MM-400A
8. Operation Screens
8-89
(1) MEASUREMENT MODE
Select the displacement measurement system from the following:
REFERENCE: The displacement is reset (0 mm) at the start of current or the
external input signal “DIST TRIGGER” and the measurement is started.
In “DIST INITIAL”, “DIST PULSE1”, “DIST PULSE2”, and “DIST FINAL”, the
moving amount from the position set to 0 mm at the start of current or the
external input signal “DIST TRIGGER” is measured.
The displacement level 1 to 3 outputs “DIST LEV1 to 3” are output when
moving from the position set to 0 mm at the start of current or the external
input signal “DIST TRIGGER” is output.
In the level output, signals are output when “measured value ≥ level output
value” is satisfied in plus (+) setting and “measured value ≤ level output value”
is satisfied in minus (-) setting.
When setting TRIGGER to “CURRENT”, INITIAL MEASUREMENT to
“CURRENT START”, MEAS AFTER PULSE to “CURRENT START”, and
FINAL MEASUREMENT to “DELAY TIME” to measure “DIST INITIAL”, “DIST
PULSE1” and “DIST FINAL.”
• Performs a reset (0 mm) of displacement at the timing of WE1 current start
(A).
• Measures the position of 0 mm as “DIST INITIAL” (B) at the timing of WE1
current start (A). (To measure “DIST INITIAL”, use any of ABSOLUTE1 to
ABSOLUTE4.)
• Measures the moving amount from the position set to 0 mm at the start of
current as “DIST PULSE1” (D) at the timing of WE2 current start (C).
• Measures the moving amount from the position set to 0 mm at the start of
current as “DIST FINAL” (F) at the timing of the elapse of the delay time (E).
ABSOLUTE1: The position of 0 mm is set in advance and the displacement is
measured.
In “DIST INITIAL”, “DIST PULSE1”, “DIST PULSE2”, and “DIST FINAL”, the
moving amount from the position set to 0 mm set in advance is measured.
-
+
0 B
F
D
C
A
E
WE3CO2WE2CO1WE1
Displacement
Welding current
Judgment output
F
D
C
A
-
+
0 B
E
WE3CO2WE2CO1WE1
Displacement
Welding current
Judgment output
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