Emerson FXMP25 User's Guide download pdf (Page 60)

60 FXMP25 User Guide

www.controltechniques.com Issue Number: 3

9 Diagnostics

The display on the FXMP25 gives various information about the status of the field

controller. These fall into three categories:

• Trip indications

• Alarm indications

• Status indications

9.1 Trip indications

If the unit trips, the field output is disabled and the FXMP25 ceases to control the field.

The left hand display indicates that a trip has occurred, and the right hand display

shows the trip.

Trips are listed alphabetically in Table 9-1 based on the trip indication shown on the

FXMP25 display.

Example

The FXMP25 display shows an FdL trip on the display as shown in Figure 9-1 below:

Figure 9-1 Typical example of trip display

The above graphic shows the resultant display following an FdL trip. This indicates a

field loss condition as described in Table 9-1 on page 61 overleaf.

Users must not attempt to repair a faulty FXMP25 or carry out fault diagnosis other than

replace internal fuses or through the use of the diagnostic features described in this

chapter. Under no circumstances must the casing of the FXMP25 be opened when the

AC supply is connected. Faulty units must be returned to an authorized Control

Techniques distributor for repair.

WARNING

STORED CH ARGE

10 min

Mode /Reset

FXMP25

FXMP25 status

= tripped

Trip type

(FdL =Field loss)

1 2 ... 55 56 57 58 59 60 61 62 63 64 65 66

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Emerson FXMP25 User's Guide Page 60