Pfaff 521 Instruction Manual page 53

To achieve the illustrated input menu, the following functions must be activated:
F1 (Placement stitch) – and/or
Speed (speed limitation) – and/or
Stitch count.
Select the desired speed value for the current seam section by pressing the
corresponding +/- key.
Select the desired speed value for the number of stitches in the current seam section by
pressing the corresponding +/- key.
F1 Set the stitch placement position by turning the balance wheel or by pressing the
corresponding +/- key.
Select the next input menu by pressing the Scroll key.
This input menu can only be selected if the start backtack function is
activated.
By pressing the corresponding +/- key select the desired value for the number of forward
A
stitches (A) of the start backtack for the current seam section.
B
By pressing the corresponding +/- key select the desired value for the number of reverse
stitches (B) of the start backtack for the current seam section.
By pressing the corresponding +/- key select the desired value for the start backtack
speed of the current seam section. In parameter 101 it is possible to stipulate whether
the start backtack is sewn with a fixed speed or dependent on the pedal.
Select the next input menu by pressing the Scroll key.
PM
2 F1
2 3500 125 31
PM
2 A B
2 3 3 800
Input
11 - 6