Rockwell Automation 1771-PD PID MODULE (+DU) - Manual (Page 146)

Chapter 5
5Ć11
<_
V = V
AD
-10.000V dc
11. Calculate the common mode calibration voltage and record the value.
It will be used in step 15.
CMV = 2.50V dc +
<_
V
4
12. Jumper TERMINAL 11 to 14.
13. Reconnect the D
C voltage standard as follows, set to the CMV voltage from step 11.
+lead to TERMINAL 8
-lead to TERMINAL 11
14. Connect the digital voltmeter as follows (the reading will be
negative):
+lead TP3
-lead TERMINAL 8
15. Adjust R58 until the CMV (negative) voltage from step 11 is
obtained at TP3.
16. Remove the DC voltage standard.
17. Place the E18 programming plug in the standard compliance upper
position.
18. Remove the jumper from TERMINALS 11 AND 14.
19. Reconnect the DC voltage standard as follows, set to +1.0000V dc
+lead to TERMINAL 14
-lead to TERMINAL 8
20. Reconnect the digital voltmeter as follows: