Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 65)

Jog Your Machine
Chapter 5
5-6
Jog your clamp and ejector in both the advance and retract directions.
Experiment with the values entered in the Jog Configuration block (JGC)
until you obtain the desired jog operation.
The JGC must be downloaded to the QDC module each time a value in the
command block is changed for the new value to take effect. Refer to the
download procedure outlined in chapter 4.
If You Observe This Condition: Then Make This Adjustment:
Rough Jerky Acceleration/Deceleration
(Hammering hydraulics)
1) Decrease jog pressure
2) Decrease jog setpoint
Sluggish Acceleration/Deceleration 1) Boost jog pressure
Although this QDC module may not be directly controlling your machine’s
screw or injection cylinder jogs, your hydraulics may require valves
connected to this QDC module’s outputs to go to a certain position to
assure proper screw and injection cylinder jog functions. The QDC jog
configuration block allows you to set up these indirect jog values.
1. Whenever the appropriate inject cylinder or screw jog bit is set in
dynamic control block word 1 (DYC01), the jog configuration block
(JGC) values corresponding to the respective jog are applied to the
QDC outputs.
2. In Worksheet 5-B, enter values which must be applied to the Clamp
and Eject QDC module in order to successfully execute injection
cylinder and screw rotate jogs.
Important: Jog-specific high pressure alarms are not activated in a Clamp
and Eject QDC module during screw rotate and inject cylinder jogs.
Configure Jogs for the
Screw and Injection Cylinder