HNC Electric HBU Series, Руководство пользователя

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HBU Series Braking Unit
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3.3.2 Brake unit, fault protection and ground terminal
RL1 & RL2 are wiring terminals of braking unit, should
be correctly connected with braking resistor. Braking resistor’s
value & power should have been selected properly.
NC1 & NC2 are main contact output of internal
malfunction protection. Internal contact act when brake unit
over-heat internally. By this main contact could alarm and
display PLC status coordinating with external control circuit.
HBU-3HA/4HA/5HA series braking unit provide special
grounding terminal, please connect according to rules.
3.3.3 Auxiliary power terminal.
Table 3.6 Auxiliary power terminal
HBU-3HA/4HA/5HA series braking unit of 660V voltage
classes provide auxiliary power terminal, connect
corresponding terminal with 220V AC power supply in use,
and make sure electricity go through 220V power supply firstly
before DC bus voltage joint in. False power-on sequence and
too high auxiliary power supply voltage will lead to brake unit
malfunction even damage. Brake units of 220V/380V/460V
voltage classes have no such wiring terminal, no need to
connect in use.