Exit Motor Control Circuit - Toshiba e-STUDIO520 Service Manual

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15.5 Exit motor control circuit

The exit motor is a stepping motor driven by the control signal output from the PFC CPU on the LGC

board and rotates the exit roller.

The PFC CPU outputs each phase signal (EXTMA-0, EXTMB-0, EXTMC-0, EXTMD-0) to the motor

driver. The motor driver converts this phase signal into a +24 V pulse signal (EXTMA-0A, EXTMB-0A,

EXTMC-0A, EXTMD-0A) and outputs it to the motor. Also, the rotation speed of the motor can be

switched by changing the output timing of each pulse signal.

Exit motor drive signal

Pulse signal

Motor driver

Motor status

Rotation when accelerating/decelerating

Rotation at a constant speed

e-STUDIO520/600/720/850 EXIT/REVERSE SECTION

E-studio600 E-studio720 E-studio850