Brother S-7200B Service Manual page 20

3. FUNCTION SETTINGS (OPERATION PANEL)
Function No. 70 − 72
No. Initial value
70
6
(NOTE 21)
71
0 (needles)
(NOTE 22)
72 10
(NOTE 22) (seconds)
(NOTE 21) The factory default setting is for no output, so the output must be set. Output is from pins 2–4 of connector CN15
on the control circuit board.
(NOTE 22) Setting is enabled when Function No. 70 is set to "0".
<When set to puller>
・ When the sewing machine is stopped, the puller is lowered after 10 seconds in synchronization with the automatic presser
foot lifter.
・ During sewing, the puller is only raised when the reverse mechanism operates.
・ The time of 10 seconds can be changed by setting Function No. 72.
・ Function No. 71 can be used to set the number of stitches until the puller is lowered after sewing starts. If the puller is
raised (in synchronization with the automatic presser foot lifter) while the sewing machine is stopped after thread trimming,
this operation occurs.
<When set to needle cooler (synchronized output during operation)>
・ Output is synchronized with motor operation.
Motor
Option
<When set to air saving>
・ Output only occurs at the sewing start and the sewing end. A material edge sensor (S2) is required for output at the
sewing end.
・ Function No. 108 is used to set the number of stitches at the sewing start. Output only occurs while the number of stitches
set are being sewed after sewing starts.
・ The number of stitches at the sewing end is set by fixed stitch number E at the operation panel. Output occurs when the
edge of the material is detected.
・ The delay time after thread trimming until output turns off is set using Function No. 112. If the needle stops in the down
position after the edge of the material is detected, output turns off when the needle stops.
Motor
Option
Needle up signal
Material edge sensor signal
13
Setting range
Option output setting
0: Puller
1: Needle cooler (synchronized output during operation)
2: Air saving
0 – 6
3: Condense
4: Chain stitch thread trimming (thread wiping)
5: Pneumatic wiper
6: No output
Number of stitches from sewing start until puller is lowered
0 – 99
0: Synchronized with presser foot lifter operation
(needles)
1 − 99: Puller is lowered after the set number of stitches is sewn
5 – 30
Time until puller is lowered
(seconds)
Setting details
Fixed stitch number E
S-7200B
2252M
2253M