Pin
No.
Mark
I/O
Division
Function
18
SPUIN
I
SPIN detection comparator
(U-phase) input terminal
19
SPVIN
I
SPIN detection comparator
(V-phase) input terminal
20
SPWIN
I
SPIN detection comparator
(W-phase) input terminal
21
SPCOM
I
SPIN motor coil neutral
point input terminal
22
RIB
I
Soft switching gain control
resistor terminal
23
CST
I
Startup oscillation
capacitor terminal
24
CSL1
I
Slope capacitor connection
terminal 1
25
CSL2
I
Slope capacitor connection
terminal 2
26
FG
O
FG output terminal
27
BRK+
I
Brake comparator (+) input
terminal
28
BRK-
I
Brake comparator (-) input
terminal
29
ASGND
—
Small signal block GND
(Bip.)
30
SGND
—
Small signal block GND
(MOS)
31
S1
I
Stepping decorder 1 input
terminal
32
S2
I
Stepping decorder 2 input
terminal
33
S3
I
Stepping decorder 3 input
terminal
34
BEMFU
O
Step detect comparator (U)
output terminal
35
BEMFV
O
Step detect comparator (V)
output terminal
36
BEMFW
O
Step detect comparator (W)
output terminal
37
SLCOM
I
Step motor coil center
input terminal
38
SLPG2
—
Stepping power unit’s GND
2
39 SLWOUT
O
Stepping motor (W) output
terminal
54
Summary of Contents for SJ-MJ88
Page 6: ...Fig 1 Fig 2 4 2 Grounding for electrostatic breakdown prevention 1 Human body grounding 6 ...
Page 9: ...9 ...
Page 10: ... Check the P C B as shown below 10 ...
Page 12: ...12 ...
Page 13: ...13 ...
Page 14: ...14 ...
Page 16: ...5 4 Replacement for the traverse motor Follow the Step 1 Step 3 of item 5 1 16 ...
Page 17: ...17 ...
Page 18: ...18 ...
Page 19: ...19 ...
Page 21: ...21 ...
Page 22: ...22 ...
Page 23: ...23 ...
Page 24: ...24 ...
Page 30: ...Fig 9 30 ...
Page 34: ...34 ...
Page 35: ...35 ...
Page 36: ...36 ...
Page 37: ...37 ...
Page 38: ...38 ...
Page 39: ...39 ...
Page 40: ...40 ...
Page 41: ...8 Schematic Diagram Notes 8 1 Type Illustration of IC s Transistors and Diodes 41 ...