LSCOM

Additional Limit

Switches(Dependent on

Number of Axes)

FLSA

RLSA HOMEA FLSB RLSB HOMEB

INCO

M

IN1

IN2

IN3

IN4

IN5

IN6

IN7

IN8

ABOR

T

(ALATCH)

(BLATCH)

(CLATCH)

(DLATCH)

 

 

 

 

 

 

 

 

 

Figure 3-1. The Optoisolated Inputs.

NOTE: Controllers with 5 or more axes have IN[9] through IN[16] also connected to INCOM.

Using an Isolated Power Supply

To take full advantage of opto-isolation, an isolated power supply should be connected to the input common. When using an isolated power supply, do not connect the ground of the isolated power to the ground of the controller. A power supply in the voltage range between 5 to 24 volts may be applied directly (see Figure 3-2). For voltages greater than 24 volts, a resistor, R, is needed in series with the input such that

1 mA < V supply/(R + 2.2KΩ) < 11 mA

42 Chapter 3 Connecting Hardware

DMC-2X00

Page 52
Image 52
Galil DMC-2X00 user manual Using an Isolated Power Supply, Optoisolated Inputs