Mcu Pcb; Drive Assy - Star Micronics LS-5 SERIES Technical Manual

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5-2-5. MCU PCB

Drive Assy

MCU PCB
PL 6.4
*1: Description of drive assy's main motor
• The main motor is a stepping motor.
• Excitation sequence of the main motor
Phase
1
A
B
A –
B –
• Step angle: 7.5 ±0.75°
• Frequency when the main motor is rotating at constant speed: 323 pps (pps: pulse per second)
P/J14
⊃
– 1
⊃
–
2
⊃
–
3
⊃
–
4
⊃
–
5
⊃
–
6
Step (two-phase excitation)
2 3
–
– –
–
24VDC
24VDC
A
B
/A
/B
4
–
–
–: Excitation
– 71 –
MAINTENANCE GUIDE
DRIVE ASSY
PL 5.5
MAIN MOTOR