Samlexpower SEC-1260A Owner's Manual

Contents

Samlexpower SEC-1260A Owner's Manual Manual pdf 16 page image

PROTECTIONSThe charger has the following protections:SHORT CIRCUIT SHUT DOWNIn case of a short circuit on the output side, the output of the charger will be shut down. TheCharging Indication LED (4) on the front panel will turn red (On the Remote Panel (15), thered LED “I Phase” will light, the green LED “Power” will, however, remain lighted). Thecharger will be latched in this shut down condition and will NOT recover automatically evenafter the short circuit condition is removed. To reset, the AC input power on / off switch (9)at the back of the unit has to be switched off and on again.OVER LOAD CURRENT LIMITINGThe current drawn by the load is automatically limited to a maximum of 60 A for SEC-1260A(30 A +/- 1 A in “Half Power Mode”), 80 A for SEC-1280A (40 A +/- 1 A in “Half PowerMode”) and 40 A for SEC-2440A (20 A +/- 1 A when in “Half Power Mode”). If the loadtries to draw a higher current than these limits, the output voltage of the unit will start todrop. The unit will automatically recover when the overload condition is removed.REVERSE BATTERY CONNECTION CUT OFFThe output is internally fused on the DC side – 2 x 35 A fuses for SEC-1260A, 3 x 30 A fusesfor SEC-1280A and 3 X 15 A fuses for SEC-2440A. In case, the polarity of the batteryconnection is reversed, the fuse(s) will blow. The Charging Indication LED (4) on the frontpanel will turn red (On the Remote Panel (15), the red LED “I Phase” will light, the greenLED “Power” will, however, remain lighted). The fuse(s) will be required to be replaced forthe unit to function again.THERMAL OVERLOAD SHUTDOWNCAUTION! Keep the charger in a well ventilated, cool and open area. Do not block the ventholes on the sides or the discharge openings of the cooling fan. In case the fan fails or if thecooling is not adequate due to higher ambient temperature, inadequate air circulation or blockageof air ventilation openings, the thermal sensor for over-temperature protection will shut downthe output voltage of the charger. The Charging Indication LED (4) on the front panel will turnred (On the Remote Panel (15), the red LED “I Phase” will light, the green LED “Power” will,however, remain lighted). The charger will be latched in this shut down condition and will NOTreset automatically even after the unit has cooled down. To reset, the AC input power on / off(9) switch at the back of the unit has to be switched off and on again.PROTECTION AGAINST TRANSIENTS / SURGES IN THE AC INPUTIn a number of locations, the AC line input is not clean and may contain high voltagetransients / surges. To prevent damage to the internal components against these unwantedhigh voltages, the charger uses a MOV (Metal Oxide Varistor) for protection. If surge /transient voltage higher than approximately 170 VAC (for 120 VAC input) or 270 VAC (for230 VAC input) appear in the AC input, the MOV will conduct and will blow the AC sidefuse.Page 15