connections Note Recommend GFCI connector HUBBELL INC WIRING DEVICE DIV, Type GF20 and GFRST20. Rated 125V, 20A COOPER WIRING DEVICES, Type VGF20 and SGF20. Rated 125V, LEVITON MFG CO INC, Type 7899-W and GFNT2. Rated 125V, 20A PASS & SEYMOUR INC, Type 2097. Rated 125V, 20A WARNING! When using full power, it is recommended to use the wiring terminal.

  • Page 28: Parallel Mode

    5.Parallel Mode 5-1. Prepare for Parallel Usage 1. Before setting, you need to ensure that the main switch is ”OFF”. 2. Before using the parallel function, you need to set the parallel jump of the green terminal the status of which must be “ON”, if the between in another SD is set to ”OFF”...

  • Page 29: Industry Applications

    Drawing The SD series create 1Ф3W power system, L1-L2 Voltage is L1-N double. Example Example Example SD2500-124 set output 100V / SD2500-124 set output 100V / SD2500-124 set output 100V / 50Hz 50Hz 50Hz The phase voltage is 100V /...
  • Page 30 Type 1Φ2W 1Φ3W 3Φ4W Waveform Battery Set up Do not support N+1 operation, maximum of three Transfer Switch STS Do not support N+1 SD inverters, THD < 4% module Single < 4ms; N+1 operation, maximum of two Warning & 1P3W & 3P4W < 6ms SD inverters, THD <...

  • Page 31: Dc Wiring For Parallel Usage

    Parallel Mode 5-2-2. 1Φ2W Switch Table Auto Master Auto Master Table 22. 1Φ2W switch table auto master 5-2-3. 1Φ3W Switch Table Master Slave 180° Table 23. 1Φ3W switch table 5-2-4. 3Φ4W Switch Table L1 Master L2 -120° Slave L2 +120° Slave Table 24.
  • Page 32 Figure 27. Connection Diagram_2 Figure 28. Connection Diagram_3...

  • Page 33: Ac Wiring Diagram

    Parallel Mode 5-4. AC Wiring Diagram Figure 29. SD series front panel introduction 1Φ2W Wiring Diagram Figure 30. 1Φ2W parallel AC wiring diagram...
  • Page 34 1Φ2W Auto Master Wiring Diagram Figure 31. 1Φ2W parallel AC wiring diagram auto master Note Auto master can be operated under 1Φ2W mode. Under 1Φ2W auto master mode, please set up the inverter by Ethernet or Remote control CR-10. Note 1Φ2W system parallel Max.
  • Page 35 Parallel Mode 1Φ3W Wiring Diagram Figure 32. 1Φ3W parallel AC wiring diagram...
  • Page 36 Figure 33. 3Φ4W parallel AC wiring diagram Connection / Model 100V 110V 115V 120V 200V 220V 230V 240V Output VAC L1-to-L2 L2-to-L3 L3-to-L1 SD2500 L1-to-N L2-to-N L3-to-N L1-to-L2 L2-to-L3 L3-to-L1 SD3500 L1-to-N L2-to-N L3-to-N Table 25. Connection & output VAC under 3Φ4W...

  • Page 37: Remote Command For The Parallel Connection

    Parallel Mode 5-5. Remote command for the parallel connection There are two ways for parallel connection remote setting 1. RS-232, 2. CAN-Bus. The RS-232 communication protocol not support broadcast function. In case of the remote control use the RS-232 port, please follow the setting steps for the SD setting.

  • Page 38: Rs-232 Command

    6.RS-232 Command 6-1. RS-232 command introduction 6-1-1. RS-232 command Command format This unit uses high-level language commands with a CR (0DH) and LF (0AH) as the end of the command. The system would interpret and execute the command only after these two characters are received.
  • Page 39 RS-232 Command 6-1-3. Command for accessing Setup Menus and adjusting values <Function Code> Setting Menu <Function Code> Setting Menu FUNC0 OVP Setting FUNC10 Shut-down retry FUNC1 OVP Recovery FUNC11 Saving Level FUNC2 UVP Setting FUNC12 Saving Interval FUNC3 UVP Recovery FUNC13 Bypass Relay UV Alarm...
  • Page 40 2. OVP Recovery <FUNC1> When the DC input voltage is higher than the OVP setting, the SD-series shuts-down; once the input voltage falls below the set OVP value, the SD-series will automatically restart. Default = 15 VDC @ 12V Model, 30 VDC @ 24V Model, 60 VDC @ 48V Model Model Setting value range...
  • Page 41 RS-232 Command Note The value of the voltage set for the “UV Alarm” should be equal to or higher than the value set for “UVP” or else the unit will shut-down without any audible warning. 6. O/P Voltage <FUNC5> Setting the SD-series output voltage on the inverter operation.
  • Page 42 Example2 When user setting value= Disable, the SD-series “Output frequency” is within the range of 47 Hz~63 Hz, the internal transfer relay will close. Default= 7Hz Model Setting value range 110 V 0 ~ 7 Hz 230 V 0 ~ 7 Hz Table 37.
  • Page 43 RS-232 Command If the AC Load is 3 times higher than Saving Level, inverter will recover and output normally to AC Load. 14. Bypass Relay <FUNC13> The setup is provided in one of the following two ways. On-line Mode or Off-line Mode ( Exacting, Normal, Haphazard). Default = Normal (Off line).
  • Page 44 Transfer-Time Table Mode Transfer Switch Frequency is synchronized: < 4ms.; Inverter to utility AC: 8~10ms.; Frequency is not synchronized: Haphazard Utility AC to inverter: 16~50ms. Inverter to utility AC: < 4ms.; Utility AC to inverter: 16~50ms. Inverter to utility AC: 8~10ms.; Normal <...
  • Page 45 RS-232 Command 18. Alert Setting <FUNC17> When alert occurs, the internal dry contact relay will open/close. Default = Alert, SHDN Setting range = 0~3 Setting Menu SETT (RS-232) Alert (LCD) Disable SHDN Buzzer Setting Alert Alert , SHDN Table 44. Alert Setting <FUNC17> 19.

  • Page 46: Troubleshooting

    We guarantee this product against defects in materials and workmanship for a period of 24 months from the date of purchase. Please contact with your local COTEK authorized distributor for RMA (Return material Authorization) service. Please note that COTEK will ensure our products are operational before delivery and the warranty service is offered to the unit which has defect caused under normal use, in the judgment of COTEK’s...
  • Page 48 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 2016.07._A7...

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Sd3500

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