Setting The External Synchronized Operation - Toshiba LQ300A00 Series Operation Manual

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. To get
into [2: SETTING MENU], it is necessary to further enter the password "8000". 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 in External Synchronized
Operation
Mode
"LAST"
"4mA" (Standard)
"TEST"
"LAST"
Density Indicator Display
Holds the density measured value
immediately before OFF
Held in 0%TS
same as the simulated output value
in setting mode
Holds the density measured value
immediately before OFF
 66 
6 F 8 A 0 7 8 7
Output (4 - 20mA)
Holds the density measured value
correspondence output immediately
before OFF
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