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11.5.4
Checking the positioning
11.5.5
Machine-specific parameters
36
The needle position should already be properly set upon arrival of the
sewing machine. However, the needle position should be checked
before starting up the machine.
Prerequisite
·
The sewing foot should be set in the high position. (Refer to the
operating instructions).
·
The machine should be set to stop over position 1 (with the needle
down).
Position 1
–
Turn the main switch on.
–
Press forward on the pedal briefly and then return to starting
position.
The needle is in position 1.
–
Check the position of the needle.
Position 2
(only with switched-off reverse rotation (parameter 182 set to 0)
–
Press the pedal first forward and then completely back.
The needle is in position 2 (thread lever is at top dead centre).
–
Check the position of the thread lever.
If one or both needle positions are incorrect, then you must correct the
positioning. (Refer to the operating instructions.)
General
The programming and setting of parameters are used to specify the
functions of the sewing drive controller.
Auto-select
The controller detects which sewing machine class is connected by
measuring the auto-select resistance from the machine. Auto-select is
used to select the control functions and the pre-set values of the
parameters.
CAUTION !
If the controller detects an invalid or absent auto-select resistance,
then the sewing drive will only operated with emergency-run functions.
This serves to protect the machine from damage.
–
The correct machine class can be set using parameter F-290, in
accordance with the parameter data sheet 9800 331104 PB50.
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