SC Series User’s Manual SC-1200 / SC-2000 PURE SINE WAVE INVERTER CHARGER
EN Table of Content 1. 2. 3. 4. SAFETY INSTRUCTIONS 1 1-1. Warnings and symbols 1 1-2. Use for intended purpose general safety precautions 1 1-3. Other safety notes and installation precautions 1 1-4. Warning regarding the use of batteries 2 FUNCTION CHARACTERISTICS INTRODUCTION 3 2-1. System overview 3 2-2. Electrical specification 4 2-3. Mechanical drawings 8 INSTALLATION AND MAINTENANCE 9 3-1. Unpacking the product 9 3-2. Front panel 9 3-3. Rear panel 14 3-4.
1. Safety Instructions 1-1. Warnings and symbols Safety instructions and warnings are marked in this manual by the following pictograms： Supplementary information on operating the device. CAUTION Safety instruction: Failure to observe this instruction can cause material damage and impair the function of the device. CAUTION Safety instruction relating to a danger from an electrical current or voltage.
EN The DC and AC side connections should be firm and tight. Grounding：Reliable grounding of rack-mounted equipment should be maintained. Do not drop a metal tool on the battery. The resulting sparks or short-circuit on the battery or on the other electrical part may cause an explosion. Wiring：Adequate input power must be supplied to the unit for proper use; correct wiring sizes must be ensured. Do not operate the unit close to combustible gas or open fire.
2. Function Characteristics Introduction 2-1. System overview The SC Series is an inverter / charger system, designed with advanced power electronic and digital signal processor technology offering the following features： Bi-directional All-in-One Design. Certified by UL ( UL458 & Supplement SA / UL1741 ). Compact Size - Highly Integration = Installation hassle-free. 5-in-1 Operating Modes Battery charger current as below table. Model No.
EN 2-2. Electrical specification Electrical Input Characteristics Specification Model No. Item SC-1200-112 SC-1200-124 SC-1200-212 SC-1200-224 Nominal Voltage 12 VDC 24 VDC 12 VDC 24 VDC Input Voltage Range (±0.5V) 10.5 ~ 16.5 VDC 21 ~ 33 VDC 10.5 ~ 16.5 VDC 21 ~ 33 VDC Input Over-Voltage Protection (±0.5V) 16.5 VDC 33 VDC 16.5 VDC 33 VDC Input Over-Voltage Warning (±0.5V) 15.5 VDC 31 VDC 15.5 VDC 31 VDC 10.5 VDC 21 VDC 10.5 VDC 21 VDC 11.0 VDC 22.0 VDC 11.0 VDC 22.
Electrical Specification Item Model No. SC-1200-112 AC Input* SC-1200-124 SC-1200-212 30 A MAX 16 A MAX Power Factor Correction(PFC) >0.95 (Max.) Auxiliary DC Output Voltage Battery Voltage Output Output Current 20A Max DC Output Characteristics Signal and Control Bypass Relay Operating Temperature SC-1200-224 Charging Current Range 12.5 / 25 / 37.5 / 50A 6.25 / 12.5 / 18.75 / 25A 12.5 / 25 / 37.5 / 50A 6.25 / 12.5 / 18.75 / 25A Max. Output Voltage 14.4 VDC @ GEL TYPE 28.
EN Specification Model No. Electrical Input Characteristics Inverter Mode Item SC-2000-112 SC-2000-124 SC-2000-212 SC-2000-224 Nominal Voltage 12 VDC 24 VDC 12 VDC 24 VDC Input Voltage Range (±0.5V) 10.5 ~ 16.5 VDC 21 ~ 33 VDC 10.5 ~ 16.5 VDC 21 ~ 33 VDC Input Over-Voltage Protection (±0.5V) 16.5 VDC 33 VDC 16.5 VDC 33 VDC Input Over-Voltage Warning (±0.5V) 15.5 VDC 31 VDC 15.5 VDC 31 VDC Input Under-Voltage Protection (±0.5V) 10.5 VDC 21 VDC 10.
Specification Model No. Electrical Item Auxiliary DC Output DC Output Characteristics Signal and Control Bypass Relay Operating Temperature Range SC-2000-112 SC-2000-124 SC-2000-212 Output Voltage Battery Voltage Output Current 20A Max SC-2000-224 Charging Current Range 25 / 50 / 75 / 100A 12.5 / 25 / 37.5 / 50A 25 / 50 / 75 / 100A 12.5 / 25 / 37.5 / 50A Max. Output Voltage 14.4 VDC @ GEL TYPE 28.8 VDC @ GEL TYPE 14.4 VDC @ GEL TYPE 28.
EN De-rating Curve Fig. 2：SC series De-rating Curve 2-3. Mechanical drawings Unit : mm[inch] Fig.
3. Installation and Maintenance During installation and commissioning of the unit, the Safety Guidelines & Measures are applicable at all times. See chapter 1 of this manual. 3-1. Unpacking the product In addition to the unit the delivery includes： Battery temperature sensor TS-01 ( optional ) Remote Control CR-20C ( optional or combo pack only ) Quick Instruction Guide After unpacking, check the contents for possible damage. Do not use the product if it is damaged.
EN Model No. AC IN AWG AC OUT AWG GROUNDING AWG SC1200-112 30A/10AWG 30A/10AWG 30A/10AWG SC1200-124 30A/10AWG 30A/10AWG 30A/10AWG SC1200-212 16A/12AWG 22A/10AWG 22A/10AWG SC1200-224 16A/12AWG 22A/10AWG 22A/10AWG SC2000-112 30A/10AWG 30A/10AWG 30A/10AWG SC2000-124 30A/10AWG 30A/10AWG 30A/10AWG SC2000-212 16A/12AWG 26A/10AWG 26A/10AWG SC2000-224 16A/12AWG 26A/10AWG 26A/10AWG This connection is used to tie the exposed chassis of the inverter to the DC grounding system.
