
DLQ-3000+
Rev. A
2-22
2.3.5 PF (Paper Feed) Motor Controller/Driver Circuit
Since this printer uses a hybrid-type stepping motor for the PF motor, it allows the paper to
move to and stop at any position, regardless of the direction for feeding paper. The motor is
driven by 1-2 phase with the open-loop system. Signals for 4 phases (PFA, /PFA, PFB and
/PFB) are output from the gate array E05B46 (IC25) driven by the motor drive IC SLA7024M
(IC6). To hold the motor, 2-2 phase is driven by the hold signal (PFIO) output from the same
gate array. See Table 2-12 which specifies the PF motor terms.
Table 2-12. PF Motor Drive Term
Motor type
4 phases / 200-pole / HB-type stepping motor
Power supply voltage
35 VDC
±
10%
Coil resistance
5.0
Ω
±
10%
Drive frequency
1430
−
7200 pps
Driving mode
Constant current uni-polar drive
Excitation mode
1-2 phase/2-2 phase (RUSH/HOLD)
Paper feed speed
42 m second (6 IPS intermittent drive)
Minimum step
0.07 mm (1/360”)/step
Consumption current
(mA/motor)
6 IPS (1-2 phase):
1.3 A/phase
HOLD (2-2 phase):
0.35 A/phase
PFIO
PF A
PF B
INA
IN-A
INB
IN-B
PF A
PF_A
PF B
PF_B
PF COM
A
_A
B
_B
VPB(+35V)
VSA
VSB
GP
+
GP
+5V
GP
PFA
PFB
RSB
RSA
GND A
GND B
+5V
/TDA
/TDB
PF_A
PF_B
VPB(+35V)
Gate Array
Motor Drive IC
E05B46
SLA7024M(IC6)
Figure 2-16. PF Motor Drive Circuit Block Diagram
Содержание DLQ-3000 Minerva+
Страница 1: ...EPSON 24 PIN DOT MATRIX PRINTER EPSON DLQ 3000 SERVICE MANUAL SEIKO EPSON CORPORATION 4008259 ...
Страница 5: ...v REVISION SHEET Revision Issued Data Contents Rev A August 21 1997 First Release ...
Страница 61: ...2 3 12 Other Sensor Circuits 2 31 ...
Страница 160: ...Chapter 6 Maintenance 6 1 Maintenance 6 1 6 1 1 Lubrication and Adhesion 6 1 ...
Страница 171: ...DLQ 3000 Rev A A 6 ...
Страница 172: ...Appendix Rev A A 7 A 2 Circuit Diagrams Figure A 2 C210 MAIN Board Circuit Diagram 1 2 ...
Страница 173: ...DLQ 3000 Rev A A 8 ...
Страница 174: ...Appendix Rev A A 9 Figure A 3 C210 MAIN Board Circuit Diagram 2 2 ...
Страница 175: ...DLQ 3000 Rev A A 10 ...
Страница 177: ...DLQ 3000 Rev A A 12 Figure A 5 C124 PSB Board Circuit Diagram ...
Страница 179: ...DLQ 3000 Rev A A 14 A 3 Circuit Board Component Layout Figure A 7 C210 MAIN Board Component Layout 1 2 ...
Страница 180: ...Appendix Rev A A 15 Figure A 8 C210 MAIN Board Component Layout 2 2 ...
Страница 181: ...DLQ 3000 Rev A A 16 Figure A 9 C124 PSB Board Component Layout ...
Страница 182: ...Appendix Rev A A 17 Figure A 10 C124 PSE Board Component Layout ...
Страница 189: ...EPSON SEIKO EPSON CORPORATION ...