About the B90H1045
Reliance Electric manufactures B90H1045, an enclosed motor that is part of the HR2000 drive series. The horsepower is 4, the continuous torque rating is 125 in-lbs, the base speed is 2000 rpm, and the inertia is 0.041 lb. in s^2. The associated chassis controller is 3RA2004. The flange mounting is an FF200 IEC flange. This motor is enclosed in a TENV enclosure.
The NEMA motor features a thermally isolated 2500 PPR optical encoder, a NEMA C-face with feet mounting, a TENV construction with 1-4 HP, a TEAO-BC enclosure with 7.5-15 HP, winding thermostats, and a mating MS encoder connector. Options available for the NEMA motor include washdown duty enclosures, Class I Group D explosion-proof enclosures (1-4 HP), and brake motors with 115 or 230 V coils. The motor also features a six-pole design, class F insulation, and rare earth magnets.
The user must perform regular maintenance on the motor by keeping the exterior dry and free of dust, grease, oil, and dirt. Tighten all nuts, bolts, assembly screws, and terminal connections. Periodically check the insulation resistance to keep the temperature and humidity conditions constant. If the motor requires troubleshooting, first check that the motor bearings are in normal condition. Check for mechanical misadjustment, binding loose nuts and bolts, or excessive overload. Also ensure that the motor is properly installed and wired to the controller. Check that protective devices are in proper working order. If all aforementioned tasks are carried out and the motor still requires troubleshooting, disassemble and reassemble the motor. Remember that realignment of the encoder in its housing is required for reassembly of the motor.
