Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 109)

Load Initial Configuration Values
Chapter 7
7-33
As you read the following sections, fill in the values for the mentioned
words in the worksheets. Setting pressure control limits performs two
functions:
spanning your selected valve outputs to allow effective open loop and
closed loop control
allowing users with reverse-acting valves to configure their system
accordingly
Your injection machine manufacturer typically provides you with all
necessary values to configure these limits.
Pressure Minimum Control Limit
(FCC41, SCC41, TCC41, LPC41, FOC41, SOC41, TOC41, OSC41, EAC41, ERC41)
The value in this word corresponds to the minimum “controllable” pressure
during profile or stroke execution. This word operates in conjunction with
the selected pressure valve minimum output (word 43) below. The QDC
module expects this pressure when setting the selected pressure valve to
the percentage output defined by word 43.
Enter 0 for each Pressure Minimum Control Limit. The valve spanning
procedures presented in chapter 9 require these initial values in order to
assist you in selecting the correct, final values required by your
application. Refer to Section 3 of the Plastic Molding Module Reference
Manual (pub. no. 1771-6.5.88) for more information.
Pressure Maximum Control Limit
(FCC42, SCC42, TCC42, LPC42, FOC42, SOC42, TOC42, OSC42, EAC42, ERC42)
The value in this word corresponds to the maximum “controllable”
pressure during profile or stroke execution. This word operates in
conjunction with the selected pressure valve maximum output (word 44)
below. The QDC module expects this pressure when setting the selected
pressure valve to the percentage output defined by word 44.
Enter a value for each Pressure Maximum Control Limit equal to the
maximum pressure available through the selected pressure control valve.
The valve spanning procedures presented in chapter 9 require these initial
values in order to assist you in selecting the correct, final values required
by your application. Refer to Section 3 of the Plastic Molding Module
Reference Manual (pub. no. 1771-6.5.88) for more information.
Set Pressure Control Limits