Haas Parameters

Haas Parameter 413 V SCREW COMP. COEF. Coefficient of heating of the ballscrew, and is used to decrease or shorten the screw length.

Haas Parameter 457 W LINEAR SCREW OFFS Used on machines with linear scales. This parameter accounts for the unused portion of the ballscrew between zero and the actual motor.

Haas Parameter 398 V MAX ERROR Maximum error allowed in servo loop before alarm is generated. Units are encoder steps. This is the maximum allowable error in Hz between commanded speed…

Haas Parameter 414 V AIR BRAKE DELAY Delay provided for air to release from the brake prior to moving. Units are milliseconds.

Haas Parameter 458 W SCALES PER INCH Used on machines equipped with linear scales.

Haas Parameter 438 W BACKLASH Backlash correction in encoder steps.

Haas Parameter 439 W DEAD ZONE Dead zone correction for driver electronics. Units are 0.0000001 seconds.

Haas Parameter 440 W IN POSITION LIMIT How close the motor must be to the endpoint before any move is considered complete when not in exact stop (G09 or G61). Units…

Haas Parameter 424 V SPINDLE THERM COEF. Supports Spindle Head Thermal Compensation feature.

Haas Parameter 465 Tt I GAIN Integral gain in servo loop.

Haas Parameter 427 W P GAIN Proportional gain in servo loop.

Haas Parameter 466 Tt RATIO (Steps/Unit) Number of steps of encoder per unit of travel. Encoder steps supply four (4) times their line count per revolution. Thus, an 8192 line encoder…

Haas Parameter 428 W D GAIN Derivative gain in servo loop.

Haas Parameter 467 Tt MAX TRAVEL (Steps) Maximum negative direction of travel from machine zero in encoder steps. Does not apply to A-axis. A 20-inch travel, 8192 line encoder and 6…

Haas Parameter 429 W I GAIN Integral gain in servo loop.

Haas Parameter 468 Tt ACCELERATION Maximum acceleration of axis in steps per second per second.

Haas Parameter 408 V PHASE OFFSET The motor phase offset for V motor. Constant value, the value has no units.

Haas Parameter 447 W FRICTION COMPENSAT Compensate for friction on the axis. The units are in 0.004V.

Haas Parameter 409 V PHASE OFFSET Shifts the effective position of the encoder Z pulse. It can correct for a motor or home switch positioning error.

Haas Parameter 448 W ACCEL FEED FORWARD Set the feed forward gain for the axis servo. Constant value, it has no units.

Haas Parameter 410 V EXACT STOP DIST. This parameter controls how close the axis must be to its end point when exact stop is programmed. They apply in G09 and G64….

Haas Parameter 449 W SCREW COMP. COEF. Coefficient of heating of the ballscrew, and is used to decrease or shorten the screw length.

Haas Parameter 411 V FRICTION COMPENSAT Compensate for friction on the axis. The units are in 0.004V.

Haas Parameter 450 W AIR BRAKE DELAY Delay provided for air to release from the brake prior to moving. Units are milliseconds.

Haas Parameter 412 V ACCEL FEED FORWARD Set the feed forward gain for the axis servo. Constant value, it has no units.

Haas Parameter 437 W STEPS/REVOLUTION Encoder steps per revolution of motor. An 8192 line encoder gives: 8192 x 4 = 32768

Haas Parameter 420 V SCALE GAIN MULT Used on machines with linear scales. Linear scales are used to continuously correct any errors in encoder position. The parameter determines the gain of…

Haas Parameter 459 W SCALES PER REV Used on machines equipped with linear scales.

Haas Parameter 477 Tt MAX CURRENT Fuse level in % of max power to motor. Applies only when motor is stopped. Corresponds to maximum peak current provided by the amplifier. 4095…

Haas Parameter 421 V LINEAR SCREW OFFS Used on machines with linear scales. This parameter accounts for the unused portion of the ballscrew between zero and the actual motor.

Haas Parameter 460 W SPINDLE THERM COEF. Supports Spindle Head Thermal Compensation feature.

Haas Parameter 478 Tt D*D GAIN Second derivative gain in servo loop.

Haas Parameter 422 V SCALES PER INCH Used on machines equipped with linear scales.

Haas Parameter 463 Tt P GAIN Proportional gain in servo loop.

Haas Parameter 423 V SCALES PER REV Used on machines equipped with linear scales.