Miyachi Unitek ISA Series, Руководство оператора

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CHAPTER 3: USING ISA SERIES PROGRAMMING FUNCTIONS
ISA-4001CR INVERTER POWER SUPPLY
3
-8 990-364
Monitor Set Screen
This screen is used to establish limits
beyond which alarm messages will be
generated.
SCHEDULE #
–
This entry is used to
designate the Schedule number for which
limits are to be set.

MONITOR SET SCHEDULE # 001
NO CURRENT TIME 99 ms WELD COUNT 0000
CURRENT MONITOR NUMBER 1
CURR VOLT POWER PULSE
WELD 1 HIGH 99.9 kA 9.99 V 99.9 kW 100%
WELD 1 LOW 00.0 kA 0.00 V 00.0 kW
WELD 2 HIGH 99.9 kA 9.99 V 99.9 kW 100%
WELD 2 LOW 00.0 kA 0.00 V 00.0 kW
NOTE:
NO CURRENT TIME
,
WELD COUNT
, and
CURRENT MONITOR NUMBER
values will be the same
for all schedules
NO CURRENT TIME
– To prevent a
NO CURRENT
error from occurring when there is a very long upslope
time, the
NO CURRENT TIME
can be set to effectively blank the monitor from looking for current during
that time set. For example, if 3 ms is set, no error signal will occur for up to 3 ms of no current.
However, an error will be detected if there is no current for 4 ms or more. The setting is application-
dependent and should be set to the minimum permitted by your application. The range is 1 to 99 ms. A
setting of 0 will provide 130 ms of
NO CURRENT TIME
.
WELD COUNT
–
This entry is used to set the number of counts that should occur during the welding
process. This count is compared with the count in the Monitor screen. After a weld sequence, if the
count on the Monitor screen is less than the count that was set on the Monitor Set screen, the Power
Supply will produce a
Count Error
signal.
CURRENT MONITOR NUMBER
–
This sets
WE 1
or
WE 2
for display on the Monitor Unit (MA-628A).
1
selects the value of Weld 1;
2
selects the value of weld 2.
NOTE:
Refer to table 4-1 for error messages.
CURRENT LOW/HIGH
–
These entries are used to set the low and high limit for welding current of Weld
1 and Weld 2. If the current value exceeds these limits, a current monitor error will occur. Set to 0 to
turn off function.
VOLT LOW/HIGH
–
These entries are used to set the low and high limit for the secondary voltage of Weld
1 and Weld 2. If the voltage value exceeds these limits, a voltage monitor error will occur. Set to 0 to
turn off function.
POWER LOW/HIGH
–
These entries are used to set the low and high limit for the power of Weld 1 and
Weld 2. If the power value exceeds these limits, a power monitor error will occur. Set to
0
to turn off
function.
PULSE % HIGH
–
These entries are used to set the high limit for the pulse width of Weld 1 and Weld 2.
If the pulse width value exceeds this limit, a pulse width monitor error will occur. Set to
0
to turn off
function.