Haas VF Series Service Manual

1-15-96 96-8100
161
TABLE OF CONTENTS
TECHNICAL REFERENCE
SERVICE MANUAL
VF-SERIES
CRT/VIDEO Initialization complete. (Normally On)
If this light does not come on, there is a problem communicating with the VIDEO PCB.
Check the buss connectors and ensure the VIDEO PCB is getting power.
PGM Program signature found in memory.(Normally On)
If this light does not come on, it means that the main CNC program package was not
found in memory or that the auto-start switch was not set. Check that switch S1-1 is on
and the EPROM is plugged in.
RUN Program running without fault exception.(Normally On)
If this light does not come on or goes out after coming on, there is a problem with the
microprocessor or the software running in it. Check all of the buss connectors to the other
two PCBs and ensure all three cards are getting power.
There 1 two-position DIP switch on the processor PCB labled S1. Switch S1-1 must be ON to auto-start the CNC
operational program. If S1-1 is OFF, the PGM light will remain off.
Switch S2-1 is used to enable FLASH. If it is disabled it will not be possible to write to FLASH.
The processor connectors are:
J1 Address buss
J2 Data buss
J4 Serial port #1 (for upload/download/DNC) (850)
J5 Serial port #2 (for auxiliary 5th axis) (850A)
J3 Power connector
J6 Battery
8.2 MEMORY RETENTION BATTERY
The memory retention battery is initially soldered into the processor PCB. This is a 3.3V Lithium battery that
maintains the contents of CMOS RAM during power off periods. Prior to this battery being unusable, an alarm will be
generated indicating low battery. If the battery is replaced within 30 days, no data will be lost. The battery is not needed
when the machine is powered on. Connector J6 on the processor PCB can be used to connect an external battery.
8.3 VIDEO KEYBOARD PCB WITH FLOPPY
The VIDEO and KB PCB generates the video data signals for the monitor and the scanning signals for the keyboard. In
addition, the keyboard beeper is generated on this board. There is a single jumper on this board used to select inverse video.
The video PCB connectors are:
P1 Power connector
J3 Keyboard (700)
J4 Address bus
J5 Data
J10 Floppy V+
J11 SPARE
J12 Floppy
J13 Video (760)
J14 RS422 B
J15 RS422 A

Haas VF Series Specifications

General

Machine Type	Vertical Machining Center
Control	Haas CNC Control
Z-Axis Travel	20-30 inches (varies by model)
Y-Axis Travel	16 - 30 inches (varies by model)
Spindle Motor	20-30 hp (depending on model)
Tool Capacity	20-40 tools (varies by model)