Southern Machinery provides professional SMT peripheral equipment.

Universal Auto Insertion Machine Axial Inserter ^241F PC BOARD FUNCTIONAL/TEST SPECIFICATION

2023-02-09 17:51:23



PART NUMBER OF ASSEMBLY 47634502, -03, -04


RELEASE NUMBER 66764/1018294

RELEASE DATE 4/15/10 (Updated 2/24/10)

  1. product description overview
  1. introduction

The Sequencer MMIT I/O Assy replaces the sequencer I/O box, the Optical Refire controllers, and the 20 AC Out PCBs with a single I/O card that interfaces to the Mini-MIT bus that has been used on the SMT Platform since its inception. The card has 20 DC outputs capable of driving up to 1 amp each at 12 VDC. The card has 40 inputs that are nominally dedicated for low parts and parts missing for the dispensing heads. In addition, the card has a diagnostic port which is not connected to any outputs and 8 general purpose inputs and outputs for other features such as start and stop switches.

  1. history

This card is a new design, but based on experience with Mini-MIT on the platform. The functions of this I/O card are the same as those of the modules it replaces (refire controller, 20 AC Output).

  1. physical description

The card is the same size as the 20 AC Output (5”x15”). The construction is a multi-layer surface mount assembly. To streamline manufacture, as many of the components as possible are surface mount.

  1. Compatibility

This card is designed to completely replace the previous control scheme. The only compatibility to existing equipment is for the dispensing heads and the jumper wire feeder. This card will support the new (stepper controlled) or old feeder. The cabling to the jumper wire feeder, however, is different. This card will not support the older AC valves or the old Refire Det PCBs. DC valves are required and the new Refire Det PCA is needed.

  1. operating features

The Seq MMIT I/O PCA an I/O card optimized for use on the IM sequencers. It has separate connectors for Mini-MIT in and out, and has separate connectors for each of the functions supported. In this way, the cabling can be modular, avoiding massive cable harnesses. All signals are routed through the gate array, which is programmable. Thus, the card’s function can be tailored to suit many diverse needs. The card is designed for low power consumption which reduces the cost of cables and eliminates any thermal problems. All signals going off board are conditioned to protect the board from damage from accidental wiring errors.

  1. operating specifications
  1. electrical power requirements

ï +12 VDC @ 4 A max.

ï +5 VDC @ 2 A max.

ï 24 VAC @ 2.5 A max.

Over current protection for the main +12 VDC and +5 VDC are provided by the power supply. The power supply should not be replaced without due consideration to the over current protection.

  1. Thermal considerations

There are no reasons for concern for any expected thermal conditions in the environment that it will be used in.

  1. inputs

There are 48 inputs that are optically isolated and filtered. These are used for (20) part missing, (20) low parts and (8) general purpose inputs.

  1. outputs

There are (20) 12 VDC sourcing outputs for valve solenoids. Each is capable of driving up to 1 A. There are 8 general purpose outputs that are also 12 VDC sourcing. In addition, 5 of these general purpose outputs also have AC relays on them capable of sourcing 24 VAC at up to 1 A.

  1. connector pin out

Power Input: 15 pin AMP Mate-n-lok connector that supplies +12 VDC, return, +5 VDC, return, 24 VAC, switched 24 VAC, and return, and an external power source.

Jumper Wire Feeder: 6 pin AMP Mate-n-lok connector that supplies 24 VAC, return, the DC output for head 3 and the Out of Wire input for head 3. The output and input are in parallel with the output and input for the dispensing head itself. In addition, there is a Test input from the jumper wire feeder that will manually feed a wire and fire the dispensing head.

Valve Drivers: (4) 10 pin Mod-U connectors supplying 5 sourcing signal lines and 5 return lines. These outputs are open drain P-channel MOSFETs.