Baldor 23H Series Installation & Operating Manual page 132

Application Notes
Example
An application requires a continuous torque of 30 lb-in at a speed of 3750 RPM. The peak torque
required for acceleration is 80 lb-in.
The curve shows a motor which will work in this application. The bus voltage required is 300 VDC.
The continuous and peak currents required are 7 and 18 amps.
A control is selected which can deliver this amount of current or more. The literature would
indicate the closest control would deliver 10 amps continuous and 20 amps peak with a 230 VAC
input (300 VDC bus).
Data Tables
The motor's voltage constant (back-emf) and torque constant are "cold" values (25°C); the continu-
ous stall torque and current are "hot" values (155°C). The temperature coefficient factor between
"cold" and "hot" is 0.95 for rare earth motors, and 0.85 for ferrite.
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