SL Series User’s Manual SL-2000 / SL-3000 PURE SINE WAVE INVERTER CHARGER WITH SUPPORT / SHARING / GENERATOR
Legal Provisions Copyrights 2017 COTEK Electronic IND. CO. All Rights Reserved. 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. CO., LTD.
Table of Content 1. 2. 3. 4. SAFETY INTRODUCTIONS 1 1-1. General Safety Precautions 1 1-2. Personal Precautions 1 1-3. Other Safety Notes 3 FUNCTION CHARACTERISTICS INTRODUCTION 4 2-1. System Overview 4 2-2. Electrical Specification 5 2-3. Mechanical Drawings (Unit：mm [inch]) 6 INSTALLATION AND MAINTENANCE 7 3-1. Unpacking the product 7 3-2. Front Panel Introduction 7 3-3. AC Wiring Installation 9 3-4. Mounting Instruction 11 3-5.
1. Safety Introductions 1-1. General Safety Precautions This manual contains important safety and operating instructions SL series. WARNING To reduce risk of injury, charge only Lead-acid type rechargeable batteries. Other types of batteries may burst causing personal injury and damage. 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.
vii) Remove personal metal items such as rings, bracelets, necklaces, and watches when working with a lead-acid battery. A lead-acid battery can produce a short-circuit current high enough to weld a ring or the like to metal, causing a severe burn. viii) NEVER charge a frozen battery. ix) If necessary to remove battery from vessel, always remove grounded terminal from battery first. Make sure all accessories in the vessels are off, so as not to cause an arc.
RECOMMEND GFCI CONNECTOR a) HUBBELL INC WIRING DEVICE DIV, Type GFRST20. Rated 125V, 20A b) COOPER WIRING DEVICES, Type SGF20. Rated 125V, 20A c) Leviton Mfg. Co. Ltd, Type GFNT2. Rated 125V, 20A WARNING REGARDING THE USE OF BATTERIES Excessive battery discharge and / or high charging voltage can cause serious damage to batteries. Do not exceed the recommended limits of discharge level of your batteries. Avoid short circuiting batteries, as this may result in explosion and fire hazard.
2. Function Characteristics Introduction 2-1. System Overview The SL Series is an inverter / charger system, designed with advanced power electronic and microprocessor technology offering the following features： The unit is equipped with a self diagnosis microprocessor that is able to identify and show all failure messages on the LED, with associated visual/audio alarms. Battery charger current 100A max for SL-2000,125A max for SL-3000,@12VDC Equalization charging function for the batteries.
2-2. Electrical Specification Specification Model No. Electrical Item Input SL-2000-112 SL-3000-112 DC Voltage 12 VDC Input Voltage Range 9~17 VDC±0.3V Input Over-Voltage Protection Default 17 VDC , 16.5 ~ 17 VDC Input Under-Voltage Protection Default 9 VDC , 9 ~ 10.5 VDC Max.
Electrical Operating Temp. Range Specification Item -20 ℃ ~ 40 ℃ Power de-rating 60 W per ℃, 41~60 ℃ Storage -30 ℃~70 ℃ Sensor on Transformer, MOSFETs, Battery, and Internal ambient Operating Humidity Range Mechanical Specification SL-3000-112 Full Load Over-temperature Protection Ground Relay Model No. SL-2000-112 0~95% Non-condensing Default setting is open. User may connect Neutral to ground at inverter mode if necessary, as ground relay is included in SL series.
3. Installation and Maintenance 3-1. Unpacking the product The package of SL inverter charger includes： SL inverter charger Battery temperature sensor DC Terminal cover ( Red / Black) Screw x 8 pcs Ring Lug x 2 pcs Quick Guide Instruction and QR Code Sticker After unpacking, check the contents for possible damage. Do not use the product if it is damaged. In case of the contents damaged, please contact your supplier.
Front panel Follow the instructions to connect the battery cables to the DC input terminals of the unit. 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.
