Mitsunaga 3B Machines
Mitsunaga 3B Update and Recondition



New Siemens Controls
Recipe Control
The Recipe part of the screen consists of the following:
- Item – There are four items that are controlled.
- Time – The time is entered in seconds, and the following limits apply.
- Pre-Slurry – 0-999 seconds
- Step 1-5 – 0-99999 seconds.
The total time for all steps is approximately 139 hours, or 5.8 days.
Plate Drive Speed, remember this also controls the upper plate and sun gear. Only positive numbers should be entered, with a limit of +80. You do not need to enter the plus sign for a positive number; just enter the number. The following limits apply.
Pre-Slurry – 0-25
Step1 – 5 – 0-80
Ring Speed – Controls the rotation and direction of the ring gear.
The ring gear speed can be entered as a positive or negative value. The following limits apply.
Pre-Slurry – -25 to +25
Step1-5 – -80 to +80
Slurry 0/1 – This item controls the slurry outlet and is used to turn on a peristaltic pump. Pressing the button on each step will cause it to change from 0 (off) to 1 (on).
Auto Functions
- Start Cycle – If pressed, the cycle will start with the pre-slurry. If no time is entered, it will skip to Step 1 and so on. The elapsed times are reset to zero at the beginning of each cycle. This was done so that, for some reason, the cycle was stopped; you know how much time was run in the last cycle.
- Stop Cycle – Will stop the cycle. Elapsed times will be displayed and remain unchanged until the start button is pressed. Please note that there is no ramp-down effect when this button is pressed. IT STOPS everything.
- Next Step – If pressed, it will toggle to the next step. The amount of time run for the previous step will be displayed. If you hold it down, it will jump through all of them.
- Pause Cycle – This button pauses the process at the point where it was activated. This will allow removing the upper plate assembly and checking parts, etc., keep in mind that the cycle is still active.
Manual Functions (within the Auto Cycle Screen)
- Ring Up – The Ring must be in the up position to enable the motors. There is no up switch on the machine, and the air pressure must be high enough to allow the ring gear to move up and down. The ring gear button will turn green when it is enabled. The auto cycle will not start if the ring gear up solenoid is not on.
- Man On – This is the Manual On button, which, when depressed, turns on the plate and ring drive based on the Jog Speeds.
- Slurry On – Enables the slurry outlet.
- Jog Plate – A momentary button jogs the plate drive at the speed listed in the Jog Speed box. 0-80 rpm is the limit.
- Jog Ring – Momentary button jogs the ring gear based on the Jog Speed I/O field. -80 to +80 are the limits.
- Jog Speed I/O fields – Allows entering the speed 0-80 rpm(plate) and -80 to +80 (Ring). The fields are green when the Manual functions are available. In Auto, they will turn white.
The DC motor, which originally drove all the motion, was replaced with two servo motors. The Ring Gear is driven separately, allowing the rotation of the carriers in the opposite direction. Plate flatness can be maintained. Downforce is controlled by weights that can be added to or removed from.
Boom assembly is also available. Provides the following added features.
Sony Probe integration
- The Sony probe is read via the internal network and is displayed on the HMI.
- It can be enabled per step, and the value is saved in the recipe.
- Plate wear is also tracked.
Downforce is controlled via two cylinders.
Downforce is controlled per step in the recipe.
Plate Flatness Gauge



Mitsunaga 3B Flatness Gauge
The flatness gauge kit for the Mitsunaga 3B contains the following components:
- 900087-3B – The base, on which the indicator and other components are mounted, contains 4-48 thread holes to allow moving the tips to various locations to check the flatness on different objects.
- 900087-3B-1 – Bronze sleeve, which has been modified to allow the set screw to cinch the indicator in place.
- 900087-3B-2 – Tips
- 900087-3B-3 – 8-32 set screw
- 900087-3B-4 – Granite Flat
- 900087-3B-5 – Indicator
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- Accuracy 0.00012”
- Resolution 0.00005”
- Accuracy 0.00012”
Ronnebaum Technical Services • 4814 Timberline Drive • West Des Moines, IA 50265 •
Phone: (515) 778-0895 • Fax: (515) 225-1432

