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Discrete inputs and outputs (auxiliary

I/O)

The CL-6 control provides the user with four discrete inputs

and four discrete outputs (Form C contacts); see Figures 7-6

and 7-7. The user can program the CL-6 control to use the

discrete input states, as well as other internal logic

conditions, to determine the operation of the control.

Likewise, the user can program the CL-6 control to toggle

the discrete output states based on internal control logic.

Note: If the CL-6 control is being applied in a CRA

application, the user may configure discrete inputs

#1 through #3. The fourth discrete input must be

reserved for use by the control.

EXAMPLE :

A utility noticed that the control function switch and

supervisory switch were being left in the incorrect positions

for their normal operation. The utility chose the User-

Defined LED to be the output of a PIO equation. They

used a standard equation with the logical OR operator.

Lastly, they chose inputs as the Supervisory Switch On

(Inverted) and the Control Status Switch Auto/Remote

(Inverted). Refer to Figure 7-5.

Supervisory On

Control Switch Auto/Remote

User LED On

Figure 7-5. Logic diagram for the I/O example.

Figure 7-6. Discrete input and output connector.

CL-6 SERIES CONTROL INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS MN225016EN January 2016

Eaton Cooper Power CL-6 Series User Manual

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