FAQ: What is the proper value to enter in Pn600 when Yaskawa Regenerative Resistor Unit is used?
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For Sigma II ServoPack up to 6.0 kW, if internal regeneration is used, leave Pn600 at factory default, 0.
The value for Pn600 is in units of 10 watts. Its important to note that it is necessary to derate wattage of the external resistor to 20% or less for natural convection cooling and 50% or less with forced air cooling
For example: JUSP-RA04 is wired default as 6.25 ohm @ 4x220W = 880W
880W*0.2 = 180W
Hence, Pn-600 = 18
To see a chart with models and PN-600 settings, please see the attached .PDF file.
Please refer to Sigma II User's Manual (YEA-SIA-S800-32.2B) section 5.6 for additional details.
JUSP-RA04 is wired default as 6.25 ohm @ 4x220W = 880W
JUSP-RA05 is wired default as 3.13 ohm @ 8x220W = 1760W
JUSP-RA18 is wired default as 18 ohm @ 4x220W = 880W
JUSP-RA19 is wired default as 14.25 ohm @ 8*220W = 1760W
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