Citizen Systems PPU-700 Benutzerhandbuch

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1

Vcc

—

Power supply for circuit (+5V)

2

LF_SW

Input

LF switch input (paper feeding)

3

GND

—

GND for circuit

4

POWER_LED

Output

POWER_LED output

5

ERROR_LED

Output

ERROR_LED output

Connector used: 53014-0510 (Molex)

● POWER LED and ERROR LED are provided with a resister of 47Ω at the circuit side.

When using LED, connect the resister to conform to the rating of the LED.  (Saturation
voltage across collector and emitter of transistor V

CE(sat)

= 0.25V (max.))

● LF_SW input terminal has the above circuit configuration.  A ceramic capacitor is

provided at the circuit side to prevent chattering.  Note that chattering may be large
depending on the switch.

47

Ω

47

Ω

1 K

Ω

3.3 K

Ω

Vcc 

1000

µF

LF_SW

GND 

1 

2 

3 

4 

5 

CN500

Vcc (+5V)

POWER_LED

ERROR_LED

Control Board