Maintenance; General; Testing The Converter With The Flowmeter Primary Simulator 55Xc4000; Error Messages And Checks - ABB MAG-SM Instruction Bulletin

6.

Maintenance

6.1

General

WARNING:
!
The are electrostatic sensitive parts on the
circuit boards (observe EGB-Guidelines)
6.2 Testing the Converter with the Flowmeter
Primary Simulator 55XC4000
The test procedure is described in the Flowmeter Primary
Simulator Instruction Bulletin. Part No. D184B049U01.
Only trained personnel should conduct the tests.
6.3

Error Messages and Checks

6.3.1 Error Messages by Priority

Error No. Clear Text
4 EXT.ZERO RETURN
5 EEPROM DEFEcT
NVRAM loaded
0 EMPTY PIPE
2 REF TOO SMALL
7 REFp TOO LARGE
8 REFn TOO LARGE
1 A/D SATURATED
3 FLOWRATE > 130 %
In the list below Error Codes shown in the display are
described. (These Error Codes occur only during data entry).
Error Code Cause
10 Entry >1.00 Range
11 Entry <0.05 Range
≤ 0
13 Range
max
16 Entry >10 %Low flow cutoff
17 Entry <0 % Low flow cutoff
Entry ≥ 100 sec. Damping
20
21 Entry <0.1 sec. Damping
22 Entry >99 Instrument address
38 Entry >1000 Pulses/Units
Entry ≤ 0.001 Pulses/Units
39
40 Maximum frequency scaled
pulse output >10 kHz
42 Entry >2000 ms Pulse width
43 Entry <0.032 ms Pulse width
44 Entry >5.0 g/cm
45 Entry <0.01 g/cm
54 System zero >1500 Hz
74 Entry >130 % Max. Alarm
76 Entry <130 % Min. Alarm
Cause
Ext. zero return contact active Open contact between terminals U22/22 or G2/22.
Data in EEPROM corrupted
Pipeline not full
Pos. or neg. reference too
small
Positive reference too large
Negative reference too large
A/D-Converter saturated
Flowrate greater 130 %
(>10 m/s)
max
(<0.5 m/s)
max
3
Density
3
Density
Electromagnetic Flowmeter Converter
6.2.1 Maintenance
The converter is maintenance free.
!
Note:
Please observe the "Introductory Safety Notes for the
EMF System" if a converter must be returned to the fac-
tory for repairs.
!
Service Note:
For replacement or repair, only original replacement
parts should be used.
Corrective Measures
Install replacement converter, check defective converter (see Test
Converter), readjust or return to factory.
Fill pipeline.
Check installation (signal cable). Set switch S901 correctly. Measure
reference voltage at converter (3 to 16 or 6 to 7).
Select the correct flowmeter primary type in converter. See Page 19
check installation.
Check ground (flowmeter primary). Check signal cable.
Increase flow range. (Q ).
max
35