Epson LQ 1050 Technical Manual - Page 211
Reference voltage for CR motor phases
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Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Signal Vcc 1 CAB S.out OA 1A IB OB Vref VCC2 Vss N.C Oc Ic ID OD C CD P.D. Rush Table A-14. STK6722H Terminal Function Direction Function In +35V DC power out CR motor phases A and B common out Surge voltage of CR motor coils out CR motor phase A drive In CR motor phase A drive pulse In CR motor phase B drive pulse out CR motor phase B drive In Reference voltage for CR motor phases In + 5V DC (internal circuit power) - GND - Not connected out CR motor phase C drive In CR motor phase C drive pulse In CR motor phase D drive pulse out CR motor phase D drive out CR motor phases C and D common In Power down - Fixed to low REV.-A
REV.-A
Table A-14. STK6722H Terminal Function
Pin No.
Signal
Direction
Function
1
Vcc
1
In
+35V
DC power
2
CAB
out
CR motor phases A and B common
3
S.out
out
Surge voltage of CR motor coils
4
OA
out
CR motor phase
A
drive
5
1A
In
CR motor phase A drive pulse
6
IB
In
CR motor phase B drive pulse
7
OB
out
CR motor phase B drive
8
Vref
In
Reference voltage for CR motor phases
9
VCC2
In
+ 5V DC (internal circuit power)
10
Vss
—
GND
11
N.C
—
Not connected
12
Oc
out
CR motor phase C drive
13
Ic
In
CR motor phase C drive pulse
14
ID
In
CR motor phase D drive pulse
15
OD
out
CR motor phase D drive
16
C CD
out
CR motor phases C and D common
17
P.D.
In
Power down
18
Rush
—
Fixed to low