Rice-lake Star SP298 Series Programmers Manual User Manual download pdf (Page 23)

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%.

• When using a serial interface, the compulsion switch status is available

as status data. When using a parallel interface, the compulsion switch

status can be worked out from the position of the number 34 pin of the

interface connector. The switch status is ON when the number 34 pin is at

LOW level.

• 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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Rice-lake Star SP298 Series Programmers Manual User Manual Page 23