Product Description:

The S77202-PBF2-NA is a servo drive manufactured by Kollmorgen and delivered within the S700 Servo Drives series. The unit is intended to control feedback-equipped motors used in packaging lines, printing presses, and general automation. By modulating phase voltage and current, it produces closed-loop motor control that follows the motion profile sent by the central controller and converts low-level control words into three-phase power for precision industrial axes.

Its input section accepts three-phase mains from 208 to 480 V and draws a continuous armature current of 72 Arms, while the inverter can supply up to 140 Arms during rapid acceleration events. The rated apparent power is 50 kVA, so the drive must be paired with supply components that can sustain that load. During operation, it dissipates 1005 W of heat at 400 V, so enclosure ventilation is required. Minimum motor inductance at 480 V is 0.61 mH, which helps the current controller remain stable when driving low-reactance windings. A voltage rise rate of 4.8 kV/µs across the output stages indicates the switching speed used by the IGBTs, which must be matched by suitable motor insulation.

Functional safety is supported through dual-channel STO, which eliminates motor torque when both channels are de-energized. The housing has an IP20 protection level, so the drive is intended for cabinet installation, and field communication is handled through two 9-pin Sub-D ports operating at 12 MBaud on PROFIBUS with Profidrive PPO type 2 telegrams. An integrated fan controller card activates cooling fans once the ambient temperature reaches 65 °C. The control electronics draw 2 A from the 24 V supply, digital inputs sink 15 mA, and transistor outputs source 100 mA with a residual drop of 6 V. The assembly uses standard PCBs and produces up to 68 dB(A) of noise during operation.