Glossary

MACHINE ZERO

The highest point of the needle bar, positions mentioned in this book are based on this, such as the angle of the magnet action/release, where the motor stops, etc.

Attention

It’s very important to make sure you set it correctly.

MACHINE ID

Code used to indicate the machine model.

Attention

It’s very important to make sure you set it correctly.

POSITION 2

Press the pedal fully forward, e.g. run at max. speed

POSITION 1

Press the pedal slightly forward, e.g. run at positioning speed

POSITION 0

Press pedal to neutral position

POSITION -1

Press the pedal half heelback, e.g. sewing foot lifting

POSITION -2

Press the pedal full heelback, e.g. initiating the seam end

time period t1

The duration of full power (100% duty cycle) of the output port

time period t2

The duration of the non-100% duty cycle of the output port

Quick Keys

Generally refers to the separate thumb button, near the needle

Keypad

A special input device, strip key box usually with six or seven buttons and leds

stitches

The sewing machine makes one complete revolution to form one stitch.

spm

Stitches per minute, it is used to indicate machine speed

rpm

Revolutions per minute, it is used to indicate motor speed

ms

Microsecond

s

Second

h

Hour

%

Percentage

1°

One full rotation is 360 degrees

V

The volt is the unit of voltage

A

The ampere is the unit of electric current. This book may use 0.1A, which is one-tenth of 1 amp