MODEL manual 1620 SWITCH MODE BATTERY CHARGER Applicable to 230VAC units only ® Before charging, read instructions carefully!
IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS Read the Operating Instructions carefully before using the Model 1620 charger. 1. WARNING – Failure to install and operate the charger in accordance with these instructions may result in damage to the charger or injury to the operator. 2. WARNING – Never place the charger directly above or below the battery being charged. Gases or fluids from the battery will corrode and damage the charger.
CONTENTS 1. Model Encodement.............................. page 1 2. Technical Specifications................... page 1 3. Installation.............................................. page 7 4. Operation.................................................... page 8 5. Troubleshooting.................................. page 9 6. Maintenance............................................
1 2 MODEL ENCODEMENT 1620uv-www/xx/yy-zzz 1620 u v - www / Input Voltage Output Voltage F Fan cooled S Sealed 120 120VAC 24 24VDC Model Cooling Sealing 2.1 Electrical xx / 230 230VAC yy Output Current - zzz Series Number 20 001 20 Amps Consult Factory for additional options TECHNICAL SPECIFICATIONS Input: Voltage: Frequency Range: Input Current: 120VAC models 100-132VAC 57-63Hz 12Arms max. @ 100VAC/60Hz Output Voltage: Output Current: Output Max.
J2-1 J2-2 J2-3 100V max., 60mA max. Wiring diagram 1. 2.4 Environmental Operating temperature: Storage temperature: Humidity: Shock: Vibration: Protection: 0°C to +50°C -40°C to +85°C 95% non-condensing at 38°C SAEJ1378, 55g pulse at 9-13ms 5g rms, 5-500 Hz, 2 hrs. per axis IP-54, including fan 2.
2.7.1 – End of Charge Mode Figure 1. Charge profile for End of Charge Mode Figure 1 defines the charge profile for the End of Charge Mode. As long as the battery voltage (V) is above Undervoltage Lockout Level (Vuvlo), charging will start after short delay of about 6 seconds. For battery voltage between Vuvlo and Vlv, charge current will be limited to lower value (Ilv) in order to prevent gassing damage to the batteries.
2.7.2- Equalize Mode after End of Charge Mode Figure 2. Charge profile for Equalize Mode Figure 2 defines the charge profile for the Equalize Mode. After going through bulk charge and Constant Voltage modes, the charger will reduce its output current to Top-Off Current (Ito) until one of the two possible outcomes occurs: (1) Battery voltage rises to Equalize Voltage (Vequ) or (2) Equalize Time-Out (Tto) is reached.
2.7.3 - Float Mode Figure 3. Charge profile for Float Mode Figure 3 defines the charge profile for the Float Mode. In this mode of operation, batteries are maintained at full charge. In addition to maintaining full charge, the charger can support a load current – as long as the combined load current and battery charging requirements do not exceed the output current defined in the Constant Current setpoint (Icc, default value of 20A in the Basic Mode).
2.8 Indication Lights The charger features built in diagnostics. Refer to the table below to interpret the flashing of the green and yellow indicator lights.
3 page 7 1 INSTALLATION 3.1 Unit should be securely mounted to a flat surface. 3.2 The power cord to the IEC 320/C14 connector should be of the appropriate gauge to carry a 15A current, for the cable’s length, to meet the requirements of applicable electrical codes. The power cord must meet IEC requirements with a minimum cross section of 1.5mm. 3.
4 OPERATION 4.1 Charging the battery 4.1.1 If using the motor speed controller inhibit, and a Curtis motor controller is present, connect the Motor Controller Inhibit connector to the appropriate connector on the motor speed controller. 4.1.2 Connect the (–) terminal of the charger to the (–) terminal of the battery. 4.1.3 Connect the (+) terminal of the charger to the (+) terminal of the battery. 4.1.4 Plug the charger into an appropriate AC power source. 4.1.
5 TROUBLESHOOTING The following checklist should help you to troubleshoot any problems with the charger. Make sure to observe all safety instructions provided on the unit and in this manual. Flash Pattern Indication Solution Yellow and Green blink1 together No battery or reverse polarity Battery may be disconnected from charger or connected back wards. Battery may be severely discharged. Lower Vulvo in the software setting. Battery damaged. Replace battery.
6 MAINTENANCE Excess dirt or grime may be removed from the unit by wiping it with a cloth dampened with water. Although Curtis chargers are equipped with a fan designed to last the life of the charger, exposure to harsh environments – such as dusty condition, grease, chemicals, etc. – may impair the effectiveness of the fan. If the operation of the fan is noticeably degraded, Curtis recommends an immediate replacement of the fan with Curtis Part Number 17603351, 1620 Fan Assembly. 6.
Table 1. Programming Parameters Programming mode BASIC MODE 2 Description Programming Limits 1 or 2 Default Value Increment 1 1 1, 2, or 3 1 1 Constant Current (Icc) 10-20A 20A 0.5A Constant Voltage Level (Vcv) 26-30V 29V 0.1VDC Low Voltage Current (Ilv) 2-10A 6A 0.5A Top-off current (Ito) 2-10A 6A 0.5A End of charge ("soft" overvoltage) (Veoc) 29-35V 31VDC 0.1V EoC Threshold (Icv) 2-20A 4A 0.5A Restart Voltage (Vrst) 22-28v 26VDC 0.1V 0-26VDC 24VDC 0.
Accuracy* Definition 1-FLA: Float voltage is set to 26.8V, Constant voltage set to 29V. 2-SLA: Float voltage set to 27.6V, Constant voltage to 29.4V 1-OFF: Charger goes into standby. Charger will cycle to recharge the battery as determined by Vrst and enter standby at the end of the charge cycle. 2-EQUALIZE: Charger adjusts its output current to Ito, and drives the battery to Vequ. It has the time allotted by Tto to do this or a fault will occur.
CURTIS INSTRUMENTS, INC. 200 Kisco Avenue, Mt. Kisco, NY 10549 • Tel: (914) 666-2971 • FAX (914) 666-2188 www.curtisinst.com is a registered trademark of Curtis Instruments, Inc. Specifications subject to change without notice © 2005 CURTIS INSTRUMENTS, INC.
