Miller SSW-2020ATT, Руководство пользователя

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OM-745 Page 10
SECTION 3 – OPERATION
3-1. Controls
802 751 / 200 264-A
1 Time Control
Squeeze Time (ST) - Use control to set
enough time for tongs to close and apply full
pressure to the work before weld amperage
starts. Push ST button, then use buttons 3,
2, 1 to select squeeze time from 0 to 9.99 se-
conds. Squeeze time begins when the Re-
mote Foot Switch or Start Switch is pressed.
Weld Time (WT) - Push WT button, then use
buttons 3, 2, 1 to select spot weld time from
0 to 9.99 seconds.
Weld time begins at the end of the squeeze
time cycle.
2
Weld Switch
Use control to check tong pressure and
alignment without weld amperage present at
the tongs. When the switch is in the Set Up
position, pressing the Remote Foot Switch
or Start Switch closes the tongs without
starting weld amperage. When the switch is
in the Weld position, tongs have weld amper-
age present after the squeeze time has
ended.
3 Weld Amperage Control
Turn clockwise to increase current. Chang-
ing the weld current value does not affect the
duty cycle rating. The scale is for reference
only.
4 Power/Pilot Light/Circuit Breaker
Switch
Use switch to turn On power and pilot light.
See Section 4-2 for circuit breaker operation.
5 Fuse F1
See Section 4-2.
6 Remote Foot Switch
Use remote foot switch to close tongs and
start squeeze time.
If switch is released before squeeze time
ends, the tongs open, and the unit resets for
another weld cycle.
If switch is held until squeeze time ends and
weld time starts, the switch may be released,
and the tongs will stay closed until weld time
ends.
If workpiece is to be left between tongs after
weld time ends, switch must be held for
whatever hold time is desired after welding
ends.
6
4
1
2
3
5
Second row of LCDs
displays squeeze time
set or weld time set.
First row of LCDs displays
actual time set.
ST WT
4 3 2 1