4.5 Regenerative Resistor Selection
51
■ For Digital Torque Amplifiers of 500W Capacity or More
Open terminals B2-B3 on the digital torque amplifier (remove the wire), and connect the
regen resistor between terminals B1-B2.
The regen resistor reaches high temperatures. Use wires with high-temperature insulation,
and make sure the wires do not come into contact with the regen resistor.
When an external resistor is connected, turn OFF #5 of SW1. Be sure the energy
capacity of the resistor is adequate to dissipate the regen energy of the load.
■ Calculating Regen Energy
For the procedure to calculate regen resistor capacity, please refer to Chapter 5 of the
Sigma II Series Servo System User’s Manual (Doc.# YEA-SIA-S800-32.2x).
Amplifier
B1
B2
Regen Resistor
Be sure to remove the lead wire
between B2-B3.
B3
* The regen reistor is supplied
by the customer
Important
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