Operation Manual

10.6.4 Function of the additional thread tension depending on the stroke
adjustment (HP) and the Speedomat
Parameter Stroke adjustment (HP) max. Stroke adjustment by setting
adjustment via knee switch wheel when the HP-speed
of parameter F-117 is
reached (Speedomat)
F-197 = 0 0 0
F-197 = 1 1 0
F-197 = 2 0 (*) 1
F-197 = 3 1 1
(*) When the max. stroke adjustment (HP) is switched on via knee switch and the
HP-speed of parameter F-117 is reached by the “Speedomat”, the additional thread
tension i s switched on automatically.
1 = Additional thread tension is engaged (= mechanically closed)
0 = Additional thread tension is not engaged (= mechanically opened)
–
If the additional thread tension is closed, it remains closed during the stroke
adjustment.
–
When the machine is switched off, the previously set status of the additional thread
tension i s maintained via the net.
Basic adjustment in the control box for the automatic stepwise speed reduction
(Speedomat) by the setting wheel for the height of the alternating feeding stroke
Parameter 188
Step 01-21 Whole Speedomat range
Step 01-10 Maximum speed allowed, parameter F-111 = 3.500 min
-1
Step 11-18 Linear stepwise lowering of the maximum speed (Speedomat)
Step 19-21 Maximum speed allowed, parameter F-117 = 2.000 min
-1
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