I NTERLOCK A CTIVATE /D EACTIVATE
The safety circuit is set up so that the drive will not activate without the internal interlock
being activated. The “Green” double push button releases the drive interlock and allows the
drive to operate.
The interlock resets on power loss and must be reactivated when power is reconnected.
The interlock can be deactivated by pressing the E-Stop Button or by turning the disconnect
to off position. The safety circuit is set up so that the drive will not activate without the internal
interlock being activated.
P OWER D ISCONNECT S WITCH
This switch controls the main power to the Liberty Weldcell.
When the switch is in the “0” or "OFF" position, the
main power to the unit is disconnected.
When in the “1” or "ON" position, main power is
reaching the unit and it can be started.
Under normal operating conditions, the unit will not
start when the green "START" push button is
depressed if the disconnect is in the "0" or "OFF"
position.
This switch also provides a means to lock out the
switch using a small padlock thus preventing
accidental power up.
This is an interlocking disconnect; meaning, the door
to the electrical box will not open if the switch is in the
"ON" position.
When dial is in:
“0” position — all main power to the unit is OFF
“1” position — the unit is powered up and ready for operation, the unit is ON
CAUTION:
Prior to performing maintenance always use a meter to confirm the
power source is locked out.
Copyright © Clean Air Industries , Inc.
Liberty WeldCell User Manual, August 2023
Page 21 of 66
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