HNC Electric HBU Series, User Manual

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HBU Series Braking Unit
19
3.2.3 HBU-3/4/5/6HA Brake unit terminal arrangement
3.3 major loop connecting method
3.3.1 Power input terminals
DC(
＋
) & DC(-) are positive and negative input
respectively for braking unit’s DC bus, please connect with
positive and negative input of Inverter’s DC bus correctly.
When inverter connects with DC electric reactor externally,
positive connecting point of braking unit’s DC bus should
behind DC electrical reactor. Cable between DC bus and brake
unit should be as short as possible.