Electromagnetic Flowmeter COPA-XT
15
An error message is displayed in the 1st line of the display
when an error condition exists.
This message is displayed alternately in clear text and then with
the corresponding error number. Only the clear text message
for the error with the highest priority is displayed, while all errors
detected are indicated in the display by their error number.
In addition to the display of the error messages, an alarm signal
is transmitted over the optocoupler and the current and pulse
outputs are set (does not apply to Error 6).
The pulse output is always set to 0.
The current output is set 4 mA or 22 mA.
5.2
Data Entry
The data is entered using the three keys STEP
↑
,
DATA
↓
and C/CE located on the Operator Unit plugged into the
converter.
It is possible to configure the converter without removing the
housing cover by utilizing the magnetic stick.
The converter remains on-line during data entry, i.e. the current
and pulse outputs continue to represent the operating
conditions. A description of the functions of the keys follows:
C/CE
The C/CE key is used to switch between
the operating mode and the menus.
STEP
↑
The STEP key, one of two arrow keys.
The STEP key is used to scroll forward
through the menus. All desired parameters
can be accessed with the STEP key.
DATA
↓
The STEP key, one of two arrow keys.
The STEP key is used to scroll backward
through the menus. All desired parameters
can be accessed with the STEP key.
ENTER
The ENTER function is initiated by
simultaneously pressing the two arrow
keys
STEP
↑
STEP and DATA. The program protection
is turned on or off with ENTER. Access the
parameter to be changed with ENTER and
accept the new value or selection with
ENTER
DATA
↓
The ENTER function is only active for
approx. 10 seconds. If no entry is made
during this time it must be pressed again.
The ENTER Function with
Magnetic Stick Operation
The ENTER function is activated when the DATA/ENTER
sensor is actuated for more than 3 seconds.
The display blinks to indicate confirmation.
Data is entered by two different entry modes:
•
Direct numerical entry
•
Entry from a predefined table.
!
Note:
The values entered are checked for plausibility, and if
necessary, are rejected with an appropriate message.
If no entries are made within a 10 second period. the
converter displays the old value. After an additional
10 seconds, the process information display reappears.
Error
Number
Clear Text
Cause
5
C
3
6
9
A
B
EEPROM
Primary data
Flowrate > 105 %
Totalizer
Excitation
Max. Alarm
Min. Alarm
Data in internal EEPROM
corrupted.
Error in external EEPROM or not
installed.
Flowrate greater than 105 %.
Totalizer values corrupted.
Contact ABB -Service
Max. alarm limit exceeded.
Min. alarm limit exceeded.
Error Table by Priority
Flowrate >
105
%
F
12.0000 m3
→
Ext. EEPROM
Data Memory
Module
Magnet stick
operation
3 Keys for direct
operation
Fig. 27
Converter Keypad and Display