COMMON SWITCH 3 Parameter 278 is a collection of general purpose single bit flags used to turn some functions on and off. This bit will cause the machine to use discrete outputs 21 and 26 to command the shuttle to move in and out. On mills with the Air Driven Shuttle it must be set to 1. On all other mills it must be set to 0. The left and right cursor arrows are used to select the function being changed. All values are 0 or 1. The function names are:INVERT G.B.This bit allows an alternate gearbox configuration. It inverts the sense of the ear box inputs. Used for 50 taper option.DPR SERIALCauses the main serial inputs/outputs to through through the floppy video board.CK PALLET INThis bit is used on Horizontal mills only.CK HIDN VARThis bit is used on horizontal mills only.DISPLAY ACTWhen set to 1, displays the actual spindle speed on the Current Commands display page.TSC PRG ENBLEnables purge output on TSC option.RESERVEDReserved for later use.SPND DRV LCKThis bit must be set to 1 if machine is equipped with an non-Haas vector spindle drive. This bit will must be suet to 1 if the machine has a 50 taper spindle or a non-Haas vector drive.RESERVEDCNCR SPINDLE(Concurrent Spindle) When set to 1, the spindle will be commanded to start concurrently with other commands in the same block. In the following example, with this bit set to 1, the spindle will start at the same time and the feed:RESERVEDReserved for later use.HAAS VECT DR(Haas Vector Drive) This bit must be set to 1 if machine is equipped with a HAAS vector spindle drive. When set to 1, voltage to the Haas vector drive is displayed in the diagnostics display as DC BUSS.UP ENCL TEMP(Microprocessor Enclosure Temperature) When set to 1, the enclosure temperature will be displayed on INPUTS2 screen of the diagnostics display.SPIN TEMP NC(Spindle Temperature Sensor Normally Closed) This bit specifies the type (normally open or normally closed) of the spindle temperature sensor. This bit should be set to 1 for machines with a Haas vector drive, and 0 for machines that do not have a vector drive.AIR DRV SHTLThis bit will cause the machine to use discrete outputs 21 and 26 to command the shuttle to move in and out. On wills with the Air Driven Shuttle it must be set to 1. On all other mills it must be set to 0.GIMBAL SPNDLThis bit will cause the machine to check that the Z,A and B axes are set to zero before a tool change is started. If one is not, alarm 150 will be generated. On mills with the gimbaled Spindle it must be set to 1. On all other mills it must be set to 0.D:Y SWITCH ENABLEThis bit enables the switching of spindle motor windings, provided the hardware is not installed, and the proper parameters are set. If this switch is set, but bit 19 is not, the the winding switching will only be done with the spindle is at rest, depending on the target speed of the spindle.D:Y SW ON FLYThis bit enables switching on the fly, as the spindle motor is accelerating or decelerating through the switch point. If bit 18 is not set, this switch will be ignored.5 AX TOFS-XThis bit is used with the G143 (modal 5 axes tool length compensation) on machines with a Gimbaled Spindle. If it is set to 1, this means that when the corresponding rotary axes is moved, the sign of the X Position must be inverted. Normally, this bit should be set to 0.5 AX TOFS-YThis bit is used with the G143 (modal 5 axes tool length compensation) on machines with a Gimbaled Spindle. If it is set to 1, this means that when the corresponding rotary axes is moved, the sign of the Y Position must be inverted. Normally this but should be set to 0.5 AX A MOV BThis bit us used with the G143 (modal 5 axes tool length compensation) on machines with a Gimbaled Spindle. The B axes normally moves the A axes, but if this is not true, this bit can be set to change which is the inner axes. Normally this bit should be set to 0.SAFETY INVERYThis bit supports the CE door interlock that locks when power is turned off. For machines that have the regular door lock that locks when power is applied, this bit must be set to 0. For machines that have the inverted door lock, this bit must be set to 1.