Gullco GK-200-RLx-I - Manual (Page 5)

3
“KAT”
®
CARRIAGE INDEXING SYSTEM
This manual covers the operating instructions of the following Gullco “KAT”
®
carriage indexing
systems, using Rigid or Flex “KAT”
®
, all position, variable speed travel carriages (* indicates voltage
reference):
GK-200-RL*-I, GK-200-RM*-I, GK-200-RH*-I
GK-200-FL*-I, GK-200-FM*-I and GK-200-FH*-I
GENERAL DESCRIPTION
The Gullco “KAT”
®
indexing system is typically used to automate an overlay/surfacing process. The
automatic routine drives a motorized device (either the “KAT”
®
carriage or the motorized rack arm
†
),
back and forth between limit switches (cycling). Each time the cycling device reaches a limit switch
it pauses while the other motorized device is activated to carry the overlay/surfacing gun/torch a
preset distance in a preset direction (indexing). An “Arc Signal Relay” is supplied with the system to
provide integrated arc activation signals to the overlay/surfacing equipment. Two GSP controls,
each with dedicated microprocessor chips, are used to control the automatic, two axis indexing
system. One GSP control is set up to be the “Cycle Control” (master) and the other GSP control is
set up to be the “Index Control” (slave). Each control offers user programmable
parameters/variables to allow fine-tuning and functional control of the automatic cycle.
The Gullco “KAT”
®
indexing system comprises of a heavy duty, all position “KAT”
®
travel carriage
and a motorized rack arm.
The travel carriage is an electrically powered self-propelled carriage that travels in a forward or
reverse direction, at precisely controlled speeds, along a special track. The self-aligning wheel
system of the carriage grips the top and bottom of the track, enabling it to travel along any plane.
The adjustable wheel assembly keeps the carriage snug to the track, while allowing it to be easily
mounted and removed from the track at any point. The positive drive of the “KAT”
®
is obtained from
either a pinion that engages with the rack of the rigid track, or a uniquely designed sprocket that
engages with slots in the flex track. Both of these systems are driven by a low voltage permanent
magnet motor and gear-head power unit assembly.
The motorized rack arm consists of a rack arm driven through a motorized rack box. The rack arm
is basically a square profile arm with gear racking imbedded along its length. The rack arm is
guided through the motorized rack box by Nylastic glide bearings. A low voltage permanent magnet
motor and gear-head drive a pinion which engages with the rack of the arm, propelling the arm and
ultimately the overlay/surfacing gun/torch, in a straight line.
Safety is greatly enhanced by the use of Gullco’s low voltage (24 V), highly advanced controls and
power supply system that is available in three line voltage inputs, i.e. 42, 115 and 230 VAC, single
phase, 50/60 Hz, or any unregulated 24 VDC power supply at 220 watts of power. The motors and
the controls operate on 24 VDC, supplied by a power supply located within the casing of the “KAT”
®
†
This manual makes the assumption that the “KAT”
®
carriage provides the cyclic motion, while the
motorized rack box provides the indexing motion. See the diagrams under “Special Reverse Indexing
Configuration” in the Technical Manual for details of how to reverse/alternate this arrangement.