Star Micronics WinType 4000 Technical Manual page 102

MAINTENANCE GUIDE
§4. [MCU PWB ↔ Main Motor]
MCU PWB
PL 5.1
–
–
–
–
–
–
*1: Description of the Main Motor
• The main motor is a stepping motor.
• The excitation sequence for the main motor
Phase
A
B
/A
/B
• Step Angle : 7.5 ± 0.75°
• Frequency when the main motor is rotating at a constant speed: 270 pps
Note: The units for the above frequency, pps (pulses per second), indicates the number of pulses in one
second.
P/J14
24VDC
⊃
1
24VDC
⊃
2
⊃
3
⊃
4
/A
⊃
5
/B
⊃
6
Step (Two-Phase Excitation)
1 2
–
– –
–
– 98 –
MAIN MOTOR
PL 2.14
MAIN MOTOR
A
B
3 4
– –
–
–
–: Excitation