7 Setting and procedure for operation
QE81WH4W
7.6.3 Initial setting
This section explains the setting of the operating condition for input voltage, primary current, current
demand time, voltage demand time, primary voltage of VT, secondary voltage of VT, primary
current of CT that are required for measurement. Once each value is set, these values will be
stored in the nonvolatile memory of the module, so that reconfiguration is not needed. You can also
perform the setting using sequence program. In this case, you need to create a program, as
referring to Chapter 8.
Follow the procedure below for each setting.
(1) Check the current setting
(2) Set the Buffer memory
(1) Check the current setting
1) From the “Online” menu, select “Monitor” – “Buffer memory batch ...”. The dialog box to
monitor all buffer memories. After setting the address as shown below, click the
Start monitoring button to check the current buffer memory status.
Module initial address:
Set the initial address of this module.
Buffer memory address:
0
(Display: 16-bit integer, numerical value: check the number in decimal)
2) Check each item. The following shows items for operating condition settings. For specific
setting value, see the provided references.
Table 7.6.3-1 List of setting items
Buffer memory
address
Item
Reference
Un
\
G0
Phase wire system
Section 6.2.1
Un
\
G1
Input voltage
Section 6.2.2
Un
\
G2
Primary current
Section 6.2.3
Un
\
G3
Current demand time
Section 6.2.4
Un
\
G4
Electric power demand time
Section 6.2.5
Un
\
G5
Primary voltage of VT
Section 6.2.2
Un
\
G6
Secondary voltage of VT
Section 6.2.2
Un
\
G7
Primary current of CT
Section 6.2.3
Figure 7.6.3-1 Dialog box to monitor all buffer memories (a case where the module is attached to the slot 0)
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