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IM 1E7B0-02E
9-1
9. MAINTENANCE
9.
MAINTENANCE
9.1 Loop Test (Test
Output)
This function enables you to set up any desired value,
and to output it from the converter. Since this function
correponds to flow rate totalization display and pulse
output, this makes it possible to check operation of
individual functions.
The test functions of status output are also provided.
IMPORTANT
•Test outputs take priority of the flow signal. Do
not forget to return to the normal operation
mode after the loop test.
•In case "BI DIRECTION" is set at OUTPUT
FUNCTION (Parameter No. b10), the setting
range is available -108 to +108. Please set the
loop test value in +/- percentage based on the
larger flow span within forward and reverse flow
span.
•In case "AUTO 2 RANGES" is set at OUTPUT
FUNCTION (Parameter No.b10), the loop test
setting value should be set in percentage based
on the second range.
9.1.1
Settings for Test Output Using
Data Setting Keys
(1) Current Output (Corresponding to Flow Rate,
Pulse and Totalization Display)
Display
Description
Call up the setting mode and display "H1"
(test mode ) and set "01".
Display "H2" and set the value in % of
maximum span.
(The figure shows a 100% setting.)
Code
Content
00
01
Normal operation
Test output
Setting range
: -8(-108) to 108%
*These functions must be returned to their original
status during flow rate measurements.
(2) Status Output
Display
Description
Call up the setting mode and display "H1"
(test mode ) and set "01".
Select the mode of status to be output in "H3".
Code
Content
00
01
Normal operation
Test output
Code
Content
00
01
02
Normal operation
Transistor contact (ON)
Transistor contact (OFF)
*These functions must be returned to their original
status during flow rate measurements.
9.1.2
Setting for Test Output Via the
BT200
(1) Current Output (Corresponding to Flow Rate, Pulse
and Totalization Display)
Display
Description
PARAM
H01:TEST MODE
TEST
H02:OUTPUT VALUE
100 %
H03:STATUS OUT
NORMAL
DATA
ESC
DIAG
Select Test mode in parameter number "H01".
Display "H02:OUTPUT VALUE" and set
the value in % of maximum span.
(The figure shows a 100% setting.)
Code
NORMAL
TEST
Normal operation
Test output
Description
*These functions must be returned to their original
status during flow rate measurements.
(2) Status Output
Display
Description
PARAM
H01:TEST MODE
TEST
H02:OUTPUT VALUE
100 %
H03:STATUS OUT
NORMAL
DATA
ESC
DIAG
Call up the setting mode and display "H1"
Select the mode of status to be output in "H03".
Code
NORMAL
TEST
Normal operation
Test output
Content
Code
Content
NORMAL
CLOSED(ON)
OPEN(OFF)
Normal operation
Trarsistor contact (ON)
Trarsistor contact (OFF)
(test mode) and set "01".
*These functions must be returned to their original
status during flow rate measurements.