Amada Miyachi Unitek STA-100A, Руководство по эксплуатации, Страница: 43 / 154

CHAPTER 3: USING STA SERIES CONTROL FUNCTIONS
STA SERIES AC CONTROLS
990-351 3-15

When
AUTO RESET
is
ON
, the error signal will light the Error LED indicator but this error signal
will be reset by the next
Start
signal. If the
ERROR OUTPUT
function is turned on, a Fault output
will occur.

If
AUTO RESET
is
OFF,
the error signal must be overridden by the operator pressing the
RESET
button on the control panel, or by the application of an
Error Reset
signal to the I/O connector. If
ERROR OUTPUT
function is turned on, a Fault output will occur. This is the default setting.
ERROR OUTPUT
– This control turns on and off the
Error Output
signal. It is programmable as either
ON
or
OFF
by placing the cursor at the first character of the parameter’s value and using the
DATA +/–
key to
toggle between the two states. The default is
ON
. In the
ON
state, the
Error Output
signal remains on
either until an
Error Reset
signal occurs or, in the case of a minor error, until the next
Start
signal or an
Error Reset
signal occurs. In the
OFF
state the
Error Output
signal remains
OFF
.
SET DEFAULTS
– Placing the cursor over the

symbol next to
SET DEFAULTS
and pressing the
DATA +
pushbutton will cause the factory-set defaults to be restored to the software.
MASTER CNTL
– This selects the device that will be able to change the programming on the unit. If
LOCAL
is selected, (the default) the operator will be able to program the unit normally through the
buttons on the unit’s panel. If
HOST
is set, the buttons on the panel will be able to display but not change
any values; only the host device will have the ability to program the unit, through the communications
software. The only exception is that
MASTER CNTL
itself may be changed to
LOCAL
using the panel
buttons, even though it has been previously set to
HOST
.
UNIT ADDRESS
– This sets the unit’s RS-485 address. Each control on a single RS-485 loop must have
a unique unit address. Allowable values are
01 – 30
, default is
01
.
Screen 1
 – Highlight Screen 1 and push the
DATA +
button to return to
System Values Screen 1
.
More

– Highlight
MORE
to go to
System Values Screen 3.
System Values Screen 3
RETRACTION
– This switches the Electrode
Retraction mode between
MAINTAINED
and
PULSED
. The
MAINTAINED
mode causes the
retraction output to follow the input switch.
When the switch is closed, power is supplied to
the retraction output. This is the non-retracted
state. Welding is allowed in this state.
SYSTEM VALUES SCREEN 3
RETRACTION=MAINTAINED DIFF.PRESSURE=ON
PRESSURE
SWITCH=OFF BACK PRESSURE=10
FORCE CALIBRATION

OUTPUT FORCE=F1
MONITORED VOLTS=RMS
MONITORED TIME=W1/W2
Screen 2

Welding is not allowed when the weldhead is retracted. The
PULSED
mode requires the input switch
to be toggled before the output changes state. Welding is not allowed when the weldhead is retracted.