AutomationDirect SureServo2 Manual - Page 13
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Also for AutomationDirect SureServo2: Quick Start Manual (2 pages), Quick Start Manual (4 pages)
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Connect to one external
regenerative resistor
P3
C
Connect to external regenerative
resistors (serial connection)
P3
C
Connect to external regenerative
resistors (parallel connection )
P3
1 kW, 10Ω
C
• Normally, if the capacity of the regenerative resistor (the average value) is within the rated
capacity, the temperature of the resistor can increase to 120°C or even higher (under the
condition that the regenerative energy continues to be absorbed)� For safety reasons, please
use forced air cooling in order to reduce the temperature of the regenerative resistor�
Alternatively, you can use regenerative resistors that are equipped with thermal switches�
• When installing an external regenerative resistor, connect the external resistor to P3 and C
contacts� The P3 and D contacts are left open� It is recommended that you choose external
regenerative resistors of the resistance values specified above� For easy calculation of the
regenerative resistor capacity, there are two ways provided to calculate the capacity according
to the selected motor�
Rotary Motor:
Calculation of the regenerative power when there is no external torque, rotor inertia only
SureServo2 User Manual – 1st Edition – 05/20/2021
Settings:
P1.052 = 10 (Ω)
P1�053 = 1000 (W)
1 kW, 10Ω
Settings:
P1.052 = 20 (Ω)
1 kW, 10Ω
P1�053 = 2000 (W)
1 kW, 10Ω
Settings:
P1.052 = 5 (Ω)
P1�053 = 2000 (W)
1 kW, 10Ω
Chapter 2: Installation
Page 2–13