Epson LQ-2550 Technical Manual page 272

Pin
Terminal
No.
15
I
VPP
GND —
1 9
16 o
A C
C O M
18 o
3 AIN
I
12 BIN
4 I
DIN
13
5 AOUT o
9 BOUT o
7 COUT o
11 DOUT o
8 ZD"
o
17 E o
2 RAC I
14 RBD
2 0 RX I
6 DA I
10 I
1 Vcc I
Table A-1 3. S1-7304 Terminal Functions
+ 3 5
GH
CR motor coil A/C drive voltage
CR motor coil B/D drive voltage
CR motor coil A drive pulse
CR motor coil B drive pulse
CR motor coil C drive pulse
CR motor coil D drive pulse
CR motor coil A drive terminal
CR motor coil B drive terminal
CR motor coil C drive terminal
CR motor coil D drive terminal
CR motor surge voltage output terminal
HOLD/DRIVE switch
Coil A/C current detection resistor mounting terminal
Coil B/D current detection resistor mounting terminal
Constant current control reference voltage
Coil A/C surge voltage
Coil B/D surge voltage
+ 5 VDC
A-27
Description