Energy Savings Mode/Optional Accel/Decel - Omron MX2 User Manual

"A" Group: Standard Functions
3-5-11 Energy Savings Mode / Optional Accel/Decel
Func.
Code
A085
A086
92
Energy Saving Mode - This function allows the inverter to deliver the mini-
mum power necessary to maintain speed at any given frequency. This works
best when driving variable torque characteristic loads such as fans and
pumps. Parameter
degrees of its effect. A setting of 0.0 yields slow response but high accuracy,
while a setting of 100 will yield a fast response with lower accuracy.
"A" Function
Name
Energy-saving operation mode Two option codes:
Energy-saving mode tuning
The acceleration time is controlled so that the output current is below the level
set by the Overload Restriction Function if enabled (Parameters
b023
and ). If Overload Restriction is not enabled, then the current limit used is
150% of the inverter's rated output current.
The deceleration time is controlled so that the output current is maintained
below 150% of the inverter's rated current, and the DC bus voltage is main-
tained below the OV Trip level (400 V or 800 V).
Note If the load exceeds the rating of the inverter, the acceleration time may be
increased.
Note If using a motor with a capacity that is one size smaller than the inverter rat-
ing, enable the Overload Restriction function (
Restriction Level (
Note Be aware that the acceleration and deceleration times will vary, depending on
the actual load conditions during each individual operation of the inverter.
Note When analog input is a source of frequency command, be sure to set analog
A016 31
filter = (500 ms). Otherwise, there can be the case that this energy sav-
ing function doesn't work well.
A085 01
= enables this function and
Description
00... Normal operation
01... Energy-saving operation
Range is 0.0 to 100 %.
b022
) to 1.5 times the motor nameplate current.
Section 3-5
A086
controls the
Run Defaults
Mode
EU Units
Edit
00 –
50.0 %
b021
,
b021
) and set the Overload
b022
,