Instruction manual

6.8.6 Checking the direction of rotation of the sewing drive
Caution !
Before putting the special sewing machine into operation, the
direction of rotation of the sewing drive must imperatively be checked.
Operating the special sewing machine in the wrong direction of
rotation can lead to damages.
The arrow on the belt guard indicates the correct direction of
rotation of the machine.
The direction of rotation of the direct-current positioning actuator is
set by the preset value of the corresponding parameter to the
anti-clockwise rotation of the handwheel. Nevertheless the direction
of rotation must be checked first. In order to do so follow this
procedure:
Preparation! Lock the sewing foot in lifted position.
(see the operating instructions)
Control unit DA321G
–
The plugs of the set value initiator, motor, motor sensor and
operating panel (if existing) must be plugged in.
–
Do not plug in the 37-pole plug of the sewing machine head.
–
Switch on the main s witch.
The operating panel displays “Inf A5" or ”A5" which means that no
valid autoselect resistance is recognized and therefore the
maximum speed is limited.
–
Push the pedal slightly to the front; the drive rotates; check the
direction of rotation.
–
If the direction of rotation is not correct, the parameter 161 in the
“technician level” must be set to 1.
–
Tur n off the main switch.
–
Plug in the 37-pole plug of the sewing machine head again
6.8.7 Checking the positioning
Upon delivery of the sewing machine the needle positions were set
correctly. Nevertheless the needle positions should be checked before
putting the machine into operation.
Prerequisite!
The sewing foot must be locked in lifted position. (see operating
instructions).
The machine must position during an intermediary stop in position 1
(needle downwards).
Position 1
–
Switch on the main s witch.
–
Briefly push the pedal to the front and bring it back to its initial
position. The needle positions in position 1 (about 126° on the
handwheel).
–
Check the position of the needle.
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