Rockwell Automation 1771-QDC, D17716.5.93(Passport) PLASTIC MOLDING MODULE - Manual (Page 182)

Span Your Valves
Chapter 9
9-16
Span Your Clamp Close Velocity Valve(s)
Span your clamp close velocity valve(s) for smooth operation at highest
desired clamp velocity. Do this in the following procedure by finding
optimum values for:
Minimum Pressure Control Limit FCC45, SCC45, TCC45
Maximum Pressure Control Limit FCC46, SCC46, TCC46
Selected Pressure Valve, Output For Minimum FCC47, SCC47, TCC47
Selected Pressure Valve, Output For Maximum FCC48, SCC48, TCC48
Important: If your hydraulics are identical for first, second, and third
clamp close, complete the procedure for first clamp close by finding values
for FCC45-48 and enter the same four values for second and third clamp
close, SSC45-48 and TCC45-48. If your hydraulics are different, repeat
the procedure as needed.
Important: If PanelView is operational for clamp profiles, use it to:
observe actuals
change and download setpoints
run profiles
Important: We suggest that you read this procedure before starting.
ATTENTION: As with any machine start-up, install a test
mold. Programming errors, configuration errors, or hydraulic
problems could lead to personal injury and/or machine damage.
ATTENTION: Be sure all machine guards and shields are in
place before proceeding to guard against personal injury.
1. Obtain a copy of the flow rate curves provided by your flow valve
manufacturer. The flow rate curves graphically illustrate the flow
through a valve at different voltage or input current levels and at
different pressure drops across the valve’s spool.
2. From the above curves, determine the minimum and maximum clamp
close flows available from your flow valve at the pressure you would
normally run during clamp close operation. Record these flows,
along with the input voltages/current associated with them.