Health and safety risks arising from the Lexium 62 Drive System have been reduced. However, residual risks remain, since the Lexium 62 Drive System works with electrical voltage and currents as well as movement.
If activities involve residual risks, a safety message is made at the appropriate points. This includes potential hazards that may arise, their possible consequences, and describes preventive measures to avoid the hazards.
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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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ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH |
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oOperate electrical components only with a connected protective ground (earth) cable. oAfter the installation, verify the secure connection of the protective ground (earth) cable to all electrical devices to ensure that connection complies with the connection diagram. oBefore enabling the device, safely cover the live components to prevent contact. oDo not touch the electrical connection points of the components when the module is energized. oProvide protection against indirect contact (EN 50178). oConnect and disconnect cables and terminals only after you have verified that the power has been removed from the system. oInsulate the unused conductors on both ends of the motor cable. |
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Failure to follow these instructions will result in death or serious injury. |
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ELECTRIC SHOCK CAUSED BY HIGH LEAKAGE (TOUCH) VOLTAGE |
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oAttach the shock protector covers on the extremities of the Bus Bar Module combination. oApply power to the device only if the shock protector covers have been attached to the extremities of the Bus Bar Module combination. |
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Failure to follow these instructions will result in death or serious injury. |
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ELECTRIC SHOCK CAUSED BY HIGH LEAKAGE (TOUCH) VOLTAGE |
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oBefore working on the product, make sure that it is de-energized. oAfter disconnection, do not touch connector CN6 mains connection on the Lexium 62 Power Supply module as it still carries hazardous voltages for approximately one second. oOnly operate the Lexium 62 components in a control cabinet that cannot be opened without the help of tools. |
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Failure to follow these instructions will result in death or serious injury. |
This product has a leakage (touch) current greater than 3.5 mA. If the protective ground connection is interrupted, a hazardous leakage (touch) current may flow if the housing is touched.
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INSUFFICIENT GROUNDING |
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oUse a protective ground conductor with at least 10 mm2 (AWG 6) or two protective ground conductors with the same or larger cross section of the conductors supplying the power terminals. oVerify compliance with all local and national electrical code requirements as well as all other applicable regulations with respect to grounding of all equipment. |
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Failure to follow these instructions will result in death or serious injury. |
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CRUSHING, SHEARING, CUTTING AND HITTING DURING HANDLING |
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oObserve the general construction and safety regulations for handling and assembly. oUse appropriate mounting and transport equipment and use appropriate tools. oPrevent clamping and crushing by taking appropriate precautions. oCover edges and angles to protect against cutting damage. oWear appropriate protective clothing (for example, protective goggles, protective boots, protective gloves). |
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Failure to follow these instructions can result in death, serious injury, or equipment damage. |
The metal surfaces of the product may exceed 65 °C (149 °F) (for bare metal) during operation.
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HOT SURFACES |
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oAvoid unprotected contact with hot surfaces. oDo not allow flammable or heat-sensitive parts in the immediate vicinity of hot surfaces. oVerify that the heat dissipation is sufficient by performing a test run under maximum load conditions. |
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Failure to follow these instructions can result in death, serious injury, or equipment damage. |
Magnetic and Electromagnetic Fields
Conductors and motors can generate strong local electrical and magnetic fields. This can cause interference in sensitive devices.
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ELECTROMAGNETIC FIELDS |
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oKeep persons with electronic medical implants, such as pacemakers, away from the motor and the conductors. oDo not place electromagnetically sensitive devices in the vicinity of the motor or of the conductors. |
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Failure to follow these instructions can result in death, serious injury, or equipment damage. |
There can be different sources of hazardous movements:
oNo, or incorrect, homing of the drive
oWiring or cabling errors
oErrors in the application program
oComponent errors
oError in the measured value and signal transmitter
NOTE: Provide for personal safety by primary equipment monitoring or measures. Do not rely only on the internal monitoring of the drive components. Adapt the monitoring or other arrangements and measures to the specific conditions of the installation in accordance with a risk and error analysis.
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UNAVAILABLE OR INADEQUATE PROTECTION DEVICE(S) |
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oPrevent entry to a zone of operation with, for example, protective fencing, mesh guards, protective coverings, or light barriers. oDimension the protective devices properly and do not remove them. oDo not make any modifications that can degrade, incapacitate, or in any way invalidate protection devices. oBefore accessing the drives or entering the zone of operation, bring the drives and the motors they control to a stop. oProtect existing workstations and operating terminals against unauthorized operation. oPosition EMERGENCY STOP switches so that they are easily accessible and can be reached quickly. oValidate the functionality of EMERGENCY STOP equipment before start-up and during maintenance periods. oPrevent unintentional start-up by disconnecting the power connection of the drive using the EMERGENCY STOP circuit or using an appropriate lock-out tag-out sequence. oValidate the system and installation before the initial start-up. oAvoid operating high-frequency, remote control, and radio devices close to the system electronics and their feed lines, and perform, if necessary, an EMC validation of the system. |
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Failure to follow these instructions will result in death or serious injury. |
Drive systems may perform unanticipated movements because of incorrect wiring, incorrect settings, incorrect data or other errors.
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UNINTENDED MOVEMENT OR MACHINE OPERATION |
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oCarefully install the wiring in accordance with the EMC requirements. oDo not operate the product with undetermined settings and data. oPerform comprehensive commissioning tests that include verification of configuration settings and data that determine position and movement. |
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Failure to follow these instructions can result in death, serious injury, or equipment damage. |
All signal and control voltages must be designed as PELV (Protective Extra Low Voltage) circuits. In particular, this implies protective measures against direct and indirect contact with hazardous voltage by:
oEnsuring that the voltage with respect to PE (Protective earth ground) remains below 30 Vdc.
oEnsuring separation between PELV circuits and other circuits implemented in the cabinet.
Connect GND / 0 V to PE at least at one point in the control cabinet.
Separate high and low voltage wiring and respect the standard IEC 61800-5-1, Adjustable speed electrical power drive systems - safety requirements.
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ELECTRIC SHOCK BY INADEQUATE PROTECTIVE SEPARATION |
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Only connect devices, electrical components, or lines to the signal voltage connectors of these products that feature a sufficient, protective separation from the connected circuits in accordance with the standards (IEC 61800-5-1: Adjustable speed electrical power drive systems - safety requirements). |
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Failure to follow these instructions will result in death or serious injury. |
