WR BEAR - Page 8

Figure 3: Panda BEAR Signal Ports
When driving the load dynamically, a non-negligible back EMF will be generated
by BEAR upon backdrive or impacts. In such applications, it is highly recom-
mended to use Li-Po batteries as power supply or add a big capacitor to the
power supply circuit as a buffer to protect the power supply.
CAUTION
• Liquid Cooling The headers of the liquid cooling channel on PB02 are push-to-connect
headers for 4mm OD tubes. The applied coolant pressure in the cooling channel can
be up to 1MPa, but it is recommended to regulate your coolant pressure under 0.7MPa
if your system’s coolant is pressurized at all time. It is recommended to use DI water
mixed with appropriate amount of biological inhibitors as coolant. It is not recommended
to add other additives or dyes into the coolant.
. To prevent damage to the circuit from coolant leakage, please apply/replace
PTFE sealant tape on the thread of the cooling channel headers before attaching
them onto your BEAR and check for leakage carefully.
CAUTION
Refrain from using Copper (II) Sulphate (CuSO
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) additive – common trade name
“Nuke Cu” or “Biocide Cu” – due to its tendency to react with metals usually found
in the liquid cooling loop, especially radiators (Zn, Cu, Sn) as well as BEAR (Al)
thus promoting corrosion. Using CuSO
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also accelerates visually discouraging
copper tarnishing phenomena.
CAUTION
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