NOTE: In addition to the following instructions, you must observe the specifications of the machine manufacturer when replacing the cables.
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ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH |
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oDisconnect all power from all equipment including connected devices prior to removing any covers or doors, or installing or removing any accessories, hardware, cables, or wires. oPlace a "Do Not Turn On" or equivalent hazard label on all power switches and lock them in the non-energized position. oWait 15 minutes to allow the residual energy of the DC bus capacitors to discharge. oMeasure the voltage on the DC bus with a properly rated voltage sensing device and verify that the voltage is less than 42.4 Vdc. oDo not assume that the DC bus is voltage-free when the DC bus LED is off. oBlock the motor shaft to prevent rotation prior to performing any type of work on the drive system. oDo not create a short-circuit across the DC bus terminals or the DC bus capacitors. oReplace and secure all covers, accessories, hardware, cables, and wires and confirm that a proper ground connection exists before applying power to the unit. oUse only the specified voltage when operating this equipment and any associated products. |
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Failure to follow these instructions will result in death or serious injury. |
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Step |
Action |
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1 |
Set main switch to OFF position, or otherwise disconnect all power to the system. |
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2 |
Prevent main switch from being switched back on. |
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3 |
In the case of any drives, servos or other equipment with high capacity capacitors, wait at least 15 minutes after removing power (switching off) to allow the DC bus capacitors to discharge. |
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4 |
Verify whether the DC-BUS LED indicator has turned off on all components located in the axis group. |
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5 |
Verify with an appropriate measuring instrument that the voltages between DC+ to PE (Protective Earth/ground), DC- to PE and DC+ to DC- are all less than 42.4 Vdc. |
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ELECTRIC SHOCK, EXPLOSION OR ARC FLASH |
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Verify with a correctly calibrated measuring instrument that the DC bus is de-energized (less than 42.4 Vdc) before replacing, maintaining or cleaning machine components. |
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Failure to follow these instructions will result in death or serious injury. |
For more information on the DC Bus LED indicator, refer to Bus Bar Module LED Indicators on the Lexium 62 Power Supply and Lexium 62 Cabinet Drive.
Proceed as follows for cable replacement:
oBe sure that the cables clearly indicate their connections before disconnecting.
oReplace cables with an identical type and length.
oRefer to any documentation from the original machine manufacturer before replacing cables.
oDisconnect/Attach the cable from the equipment components involved.
oFor cable replacement of Lexium 62 DC Link Terminal, observe the wiring instructions.
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INOPERABLE INVERTER ENABLE FUNCTION |
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Test the proper functioning of the Inverter Enable after every device replacement and every change of the wiring. |
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Failure to follow these instructions will result in death or serious injury. |
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INCORRECT ASSIGNMENT OF CABLES |
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Verify that the assignment of the cables conforms to their previous connector assignments. |
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Failure to follow these instructions will result in death or serious injury. |
