Current Input; Setting The Conversion Ratio Of The Current Transducer - Siemens SENTRON PAC4200 Manual

Startup
7.3 Parameterizing the device
7.3.5

Current input

7.3.5.1

Setting the conversion ratio of the current transducer

The conversion ratio must be set before initial startup.
Figure 7-8
Procedure
1. In the "SETTINGS" menu, call the "BASIC PARAMETERS" entry.
2. In the "BASIC PARAMETERS" menu, open the "CURRENT INPUTS" entry:
<F4>
The display shows the currently valid settings.
3. Open edit mode of the "CT PRIMARY" device setting:
<F4>
4. Set the desired value of the primary current:
<F2>
5. Accept the value with:
<F4>
The value of the primary current is permanently saved and becomes effective
immediately.
The display returns to display mode.
6. Go to the "CT SECONDARY" device setting:
<F2>
Set the desired value for the secondary current. Proceed in exactly the same way as
when entering the primary current.
The value of the secondary current is saved permanently and becomes effective
immediately.
The display returns to display mode.
7. Return to one of the selection menus or to the measured values display:
<F1>
Example
You want to measure the current using current transformers for 5000 A/5 A.
For this purpose, enter:
1. CT PRIMARY: 5000A
2. CT SECONDARY: 5A
94
"CURRENT INPUTS" device setting
and <F3>
or <F3>
SENTRON PAC4200
Manual, 09/2008, A5E02316180B-01