Energy-Saving - YASKAWA CIMR-F7A Instruction Manual

Energy-saving

To perform energy saving, set b8-01 (Energy Saving Mode Selection) to 1. Energy-saving control can be per-
formed using both V/f control and vector control. The constants to be adjusted are different for each. In V/f
control, adjust b8-04 to b8-06, and in vector control, adjust b8-02 and b8-03.
Related Constants
Con-
stant
Number
Energy-sav-
b8-01 ing mode
selection
Energy-sav-
b8-02
ing gain
Energy-sav-
b8-03 ing filter time
constant
Energy-sav-
b8-04 ing coeffi-
cient
Power detec-
b8-05 tion filter
time constant
Search opera-
b8-06 tion voltage
limiter
Motor rated
E2-02
slip
Motor rated
E2-11
output
* 1. The factory setting is 1.0 when using flux vector control.
* 2. The factory setting is 2.00 s when Inverter capacity is 55 kW min.
The factory setting will change when the control method is changed. The open-loop vector factory setting is given.
* 3. By setting E2-11 (Motor rated output) the appropriate value will be set.
* 4. The factory setting depends on the Inverter capacity. The value for a 200 V Class Inverter of 0.4 kW is given.
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6
Name Description
Select whether to enable or dis-
able energy-saving control.
0: Disable
1: Enable
Set the energy-saving gain with
the vector control method.
Set the energy-saving filter time
constant with the vector control
method.
Set the maximum motor effi-
ciency value.
Set the motor rated capacity in
E2-11, and adjust the value by
5% at a time until output power
reaches a minimum value.
Set the time constant for output
power detection.
Set the limit value of the voltage
control range during search
operation.
Perform search operation to
optimize operations using
minute variations in voltage
using energy-saving control. Set
to 0 to disable the search opera-
tion. 100% is the motor base
voltage.
Sets the motor rated slip in Hz
units.
These set values will become the
reference values for slip com-
pensation.
This constant is automatically
set during autotuning.
Set the rated output of the motor
in units of 0.01 kW.
This constant is automatically
set during autotuning.
Control Methods
Change
Setting Factory during
Range Setting Opera-
V/f
tion
0 or 1 0 No A
0.0 to
0.7
Yes No
10.0
*1
0.00 to
0.50 s
Yes No
10.00
*2
288.20
0.00 to
No A
*3
655.00
*4
0 to
20 ms No A
2000
0 to 100 0% No A
0.00 to
2.90 Hz
No A
20.00
*4
0.00 to
0.40 kW
No Q
650.00
*4
MEMO
Open
BUS
V/f Flux
Loop
Regis-
with Vec-
Vec-
ter
PG tor
tor
A A A 1CCH
No A A 1CDH
No A A 1CEH
A No No 1CFH
A No No 1D0H
A No No 1D1H
A A A 30FH
Q Q Q 318H