Operation Manual

6.1.3 Values of parameters specific for this class 884
Parameter change for machines with gear rate of 28/28 teeth
Parameter Original value New value Parameter description
290* 0 3 Class of the machine
111 - - Max. sewing speed
170 - - Reference position (see 6.2.2)
Parameter change for machines with gear rate 18/28 teeth
Parameter Original value New value Parameter description
290* 0 4 Class of the machine
111 - - Max. sewing speed
170 - - Reference position (see 6.2.2)
* The parameter must be entered first.
Attention: to set up parameters higher as 200, it is necessary to enter
the control with a programmer’s level (via code 3112).
6.2 Setting of machine positioning
6.2.1 Position definition
Position 1
The needle is down at the stopping in the seam. The angle 225° is on
the hand wheel scale.
Position 2
The needle is up after trimming. The angle 35° is on the hand wheel
scale.
6.2.2 Setting the machine positioning for DC1550/DA321G drive
For the needle and other elements positioning the incremental sensor
located on the hand wheel is applied which gives 512 impulses
(increments) /value in ° is displayed on the display/ and one additional
impulse per rotation. In general, the particular position is defined by
the angle between this position and t he reference position. The angle
is set by the corresponding parameter value (it is not, however,
identical with the parameter value). The position parameter values
have already been set – see chapter 6.1.3. The reference position still
rem ai n s to be s e t.
The reference position is defined by the angle 105° on the hand wheel
scale.
After dismantling, mounting, or replacement of the motor drive the
refere nce position must be set again.
A reference position setting is described in the operating manual of
the motor manufacturer Efka.
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