Daihen Welbee WB-A350P, Owner'S Manual

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W
ELDING
R
ESULT
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ONTROL
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UNCTION
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DMINISTRATOR
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UNCTIONS
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HAPTER
7
7-6
7.2.2.2 Total welding time
The total welding time is controlled according to the setting range.
• P20 (Cumulative total welding time)
Every interval from the start of current flowing triggered by the start signal ON to the stop of output
triggered by the start signal OFF is counted and accumulated as welding time.
The setting range of count value is between 0 and 999 minutes. The count value will be cleared according
to the "P22" setting. (If continuous operation is enabled, the value will be cleared when exceeding 999 and
returns to 0.)
• P21 (Target total welding time)
Select the target value of total welding time in the range from 0 to 999 minutes.
When the "P20" count value reaches the total welding time specified here, an alarm displays indicating
that the target is achieved. ( 7.2.2.4
-
Alarm indication when target is achieved)
• P22 (Operation at the time when the target total welding time is achieved)
Select the operation from 0 to 5 for the time when the target specified for "P21" is achieved.
The set values and operations when the target is achieved are the same as those of the "P12" function. "P12
(Operation at the time when the target number of welding points is achieved)" ( 7.2.2.1
-
Number of
welding point)
7.2.2.3 Welding monitor
Average current/voltage during welding is monitored. When it exceeds the range specified here, an
alarm displays and the output stops. By setting the internal functions, it is possible to output an alarm
signal to the external output terminal if the setting range is exceeded.
(
6.10
-
Setting Internal Functions
)
• P30 (Max. fluctuation value of average value monitor)
If the average current/voltage (average per second) becomes outside the allowable tolerance range
specified in "P30" to "P34", an alarm is displayed indicating the following contents. ( 7.2.2.5
-
Alarm
indication at the time of WARNING detection (Welding Monitor "P35" "P36"))
• P31 (Current tolerance (+))
P32 (Current tolerance (-))
Set the allowable tolerance range from 0 to 100% corresponding to the set value of welding current.
Example: Setting example of "P31" and "P32" when the set value of welding current is 200 A and that of
welding voltage is 20 V
Operation
Set value
0 1 2 3 4 5
The count value is cleared when the target is achieved (*1) Yes No Yes No No No
Operation is continued after the target is achieved (*2) Enable Enable Enable Enable Disabled Disabled
The count value is cleared when the power is turned on Yes Yes No No Yes No
*1: When an alarm is displayed, pressing any key of the operation panel can also clear the count value.
*2: If "Disabled" is selected and the target is achieved, next welding cannot start until any key on the operation panel
is pressed.
If the current is out of the range : Difference (A) between the set value and the average value of welding
current
If the voltage is out of the range : Difference (V) the average value of welding voltage
If both the current and voltage are out of
the range : Difference of either value which is more largely out of the range than the
other
Setting P31 (Current tolerance (+)) to "10" % (= 220 A)
Setting P32 (Current tolerance (-)) to "20" % (= 160 A)
In the example above, the allowable tolerance range of welding current will be 160 to 220 A.