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

3
AUTOWELD “KAT” ® carriage
This manual covers the operating instructions of the following Gullco AutoWeld, Rigid and Flex
“KAT”
®
all position, variable speed travel carriages (* indicates voltage reference):
GK-200-RL*-A, GK-200-RM*-A, GK-200-RH*-A
GK-200-FL*-A, GK-200-FM*-A and GK-200-FH*-A
GENERAL DESCRIPTION
The Gullco “KAT”
®
is a heavy duty, all position travel carriage. It 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.
Safety is greatly enhanced by the use of Gullco’s low voltage (24 V), highly advanced control /
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 motor and
the control operate on 24 VDC, supplied by a power supply located within the casing of the “KAT”
®
carriage. Therefore, all operator interface devices (except the power on/off isolation switch) are
subjected to signal level voltages only. The microprocessor pulse width modulation motor control
offers operator interface of forward, stop, reverse and infinitely variable control of the speed, within
the range of the model, as well as an L.E.D. display indicating travel speed in either in/min. or
cm/min. The travel speed is electronically controlled using an optical tachometer located on the
back of the gear-motor. Through the use of this, closed loop, feedback circuitry, the motor control
can obtain accurate and constant speed control of the “KAT”
®
carriage when running in any plane,
regardless of the load (within the rating of the equipment).
The Gullco AutoWeld “KAT”
®
system combines
the above carriage with travel limit switches,
adjustable track actuators, Arc Signal Relay(s)
and an AutoWeld GSP micro-processor chip.
The Gullco GSP control with the AutoWeld micro-
processor chip allows the operator to select a
variety of multi-functional settings, which when
activated, will sequence the desired starting and
stopping of the weld arc signal in conjunction with
welding motion. The automated cycles can be
configured to provide automated cycles with
sequence functions such as stitch welding,
automatic return to park position, full speed to
weld start location etc. These versatile operator
selected settings are designed to allow various
semi and fully automatic cycles to be achieved to
suit job after job with the same, standard off-the-
shelf, piece of equipment.