User`s manual

BD2-3880/3890 User’s Manual
7
CAUTION:
1. For LED of ERROR and PE, there is a resister of 330 Ω on the circuit side to make the
current value 10 mA. Please use LED with a forward voltage of approx. 2V. LED exceeding
10 mA may break a control board.
2. Power supply for circuit (VDD and GND) requires feeding to only one pin. However, power
supply for driver circuit (VP and P-GND) requires feeding to all pins to secure the capacity.
3. Serial interface equips a driver and receiver of RS-232C, make sure to use it at RS-232C
level.
4. RESET terminal is pulled up by 47 KΩ. Make sure to make this terminal NC, when this
terminal is not used.
5. LF-SW input circuit is as below.
3.4 CN201 Connector for Paper Cutter (Option)
VDD
47K
1K
CPU
CN3
1000 pF
17 Pin
1
2
3
4
M+
M–
GND
SW
Output
Output
––
Input
Function
Cutter motor operational signal M +
Cutter motor operational signal M –
GND
Cutter switch input signal
Pin No. Signal Name I/O
A
pp
licable Connector: 5267- 04A-X (Molex)
CAUTION: Use the specified Paper Cutter (Model Name: ACS-230-5V).