Selecting The Dynamic Brake Resistor - YASKAWA SGD7S-xxxDA0 series Product Manual

5.2 SERVOPACK Models with a Built-In Dynamic Brake

5.2.2 Selecting the Dynamic Brake Resistor

Setting When Not Using Dynamic Braking
When not using dynamic braking, set Pn001 = n.
OFF and Group 1 Alarms) to 2.
Pn001
(2001h)
Setting When Using Dynamic Braking
When using dynamic braking, set Pn001 = n.X (Motor Stopping Method for Servo OFF
and Group 1 Alarms) to 0 or 1.
You must complete the following items to use the dynamic brake.

• Selecting the Dynamic Brake Resistor

5.2.2 Selecting the Dynamic Brake Resistor on page 5-4
• Connecting the Dynamic Brake Resistor
5.2.3 Connecting Dynamic Brake Resistors on page 5-7
• Parameter Settings for the Dynamic Brake
5.2.4 Setting the Energy Consumption and Resistance of the Dynamic Brake Resistor on page 5-9
Note: When using the dynamic brake built into the SERVOPACK, you do not need to connect a Dynamic Brake
Resistor.
5.2.2 Selecting the Dynamic Brake Resistor
This 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.
Resistance
Based on the characteristic graphs of the Servomotor that will be used, you must determine
the resistance that can satisfy the limit of instantaneous maximum brake torque.
5-4
Parameter
n.0 Stop the motor by applying the
(default setting) dynamic brake.
Stop the motor by the applying
n.1 dynamic brake and then release the
dynamic brake.
Coast the motor to a stop without the
n.2
dynamic brake.
 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 risk
of 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, set
the 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.
 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.

X (Motor Stopping Method for Servo
Meaning When Enabled
WARNING
CAUTION
Classification
After restart Setup