Instruction manual

- DA321G5321
- 45 -
6.19.2 Analogous speed limitation
The maximum speed can be limited by an analog voltage on input A/3. The analog voltage is generated by a
potentiometer connected as a voltage splitter. If no potentiometer is connected, the maximum voltage is applied
to the input. A potentiometer for speed limitation on the controller is also possible.
6.19.3 Analog speed limitation with Speedomat
The Speedomat function permits speed limitation depending on the configured lift height of the sewing foot (21
steps). The current value of the lift height is given to the controller by the position of a potentiometer (10k ) with
a 60° turning angle that is coupled to the lift shaft.
The maximum rotational angle of the lift shaft is 48° and move the potentiometer over a range of 9k (nmax =
4.5 V on socket A/3) to 1k (nlim = 0.5 V on socket A/3).
For the connection options of the potentiometer, see section "Connection diagram".
Function with or without control panel
Parameter
Maximum speed
High lift walking speed
High lift-dependent speed setting
(n2)
(n10)
(hP)
111
117
188
 It is possible to program the assignment of the speed limitation to the 21 high lift levels.
 Minimum high lift = maximum speed (n2)
 Maximum high lift = minimum speed (n10)
Graduation of the examples below is as follows:
Speed
3500 X X X X X upper speed break point
3200 X
3110 X
3020 X
2930 X
2840 X
2740 ----------------------------------------------------------- X
2650 X
2560 X
2470 X
2380 X
2280 X
2190 X
2100 X
2000 lower speed break point X X X
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 stages
Display example for parameter 188 on the V820/V850 control panel:

ZZZZ XX AB YY
Meaning of the values shown in the display
XX

Display of the level up to which the maximum speed is effective (upper break point).
YY

Display of the level from which the maximum speed is effective (lower break point).
AB

Display of the level set on the potentiometer.
ZZZZ

Speed resulting from the set high lift level.
EEEE

Outside of the speed range.
6.19.4 Setting the Speed Limitation Depending on High Lift with the V820/V850
Control Panel
 Determine maximum speed (n2) using parameter 111!
 Determine minimum speed (n10) using parameter 117!
 Call parameter 188!
E
Press the E key!

F-188 hP [ o ]