BUG-O Systems Modular Drive System - Manual (Page 14)

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SPEED CONTROL: Sets the tractor speed from 2-120 in/min (5.1-304.8 cm/min).
CARRIAGE TRAVEL SWITCH: Provides FORWARD/STOP/REVERSE direction control.
Stop at limit in direction of travel & Cycle between limits can be controlled
with the installation of the MDS-1055 Universal Limit Kit. (Ref to pg. 38)
DIGITAL READOUT: The display is dual function.
a) PRESET SPEED - Displayed when the CARRIAGE TRAVEL SWITCH is OFF or motion
is halted by a motor overload condition.
b) MEASURED SPEED - Displayed when power is applied to the motor.
(This will be the same as the Preset Speed.)
Factory settings of 120 Volt machines are set to in/min, 240 and 42 Volt machines are set cm/min.
WELD CONTACT: Opens/closes a pair of independent 1 Amp contacts (pins A & B and C & D) at the weld
contactor receptacle.
NOTE: A safety interlock will automatically open the weld contacts if the motor overload protection halts ma-
chine motion. Clear the overload by turning the carriage travel switch to OFF. Resetting the overload
fault will not cause the contacts to automatically reclose. Use the weld contact switch to restart the
welder plasma unit after clearing the overload.
REPLACEMENT POTS AND SWITCHES
CARRIAGE TRAVEL:
Switch and Spacer MDS-1112
Black Pointer Knob BUG-9694
SPEED CONTROL:
10 K Ω Pot, 3-3/4 turn PCB-1026
Black Knob MDS-1018
Knob Seal Nut MDS-1046
WELD CONTACT:
Switch and Spacer MDS-1115
Toggle Switch Boot MDS-1047
MDS-1002 STRAIGHT MODULE
The MDS-1002 Straight Module provides direction and speed control for continuous cutting or welding.
CARRIAGE TRAVEL SWITCH
WELD CONTACT
(PLASMA)
DIGITAL READOUT
SPEED CONTROL