Tweco SC10 - Manual (Page 15)

Manual 0-2479 2-1 INTRODUCTION & DESCRIPTION
SECTION 2:
INTRODUCTION &
DESCRIPTION
2.01 Scope of Manual
This manual contains descriptions, operating instructions
and maintenance procedures for the SC10 Standoff Con-
trol Accessory. Service of this equipment is restricted to
properly trained personnel; unqualified personnel are
strictly cautioned against attempting repairs or adjust-
ments not covered in this manual, at the risk of voiding
the Warranty.
Read this manual thoroughly. A complete understand-
ing of the characteristics and capabilities of this equip-
ment will assure the dependable operation for which it
was designed.
2.02 General Description
The SC10 Standoff Control Accessory extends the neces-
sary system controls away from the power supply and is
an accessory for use with standard machine torch sys-
tems.
The SC10 Standoff Control is designed to be used with
the RC6010 Remote Control. The Standoff Control is me-
chanically mated with the Remote Control, either top or
bottom, and electrically connects to the Remote Control
through a 34 circuit ribbon cable from which it receives
bias power (+48 vdc), torch voltage signal (0-12 vdc = 0-
200 arc volts) and sends and receives power supply and
CNC control signals such as start, arc transfer (OK-To-
Move) and standoff inhibit (CSD).
The Standoff Control operates the torch lifter motor as-
sembly to find height, regulate height and retract at end
of cut. Height is regulated by comparing the torch arc
voltage with a preset reference voltage (ARC VOLTS con-
trol) and using the resulting error voltage to raise and
lower the torch lifter motor.
A-00686
PLA SM A O N
ARC VOLTS RE MO TE ST AN DO FF CO NT RO L
T.H .C. A CTIV E
PIER CE HT (i nche s)
0.1 0.3
0.4
0.5
0.2
END OF C UT RET RAC T (% )
0
25
75
100
UP
DN
TOR CH TORCH
MO DE MODE
LIFT ER LIFTER
SPE ED SPEED
PIER CE DEL AY (s ec)
0.5
1
2 3
0.75 0.25
0.1
AUTO HT FIND HT
HI
LO
Figure 2-1 SC10 Standoff Control
The SC10 Standoff Control must be connected to the Re-
mote Control Accessory RC6010.
There is a connection available at the rear panel for con-
nection to the lifter motor. An internal jumper ribbon
cable also interfaces the unit to the Remote Control. The
inputs and outputs at these connections allow the vari-
ous parts of the system to be operated at one station.
A-00699
Standoff
Control Accessory
Lifter Motor
Remote
Control Assembly
Internal Jumper
Ribbon Cable
Remote
Control Cable
Power Supply
Assembly
Lifter Motor
Control Cable
Figure 2-2 Modular Remote System Configuration
2.03 Specifications & Design
Features
A. Standoff Control
The following applies to the Standoff Control Assembly
only.
1. System Compatiblility
The Standoff Control Accessory was designed to be
used with various Plasma Cutting Systems