Amada IS-300CA, Operation Manual, Page: 74 / 208

CHAPTER 3: USING PROGRAMMING FUNCTIONS
IS-300CA INVERTER POWER SUPPLY
3-44 990-418
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