38
4. How to Use Test Mode
The test mode has function useful for startup of systems.
The following table shows a list of functions in the test mode.
Test menu
Description
1.
Communication test
For MODBUS RTU communication function, it is possible to return
fixed numerical data without measurement (voltage/current) input.
Use this for checking with the host system.
2. to
5. No function
―
6. Functions for determining
incorrect wiring
①
Pattern display for incorrect wiring
When either a voltage input or current input is incorrectly wired, this
function automatically determines incorrect wiring and displays its
part on the screen. It is easier to find out the incorrect part and
useful to check the connection. *Note
②
Support display for determining incorrect wiring
This function displays a current phase angle, a voltage phase
angle, and active power, voltage, and current value of each phase.
By checking each display and
, it is easier to determine incorrect wiring
for measurement (voltage/current) input.
*Note: The function cannot determine all incorrect wiring. If both a voltage input and a current input are
incorrectly wired, a different pattern may be displayed.
■
Test procedure
①
Press for 2 seconds to enter the setting confirmation mode.
②
With or , select
‘9’ in the setting confirmation menu number
③
Press to enter the test mode.
④
Execute the test in each test menu. For details, refer to
■
Test mode flow
Note: The screen momentarily goes off.
Test menu 6
(Functions for
determining
incorrect wiring)
Operating mode
Test mode
+
+
+
+
+
+
SET
+
-
SET
SET
SET
Setting
confirmation
menu No.9
Test menu
End
(
Note
)
Test menu 1
(Communication
test)
+
+
Test menu 2
(No function)
Test menu 3
(No function)
+
+
Test menu 5
(No function)
+
+
Test menu 4
(No function)
+
-