Ulvac FR-E720, Инструкция по эксплуатации

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Inverter Instruction Manual
2 ULVAC CRYOGENICS INCORPORATED
4. Setting the inverter (Refer to the manufacturer’s instruction manual)
The procedure to input 60Hz as the third speed (low speed) is explained below as an
example of the settings.
Acceleration time is required to be changed to avoid output stop with “E.OC1” display
resulting from activated overcur e r nt breaker during acceleration.
CAUTION
Since the inverter is mounted on outside of the compressor unit, parameter input should be
disabled to avoid modification after installation at customers’ sites.
CAUTION
When the compressor stops, the current to the inverter is cutoff, but it takes 2 to 3 seconds for
the condenser inside the inverter to discharge (LED indicator light goes off). Conduct the
steps (1) and (18) a few seconds after stopping the compressor.
CAUTION
Cha
make
nging the value settings occasionally results in malfunction. Please contact us when you
changes to the settings.
CAUTION