Mechanical & Electrical
Installation
2
2.18 Braking Resistor Installation
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual 121
Figure 2.123 Connect Braking Units in Parallel
◆ Dynamic Braking Option Overload Protection
To prevent overheating the dynamic braking option, set a sequence to de-energize the drive at the trip contacts of
the thermal overload relay.
Figure 2.124 Power Supply Interrupt for Overheat Protection Example
WARNING! Fire Hazard. When you use a braking unit, use a thermal relay on the braking resistors and set a fault contact
output for the braking resistor unit to disconnect drive main power through an input contactor. Incorrect braking circuit
protection can overheat the resistors and cause death or serious injury by fire.
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