Pfaff expression 2014 Service Manual page 9

Specifications of the PFAFF expression 2034 - 2044
Fully-electronic free-arm, utility and fancy stitch sewing machine
16 bit processor with 3 Kbyte RAM and 96 Kbyte ROM, 512 Byte EPROM
Bobbin thread stitch width = 0 - 6 m with 30 full steps or 60 half steps
Stitch length = 0 - 6 mm forwards and 0 - 6 mm backwards with a total of 30 full steps or 60 half steps
in each direction
A full step is 0.2 mm and a half step 0.1 mm
Keys for stitch width, stitch length, pattern length and balance
13 different needle positions
Mirroring key
Info key
One 7.5° stepping motor for needle zigzag motion 30 V
(contact current switching controller)
One 7.5° stepping motor for feed control 30 V
(contact current switching controller)
3-track synchronizer
Electronically controlled take-up lever "up" (needle "up" positioning) of needle "down" position
with display
Key with indicator for half speed (540 r.p.m)
Key with indicator for tying off stitch patterns
Key for reverse sewing or for finishing a manual buttonhole
Digital motor control with 950 r.p.m max. speed
Approx. 100 - 950 stitches per minute
Several pattern-dependent reduced speeds in addition
Numerical LCD, with graphics and a white background
Built-in test program
When machine is blocked, the motor is switched off automatically after 1 - 2 secs. (Followed by
approx. 4 secs. interruption before sewing process can be continued.)
Machine: voltage change-over 115/230 V, 50 - 60 Hz
Low-voltage motor
High-ohm foot control (cold)
FM radio and TV screened, approval marking; safety class II with CE, VL, CSA test markings
Master switch for motor, electronics and sewing lamp
Glare-free built-in sewing lamp 12 V / 5 W
Needle threader
Bobbin thread monitor with LED on expression 2044
Buttonhole guide
Pendulum-type needle bar frame
Transmission of drive from arm shaft to lower shaft by flat toothed belt, transmission ratio 1:1
Power input rating:
Lockstitch of types 301, 302, 303, 304, 305, 308 and all other variants obtainable by sideways needle
movement or forwards and reverse control of the machine feed
PFAFF horizontal double-rotating hook (9 mm hook on model 2044)
Link take-up
Bobbin thread monitoring on model 2044
75 W when sewing at 950 r.p.m.
27 W when stationary
7