Chapter 6: Configurable Settings

This section describes the proper setup of the 7/50D Plus or 7/50D control system parameters. These parameters are operator changeable; however, these items should require setup only during the initial installation. Only authorized personnel should change them.

Many of the variables and setup parameters have been preset at the factory and do not need to be changed. However, this section of the manual will address all of the setup parameters that were available at the time of printing. The purpose of this is to familiarize the reader with all the setup parameters and their usage.

6-1 Memory Module Considerations

The operator interface and the PLC central processing unit use memory modules to store the operating program. The modules are installed in the back of the controller interface chassis and on the PLC CPU card.

The memory module returns the controller to the factory default settings if an electrical fault occurs, or if the hardware is replaced. Keep in mind that this condition is extremely rare. You will then need to set up the controller once again with the settings you programmed in this chapter.

6-2 Options for Station Setup

Name

Description

Options

Default

Conveying Options

 

 

 

Convey time

Length of time the station’s vacuum valve

1–999 sec.

30 sec.

 

remains open to allow material to be drawn in.

 

 

 

(For a volume-fill station, the valve closes when

 

 

 

material covers the station’s volume-fill

 

 

 

proximity sensor or this time elapses, whichever

 

 

 

comes first.)

 

 

 

Adjust this value to match the actual time

 

 

 

needed to fill the station.

 

 

(Last convey time)

Display only. Length of time the station’s

 

 

 

vacuum valve was open for receiving material

 

 

 

during the most recent convey. This information

 

is displayed for your reference when adjusting

 

 

 

convey time and dump delay.

 

 

Dump delay

Length of time allowed for material to drain from

1–99 sec.

10 sec.

 

the station into the receiver. The controller will

 

 

 

not attempt to deliver more material to the

 

 

 

station until this time has elapsed.

 

 

 

Adjust this value to match the actual time

 

 

 

needed to drain the station. If it is set too short,

 

 

 

the controller may attempt to refill the station

 

 

 

before it is empty, causing material to back up

 

 

 

and/or underusing the station’s capacity. If it is

 

 

 

set too long, the system may be unable to keep

 

 

 

up with your equipment’s demand for material.

 

 

7/50D Plus or 7/50D Controller

Chapter 6: Configurable Settings

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Sterling Plumbing 882.00254.00 Configurable Settings, Memory Module Considerations, Options for Station Setup