Citizen Systems CBM-820 Manual de usuario descargar pdf (Pagina 46)

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7.2 Drive circuit

The recommended drive unit is shown below.

Notes

• Peripheral Units 1 and 2 cannot be driven simultaneously.

• For continuous driving, do not use drive duty greater than 20%.

• Compulsion switch status is available as status data.

• Minimum resistance for coils L1 and L2 is 24Ω.

• Absolute maximum ratings for diodes D1 and D2 (Ta = 25°C) are:

Average Rectiﬁed Current Io = 1A

Maximum forward surge current (60Hz, 1-cycle sine wave) I

FSM

= 40A

• Absolute maximum rating for transistors TR1 and TR2 (Ta = 25°C) are:

Collector current Ic = 2A

Collector loss Pc = 1.2W

7824

F.G

TR1

M-GND

TR2

M-GND

TR3

+5V

+24V

4.7kΩ

1/4W

Frame

ground

Printer side User side

Peripheral

unit 1

With shield

Peripheral

unit 2

Compulsion

switch

Drive output: 24V, 1.0A max.

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Citizen Systems CBM-820 Manual de usuario Pagina 46