MM-400A
8. Operation Screens
8-90
The displacement level 1 to 3 outputs “DIST LEV1 to 3” are output when
moving away from the position set to 0 mm set in advance 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.
By applying force without setting workpieces, perform a reset with a reference
position (0 mm).
When using a Mitutoyo’s, HEIDENHAIN’s, or Ono Sokki’s displacement sensor,
the displacement position cannot be held with the power supply of the
MM-400A turned off. Reset displacement after turning on the power supply of
the MM-400A.
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.”
• Measures the moving amount from the position set to 0 mm in advance as
“DIST INITIAL” (B) at the timing of WE1 current start (A).
• Measures the moving amount from the position set to 0 mm in advance as
“DIST PULSE1” (D) at the timing of WE2 current start (C).
• Measures the moving amount from the position set to 0 mm in advance as
“DIST FINAL” (F) at the timing of the elapse of the delay time (E).
For the trigger, refer to Chapter 8, “l-1. BASIC SETUP (1) Screen.”
(Caution) When measuring displacement (at the start of current, at the start of
the external input signal “DIST TRIGGER”, and constantly) by changing
MEASUREMENT MODE to REFERENCE, displacement is reset (0 mm).
ABSOLUTE2: The position of 0 mm is set in advance and the displacement is
measured.
-
+
F
B
D
C
A
0
E
W
E3CO2WE2CO1WE1
Displacement
Welding current
Judgment output
F
D
B
-
+
0
E
C
A
WE3CO2WE2CO1WE1
Displacement
Welding current
Judgment output
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