View source for Wiring: Keeping the Mitsubishi Drives Powered when E-Stop

==About==
On some older benders, the Mitsubishi drives power down when E-Stop is pressed.  This approach causes the Feed and Rotate axes to lose the HOME status in the I2T modules when the E-Stop is pressed.<br>
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Since CNC Bender software monitors the home state as a way to predict servo module health, it is necessary to keep the Mitsubishi drivers powered - even when the E-Stop is activated.
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<font size=5>[[image:Gear_warning.jpg]] <b>WARNING!</b><br><br></font>
<font size=3>Only experienced electrical technicians should perform what we describe next.
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There can be high voltages and currents of electricity flowing through the electrical panel.
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==STEP 1: Check the State of the Drives at E-Stop==
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Set MASTER POWER ON, Press the E-Stop, then examine the drives LED screens.  If they are blank, then the drives are off, and you will need to perform this wiring change during a CNC Bender upgrade.
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This drive is off.  The screen is black.
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[[image:MitsubishiDriveOffAtEStop.jpg|400px|right]]
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==STEP 2: Find Three Wires==

Find the three wires entering the top left side of the white fuse buse to the left of the Feed drives.<br><br>

[[image:MitsubishiDriveOffAtEStop02.jpg|400px]]<br>

*The wires will be labelled 3L1, 3L2, and 3L3.
*Trace those wires to the M-2 contactor.  (Find the other end.)<br>

[[image:MitsubishiDriveOffAtEStop03.jpg|400px]]<br>
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==STEP 3: Reroute the Wires==
*Reroute these three ends to the top of the M-1 contactor.
*Be sure to place the wires into the proper terminal point (1, 2, or 3).
*If there are other wires in the bottom of the M-2 contactor, then leave them in place.
*Leave the wires that are in the top of M-1 in place.  (Double up the 1L1, 1L2, 1L3 and the three "3" wires.)
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[[image:MitsubishiDriveOffAtEStop04.jpg|400px]]<br>


==STEP 4: TEST==
*Apply power to the bender (at the main breaker switch outside the bender)
*Press the E-Stop
*The drive should stay powered like shown here.  (The AL E6 message will flash):
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[[image:MitsubishiDriveOffAtEStop05.jpg|400px]]<br>
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==Tools/Parts Needed==
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14 Gauge THHN stranded wire
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[[image:14awg_thhn_wire.jpg|200px]]
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Vinyl Insulate Terminal Pin for 14 gauge wire  (See 159-1617 Kobiconn Terminals Pin Blue 16-14 at Mouser.com)
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[[image:pinterminal.jpg|200px]]
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Jumper bar (Automationdirect.com DINnectors DN-82J10)
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[[image:jumperbar_dn-82J10.jpg|200px]]
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Crimper for terminal pins, screw drivers, diagonal cutters for cutting the jumper bar
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[[image:screwdrivers.jpg|200px]]
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==Other Pages==

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