RELIANCE 0-51893 Power module

This chapter describes only encoder cables and regenerative options for connecting HC/HA series servo motors to an MR-J4-_B_-RJ020 servo amplifier. For options for the servo amplifier, refer to chapter 11 and 14 of "MR-J4-(DU)_B_-RJ020 MR-J4-T20 Servo Amplifier Instruction Manual". For options for the HC/HA series servo motor, refer to "MR-J2S-_B Servo Amplifier Instruction Manual (SH(NA)030007)" and "Servo Motor Instruction Manual (SH(NA)3181)".

Regenerative loss of servo motor and drive unit 

The following table lists the efficiencies and other data of the servo motor and drive unit in the regenerative mode.Inverse efficiency (η): Efficiency including some efficiencies of the servo motor and servo amplifier when rated (regenerative) torque is generated at rated speed. Since the efficiency varies with the speed and generated torque, allow for about 10%. Capacitor charging (Ec): Energy charged into the electrolytic capacitor in the servo amplifier Subtract the capacitor charging from the result of multiplying the sum total of regenerative energies by the inverse efficiency to calculate the energy consumed by the regenerative option.

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