Product Description:

The S74802-PNF2-NA servo drive is manufactured by Kollmorgen as part of the S700 Servo Drives series. It functions as a closed-loop power stage that converts three-phase mains energy into precisely timed motor currents so that industrial axes follow commanded position, speed, or torque profiles without drift. In automated cells, the unit is typically paired with a motion controller over a real-time network, enabling coordinated moves for pick-and-place heads, feeders, or gantry carriages while maintaining strict safety and shutdown behavior.

The drive accepts a permissible input of 208 to 480 V three-phase AC, allowing direct connection to common plant distribution systems. Internally, it processes up to 35 kVA of apparent power and can deliver a continuous phase current of 48 Arms for medium-to-high inertia servomotors. A carrier switching frequency of 8 kHz helps reduce current ripple, which supports smoother torque at the motor shaft and lowers audible noise. Functional safety is rated to SIL3, PL e, allowing use on machines that require high safety performance. Two analog channels and four digital inputs support local speed trim, enable, or fault-reset commands, while a controlled-fan cooling circuit monitored by a plug-in fan-controller card removes switching losses so the electronics remain within rated temperature limits during the permitted 30 power cycles per hour.

The housing is 386 mm tall and 244 mm deep without the front connector, and its 190 mm width fits neatly into 400 mm deep enclosures alongside other S700 modules. Installed mass is 13 kg, which keeps mounting requirements manageable for standard cabinet structures. For stop functions, a Dual channel STO circuit disables the output stage in less than a millisecond, helping prevent unintended motion when emergency-stop or guard-switch circuits open.