Amada S-2200CA, Operation Manual

Page: 94 / 210

CHAPTER 3: USING PROGRAMMING FUNCTIONS
IS-2200CA/4500CA INVERTER POWER SUPPLY
3-40 990-412
For example, if you set the number of welds to 5 from the programmable logic controller, select
“
5 ” for PRESET COUNT as well.
This function can be turned on or off through
WELD2 STOP/WELD COUNT
on the
MODE
SELECT
screen. To clear the count error signal, you need to input the weld count signal again
or add required number of welds to make up for insufficiency. The count error signal is not
cleared if the error reset signal is input. Also, when required number of welds are added to make
up for insufficiency, the count error signal is output until the insufficient number of welds is
complete.
NOTE: OFF/Off time and WELD COUNT do not work simultaneously. When WELD COUNT
is set, OFF is invalid.
b. NO CURRENT TIME
The absence of welding current will not be detected as a no-current or no-voltage error (see
Chapter 5, Troubleshooting ) as long as the absence lasts for a period within the time set here.
For example, if you select 3ms, the absence of current will not be detected as an error as long as
it lasts no more than 3ms. An absence of current will be detected as an error if it lasts for 4ms
or more.
At this time, the
TROUBLE
lamp lights up. When the program unit is connected, the fault code
is displayed on the monitor. COOL , HOLD , OFF , and INT times are not included in the time for
the no-current to be detected.
c. NO CURRENT LEVEL
d. NO VOLTAGE LEVEL
Set the current or voltage level for determining the absence of current or voltage as a no-current
or no-voltage error. The
TROUBLE lamp will light up, and operation will stop if the monitored
current or voltage falls below the level set here.
In the case of primary current control, supplying current with the welding transformer’s
secondary side open will cause an excitation current to flow through the primary side. Set the
current level slightly higher than the monitored current.
NOTE: No judgment as to no-current or no-voltage error will be made if you select 00.0kA/0.00
V . If the toroidal coil and the voltage detecting cable are disconnected in the second control,
excessive current may flow.
Weld count
Count error
Number of welds
４
５ １ ２ ３
４
５ １ ２ ３
In the event of error
Normal operation