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Rockwell Automation Publication 8720MC-RM001K-EN-P - September 2018
Chapter 7
Configure Parameters
F.013 AC Reactor Capacity
This parameter sets the
capacity of the AC reactor
installed in the main power
wiring.
IMPORTANT:
This parameter is
available from software version
3.00 or later (to be shown on
the parameter F.018).
Parameter Range
100…8,000 μH
Default Setting
• 1200 μH: For catalog numbers 8720MC-RPS065
• 400 μH: For catalog numbers 8720MC-RPS190
Parameter Type
Requiring the password, configurable only while the unit is normal and stops.
Refer also to Parameters
F.003
Current Control Proportional Gain
F.004
Current Control Integral Gain
F.010
Carrier Frequency
This parameter sets the capacity of the AC reactor in the unit of micro-henry (μH). The AC reactor capacity set to the parameter is not the total
capacity for three phases but the capacity for one phase only.
This is also applicable to multiple units connected in parallel.
F.014 Precharge/Discharge Time
This parameter sets the
precharge/discharge time. If
the DC-bus voltage did not
increase in precharge, even if
the set time period has elapsed,
a precharge error occurs. In case
of discharge, the discharge
operation continues for the
time period set to this
parameter.
IMPORTANT:
This parameter
must be set to 15.0 seconds
when the 8720MCRPS190 unit
is used.
IMPORTANT:
This maximum
Parameter Range (from
15.0…30.0 s) is available from
software version 3.00 or later
(to be shown on the parameter
F.018).
Parameter Range
0.5…30.0 seconds
Default Setting
3.0 seconds
Parameter Type
Requiring the password, configurable only while the unit is normal and stops.
Refer also to Parameters
F.015 Wattage of Precharge/Discharge Resistor
Larger capacity of capacitors connected to the DC-bus requires a longer precharge time. In such a case, set a large value to this parameter.
When the DC-bus voltage does not reach the precharge voltage, even if the time period set to this parameter has already elapsed, a precharge
error occurs. Set a larger value. The precharge voltage is 90% of the peak value of the AC input power voltage.
In case of precharge, the precharge operation is finished when the DC-bus voltage arrives at a certain value, even though the set Precharge/
Discharge Time has not elapsed yet. But in case of discharge, the discharge operation continues for the set value of this parameter, regardless of
the DC bus voltage.
When an external resistor for precharge/discharge or an external circuit is used, set the Precharge/Discharge Time again, if necessary. For
connection of the external resistor for precharge/discharge or the external circuit, refer to
on
and
on