MM-400A
8. Operation Screens
8-79
3) When force or external is first measured
a: WELD b: COOL c: Current flow waiting time of 500 ms
In the 3-step welding, the first to third steps are measured and then ended. In
the 4-step welding, the first to fourth steps are measured and then ended.
When 500 ms elapses, a measurement of a single sequence ends.
(Note) For measurable time, refer to “Measurable time of all-pulse
measurement for each mode.”
For FINAL DELAY TIME of DISPLACEMENT, refer to Chapter 8, “m-1.
EXTEND SETUP (1) Screen.”
For DELAY TIME of FORCE, refer to Chapter 8, “m-4. EXTEND SETUP (4)
Screen.”
For DELAY TIME of EXTERNAL, refer to Chapter 8, “m-6. EXTEND SETUP
(6) Screen.”
• NO COOL (2
nd
step measurement)
Set a measurement start current in PULSE 2 TRIG LEVEL. The instrument
starts measurement determining the point in time where the start current is
exceeded as the measurement start point. Measurement is possible only if
the current at the second step is larger than that at the first step.
PULSE 2 TRIG LEVEL
Welding current
2
nd
step
measurement
• ALL PULSE (SET2)
Used when current is passed several times in a single welding sequence
and but the number is decided. This setting is ALL PULSE (SET) with the
delay time setting, and measurement is continued when the next current
flows within the delay time.
The instrument makes measurement of a number of times specified in PULSE
No. in a single welding sequence and then continues measurement when the
next current flows within the delay time.
If the number of current flow times is less than the times specified by PULSE
No., the impulse error occurs in the time that current is not passed after the
maximum current measurement time elapses.
In ALL PULSE (SET2), set PULSE No. to a value less than or equal to the
minimum number of current flow times in a single welding sequence.
The measurement schedule and judgment schedule are the same as those of
ALL PULSE (SET). Set the number of measurements.
a
b
a
b
a
a
b
a
b
a
b
a
c
c
c
c
c
c
c
Measurable time
Measurable time
Pulse 4Pulse 3 Pulse 3Pulse 2 Pulse 2Pulse 1 Pulse 1
Force, external
Measurement end Measurement end
To Next Page
Loading...
