About the 3RA2001
3RA2001 is manufactured by Reliance Electric as a part of their series of HR2000 controllers. This controller is the first in the series. The stall torque is 4.0 lb-in. The speed is 4000 rpm. The friction is 0.25 lb-in. The damping is 0.12 lb-in/kpm. The thermal resistance is 1.45°C/watt. The motor weight is 5 lbs. The motor frame is S-2005.
The drive controller can be identified by the model number. “3RA” indicates that the part is an HR2000 High Performance Controller. The next number, “2”, indicates that the input voltage is 208/230 VAC. The next zero is a placeholder. The last two numbers indicated the controller’s horsepower, wherein, for example, “08” equals 7.5 HP.
When the RUN LED is green, the controller is operating. When the RDY LED is green, the controller is ready to run. The controller is UL listed to UL508 standards. The controller allows for electronic reversing from any speed and restart from any speed and direction. Optional features include the Input Disconnect Kit, the Encoder Isolation/Buffer Kit, the Encoder Tester, the Exercise Module, the D-C Snubber resistors, the Speed and Load Meters, the Common bus, and cables for motor-mounted encoders and controller connectors to terminal boards. Connector 2CN requires a 12 to 24 VDC power supply that must be supplied by the user. A 12 VDC, 5 mA maximum loading speed pot must also be supplied by the user. Do not operate the controller without professional qualifications.
