Download - Haas Automation, Inc.

In order to index the unit, pins 3 and 4 need to be connected (Do not apply power
to these wires). A connection, at pins 1 and 2 are not needed for the control to
operate. However pins 1 and 2 could be used to signal another option, such as an
automatic drilling head.
A color-coded cable is available to help with the installation (M-Function control),
the cable colors and pin designations are:
1 = red, 2 = green, 3 = black, 4 = white
HA5C Remote Input Example: A common application for the HA5C is dedicated
drilling operations. The cycle start wires are connected to a switch that closes when
the drill head retracts and the “Finish” wires are connected to the “Start” wires of
the drill head. When the operator pushes Cycle Start, the HA5C indexes to position,
and triggers the drill head to drill the hole. The switch mounted to the top of
the drill head will index the HA5C when the drill retracts. This results in an endless
loop of indexing and drilling. To stop the cycle, enter a G97 as the last step of the
control. The G97 is a No Op code that tells the control not to send the feedback so
the cycle can be stopped.
Remote Operation with CNC Equipment
NOTE: All of the Haas controls come standard with 1 CNC interface cable.
Additional CNC interface cables can be ordered (Haas P/N CNC).
CNC mills have Miscellaneous functions called “M-functions”. These control external
switches (relays) that turn other mill functions on or off (i.e., spindle, coolant,
etc.). The Haas remote cycle start cable is hooked into the normally open contacts
of a spare M-function relay. Our remote feedback cables are then connected to the
M-function-finished cable (MFIN), an input to the mill control, that tells the mill to
continue to the next block of information. The interface cable is Haas P/N: CNC
The RS-232 Interface
There are two connectors used for the RS-232 interface; one male and one female
DB-25 connectors. Multiple rotary controls are connected by daisy-chaining the
boxes. The cable from the computer connects to the female connector. Another
cable can connect the first control to the second by connecting the male connector
of the first box to the female connector of the second; this can be repeated for up
to nine controls. The RS-232 connector on the control used to up and down load
programs.
• HRT & HA5C - The RS-232 connector on the back of most PCs is a male DB-
9, so only one type of cable is required for connection to the control, or between
controls. This cable must be a DB-25 male on one end and a DB-9 female on the
other. Pins 1, 2, 3, 4, 5, 6, 7, 8, and 9 must be wired one-to-one. It cannot be a
Null Modem cable, which inverts pins 2 and 3. To check cable type, use a cable
tester to check that communication lines are correct. The control is DCE (Data
Communication Equipment), which means that it transmits on the RXD line (pin 3)
96-0315 Rev P
April 2012
11
Original Instructions