B&B Electronics SPECTRE Manual de usuario descargar pdf (Pagina 30)

B&B Electronics, Inc. SPECTRE User Manual

SPECTRE_User_Manual_2912m

www.bb-elec.com

www.bb-europe.com

4.7.3.5 Selecting the Binary Input Current

The input threshold for detecting a logic 1 can be set at either 8uA or 20mA using a jumper

on the module board. When jumper J4 is shorted, the threshold current level is 20 mA.

When jumper J4 is not shorted, the threshold current level is 8μA. A threshold current value

of 20mA has a higher resistance to noise on the input but also dissipates more power.

Fig. 29: CNT I/O board

Jumper J4

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B&B Electronics SPECTRE Manual de usuario Pagina 30