Index of Terms

Common Abbreviations

These terms appear in the Customer Resource Center and are found throughout our Service and Operator's Manuals.

Abbreviation Meaning
°/sec or deg/sec Degrees per second
µ Micron
AC Alternating Current
AMP (or A) Ampere
APC Automatic Pallet Changer
APL Automatic Parts Loader
arc-sec Arc seconds
ASCII American Standard Code for Information Interchange
ATC Automatic Tool Changer
ATC FWD Automatic Tool Changer Forward
ATC REV Automatic Tool Changer Reverse
AWG American Wire Gauge
bar Metric air pressure
BHCS Button Head Cap Screw
blocks/sec Blocks per second
BT British Tooling (Common usage)
CAD Computer Assisted Design
CAM Computer Assisted Manufacturing (Assisted Machining)
CAT-5 Category 5 Cable
CB Circuit Breaker
CC Cubic Centimeter
CCW Counter Clock Wise
CFM Cubic Feet per Minute
CMM Coordinate Measuring Machine
CNC Computer Numerical Control
CNCR SPINDLE Concurrent Spindle with axis motion
CRC Cyclic Redundancy Check digit
CRT Cathode Ray Tube
CT Caterpillar Tooling
CTS Clear To Send
CW Clock Wise
DB Drawbar
DC Direct Current
DGNOS Diagnostic
DIR Directory
DNC Distributive Numerical Control
DOS Disk Operating System
DTE Data Terminal Equipment
ENA CNVR Enable Conveyor
EDM Electrical Discharge Machining
EOB End Of Block
EOF End Of File
EPROM Erasable Programmable Read Only Memory
E-STOP Emergency Stop
FHCS Flat Head Cap Screw
fpm Feet per Minute
ft Foot
FU Fuse
FWD Forward
GA Gauge
gal Gallon
gpm Gallons per Minute
HHB Hex Head Bolts
hp Horsepower
HS Horizontal Series of Machining Centers
I/O Input/Output
I/O PCB Input Output Printed Circuit Board
ID Inside Diameter
IGBT Isolated Gate Bipolar Transistor
in Inch
in-lb Torque (inch-pounds)
ipm Inches per Minute
kg Kilogram
kVA Kilovolt ampere
kW Kilowatt
l Liter
LAN Local Area Network
lb Pound
LCD Liquid Crystal Display
LED Light Emitting Diode
LO CLNT Low Coolant
LOW AIR PR Low Air Pressure
lpm Liters per Minute
LVPS Low Voltage Power Supply
m Meter
m2 Square meter
M-FIN M -code Finished
m/min Meters per Minute
MB Megabyte (1 million)
MCD RLY BRD M -Code Relay Board
MDI Manual Data Input
MEM Memory
MHz Megahertz
mm MilliMeter
MOCON Motor Control
MOTIF Motor Interface
mph Miles per hour
MSG Message
MSHCP Metric Socket Head Cap Screw
N (unit of force) Newton/newtons
NC Normally Closed
Nm Torque/metric - Newton meters
NO Normally Open
OD Outside Diameter
OPER Operator
oz Ounce
P Pocket
PARAM Parameter
PCB Printed Circuit Board
PGM Program
POR Power On Reset
POSIT Positions
PROG Program
psi Pounds per Square Inch
PST Pallet Schedule Table
PWM Pulse Width Modulation
RAM Random Access Memory
RET Return
REV CNVR Reverse Conveyor
RJH Remote Jog Handle
rpm Revolutions Per Minute
RTS Request To Send
RXD Receive Data
SDIST Servo Distribution PCB
SFM Surface Feet per Minute
SHCS Socket Head Cap Screw
SIO Serial Input/Output
SKBIF Serial Key Board Inter Face PCB
SMTC Side-Mount Tool Changer
SP Spindle
sq ft or ft2 Square feet
T Tool Number
TC Tool Changer
TIR Total Indicated Runout
TNC Tool Nose Compensation
ft-lb Torque (foot-pounds)
TRP Tool Release Piston
TS Tail Stock
TSC Thru the Spindle Coolant
TXD Transmit Data
V Volt
V AC Volts alternating current
V DC Volts direct current
VDI Verein Deutscher Ingenieure
VMC Vertical Machining Center
WAN Wide Area Network

Be aware: Many service and repair procedures should be done only by authorized personnel. The service technicians at your Haas Factory Outlet (HFO) have the training, experience, and are certified to do these tasks safely and correctly. You should not do machine repair or service procedures unless you are qualified and knowledgeable about the processes.

Danger: Some service procedures can be dangerous or life-threatening. DO NOT attempt a procedure that you do not completely understand. Contact your Haas Factory Outlet (HFO) and schedule a service technician visit if you have any doubts about doing a procedure.