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P14311

P14311. Version May 19, 2014. Electrical System Design Description. P14311 Electrical Controls Overview. The electrical system of P14311 consists of the following major components (see block diagram on the next page): Two electrical box assemblies Interlock and E Stop switches

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P14311

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  1. P14311 Version May 19, 2014 Electrical System Design Description

  2. P14311 Electrical Controls Overview • The electrical system of P14311 consists of the following major components (see block diagram on the next page): • Two electrical box assemblies • Interlock and E Stop switches • UC300 Motion Controller and I/O Breakout Board • Low voltage power supplies • AC outlets (supply power to the computer, router, and vacuum) • Fans • SSR and electromagnetic relay • Inside the AC electronics box assembly, a 24VDC LVPS provides power to the coils of the three stepper motors which are located in the upper portion of the enclosure. Likewise, a 12VDC LVPS is situated directly below the 24VDC LVPS and supplies 12VDC for the fans and 5VDC on another channel for all logic situated on the I/O board. • The E-stop switch interrupts the AC line going to both of these supplies. Within the upper enclosure door frame consists the interlock switch, which interrupts current going through the relay coil, and disconnects the steppers motors from their 24VDC supply, as well as the router from its own 120VAC supply. A main rocker switch on the front of the enclosure, however, can disconnect all delivered power from the power cable plugged into the wall outlet. • The I/O board outputs the SSR enable signal, which allows a path of travel for current going to the router (i.e. goes through the relay, too), and the vacuum, and is strictly used for AC power. This I/O board is located in the logic control box assembly, which also contains the stepper motor driver boards and the UC300. JWP 5/19/14

  3. Stepper Motor Drivers E Stop Switch Power from Wall Outlet UC300 and I/O Board AC Electrical Box Assembly Logic Control Box Assembly Computer SSR and Relay Main Rocker Switch Enclosure Interlock Enclosure Fans P14311 Electrical Controls Block Diagram JWP 5/19/14

  4. JWP 5/19/14

  5. Power Cord = Southwire, 55039621 J1, J5, J7 = Carlon, 193810 J16, J25 = Molex, 0705430001 S1 = Mouser, YRM32F2FBBNN S9 = Omron, A22EL-M-24A-02 K1 = Crouzet, 84140800 K3 = Omron, G7L-2A-BUBJ-CB-DC12 Enclosure = McMaster Carr, 49175T4 Electrical Box = Hammond Manufacturing, 1444-17154 PS1 = Meanwell, RD-125A PS2 = Meanwell, HRP-150-24 P3 = Pass & Seymour, PS5366SSANCCV4 P4 = Digikiey, WM2902-ND 22 AWG Hookup wire = Mouser, 602-3051-100-06 18 AWG Hookup wire = Mouser, 602-3055-100-08 Power Distribution Diagram JWP 5/19/14

  6. RC1 = Digikey, M3CCA-2606J-ND RC2 = Digikey, M3CCA-1006J-ND Interlock Switch Fans SSR X-Stepper Motor Driver PCBA X-Stepper Motor PC UC300 RC2 I/O Board RC1 USB Y-Stepper Motor Driver PCBA X-Stepper Motor RC2 RC1 R RC2 X-Stepper Motor Z-Stepper Motor Driver PCBA Limit Switch PCBAs LED Strip Stepper Motors are connected in a bipolar configuration using only 4 wires per motor, 2 for each coil All other connections are made using SL terminals in 2, 3, or 4 wire configurations I/O Board Wiring Diagram JWP 5/19/14

  7. Limit Switch and Interlock Connection Diagram JWP 5/19/14

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