10.07.2015 Views

Sigma-II Series SGM*H/SGDH USER'S MANUAL - Esco Drives ...

Sigma-II Series SGM*H/SGDH USER'S MANUAL - Esco Drives ...

Sigma-II Series SGM*H/SGDH USER'S MANUAL - Esco Drives ...

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11.1 Servomotor Capacity Selection Examples(c) SERVOPACKs with Capacities of 6.0 kW or MoreSERVOPACKs with capacities of 6.0 kW or more do not have built-in regenerative resistors. The followingtable shows the allowable regenerative frequencies when the JUSP-RA04 or JUSP-RA05 regenerative resistoris used together with an applicable SERVOPACK.The servomotor driven conditions and the conversion equation of the allowable regenerative frequencies tothe rotation speed and load moment of inertia are the same as the (b) SERVOPACKs with Capacities of 500 Wto 5.0 kW.Voltage <strong>Series</strong> Allowable Frequencies in Regenerative Mode (times/min)Capacity 55 75 1A 1ESymbol200 V SGMGH-AA 26 36 36 32SGMGH-AB 44 − − −400 V SGMGH-D 26 18 36 32(2) Calculating the Regenerative EnergyThis section shows the procedure for calculating the regenerative resistor capacity when acceleration and decelerationoperation is as shown in the following diagram.N M : Motor rotation speedRotation speed0Motor torqueT L : Load torquet D0TRegenerativetorque1111-9

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