Yokogawa EJX115A User Manual

Page 40

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<7. Errors and Countermeasures>

38

IM 01C25A01-01E

Table 7.2

Alarm Message Summary (For EJX910A and EJX930A, HART protocol type)

Integral

indicator

Cause

4-20mA Output

operation during error

Countermeasure

AL. 01

CAP.ERR

Sensor problem.

Outputs the signal (High or Low) set

with burnout direction switch.

[status output: undefined]

Replace capsule if the error recurs

after the transmitter is restarted.

Capsule temperature sensor problem.

Replace capsule.

Capsule EEPROM problem.

AL. 02

AMP.ERR

Amplifier temperature sensor problem.

Replace amplifier.

Amplifier EEPROM problem.
Amplifier problem.
A/D Converter problem.

AL. 03

ET.ERR

External temperature sensor

disconnection.

Check external temperature sensor.

No device ID is found.

Continues to operate and output.

Replace amplifier.

AL. 10

PRESS

Differential pressure is outside

measurement range limit of capsule.

When PV is Pres

Output AO upper limit or AO Lower

limit.

Check input or replace capsule when

necessary.

AL. 11

ST. PRSS

Static pressure exceeds limit.

When PV is SP

Output AO upper limit or AO Lower

limit.

AL. 12

CAP.TMP

Capsule temperature is outside range

(–50 to 130°C).

Continues to operate and output.

Use heat insulation or make lagging

to keep temperature within range.

AL. 13

AMP.TMP

Amplifier temperature is outside range

(–50 to 95°C).

AL. 14

EXT. TMP

External temperature is outside range. When PV is ET

Output AO upper limit or AO Lower

limit.

AL. 15

EXT. TMP

External temperature sensor resistance

is out specification.

AL. 16 PLS

Pulse output is out specification.

Continues to operate and output.

Check settings and change them.

AL. 30

PRS.RNG

Differential pressure exceeds specified

range.

When PV is Pres.

Output AO upper limit or lower limit.

Check input and range setting, and

change them as needed.

AL. 31

SP. RNG

Static pressure exceeds specified

range.

When PV is SP

Output AO upper limit or lower limit.

AL. 32

F. RNG

Flow exceeds specified range.

When PV is Flow

Output AO upper limit or lower limit.

AL. 33

ET. RNG

External temperature exceeds specified

range.

When PV is ET

Output AO upper limit or lower limit.

AL. 35 P.HI

Input pressure exceeds specified

threshold.

Continues to operate and output.

Check input.

AL. 36 P.LO
AL. 37 SP.HI
Input static pressure exceeds specified

threshold.

AL. 38 SP.LO
AL. 41 F.HI

Input flow exceeds specified threshold.

AL. 42 F.LO
AL. 43 ET.HI
Input external temperature exceeds

specified threshold.

AL. 44 ET.LO
AL. 50 P. LRV
Specified value is outside of setting

range.

Holds at the output value that existed

immediately before the error occurred.

Check settings and change them as

needed.

AL. 51 P. URV
AL. 52 P. SPN
AL. 53 P. ADJ

Continues to operate and output.

Adjust settings and change them as

needed.

AL. 54

SP. RNG

Holds at the output value that existed

immediately before the error occurred.

Check settings and change them as

needed.

AL. 55

SP. ADJ

Continues to operate and output.

Adjust settings and change them as

needed.

AL. 56

ET. RNG

Holds at the output value that existed

immediately before the error occurred.

Check settings and change them as

needed.

AL. 57

ET. ADJ

Continues to operate and output.

Adjust settings and change them as

needed.

AL. 58

FL. ADJ

Holds at the output value that existed

immediately before the error occurred.

Check settings and change them as

needed.

AL. 59

PLS.ADJ

Specified value is outside of setting

pulse output.

Normal calculation.

Under Temperature Fix Mode. PV is ET Temp. Output Fix at 4mA.

Leave from Temperature Fix Mode.

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