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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8 Operation8.3.4 Setting for Holding Brakes8.3.4 Setting for Holding BrakesThe holding brake is used when a SERVOPACK controls a vertical axis. In other words, a servomotor withbrake prevents the movable part from shifting due to gravity when the SERVOPACK power goes OFF. (Refer to8.1.4 Servomotor with Brakes.)•Vertical ShaftServomotorHolding brake•Shaft with External Force AppliedExternalforceServomotorPrevents the servomotorfrom shifting whenthe power is OFF.Prevents the servomotor fromshifting due to external force.IMPORTANT1. The brake built into the servomotor with brakes is a deenergization brake, which is used only to hold andcannot be used for braking. Use the holding brake only to hold a stopped motor. Brake torque is at least120% of the rated motor torque.2. When operating using only a speed loop, turn OFF the servo and set the input reference to 0 V when thebrake is applied.3. When forming a position loop, do not use a mechanical brake while the servomotor is stopped becausethe servomotor enters servolock status.(1) Wiring ExampleUse the SERVOPACK contact output signal /BK and the brake power supply to form a brake ON/OFF circuit.The following diagram shows a standard wiring example.SERVOPACKServomotorwith brakeRSTPower supply+24VBK-RYBK-RY(/BK+)(/BK-)L1L2L3L1CL2CCN1∗1∗2UVWCN2Blue or Brake power supplyyellowWhite AC DCRedBlackSurge suppressorCR50500BL(manufactured byOkaya ElectricIndustries Co., Ltd.)MPGBKBK-R Y: Brake control relayBrake power supply Input voltage 200-V models: LPSE-2H01Input voltage 100-V models: LPDE-1H01∗ 1 and ∗ 2 are the output terminals allocated with Pn50F.2.8-22

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