Product Description

S7480A-NAF2-S3 is a S700 series digital servo amplifier. It is manufactured by Kollmorgen. The amplifier has a modular design. Three expansion card slots are available on the front of the unit. Operators can order pre-installed expansion cards or order cards separately and install them in the field. The amplifier unit comes with two pre-installed expansion cards. Slot 1 on the unit is vacant. Slot 2 on the unit is occupied by a fan control card. A safety card is installed in slot 3. The fan control card is used for applications that require reduction in amplifier noise emissions. Peak noise output of the S7480A-NAF2-S3 amplifier is 62 dB. The internal cooling fan is responsible for a majority of the noise emissions. The F2 fan control card either reduces the fan speed or turns it off.

Factors that determine fan operation are ambient temperature and heat sink temperature. The card turns off the fan when the heat sink temperature is less than 58 degrees Celsius, runs it at 50% speed when the heat sink temperature is near 68 degrees, and runs it at full speed when the heat sink temperature is more than 80 degrees. The card turns off the fan when the ambient temperature is less than 55 degrees Celsius, runs it at 50% speed when the ambient temperature is near 58 degrees, and runs it at full speed when the ambient temperature is more than 65 degrees. Input voltage range for the S7480A-NAF2-S3 unit is 208 to 480 Volts AC. The nominal output is 48 Amps and the peak output is 96 Amps. Weight of the unit is 10.4 kilograms and its housing belongs to IP20 protection category.