3. STEPPER MOTOR
MT002
3-1
3.1 STEPPER MOTOR
The paper feed pitch for stepper motor is 2 steps for one dotline
(1)
.
(1)
Note: 1 dotline = 0.125 mm.
3.1.1 Technical specifications
Item
Specification
Drive voltage
DC 5.5 V
No. of phases
2
Drive mode
Bipolar drive
Step angle
18° ± 2°
Rated current
350 mA / Phase
Resistance
12
Ω
± 7% at 25 °C (each phase)
Inductance
3.7 mH ± 25% at 25°C (1kHz. 1Vrms )
Holding torque
33.7 gf-cm MIN
Pull-out torque (1200 pps)
13.3 gf-cm MIN
Insulation resistance
100 M
Ω
MIN (500 Vdc)
Insulation class
Class E
Dielectric strength
AC 500V 1 min.
Life
3000 Hr min.
Maximum coil temperature
115°C
3.1.2 Excitation sequence
The motor is driven in the forward direction if its excitation phases are switched as per the following steps :
e
c
n
e
u
q
e
S
l
a
n
g
i
S
B
2
H
P
B
1
H
P
A
1
H
P
A
2
H
P
1
p
e
t
S
h
g
i
H
w
o
L
w
o
L
h
g
i
H
2
p
e
t
S
h
g
i
H
w
o
L
h
g
i
H
w
o
L
3
p
e
t
S
w
o
L
h
g
i
H
h
g
i
H
w
o
L
4
p
e
t
S
w
o
L
h
g
i
H
w
o
L
h
g
i
H
(Tab.3.1)
(Tab.3.2)
Содержание MT002
Страница 1: ...MT002 www custom biz Thermal printing mechanism MT002 User s Manual ...
Страница 4: ...MT002 Blank page ...
Страница 16: ...2 PRINT HEAD MT002 2 6 Blank page ...
Страница 23: ...4 SENSOR MT002 5 4 Fig 4 7 Fig 4 8 Switching time vs Load resistance Relative light current vs Moving distance ...
Страница 24: ...4 SENSOR MT002 6 4 Blank Page ...
Страница 26: ...5 DIMENSIONS MT002 2 5 Blank page ...
