MG 40 Series - Basic Setting and Operation; Basic Setting; Basic Setting Flow; Relation between Input Scaling and Display Scaling

1740DCT EM-9538-B Rev.5
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
2. BASIC SETTING AND OPERATION
2.1 BASIC SETTING
This section describes ow and procedure of the basic setting.
The following shows the ow and procedure to set the CT secondary to 0 – 1 A AC and the CT primary to 0.0 – 300.0 A AC
with the input code ‘A4’ as an example.
2.1.1 BASIC SETTING FLOW
The basic setting is as shown in the following owchart.
2.1.2 RELATION BETWEEN INPUT SCALING AND DISPLAY SCALING
The relation between input scaling and display scaling is as shown in the following gure and chart.
Input scaling: 0% input value (input scaling value A) and 100% input value (input scaling value B)
Display scaling: 0% display value (display scaling value A) and 100% display value (display scaling value B)
Power ON
Starting measurement
Setting input scaling value A
Setting display scaling value A
Setting input scaling value B
Setting display scaling value B
Setting decimal point position
0.000 A
Input scaling value A
0.000 A
Display scaling value A
0.0 A
Input signal
Input scaling
Display scaling
1.000 A
Input scaling value B
1.000 A
Display scaling value B
300.0 A
Display value
300.0 A
0.0 A
0.000 A 1.000 A
Input value
Code ‘A4’ : 0.000 – 1.000 A AC