Yokogawa EJA115 Manual do Utilizador descarregar pdf (Página 32)

IM 01C22T03-00E

7-1

7. IN-PROCESS OPERATION

This chapter describes the in-process operation of the

EJA

7.1 Mode Transition

When each block mode is changed to Out of Service

(O/S), the block pauses and a block alarm is issued.

When the AI block mode is changed to MAN, the AI

block suspends updating of output values. In this case

alone, it is possible to write a value and status to the

OUT parameter of the block for output.

7.2 Generation of Alarms

7.2.1 Indication of Alarms

When the self-diagnostics function detects a fault in the

EJA, diagnostic information and an error indication are

displayed by using parameter Diagnosis and Diagnosis

Extension in the physical block. If an LCD indicator is

installed, the error number is displayed as AL.XX. If

two or more alarms are issued, the error numbers are

displayed in a repeating sequence.

F0701.EPS

Figure 7.1 Error Indication

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 46 47

Sem comentários

Yokogawa EJA115 Manual do Utilizador Página 32