⑨ AC Input Connections Two 1 inch knockouts provided with cable-clamp strain reliefs to allow and hold the AC input and output field wiring. ⑩ AC Output Connections This connection is used to tie the exposed chassis of the inverter to the DC grounding system. This terminal accepts CU/AL conductors from #14 to #2 AWG (2.1 to 33.6 mm2). WARNING! ⑪ The ground wire offers protection only if the cabinet of the unit is connected to the safety Chassis Ground ground.
3-3-2. Single Phase, Single IN / Single OUT Fig. 5：AC Wiring – Single Phase, Single IN / Single OUT 3-3-2. Split Phase, Dual IN / Dual OUT Fig.
3-4. Mounting Instruction 3-4-1. Wall Mount ( For Marine ) Step 1. Use the screws to mount the Drip shield on the wall. Step 2. Use the screws to mount the product under the Drip shield. Please make sure the height from the ground to product at least 70 cm. Fig. 7：Wall mount step 1 Fig. 8：Wall mount step 2 3-4-2. Ceiling Mount ( For Vehicle and Marine ) Use the screws to mount the product on the wall, and the product mounting requirement is as follow: a.
3-5.
4. System Function Introduction SL series is a battery charger, a pure sine wave inverter and an AC transfer system in one compact enclosure. The three-step charging function guarantees that the batteries are always charged 100%. The pure sine wave inverter assures that the AC output voltage is perfectly reliable even when limited external AC power is available. External AC power can be supplied by a public grid or a generator. DC power can be delivered by charged batteries. 4-1.
4-1-1. Battery Charging Function Description SL series is equipped with a PFC (Power Factor Corrected) and PI (Proportional-Integral) multistage battery charger. The PFC feature controls the amount of power used to charge the batteries to obtain a power factor as close as possible to 1 (or unity).. The PI feature allows the charger voltage and current to change independently. These two features maximize the real power available from the AC power source (i.e.
4-1-5. Equalization Charging The intent of this charging procedure is active between abs and final is to remove sulfation that formed as a result of the batteries being undercharged. Another objective is to bring all cells to an equal state of charge. While Equaliztion charging，the charge voltage increase to 14.1V continue a cycle is 240 minute(automatic shutdown). During equalizing charge, check the changes in the SG reading every hour and disconnect the charge when the gravity no longer rises.
4-1-7. Charger Setting for various battery types The following table gives the Absorption, Float and Equalization voltage settings for batteries commonly used： Battery Type Gel Flooded AGM 1 Inverter Voltage 12 VDC AGM 2 Absorption Voltage 14.1VDC 14.6VDC 14.3VDC Float Voltage 13.6VDC 13.4VDC 13.1VDC Equalization Voltage NOTE! 15.5VDC 15.5VDC 14.5VDC 13.
4-2-2. Charger Mode When external AC power comes available, the transfer relay switches on. See Fig. 13.. The batteries are being recharged now. (If only one phase AC input is available, please connect to IN1 and ACN-IN) Fig. 13：Charger mode 4-2-3. Power Sharing Mode If the available power at the AC-input is limited, and the load connected to the AC output load increases, the external AC circuit breaker may trip accordingly.
Fig. 14：Power Sharing Mode I Example: In Fig.14, Input AC current level is set to a 20 Amps while the AC output loads consume a total of 10Amps. This means that only 20 – 10 = 10 Amps is left over for charging. The input AC current level can be set only by remote control. When the total connected AC load reaches the level of the Power Sharing setting (20A), there will be no power left over to charge the battery. This means that the charge current of the unit will be reduced to 0A. See Fig.15. Fig.
4-2-4. Generator Mode If the demand for AC power still increases, the external AC circuit breaker may still trip if nothing is done. This problem can be solved by the Generator function. If the total demand for energy exceeds the maximum external power supply, energy can be added to the AC outputs load by means of the inverter Example See Fig. 16, Input AC current is still limited to 20 Amps.
5. Trouble Shooting LED Status BUZZER Status Solid Red Red Blink Three Short Description Solution Power off Check power switch Over Voltage Protection Check input voltage. reduce input voltage (Input DC voltage over spec) Red Fast Blink Two Short Under Voltage Protection (Input DC voltage under spec) Orange solid Orange Blink Five Short One Short 1.Check connections and cable 2.
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 2017.