G AC input breaker Table 4：SC series front panel introduction 3-2-1.
EN 3-2-1-5 Charger current Select Function(S9,S10)：Default : 100% Charger Current (%) S9 S10 25% OFF OFF 50% ON OFF 75% OFF ON 100% ON ON Table 9：Charger current select function definition 3-2-1-6 DC Source Output On/Off Function (S11)：Default : OFF ESB function S11 OFF OFF ON ON Table 10：DC source output On/Off function definition 3-2-1-7 Saving Function Switch On/Off Function (S12)：Default : OFF The saving mode will be triggered if the output load <20W @10seconds.
Status LED Indicator Off Inverter mode Normal Solid ON (12V: 11.5 ~ 15.0V) (24V: 23.0 ~ 30.0V) Green Normal (0~100%) Slow Blink Normal status Float mode Over Temperature Protection Equalization mode Under Temperature Fast Blink Protection Off Active mode Inverter mode Battery Low voltage (12V:11.0 ~ 11.5V) Solid ON Orange (24V:22.0 ~ 23.0V) Over load Phase or Frequency Battery High voltage (100%-115%) Failure Absorption mode (12V:15.0 ~ 15.5V) (24V:30.0 ~ 31.
EN 3-3. Rear panel G Fig. 5：SC series Rear panel introduction Rear 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 unit is delivered with a battery temperature sensor. When the battery temperature is high, the charge voltage is automatically decreased. D Battery Temp. sensor port (RJ11) (Optional) RS-232 Port：Serial port monitoring and control through computer interface.
EN Remote control terminal may be connected to a Form C relay for “FAULT” indication. When “FAULT” occurs, the relay switches. TE t conditions include Input under/over voltage, Output Short Circuit, Over Temperature, Over load and, Fan Failure. Fig.
The fan turned on by Load(%) or Temp(°C) as below chart: G Fan speed control Note: the fan full speed(100%) turned when the status of over temperature, the circuit short, and the over load occur Table 16：SC series rear panel introduction 17
EN 3-4. Mounting Instruction 3-4-1. Wall Mount ( For Marine ) Step 1. Use the screws to mount the Drip shield and the product on the wall. Step 2. Please make sure the height from the ground to product at least 70 cm. The bulkhead size requires at least 83 cm clearance each side of the inverter. Fig. 6：Wall mount step 1 Fig. 7：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.
4. System Function Introduction The SC series is a battery charger, a pure sine wave inverter and an AC transfer system in one compact enclosure. 1. The three-step charging function guarantees that the batteries are always charged 100% (User-selectable). 2. The pure sine wave inverter assures that the AC output voltage is perfectly reliable even when limited external AC power is available. 3. External AC power can be supplied by a public grid or a generator. 4.
EN 4-1-1. Battery charging function description The SC series 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). This causes the battery charger to look like a resistor to the line (forces the charge current wave shape to mirror the voltage wave shape).
4-1-4. Float charging The third charging stage occurs at the end of the absorb charging time. While final charging, the charge voltage is reduced to the final charge voltage (determined by the Battery Type selection*). In this stage, the batteries are kept fully charged and ready if needed by the inverter. The Float Charging stage reduces battery gassing, minimizes watering requirements (for flooded batteries), and ensures the batteries are maintained at optimum capacity. 4-1-5.
EN 4-2. Operation mode introduction The SC series is not just a combination of an inverter and a battery charger. There are many additional features which can be used to increase the total available AC power, even when external AC power is limited. 4-2-1. Basic operation description When there is no external “AC input” power available, the inverter of the unit provides AC power output load from the batteries. There is no AC power available on the “AC output load”. See Fig. 11. Fig.
Fig. 13：Power Sharing Function I The Power Sharing level can be set by means only remote control locally on the unit. 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. 14. Fig. 14：Power Sharing Function II 4-2-3.
EN Later, when the AC load has dropped below the setting of the Power sharing function again, the battery charger of the unit will commence to recharge the batteries. Fig. 15：Generator Function 4-2-4. Power Support function With the adjustable AC input current limit function, Power Support function of the SC inverter will trigger OLP (over-load protection) when the output power is over loaded. It can protect the input AC power device such as the utility or generator power system. Fig.
5. Trouble Shooting Status LED Indicator Slow Blink Buzzer states Status Two Short Over Temperature Protection (OTP) One Short Under Temperature Protection (UTP) N/A Grid Over / Under Voltage Protection 1. Make sure AC input is within 90Vac ~ 132Vac (110V system) or 180Vac~264Vac (220V system). N/A Grid Over Current Protect 1. Turn off the load and make sure there is no short circuit inside the load circuit. 2. Check the setup value of AC input current limit (Dip Switch S4,S5,S6). 3.
EN 2. Do not expose charger to rain or snow. 3. Use of an attachment not recommended or sold by the marine unit manufacturer may result in a risk of fire, electric shock, or injury to persons. 4. Do not disassemble marine unit; take it to a qualified serviceman when service or repair is required. Incorrect reassembly may result in a risk of electric shock or fire. 5. To reduce risk of electric shock, unplug marine unit from outlet before attempting any maintenance or cleaning.
Clean battery terminals. Be careful to keep corrosion from coming in contact with eyes. Study all battery manufacturer’s specific precautions such as removing or not removing cell caps while charging and recommended rates of charge Add distilled water in each cell until battery acid reaches level specified by battery manufacturer. This helps purge excessive gas from cells. Do not overfill. For a battery without cell caps, carefully follow manufacturer’s recharging instructions. 8.
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 2018.
