1600/2000/2500 SCANNER
7 - 6
December 2000 © TOSHIBA TEC
7.4 Scanner Motor Drive Circuit
The drive circuit is mainly comprised of the following:
•
Scanner MPU(IC1)
•
Motor control IC (IC4)
•
Motor driver (IC9)
•
Current detection resistors (R9 to R12)
IC1
Scanner MPU
IC4
Motor
control IC
IC9
Motor driver
Scanner motor
A
/A
B
/B
+24V
CN7
BPWM
R16
R15
R14
SG
PG
SG
SG
R13
C14
C15
CPUA0~19
Scanner control PWA
CPUD0~15
61
BENB
71
BDTB
69
BDTA
68
BSTB
60
BCKO
67
17
6
2,13
5,16
SA
1
1
2,5
S/A
8
3
SB
11
4
S/B
18
R11,R12
9
R9,R10
10
6
+5V
2
4
3
Q1
3
14
08-04-01
- Process of Excitation -
IC4 turns the BENB signal to the HIGH level to turn off Q1.
IC4 sends the BPWM signal (current value setting signal) to IC9.
IC4 sends BCKO (Clock Signal), BDTA/BDTB (Serial Data Signal A/B), and BSTB (Strobe Signal)
to IC9 based on the register settings (rotational direction (CW/CCW), excitation method (2-/1-2-/
W1-2-/2W1-2-Phase), and clock (double-edge/single-edge)).
IC9 allows current to flow through each phase of the motor (A, /A, B, /B) based on the timing of
BCKO, BDTA, BDTB, and BSTB, thereby driving the motor.
The current flowing through the motor flows from R9 to R12 to generate voltage. This voltage is
compared with the voltage set by the BPWM signal in IC9 and the current to flow through the motor
is controlled based on its result.
Содержание DP1600
Страница 1: ...DIGITALPLAINPAPERCOPIER DP1600 2000 2500 File No 31100011 R0111216600 TTEC ...
Страница 2: ...Copyright 2000 TOSHIBA TEC CORPORATION ...
Страница 21: ...1600 2000 2500 OUTLINE OF THE MACHINE 2 8 December 2000 TOSHIBA TEC B 2 Switches SW2 SW1 02 02 04 ...
Страница 23: ...1600 2000 2500 OUTLINE OF THE MACHINE 2 10 December 2000 TOSHIBA TEC C 1 Motors M1 M3 M5 M7 M6 M4 M2 02 02 06 ...
Страница 145: ...8 PRINTING 8 1 8 1 General Description 8 1 8 2 Structure 8 2 8 3 Laser Diode 8 6 8 4 Disassembly and Replacement 8 7 ...
Страница 231: ...December 2000 TOSHIBA TEC 16 1 1600 2000 2500 PC BOARD 16 BOARD ASSEMBLY 16 1 PWA F MAN 16 01 01 ...
Страница 232: ...1600 2000 2500 PCB BOARD 16 2 December 2000 TOSHIBA TEC 16 2 PWA F RLY 16 02 01 ...
Страница 233: ...December 2000 TOSHIBA TEC 16 3 1600 2000 2500 PC BOARD 16 3 PWA F PIF 16 03 01 ...
Страница 234: ...1600 2000 2500 PCB BOARD 16 4 December 2000 TOSHIBA TEC 16 4 PWA F PNL 16 5 PWA F VR 16 04 01 16 05 01 ...
Страница 236: ...1600 2000 2500 PCB BOARD 16 6 December 2000 TOSHIBA TEC 16 7 PWA F FUS ASD AUD CND TWD SAD models 16 07 01 ...
Страница 237: ...17 WIRE HARNESS CONNECTION DIAGRAMS 17 1 ...
Страница 264: ...1 1 KANDA NISHIKI CHO CHIYODA KU TOKYO 101 8842 JAPAN ...