Intermec EasyCoder 501 - Stepper Motor Drives

Intermec EasyCoder 501 – Service Manual Ed. 7
138
Chapter 17 CPU Board
17.6:6 Stepper Motor Drives
P400
1
2
3
4
5
6
7
8
D400
AOUT
BOUT
EMITTER
VM
VM
GND
GND
GND
GND
PHASE
I1
I0
VR
TIMING
CURRENT
GND
D401
8
9
7
11
2
10
ST3–ENG1
ST1–ENG1
ST2–ENG1
+5V
IC400
PBL3770
GND
C401
R401 R402
R404
C400
15
1
16
14 V40
3 V40
13
12
5
4
D402
AOUT
BOUT
EMITTER
VM
VM
GND
GND
GND
GND
PHASE
I1
I0
VR
TIMING
CURRENT
GND
D403
8
9
7
11
2
10
ST6–ENG1
ST4–ENG1
ST5–ENG1
+5V
IC401
PBL3770
GND
C405
R405 R406
R408
C404
15
1
16
14 V40
3 V40
13
12
5
4
P401
1
2
3
4
5
6
7
8
D404
AOUT
BOUT
EMITTER
VM
VM
GND
GND
GND
GND
PHASE
I1
I0
VR
TIMING
CURRENT
GND
D405
8
9
7
11
2
10
ST3–ENG1
ST1–ENG1
ST2–ENG1
+5V
IC403
PBL3770
GND
C407
R411 R412
R414
C406
15
1
16
14 V40
3 V40
13
12
5
4
D406
AOUT
BOUT
EMITTER
VM
VM
GND
GND
GND
GND
PHASE
I1
I0
VR
TIMING
CURRENT
GND
D407
8
9
7
11
2
10
ST6–ENG1
ST4–ENG1
ST5–ENG1
+5V
IC405
PBL3770
GND
C409
R417 R418
R420
C408
15
1
16
14 V40
3 V40
13
12
5
4