GE D25 - Page 90

D25
User's Manual
GE Grid Solutions
90
994-0081-3.00-21 GE Information
Testing Hardware I/O Points, Continued
Procedure:
Verify Analog
Input (cont’d)
On the Analog Input Display:
Step Action
5 Press CTRL+G and type the number of the first input point (if
known), or use the up and down arrow keys to scroll to the desired
analog input point.
6 Connect one end of testing leads to a calibrated voltage or current
source.
7 Connect the other end of the leads to the first analog input point on
the DC analog input termination.
8 Using the following table as a reference, adjust input voltage or
current to these levels:
• 0% of full scale
• 5% of full scale
• 95% of full scale
9 Verify that the values displayed in WESMAINT fall near the
values shown in the following table.
10 Go back to Step 5 and repeat as desired for other points on the DC
analog input termination.
Table: DC
Analog Input
Values
Use this table to verify the DC analog input values.
DC Input
Option
0% FS Nominal
Displayed
Count
5% FS Nominal
Displayed
Count
95% FS Nominal
Displayed
Count
5 V 0 V
0
0.25V
1638
4.75V
31129
1 mA 0 mA 0.05 mA 0.95 mA
5 mA 0 mA 0.25 mA 4.75 mA
10 mA 0 mA 0.50 mA 9.5 mA
20 mA 0 mA 1.0 mA 19 mA
Notes
• Full-scale for all displayed DC analogs is represented by a range of 32767 to
-32768 (15-bit plus sign value).
• Full-scale of DC Voltage and Current measurements is the nominal value.