Rockwell Automation 1771-QDC, D17716.5.86(Passport) PLASTIC MOLDING MODULE - Manual (Page 68)

Jog Your Machine
Chapter 5
5-7
Jog your ram (screw) and clamp, one at a time, in forward and reverse
directions. Experiment with values you entered in the jog configuration
block (JGC) until you obtain the desired jog operation.
You must download the JGC to the QDC module each time you change a
value in the command block to implement the new value. Refer to the
download procedure outlined in chapter 4.
If You Observe This Condition: Then Make This Adjustment:
Rough jerky acceleration or deceleration
(hammering hydraulics)
1) Decrease jog pressure
2) Decrease jog flow
Sluggish acceleration or deceleration 1) Boost jog pressure
Although the QDC module (in inject and clamp mode) may not directly
control your machine’s screw-rotate and ejector jogs, your hydraulics may
require valves connected to this QDC module’s outputs to go to a certain
position to assure proper screw-rotate and/or ejector jog functions. The jog
configuration block lets you set up these indirect jog values.
If your hydraulics require it, take time now to set your valves connected to
the QDC module in inject and clamp mode to assist with screw-rotate
and/or eject jogs. Otherwise, omit the rest of this chapter.
Whenever the appropriate screw-rotate or ejector jog bit is set in dynamic
command block DYC01, the jog configuration block (JGC) values
corresponding to the respective jog are applied to QDC module outputs.
1. In Worksheet 5-B, enter values which must be applied to the QDC
module in inject and clamp mode to successfully execute screw-rotate
and/or ejector jogs.
Important: Jog-specific high pressure alarms are NOT activated in a QDC
module in inject and clamp mode during screw-rotate and ejector jogs.
2. Download the jog configuration block (JGC) using the download
procedure outlined in chapter 4.
Jog Your Ram (Screw)
and Clamp
Configure ScrewĆrotate and
Ejector Jogs
for Indirect Control