YASKAWA SGD7S-xxxDA0 series Product Manual

Contents

5.2 SERVOPACK Models with a Built-In Dynamic Brake5.2.2 Selecting the Dynamic Brake Resistor5-4Setting When Not Using Dynamic BrakingWhen not using dynamic braking, set Pn001 = n.X (Motor Stopping Method for ServoOFF and Group 1 Alarms) to 2.Setting When Using Dynamic BrakingWhen using dynamic braking, set Pn001 = n.X (Motor Stopping Method for Servo OFFand Group 1 Alarms) to 0 or 1.You must complete the following items to use the dynamic brake.• Selecting the Dynamic Brake Resistor5.2.2 Selecting the Dynamic Brake Resistor on page 5-4• Connecting the Dynamic Brake Resistor5.2.3 Connecting Dynamic Brake Resistors on page 5-7• Parameter Settings for the Dynamic Brake5.2.4 Setting the Energy Consumption and Resistance of the Dynamic Brake Resistor on page 5-9Note: When using the dynamic brake built into the SERVOPACK, you do not need to connect a Dynamic BrakeResistor.5.2.2 Selecting the Dynamic Brake ResistorThis section describes the selection of the Dynamic Brake Resistor.To select the Dynamic Brake Resistor, you must calculate the resistance and energy consump-tion for the specifications of the machine.ResistanceBased on the characteristic graphs of the Servomotor that will be used, you must determinethe resistance that can satisfy the limit of instantaneous maximum brake torque.Parameter Meaning When Enabled ClassificationPn001(2001h)n.0(default setting) Stop the motor by applying thedynamic brake.After restart Setupn.1 Stop the motor by the applyingdynamic brake and then release thedynamic brake.n.2 Coast the motor to a stop without thedynamic brake.WARNING Do not use dynamic braking for any application other than an emergency stop.There is a risk of failure due to rapid deterioration of elements in the SERVOPACK and the riskof unexpected operation, machine damage, burning, or injury. Use a Dynamic Brake Resistor matched to the specifications of the machine.There is a risk of unexpected operation, machine damage, burning, or injury. When using dynamic braking, implement suitable safety measures on the machine.There is a risk of unexpected operation, machine damage, burning, or injury. In situation where the motor will be rotated from the machine after it has been stopped, setthe SERVOPACK to coast to stop instead of using dynamic braking.There is a risk of burning in the equipment, damage to the machine, or injury.CAUTION Do not select a resistor with resistance less than the minimum allowable resistance.There is a risk of burning in the SERVOPACK or Servomotor, damage to the machine, or injury.