HIGH VOLTAGES MAY BE PRESENT!
NEVER ATTEMPT TO SERVICE THIS PRODUCT WITHOUT FIRST DISCONNECTING
FROM THE INCOMING AC POWER AND DC BUS.
ALWAYS ALLOW ADEQUATE TIME FOR RESIDUAL VOLTAGES TO DRAIN BEFORE
ATTEMPTING SERVICE.
BEFORE ATTEMPTING INSTALLATION OR REMOVAL OF THIS PRODUCT, BE SURE
TO REVIEW ALL AC DRIVE DOCUMENTATION FOR RELATED SAFETY
PRECAUTIONS.
INSTALLATION AND/OR REMOVAL OF THIS PRODUCT SHOULD ONLY BE DONE BY
A QUALIFIED ELECTRICIAN IN ACCORDANCE WITH NATIONAL ELECTRICAL
CODE OR EQUIVALENT REGULATIONS.
FAILURE TO HEED THESE WARNINGS MAY RESULT IN SERIOUS
BODILY INJURY OR DEATH.
THIS PRODUCT WILL GENERATE HEAT DURING OPERATION.
THIS PRODUCT SHOULD BE INSTALLED ACCORDINGLY ON NON-FLAMMABLE
SURFACES WITH CLEARANCES OF AT LEAST TWO INCHES IN ALL DIRECTIONS.
ALWAYS ALLOW AMPLE TIME FOR THE UNIT TO COOL BEFORE ATTEMPTING
SERVICE ON THIS PRODUCT.
ALWAYS BE SURE THE BRAKING CAPACITY OF THE CHOPPER AND LOAD BANK
DOES NOT EXCEED THE CAPACITY OF THE CONNECTED DRIVE!
REVIEW THE APPLICATION NOTE IN SECTION 7 OF THIS MANUAL FOR
INFORMATION ABUT COMMON DC BUS SYSTEMS.
Important Notice about Drives with DC Link Chokes!
DURING BRAKING SITUATIONS, ENERGY STORED IN A DRIVE’S DC LINK CHOKES
CAN CREATE EXTREME OVER-VOLTAGE CONDITIONS FOR DYNAMIC BRAKING
CONTROL MODULES. TO AVOID THESE CONDITIONS, DC CONNECTIONS FROM
RESISTIVE BRAKING CONTROL MODULES TO THE DRIVE SYSTEM MUST ALWAYS
BE MADE DIRECTLY IN PARALLEL WITH THE DRIVE’S FILTER CAPACITORS.
THESE MODULES SHOULD NEVER BE CONNECTED IN SERIES WITH A DRIVE’S
DC LINK CHOKES.
BE SURE TO REVIEW THE RELEVENT AC DRIVE DOCUMENTATION TO ENSURE
THAT THE PROPER CONNECTIONS ARE USED.
CONTACT THE DRIVE MANUFACTURER OR EQUIPMENT SUPPLIER FOR
ASSISTANCE WITH DRIVE CONNECTIONS.
ANY QUESTIONS RELATING TO APPLICATION, INSTALLATION, OR SERVICE
SAFETY SHOULD BE DIRECTED TO THE EQUIPMENT SUPPLIER.
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