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11.5.3
Checking the rotational direction of the DC positioning drive
CAUTION !
Make sure to check the rotational direction of the sewing drive before
commissioning the sewing machine. Operating the sewing machine
with the incorrect rotational direction can damage the machine.
The arrow on the belt cover indicates the machine's proper
direction of rotation.
A reset value in the control unit parameter defines the rotational
direction of the handwheel as counter-clockwise. This specifies the
rotational direction of the DC positioning motor. However, the rotational
direction must be verified before the initial commissioning of the
machine. Take the following steps:
–
Set the sewing foot in the high position.
–
The plugs from the set-value initiator, motor, motor sensor and
operating panel (if present) must be connected.
–
The 37-pole plug from the sewing machine head should not be
plugged in.
–
Turn the main switch on.
The operating panel displays "Inf A5" or "A5". This means that a
valid "Auto-select resistant" has not been detected. The maximum
rotational speed will therefore be limited.
–
Press down gently forwards on the pedal.
The drive starts to turn.
–
Check the rotational direction.
If the rotational direction of the drive is incorrect, then you must set
the technical-level parameter "161" to a value of 1.
(Refer to the instructions from the drive manufacturer.)
–
Turn the main switch off.
–
Reconnect the 37-pole plug from the sewing machine head
GB
35
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