ETC Unison ERn Rack-mount Control Enclosure - Manual (Page 10)

6 Unison ® ERn Rack Mount Enclosure Installation Manual
Preparations
Unpack and Inspect
Before you begin installation, check your shipment and confirm it arrived complete and
undamaged.
Step 1: Check the shipping container for physical damage.
Step 2: If you find damage, document it to help with a claim against your shipper.
Step 3: Unpack your order and check the contents against the packing list to be sure
your order is complete.
Step 4: If you discover a problem, call the ETC Systems Group at the closest office of
purchase. See “Contacting ETC” on page 4.
Main Circuit Breaker Protection
Before you begin installing the Unison
®
ERn enclosure, make sure you have installed a
main circuit breaker cabinet or other readily accessible input power disconnect device in
the same room or in close proximity of the installed ERn enclosure.
Lockout/Tagout
Equipment should be locked out while being repaired. Accidents which occur because
machinery that is being repaired and not locked out often result in serious injuries like
amputations, fractures, and even death. Locking out and tagging power at its source is
important while repairing or adjusting equipment because it ensures that power does not
reach the equipment being serviced.
• To lockout means to place a lock on a device that prevents the release of energy.
Locking out is intended to prevent the unexpected startup or energizing of machinery
and equipment during service and maintenance operations.
• To tagout means to place a tag on a switch or other shut off device which warns others
not to start the piece of equipment. Tagout should only be used with lockout, unless
locking out the equipment is impossible.
General Lockout/Tagout Procedures:
• Notify all affected employees that a lockout/tagout procedure is ready to begin.
• Turn off the equipment at the control panel.
• Turn off or pull the main disconnect. Be sure all stored energy is released or restrained.
• Check all locks and tags for defects.
• Attach your safety lock or tag on the energy isolating device.
• Try to restart the equipment at the control panel to ensure that it is secured.
• Check the machine for possible residual pressures, particularly for hydraulic systems.
• Complete the repair or servicing work.
• Remove the safety lock and adapter.
W A R N I N G : Enclosures installed without an accessible power disconnect device cannot
be serviced or operated safely. Follow all local codes and restrictions.
When the disconnect device is not located near the installed enclosure, the
disconnect must allow for proper lockout / tagout.