Instruction manual

6.6 Checking the direction of rotation of the sewing drive

CAUTION:

Before the special sewing machine is started it is essential

to check the direction of rotation of the sewing drive.

Switching it on can cause damage if the direction of rotation

is incorrect.

The arrow on the belt guard indicates the correct direction of rotation.

The direction of rotation of the direct-current positioning actuator is set to run from right

to left by the pre-set value of the relevant parameter in the control. Even so, the

direction of rotation must be checked before the machine is started. A possible

procedure is as follows:

First lock the sewing foot in the up position

(see Operating instructions, section 6.13).

DA220C control

–

The plugs of the set-point generator, motor, motor sensor and operating panel

(if present) must be plugged in (see section 6.5).

–

Unplug the 37-pin plug of the upper part of the machine.

–

Turn on the main switch.

The operating panel shows “Inf A5” or “A5”, which means that no valid Autoselect

resistance has been detected and the maximum speed will therefore be limited.

–

Press the pedal slightly forwards; the drive turns: check the direction of rotation.

–

If the direction of rotation of the drive is incorrect, parameter 161 at “technician

level” must be set to 1. See section 7.1.4.

–

Turn off the main switch.

–

Plug in the 37-pin plug of the upper part of the machine.