Yaskawa V7 Drives - Manual (Page 140)

A6-2
DYNAMIC BRAKING OPTION INSTALLATION. This option must be installed by a TECHNICALLY
QUALIFIED INDIVIDUAL who is familiar with this type of equipment and the hazards involved.
HAZARDOUS VOLTAGE CAN CAUSE SEVERE INJURY OR DEATH.
LOCK ALL POWER SOURCES FEEDING THE DRIVE IN “OFF” POSITION.
Failure to follow these installation steps may cause equipment damage or
personnel injury.
Preliminary Procedures
1. Disconnect all electrical power to the drive.
2. Open the Drive’s terminal covers.
3. Verify that voltage has been disconnected by using a voltmeter to check for voltage at the
incoming power terminals, L1 (R), L2 (S) and L3 (T).
Braking Resistor (3% Duty Cycle) Installation
Note: The 3% duty cycle Braking Resistor is supplied with 6-inch leads.
1. Mount the Braking Resistor, along with an overload or thermostat, in a suitable metal enclosure.
2. At the Drive. Connect the leads from the Braking Resistor to drive terminals B1 and B2, and
make connections to external control circuit, as shown in Figure A6-1.
3. Close the Drive’s terminal covers.
4. Proceed to “Adjustments” on page A6-4.
WARNING
CAUTION