Rapid-Air SERVO FEED WITH TRANSTERM: C, S, X, HT SERIES User Manual

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The only section that has not been covered in this write-up is the ramp adjust mode. The
ramp adjusts how fast the servo motor gets up to speed and how fast it stops. This feature is
an asset that is seldom adjusted but can be a sure cure if material slippage seems to be a
problem. With the main menu screen displayed the key labeled ramp is active. Pressing the
ramp key produces this display.

RAMP PARAMETER F1=ACCEL
F2=DECEL F3=TYPE F4=EXIT

PRESS F1 OR F2

Pressing the F1 or F2 keys wil produce one of the following displays. The lower the number
entered, the longer the ramp cycle. Press F1 or F2 now.

ACCEL MAX 75000 RPM/SEC DECEL MAX 75000 RPM/SEC
% MAX ACCEL=XXX% F4=NEXT % MAX DECEL=XXX% F4=NEXT

The Ramp usually is factory set at .015 on the series 100 drives and .035 on the series 200 &
300 drives. There is some deviation to this when the factory runs the unit, but this is a basic
starting point. Once the ramps have been set then press F3 on the keypad to display the
following screen.

ENTER ACCEL RAMP TYPE=X
JERK=0 S-CURVE=1 F4=NEXT

Although this screen has a decision to be made, we have found that for most standard
applications that entering a “0” jerk mode gives the best running results. We ask that if
changing the ramp parameters, it is a good idea to also reconfirm the type being used-jerk
mode. Press F4 twice to get back to the main menu and then the programming procedure
section is complete.