Rockwell-automation 1771-QB Linear Pos. Manuel d'utilisateur télécharger pdf (Page 30)

Chapter

41

Hardware Description

This chapter describes the Linear Positioning Module hardware, as well as other

hardware required for a positioning system.

Figure 4.1 shows the three indicators on the module.

Figure 4.1

Indicators

50009

LINEAR

POSITIONING

FAULT

LOOP1

ACTIVE

LOOP2

ACTIVE

When you first power up the module, all three indicators turn on for about one

second. Next, the LOOP 1 ACTIVE and LOOP 2 ACTIVE indicators turn off

while the module performs diagnostics. If the diagnostics discover a module

fault, the red FAULT indicator stays on and the module remains inactive. When

the programmable controller is in run mode, the indicators behave as follows:

FAULT - a red indicator that is normally off. The indicator turns on if there

is a module fault in one loop or both loops. See Chapter 11 for more

information on module faults.

LOOP 1 ACTIVE - a green indicator that is on when loop 1 is active. The

indicator blinks if a fault occurs on loop 1 and turns off if loop 1 is inactive.

LOOP 2 ACTIVE - a green indicator that is on when loop 2 is active. The

indicator blinks if a fault occurs on loop 2 and turns off if loop 2 is inactive.

Indicators

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 225 226

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Rockwell-automation 1771-QB Linear Pos. Manuel d'utilisateur Page 30