Specifications

3-7
(2) Excitation Sequence
As shown in Table 3-4, the LTP1245 feeds paper in the normal direction when the motor is excited
in the order of step 1, step 2, step 3, step 4, step 1, step 2, . . . . On the other hand, to rotate the
motor in a reverse direction, drive the motor in the reverse order of: step 4, step 3, step 2, step 1,
step 4, step 3, . . . .
Table 3-4 Excitation Sequence
Signal Name Sequence
Step 1 Step 2 Step 3 Step 4
A Low High High Low
B High High Low Low
A High Low Low High
B Low Low High High
Figure 3-4 Input Voltage Signals for the Sample Drive Circuit (Motor)
H
L
H
L
H
L
H
L
A
B
A
B
1 DOT LINE