Service Home How To Procedures MDC-500 Rotary Unit Installation
Last updated: 11/30/2018

MDC-500 - Rotary Unit Installation

Prerequisites

Make sure that the MDC-500 has the additional axis drives installed to support the additional axis. If a second mocon PCB is required, make sure it is installed before installing the additional axis.

Electrical Safety

 Caution: When you do maintenance or repair on CNC machines and their components, you must always follow basic safety precautions. This decreases the risk of injury and mechanical damage.

  • Set the main circuit breaker to the [OFF] position.

 Danger: Before beginning any work inside the control cabinet the High Voltage indicator light on the 320V Power Supply / Vector Drive must have been off for at least 5 minutes.

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

MDC-500 - Rotary Unit Installation

1

Remove the rotation door cable cover [2], the partition cable cover [1], and the split 2-piece grommet plate [3].

2

Place the rotary unit on the MDC pallet.

 Note: Make sure that the pallet surface is clean before mounting the rotary unit on it.

 Caution: Make sure to use a lift that is properly rated for the weight of the rotary unit.

 Caution: Make sure that the selected rotary product is within the machine's pallet changer rotational and height capacity before you command a pallet change.

Secure the rotary unit to the table with T-nuts.

3

Follow the routing shown to bring the rotary unit cables and air hose through the grommet holes and up to the cable bracket support box on top of the machine. Press the 2-piece grommet plate into place.

4

Connect the quick-release air hose fitting to the air supply outlet in the cable bracket support box.

Connect the rotary unit motor control and encoder cables to the connections marked on the cables.

Secure the excess cable inside the cable bracket support box with a cable tie.

5

Install the rotation door cable cover [2] and the partition cover [1].

6

Remove the rear cover of the pallet station control box.

7

Remove the plastic insert from the rotary index hole.

8

Insert the rotary index push button into the hole labeled "Rotary Index" from the outside of the enclosure and attach it with the metal locking nut from the inside. Push the plastic switch assembly onto the push button from the inside. Slide the tab at the top of the switch assembly to secure it in place.

9

Attach the yellow lead [1] of the rotary index cable to the top of the switch and the white lead [2] to the bottom.

Replace the panel and back cover.

10

Disconnect the pallet changer amplifier cable from its socket on the first Mocon PCB and connect it to the Z Axis socket on the second Mocon PCB.

MDC-500 - Rotary Unit Setup and Configuration

1

Press [PARAM/DGNOS] and make these changes to move the B Axis parameters to the W Axis:

-Set Parameter 315:14 FOURTH AXIS to 1.

-Set Parameter 315:15 FIFTH AXIS to 1.

-Set Parameter 315:20 MAP 4TH AXIS to 1.

-Set Parameter 426:3 DISABLED to 0.

-Set Parameter 708, PALLET CHANGER AXIS, to 8.

-Set Parameter 737:1 ROTARY INDEX BUTTON to 1.

-Enable Setting 30, Fourth Axis

-Enable Setting 78, Fifth Axis

-Set Setting 164 ROTARY INCREMENT to 90.

2

Press [MDI/DNC].

Type M17 and press [WRITE/ENTER].

3

Press [CYCLE START] to unclamp the pallet.

Wait until the assembly has risen to its highest point.

Press [EMERGENCY STOP].

4

Turn the entire assembly manually to make sure that the additional axis and workpiece sufficiently clear the machine walls.

5

Align the pallet as close to the home position as possible. Reset the [EMERGENCY STOP] button.

6

Press [ZERO RETURN].

Type in the letter of the axis of the pallet.

Press [SINGLE] to align and reclamp the pallet.