9
March 2005 © TOSHIBA TEC e-STUDIO520/600/720/850 PAPER FEEDING SYSTEM
9 - 17
9.6 Transport motor control circuit
The transport motor is a stepping motor driven by the control signal output from the PFC CPU on the
LGC board and rotates the intermediate transport roller.
The transport motor is driven by the pulse signal (MTMA-0, MTMB-0, MTMAB-0, MTMBB-0) output
from the motor driver. These pulse signals are formed based on the reference clock signal (MTMCK-0),
and output only when the enable signal (MTMEN-0) is L level. Also, the rotation speed of the motor can
be switched by changing the output timing of each pulse signal.
Fig.9-9
Transport motor drive signal
Signal
Motor status
MTMCK-0 MTMEN-0 MTMRF-0
Pulse signal L L Rotation when accelerating/
decelerating
L H Rotation at a constant speed
- H - Stop
MOT2-MT board
IC57
PFC CPU
MTMCK-0
Transport motor
MTMEN-0
MTMRF-0
MTMB-0
MTMA-0
MTMBB-0
MTMAB-0
Q62
IC1
Motor driver
LGC board
+5VSW
SG
IC39
Buffer
To Next Page
Loading...
