In PWM & Direction mode, the input PWM signal directly controls the output PWM power devices. Typically the PWM input duty cycle will control the drive’s output current level. Direct PWM uses only rudimentary current limiting, while Torque Mode PWM uses current feedback to close the current loop.
- Direct PWM gives the fastest possible response since there are no gain stages or integrators
- Torque Mode PWM utilizes a PWM-to-Analog converter to create a command into the current loop
ADVANCED Motion Controls' Capabilities
- Some brushed and brushless AxCent™ drives operate in PWM & Direction Mode