LTH Electronics HPT63, Руководство по эксплуатации

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4 User Interface
16
4.4 Number entry
The , and keys allow you to set up a number between 0000 and 9999 on
the main seven-segment display as a parameter value or access code.
To set up a number, proceed as follows:
1. Press to begin editing a number. The first (left-hand) digit will start to flash.
2. Use the and keys to increment or decrement the flashing digit.
3. When the flashing digit is correct, press to confirm the setting. The next
digit will start to flash.
4. Repeat steps 2 and 3 to set the remaining three digits.
5. After pressing to confirm the last digit, none of the digits will be flashing and
the number is then ready for use.
If the number is an access code, the Padlock symbol on the display will change to a
Key symbol if the new code you have entered is correct. If the number is a
parameter value, the parameter has now been set to that value.
4.5 Error Messages
If the internal diagnostics have detected an error condition, the appropriate error
message will flash on the bottom row of the display. A reference to these error
messages can be found in Appendix F – Error Messages . Pressing the key
when an error message is flashing will scroll a more detailed description of the error
along the bottom line. Pressing again will return the unit to the flashing display.
The error messages can be disabled within the Configuration menu (see Section
12.2 Error Messages ). If the error messages are disabled, the display will flash a bell
symbol on the far right of the bottom row when an error is detected. It is possible to
configure a set point relay to provide external signalling of error conditions (see
Section 8.5 Alarms ).