Amada S-2200CA, Operation Manual

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CHAPTER 3: USING PROGRAMMING FUNCTIONS
IS-2200CA/4500CA INVERTER POWER SUPPLY
3-44 990-412
Weld 1:2kA Weld 2:2kA Weld 3:2.5kA Weld 4:3.0kA Weld 5:3.5kA Weld 6:4.0kA
<---------
STEP1
----------> <------------------------------
STEP2
----------------------------->
START ON STEP #
The counting of welds starts from the STEP set here. For example, if you select START ON
STEP #3 as shown above, welds will be counted from the first weld in STEP3 , even if
welding for the first time. Further, the welding current will be increased (or reduced) by the
extent you have set this value for
STEP3
. Set the desired
STEP
number. 1–9 for
VALVE1
and
VALVE2 respectively.
STEP 1–9. Set the welding current step-up ratio ( RATIO ) and the number of welds ( COUNT )
for each
STEP
. The sequence will proceed to the next
STEP
when the set number of welds is
reached.
VALVE # Make settings for (a) and (b) above for each valve number. Change the number to set
the schedule for each valve.
NOTE: Upper/Lower limit judgment value when STEPPER MODE is set to ON
The upper/lower limit judgment value set here is for the current when a welding is performed,
not for the initial setting. Therefore, when STEPPER MODE is set to ON to perform step-up
(step-down) for the initial setting, the upper/lower limit judgment value is stepped up or down
automatically.
RATIO has an effect on HEAT only. Fixed for UF/DL . When the HEAT value multiplied by
RATIO
falls below the
UF/DL
value, an error occurs.
Example: When the current is set to 2 kA, H; 2.2 kA, L; 1.8 kA . When the step becomes
150% , H and L become as follows.
H:
2.2 x 1.5 = 3.3 kA
L: 1.8 x 1.5 = 2.7 kA
c. VALVE #
Make settings for (a) and (b) above for each valve number. Change the number to set the
schedule for each valve.
NOTE : Upper/Lower limit judgment value when STEPPER MODE is not OFF. The
upper/lower limit judgment value set here is for the current when a welding is performed, not
for the initial setting.
Therefore, when STEPPER MODE is not OFF to perform step-up (-down) for the initial
setting, the upper/lower limit judgment value is stepped up or down automatically.
RATIO has an effect on HEAT only. Fixed for UF/DL.
When the HEAT value multiplied by RATIO falls below the UF/DL value, an error occurs.
Example) When the current is set to 2kA, HIGH; 2.2kA, LOW; 1.8kA.
When the step becomes 150%, HIGH and LOW become as follows.
HIGH: 2.2 x 1.5 = 3.3kA
LOW: 1.8 x 1.5 = 2.7kA