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Parker Hannifin
Chapter 3 Electrical Installation 55
Internal Regeneration Capability
The internal regeneration resistor of the AR-20xE and AR-30xE is capable of
dissipating 1kW for 1 second and up to 100 Watts continuously (depending
upon heatsink temperature). If the calculated temperature of the internal
regeneration resistor exceeds 150°C (302°F), the drive turns off the
regeneration circuit and may experience an over-voltage fault.
Similarly, models AR-01xx through AR-13xx may experience an over-voltage
fault if the regeneration exceeds the absorbent capacity of the drive’s internal
bus capacitors, as shown in Table 21.
Regeneration Absorption
The available absorption varies based on mains voltage and the drive’s
internal capacitance. The drives can absorb the following amounts of
regenerated energy in their internal capacitors:
Drive Absorb (Joules)
120 VAC
Absorb (Joules)
240 VAC
AR-01xx 28 9
AR-02xx 43 14
AR-04xx 57 19
AR-08xx 72 24
AR-13xx 104 35
AR-20xE N/A 50
AR-30xE N/A 50
Table 21 Regeneration Absorption
For more specifications about energy absorption by the Aries drive’s
capacitors, see Table 58.
For mo
re information about selecting an external power-dump resistor, see
“Appendix B External Power-Dump Resistor Selection”.