Efka AB620A5035, Operating Manual, Page: 20 / 104

- AB620A5035
- 20 -
6.9.1 Setting the reference position (Parameter 170)
The angular positions necessary on the machine e.g. “needle down position“ or “thread lever up position“ are
stored in the control. A reference position is needed in order to establish a relationship between position
transmitter information and actual mechanical position.
The reference position must be set:

For initial operation

After replacing the motor
Setting the reference position on the control

Input code number and select parameter 170 !

Press the E key

Display
Sr1 _

Press the >> key

Display P o u
(character “o” rotating) *
1

Turn hand wheel until rotating
character o goes off on the display.

Display P o
By turning the hand wheel, set the
needle to the bottom dead center or
the needle point to the height of the
needle plate in the direction of rotation
of the motor shaft, while needle is
moving downward.

Configuration of the zero point of the machine

Press the P key once

Actual parameter number 170 is displayed *
2
or

Press the P key twice

Exit programming at the technician level.
Setting the reference position on the V810 control panel

Input code number and select parameter 170 !

Press the E key

Display
[o]

Press the >> key

Display P o u (character o rotating) *
1
Turn hand wheel until rotating
character
o goes off on the display.

Display PoS 0

Set the needle to the bottom dead
center by turning the hand wheel.

Configuration of the zero point of the machine

Press the P key once

Actual parameter number 170 is displayed *
2
or

Press the P key twice

Exit programming at the technician level.
Setting the reference position on the V820 control panel

Input code number and select parameter 170 !

Press the E key

Display
F-170 Sr1 [o]

Press the >> F2 *
3

Display P o u (character o rotating) *
1
Turn hand wheel until rotating character
o goes off on the display.

Display PoS 0

Set the needle to the bottom dead
center by turning the hand wheel.

Configuration of the zero point of the machine

Press the P key once

Actual parameter number 170 is displayed * 2
or

Press the P key twice

Exit programming at the technician level.
*
1
) If P 0 or Pos 0 is displayed, the reference position is already set. To repeat the setting the power must be switched off
and the code number reentered.
*
2
) The next parameter to be set can be selected.
*
3
) The button >>(F2) is the farthest button to the right on the control part.
If error message A3 (reference position not set) appears, repeat the above setting sequence.