Rockwell Automation 1771-QDC, D17716.5.86(Passport) PLASTIC MOLDING MODULE - Manual (Page 202)

Span Your Valves
Chapter 9
9-45
Test Valve Linearity with a Clamp Open Pressure Profile
1. Jog your clamp to the full open position.
2. Enable first clamp open by setting DYC02-B10 (B34/410) = 1. The
clamp should move from its start position through the first clamp
open and open slow profiles. If no motion, verify that:
- no overtravel alarms are set. The QDC module inhibits clamp
open if SYS07-B00 through SYS07-B05 are set
- no programming error codes exist in SYS61 and SYS62
3. Upon completion of clamp open, observe the pressure reported for 1st
clamp open segment 2 (OPS13, N43:721). If the observed pressure is
not about equal to the setpoint you entered in OPC13, then check:
- was your valve and solenoid alignment the same for clamp open
profile execution and clamp open action in set-output?
If the observed pressure OPS13 is still not within 20% of OPC13, your
pressure is not linear over the desired range. Correct as follows:
If: And Your Selected
Valve is:
Then change FOC44
(N43:340) as follows:
OPS13 was less than OPC13 Direct Acting Increase in 5% steps
Reverse Acting Decrease in 5% steps
OPS13 was more than OPC13 Direct Acting Decrease in 5% steps
Reverse Acting Increase in 5% steps
To do this: change FOC44, download the FOC and OPC blocks, and repeat
steps 1-3. Do this as necessary.
Important: If downloading from your programming terminal, download
FOC followed by OPC with download bits B21/16 and 20 (chapter 4).
4. Copy final FOC44 (N43:340) into SOC44, TOC44 and OSC44
(N43:400, 460, and 520), and download these changes.
Important: If downloading from your programming terminal, download
FOC, SOC, TOC and/or OSC followed by OPC (chapter 4).
To download: Set B21/
FOC 16
SOC 17
TOC 18
OSC 19
OPC 20