Operational manual for dynamic braking unit
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3 Installation Guidelines
Only qualified electricians are allowed to carry out what described in this
chapter. Please operate as the instructions in Safety Precautions.
Ignoring these may cause physical injury or death or damage to the
devices.
Ensure the power supply of the dynamic braking unit is disconnected
during the operation. Wait for at least the time designated until the
POWER indicator is off after the disconnection if the power supply is
applied. It is recommended to use the multimeter to monitor that the DC
bus voltage of the drive is under 36V.
The installation and design of the dynamic braking unit should be
complied with the requirement of the local laws and regulations in the
installation site. If the installation infringes the requirement, our company
will exempt from any responsibility. Additionally, if users do not comply
with the suggestion, some damage beyond the assured maintenance
range may occur.
3.1 Installation environment
The installation environment is the safeguard for a full performance and long-term stable
functions of the DBU. Check the installation environment as followings:
-10~+50℃
If the ambient temperature of the dynamic braking unit is above
40℃, derate 3% for every additional 1℃.
It is not recommended to use the dynamic braking unit if the
ambient temperature is above 50℃.
In order to improve the reliability of the device, do not use the
dynamic braking unit if the ambient temperature changes
frequently.
Please provide cooling fan or air conditioner to control the
internal ambient temperature below the required one if the
dynamic braking unit is used in a close space such as in the
control cabinet.
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