Rockwell Automation 1771-QDC, D17716.5.93(Passport) PLASTIC MOLDING MODULE - Manual (Page 224)

Span Your Valves
Chapter 9
9-58
Span your ejector velocity (flow) valve(s) for optimum velocity
performance. Do this in three parts:
Confirm critical values
Span your ejector velocity (flow) valve(s)
Test valve linearity with an ejector velocity profile
Important: Omit the procedure Span your ejector velocity (flow) valve(s)
in this section if the recorded manufacturer’s valve spanning data for
pressure control limits EAC45-48 and ERC45-48 are adequate.
Confirm Critical Values
Important: Confirm that all your entries for configuration values (chapter
7) and profile values (chapter 8) are as follows:
On Worksheet: Confirm Your Configuration: With These Words or Bits: ProĆset Addr:
7ĆM, 7ĆN QDC module output to which you connected
your selected velocity control valve
EAC02ĆB02, B01, B00 = your selection
ERC02ĆB02, B01, B00 = your selection
B39/18, 17, 16
B39/82, 81, 80
Unselected setĆoutput values for outputs 1Ć4 EAC09Ć12 = ERC09Ć12 = your value N45:05Ć08, 65Ć68
All ramping is disabled with zero ramp rates EAC17Ć20, 25Ć28 = ERC17Ć20, 25Ć28 =
0
N45:13Ć16, 21Ć24, 73Ć76, 81Ć84
Velocity limits:
Minimum Control Limit
Maximum Control Limit
Selected Velocity Valve, Output for Min
Selected Velocity Valve, Output for Max
EAC45 = ERC45 = 0
EAC46 = ERC46 = max velocity spec.
EAC47 = ERC47 = your value
EAC48 = ERC48 = your value
N45:41, 101
N45:42, 102
N45:43, 103
N45:44, 104
8ĆF Forward Dwell - apply after final stroke EPC03ĆB15 = 0 B39/175
Velocity Units - inches/second EPC03ĆB14 = 1 B39/174
Type of stroke - all full strokes EPC03ĆB13 = 0 B39/173
Continue or stop/notify - your selection EPC03ĆB12 B39/172
Ejector profile On/Off - profile On EPC03ĆB09 = 0 B39/169
Logical bridge - start on command from PLC EPC03ĆB08 = 1 B39/168
Expert Response Compensation (ERC) = Off EPC04ĆB09 = B08 = 1 B39/185Ć184
OpenĆloop control EPC04ĆB01 = B00 = 1 B39/177Ć176
EPC endĆofĆsegment position setpoints EPC11, 14, 23, 29, 35, 38 = zero N45:127,130,139,145,151,154
Ejector forward dwell timer preset EPC57 = zero N45:173
Ejector full advance position setpoint EPC59 = your value N45:175
Ejector full retract position setpoint EPC60 = your value N45:176
Clamp position for start ejector profile EPC61 = value in OPC62 N45:177
Clamp position for ejector inhibit EPC62 = your value N45:178
Ejector position for clamp close enable EPC63 = your value N45:179
Ejector strokes required EPC64 = one N45:180
If these are not your current values, we suggest that you correct them now
using the download procedure discussed in chapter 4.
EAC, ERC Profiles -
Velocity (Flow) Valve(s)