Error Indications And Recovery Operations - Toshiba LQ300A00 Series Operation Manual

8.2 Error Indications and Recovery Operations

If an error occurs to the density meter, the error indicator [ALARM] will light up and a contact signal
(OFF) will be output.
Check the self-diagnosis data for any faulty values in accordance with the following steps.
(1) Monitor menu display (see Subsection 5.2.4)
First of all, press the [ESC] key of the converter several times (normally once although this varies
with the operation status) to return to the initial menu display. Next, use the [→] key to move the
LCD indicator cursor to the menu number "1" of "1: MONITORING MENU" and then press the
[SET] key. (The cursor of the initial state is located on "1".)
(2) Switching to the self-diagnosis menu (see Subsection 5.2.7)
In the monitoring menu, use the [→] key to move the cursor of the LCD indicator to the menu
number "3" of "3: SELF-DIAGNOSIS" and then press the [SET] key.
(3) Checking the self-diagnosis data (see Subsection 5.2.9)
Press the [UP] key to move from one self-diagnosis data to another to check for any error.
◆ To detect which numerical range is an error value, please refer to Table 8.2.
(4) Terminating the self-diagnosis
After checking, press the [ESC] key twice to return to the initial menu display.
If an error value is found, turn off all the power switches of the converter and then turn them back on.
The self-diagnosis is executed all over again by the powering-ON. If an error is displayed again as a
result of the self-diagnosis, send the relevant item to our Service Department.
 72 
6 F 8 A 0 7 8 7