Setting The External Synchronized Operation - Toshiba LQ500 Operation Manual

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6.7.2

Setting the external synchronized operation

(1) Setting the delayed time (see Subsection 5.2.10)
(1-1) Switching to the setting mode (see Subsection 5.2.5)
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 "2" of "2
SETTING MENU" and then press the [SET] key to display the warning message
saying "Test output will be valid." Make sure that there is no problem and then press
[→] to get into the setting mode. And return to [2: SETTING MENU]. Then, the
output will be switched to the simulated output that is set beforehand.
(1-2) Selecting the parameter setting menu (see Subsection 5.25)
The menu list of menu numbers 5 to 8 is displayed. Use the [→] key to move the LCD
indicator cursor to the menu number "5" of "5: SET PARAMETERS" and then press
the [SET] key to select the menu of "5: SET PARAMETERS."
(1-3) Setting the delayed time at the time of external synchronized(see Subsection 5.2.10)
Press the [UP] key five times to select the setting menu of the delayed time at the
time of external synchronized(dt: DELAYED SYNC. TIME). Press the [SET] key to
get into the set value input screen and then enter an appropriate value (the time
sufficient for the measured matter to flow up to the density meter and fill up the pipe
after the shifting pump operation is started). Use the [→] key to move from one digit
to another. Use the [UP] and [DN] keys to switch around the number of the relevant
digit. When the input is completed, press the [SET] key to confirm it. Then, the display
will be returned to the immediately preceding menu screen. Verify that the resetting
has been done correctly.
(2) Setting the simulated output at measurement suspension (at external contact OFF)
(see Subsection 5.2.16)
As the simulated output when the measurement is suspended (at external contact OFF), it is
possible to select from among three options as shown in Table 6.7.1. Make sure to select a
simulated output suitable to your system.
Table 6.7.1 Density Display and Output at Measurement Suspension
Mode
"4mA" (Standard)
"TEST"
"LAST"
(2-1) Selecting the "OTHERS" setting menu (see Subsection 5.2.5)
Continuing on from (1), press the [ESC] key to return to the display of menus 5 to 8 in
setting mode. Press the [UP] key to switch to the display of the next menus 9 to 11.
Use the [→] key to move the cursor of the LCD indicator to the menu number "11" of
"11: OTHERS" and press the [SET] key to select the "11: OTHERS" menu.
in External Synchronized Operation
Density Indicator Display
Held in 0%TS
same as the simulated output
value in setting mode
Holds the density measured value
immediately before OFF
 66 
Output (4 - 20mA)
Output held in 4mA
Same as the simulated output value
correspondence output in setting
mode
Holds the density measured value
correspondence output immediately
before OFF