Rockwell Automation 1395 Reel Tension Paster Adapter - Manual (Page 15)

Publication 1395-RTP-5.1 - September 1997
Description of Operation 2-3
When the belts have accelerated to line speed, the up-to-speed
algorithm in the Drive energizes the “Speed Match” output.
The belts should be fully down on the new roll before the accelerate
mode is initiated. When the “Speed Match” signal is present the new
roll is ready to splice.
Mode 5
SPEED MATCH (The new roll is spliced in and the belt Drive system
returns to Mode 1.)
When the new roll has been accelerated to speed match with the press
and the new web has been pasted onto the web from the old roll, the
knife will fire to cut off the old roll. At the same time the knife fires,
the “Tension Reset” signal is sent momentarily. This resets the
tension remove timer and resets the Drive to Mode 1. When the
“Tension Reset” signal is received, dancer control will return to the
belts and the Goss core brake will be disabled. To enter Mode 5, the
“At Speed” signal must be ON and the motor CANNOT be at Zero
Speed.
Mode 6
NORMAL STOP
When the “Decel” input is received in Modes 4 or 5, the belt Drive
system is stopped by ramping to zero speed and opens the main
contactor. At zero speed, the operator initiated “Tension Reset” signal
is received, returning the Drive to Mode zero, Drive ready.
Mode 7
AUTO SLACK, WEB TIGHT
The Auto Slack Mode is designed so that the belts will slowly pay off
web whenever the dancer is tensioned.
In the Auto Slack Mode as in the Normal Run Mode, the web out
detector compares the dancer position with an acceptable dancer
range. The Drive is allowed to enter Mode 7 when the dancer is below
the dancer mid-position level, which is halfway between the dancer
center and dancer full positions. When the “Auto Slack” signal is
received, the Drive automatically starts in Mode 7 and runs at a preset
speed (adjustable with Drive Parameter 633) which is set above the
press thread (inch) speed. Thus during Mode 7, the reel is paying-out
paper.
The belts will run from this internal speed reference with no dancer
trim. The normal exit from Mode 7 is to Mode 8 when the Dancer
reaches full position. If the Drive receives a “Drive Permit” signal
(DI2), the Drive reverts to Mode 1 (Normal Run).