6.0 TENSION CONTROL
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MAGPOWR Spyder-Plus
MI 850A320 1 M
Page 17 of 60
6.4.1
QUICK STABILIZE
– FIRST STEP
Default tuning parameters are embedded in the Spyder and were selected to minimize instability. If the system is
exhibiting extreme fluctuations at start-up, perform the following procedure to quickly stabilize it. Fine-tuning using
“Tuning” will still be required. NOTE: The system must be running to Quick Stabilize.
Navigate to the
Quick Stab
menu and press
.
Press
If Unstable
to immediately try to stabilize. The Spyder
automatically steps through three separate stages in an attempt to stabilize the process.
The Quick Stab screens are all similar to this one:
Besides “P” the parameter being tuned can also be “E” or “I”. The number next to this letter is not the value of the
parameter. It is there to show the progress of the tuning. Its values can be between 00 and 99. 00 is displayed
when that parameter is as stable as it can be. When the system is stable press
Done.
The Spyder will tell you
which parameter should be retuned such as:
Pressing
will automatically take you to the correct parameter to be retuned. This particular message needs some
comment. Retune
P
at the present diameter (not at core) if P was previously tuned at core and this message
repeatedly comes up. For large roll builds the system may need to be Quick Stabilized a few times while a roll is
being wound or unwound for the first time.
Note that Error Limit may have been reduced during Quick Stabilize. Decreasing Error Limit can sometimes
stabilize a system, but increasing it will not usually cause a system to become unstable. Therefore, "Optimizing"
does not work for Error Limit. The system can be made more responsive by increasing Error Limit in the
Parameters menu.
6.4.2
OPTIMIZE TUNING - SECOND STEP
6.4.2.1 Unwinds and rewinds.
Navigate to the
Tuning
menu and press
. For unwinds and rewinds this yields the screen:
The Spyder should be optimized at or near full roll first. On rewinds “Quick Stab” may be needed while a full roll is
wound before optimizing at full roll.
The Spyder should be optimized at core only after it has been optimized at full roll. On unwinds “Quick Stab” may be
needed to keep the system stable while an initial roll is unwound.
See Section 6.4.3 for a typical tuning screen.
6.4.2.2 Point to point systems.
Navigate to the
Tuning
menu and press
. For point to point systems this yields the screen:
The Spyder should be optimized in the order shown.
See Section 6.4.3 for a typical tuning screen.
