Toshiba e-studio555 - Tray-Up Motor Control Circuit

e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved
PAPER FEEDING SYSTEM
8 - 12
8.4 Tray-up motor control circuit
The tray-up motor is a DC motor driven by the control signal output from the PFC CPU on the LGC
board and moves up the tray in each drawer.
The motor driver outputs the drive signal (PUTRM-0/1A, PLTRM-0/1A) to the motor based on the
control signal (PUTRM-0/1, PLTRM-0/1). The motor operates the forward rotation, reverse rotation,
brake or stop according to the status of these drive signals.
Fig. 8-7
Tray-up motor drive signal
Signal
Motor Status
PFC CPU output Motor driver output
PUTRM-0
PLTRM-0
PUTRM-1
PLTRM-1
PUTRM-0A
PLTRM-0A
PUTRM-1A
PLTRM-1A
L L OFF (high impedance) OFF
L H L H Forward rotation (CW)
H L H L Reverse rotation (CCW)
HHL LBrake
IC57
PFC CPU
PUTRM-0
Tray-up motor-1
PUTRM-1
PUTRM-0A
PUTRM-1A
IC72
Motor driver
LGC board
+24VD1
DG
PLTRM-0
Tray-up motor-2
PLTRM-1
PLTRM-0A
PLTRM-1A
IC36
Motor driver
+24VD1
DG