ProArc PT-502, Owner'S Manual

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5
2.3 OPERATION

WORK / OFF / MOVE Toggle Switch (SW2)
WORK
：
Enable the system in “WORK procedure” standby. Press/release the footswitch to start “WORK
procedure”. Faceplate rotates according to parameter setting (RPM and welding angle)
OFF
：
Reset error and stop work procedure.
MOVE
：
Enable the system in “MOVE” procedure standby. Press the footswitch to start the rotation, and
release footswitch to stop the rotation. Rotation speed varies according to parameter

NORMAL / RAPID Toggle Switch (SW3)
NORMAL
：
Faceplate rotation speed varies according RPM setting.
RAPID
：
Faceplate rotates with maximum speed.

WELD / TEST Toggle Switch (SW4)
WELD
：
Welder output (P2) will be enabled when faceplate start rotating in either WORK or MOVE (SW2)
procedure.
TEST
：
Welder output (P2) is disable in WORK/MOVE procedure.
Note
：
Welder output (P2) Type
：
Relay dry contact.

STOP Button
Press to stop the all control. Rotate CW/Pull to reset.

Homing Sequence (Option)
Homing sequence activates automatically when below condition are met.
A. Right after placing WORK / MOVE toggle switch (SW2) in WORK position.
B. 2 seconds after end of “WORK procedure”.
C. Flipping Forward/Reverse (SW1) switch in “WORK procedure” standby.
D. Reset the STOP button in “WORK procedure” standby.
Note
：
Homing sequence is divided into 2 stages. Faceplate first rotates in half of maximum speed until
home sensor is triggered and stops. Then faceplate rotates according to RPM rotation speed
setting to trigger the home sensor again. Problem may rise in second stage when RPM rotation
speed is adjusted too small.
Warning
：
Homing sequence is a semi-automatic process that activates when above conditions
are met. Operator caution is advised.