Rockwell Automation 1771-QDC, D17716.5.93(Passport) PLASTIC MOLDING MODULE - Manual (Page 219)

Span Your Valves
Chapter 9
9-53
Span your ejector pressure valve(s) for optimum pressure performance.
Do this in four parts:
Confirm critical values
Span your ejector pressure valve(s)
Test valve linearity with an ejector pressure profile
Set pressure alarm setpoints
Important: Omit the procedure Span your ejector pressure valve(s) in this
section if the recorded manufacturer’s valve spanning data for pressure
control limits EAC41-44 and ERC41-44 are adequate for your application.
Confirm Critical Values
Important: Confirm that all entries you made 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 pressure control valve
EAC02ĆB06, B05, B04 = your selection
ERC02ĆB06, B05, B04 = your selection
B39/22, 21, 20
B37/86, 85, 84
Unselected setĆoutput values for outputs 1Ć4 EAC09Ć12 = ERC09Ć12 = your value N45:05Ć08, N45:65Ć68
All ramping is disabled with zero ramp rates EAC17Ć20,25Ć28 = ERC17Ć20,25Ć28 = 0 N45:13Ć16,21Ć24, N45:73Ć76,81Ć84
Pressure limits:
Minimum Control Limit
Maximum Control Limit
Selected Pressure Valve, Output for Min
Selected Pressure Valve, Output for Max
EAC41 = ERC41 = 0
EAC42 = ERC42 = system pressure
EAC43 = ERC43 = your value
EAC44 = ERC44 = your value
N45:37, 97
N45:38, 98
N45:39, 99
N45:40, 100
8ĆF Forward dwell - apply after final stroke EPC03ĆB15 = 0 B39/175
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
Profile algorithm - pressure vs. position EPC03ĆB00 = 1 B39/160
Expert Response Compensation (ERC) = Off EPC04ĆB09 = B08 = 1 B39/185Ć184
OpenĆloop control EPC04ĆB01 = B00 = 1 B39/177Ć176
EPC velocity setpoints EPC09, 12, 15, 21, 27, 33, 36, 39 = zero N45:125,128,131,137,143,149,152,155
EPC pressure setpoints EPC10, 34 = your value
EPC13, 16, 22, 28, 37, 40 = zero
N45:126, 150
N45:129,132,138,144,153,156
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 -
Pressure Valve(s)