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PF321A6012
- 31 -
Upon pressing the
key,
Start Backtack/ Stitch
condensing On
Start Backtack/ Stitch
condensing Off
End backtack / Stitch
condensing On
End Backtack/ Stitch
condensing Off
Before the start of
the seam
No backtack / stitch
condensing
Backtack/Stitch
Condensing
------
------
in the seam
------
------
No backtack / stitch
condensing
Backtack/Stitch
Condensing
The double backtack is performed in the above cases.
7.4.11 Holding Power of the Stitch Regulator Solenoid
Function
with
or
without
control panel
Parameter
Time of full power
Holding Power of the Stitch Regulator Solenoid
Upper limit stitch regulator ON period
(t10)
(t11)
(EV-)
212
213
255
The stitch regulator solenoid is engaged by full power. Then the system switches automatically to partial power
in order to reduce the load for the control and the connected stitch regulator solenoid. Set the duration of full
power using parameter
212
and the partial holding power using parameter
213
.
A
TTENTION
If the holding power is set too high, the solenoid and the control may be permanently damaged.
Please observe the permissible duty ratio (ED) of the solenoid and set the appropriate value
according to the table below.
Value
Duty ratio (ED)
Effect
1
100
1 %
100 %
low holding power
high holding power (full power)
7.5 Reverse motor rotation
Function
with
or
without
control panel
Parameter
Positioning speed
Reversing angle
Switch-on delay of reverse motor rotation
Reverse motor rotation On/Off
(n1)
(ird)
(drd)
(Frd)
110
180
181
182
The function "reverse motor rotation" is performed after trimming. When the stop position is reached, the drive
stops for the duration of the switch-on delay of reverse motor rotation. Then it runs in reverse direction at
positioning speed according to the set degrees.
7.6 Machine run blockage
A
TTENTION
This is not a safety function. The line voltage must still be switched off during maintenance and
repair work.
The function “machine run blockage” is enabled by connecting a switch to socket ST2, depending on the pre-
selection of parameters
240...249
. When using a V810 / V820 / V850 control panel, an acoustic signal can be
switched on and/or off by means of parameter
127
.
Содержание DC 1550
Страница 51: ... PF321A6012 51 For your notes ...