Brother BAS-311H Service Manual page 33

＜Pneumatic work clamp specifications, two-pedal foot switch standard operations＞
Two-pedal foot switch operation is set when memory switch No. 070 is set to "2".
Operating mode
Work clamp operation
Work clamp lifts
automatically and drops
when the work clamp switch
is depressed.
Work clamp rises while work
clamp switch is depressed.
Work clamp switch
1st step : Both left and right
work clamp drop
2nd step : Intermittent
presser foot drops
Lifting is simultaneous
Work clamp drop sequence
at work clamp switch 1st
and 2nd step alternates
each time an article is sewn.
Initially right → left
＜Pneumatic work clamp specifications, two-pedal foot switch sequence operations＞
Operating mode
Work clamp operation
When start switch is
depressed, work clamp
drops → sewing starts
Lifts in reverse order using
work clamp switch
Work clamp switch
Left (right) work clamp →
Right (left) work clamp →
Both work clamps lift
After home
After
position
sewing start
detection
Automatic
Automatic
lift
lift
Lowered
Automatic
lift
Lowered
Lowered
Lowered
Lowered
Automatic
Automatic
lift
lift
Lowered
Automatic
lift
Lowered
Lowered
Automatic
Automatic
lift
lift
Lowered
Automatic
lift
Lowered
Lowered
After home
After
position
sewing start
detection
Automatic
Automatic
lift
lift
Lowered
Automatic
lift
Lowered
Lowered
Automatic
Automatic
lift
lift
Lowered
Automatic
lift
Lowered
Lowered
BAS-311H
Memory switch setting
002
Work clamp
lowering sequence
selection
0 : Left and right
simultaneously
1 : Left → Right
2 : Right → Left
-
-
-
Memory switch setting
002
Work clamp drop
sequence selection
0 : Left and right
simultaneously
1 : Left → Right
2 : Right → Left
Work clamp drop
sequence selection
0 : Left and right
simultaneously
1 : Left → Right
2 : Right → Left
3. FUNCTION SETTINGS
072 057
1 ON
1 ON
1 OFF
1 OFF
2 -
3 ON
3 ON
3 OFF
3 OFF
4 ON
4 ON
4 OFF
4 OFF
072 057
5 ON
5 ON
5 OFF
5 OFF
6 ON
6 ON
6 OFF
6 OFF
001
2
0
2
0
-
2
0
2
0
2
0
2
0
001
2
0
2
0
2
0
2
0
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