Yaskawa AC Drive-Option BRAKING UNIT-CDBR Spec.D - Manual (Page 44)

6 Electrical Installation
44 YASKAWA ELECTRIC TOBP C720600 01C 1000-Series Option CDBR-†D, LKEB-† Installation Manual
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Wiring the CDBR Braking Unit
■ Wiring Precautions
Prior to installing the CDBR Braking Unit or the LKEB Braking Resistor Unit, wire the
drive, make the necessary connections to the drive terminals, and verify that the drive
functions normally without the option installed. Refer to the Quick Start Guide packaged
with the drive for information on removing the digital operator and front covers, wiring, and
connecting the drive.
WARNING! Electrical Shock Hazard. Be sure to ground the drive ground terminal (200 V class: ground to
100 Ω or less; 400 V class: ground to 10 Ω or less; 600 V class: ground to 10 Ω or less). Improper
equipment grounding could result in death or serious injury by contacting ungrounded electrical equipment.
WARNING! Fire Hazard. When installing dynamic braking options, perform all wiring exactly as specified in
the wiring diagrams provided. Failure to do so can result in fire.
WARNING! Electrical Shock Hazard. Mount the LKEB Braking Resistor Unit on a grounded metallic plate.
When it cannot be mounted on a grounded metallic plate, connect a ground wire from a mounting LKEB
screw to earth ground. Improper equipment grounding could result in death or serious injury.
NOTICE: Insulate shields with tape or shrink tubing to prevent contact with other signal lines and
equipment. Improper wiring practices could result in drive or equipment malfunction due to short circuit.
NOTICE: Do not solder the ends of wire connections to the option. Soldered wiring connections can loosen
over time. Improper wiring practices could result in option malfunction due to loose terminal connections.
Note: 1. Keep ground cables as short as possible and ensure cabling complies with local codes.
2. Separate CDBR Braking Unit and LKEB Braking Resistor Unit wiring from control wiring.
3. Keep wiring distance between the CDBR Braking Unit and LKEB Braking Resistor Unit shorter than
10 meters (32.80 feet) and keep wiring between the drive and the CDBR Braking Unit shorter than 5
meters (16.40 feet).
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