Toshiba 4560, Руководство по обслуживанию

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Nov. 1997 © TOSHIBA 6 - 7 4560/4570 DRIVE
Note: Main motor and transport motor control signals
6.4.2 Control signals
(1) CW/CCW signal (LGC MOT: Input)
Switches the rotation direction of motor.
When this signal becomes “L” level, the main motor rotates counterclockwise as viewed from the
rear side, and drives the developer unit, drum, heat roller, etc.
When this signal is “H” level, the transport motor rotates clockwise as viewed from the rear side,
and drives the transport-roller.
(2) PLL-OK signal (MOT LGC: Output)
When the cycle of FG pulse deviation from the reference frequency is within fixed range, this state
is specified as lock range (normal rotation), and this PLL-OK signal becomes “L” level. Also, at this
time, the LED “ED1” light comes ON.
(3) F-MOT-REF signal (LGC MOT: Input)
This signal is a reference clock signal for the motor to rotate at a fixed speed.
(4) MOT-FG signal
Generates the FG signal during motor rotation
(5) MOT-BRK signal (LGC MOT: Input)
When it becomes “L” level, the motor rotation is broken down.
(6) MOT-ON signal (LGC MOT: Input)
This signal is motor ON/OFF control signal.
When it becomes “L” level, the main motor rotates.
When it becomes “H” level, the transport motor rotates.
Signal level of motor circuit
Signal names and connector
J43 J549 “H” level “L” level
Main motor Transport motor
MAIN-CW/CCW FEED-CW/CCW CW direction CCW direction
PLL-OK Defective control Normal
F-MOT-REF Reference clock
MOT-FG Rotation pulse signal
MOT-BRK Brake OFF Brake ON
MAINMOT-ON FEEDMTR-ON
Main motor OFF Main motor ON
Transport motor ON Transport motor OFF
Main motor Transport motor
Signal
M1 M16
Control signal
MAIN-CW/CCW FEED-CW/CCW
CW/CCW
MOT-ON signal MAIN MOT-ON FEED MTR-ON
* The signal names indicate a level in the connector J43, respectively.