YASKAWA D1000 Series Instruction Manual page 16

i.2 General Safety
Figure i.1
Motor 1 output (kW)
P
=
1
Motor 1 efficiency<2>
Motor 1 output (kW)
P
=
2
Motor 1 efficiency<2>
P
P <2>
– (Motor 1 efficiency
=
2
3
P
= 1/3 of total drive capacity (kW)
4
<1> The drive capacity is the power capacity during a normal operating condition when energy is applied to the motor. The regenerative
capacity is the capacity that is generated when the flow of power is reversed, such as when the drive is decelerated.
16
START
Only one drive connected?
No (more than one, "N" )
Are all of the motors in the
operating cycle ever in a driven or
regenerative state <1>
simultaneously?
No (The driven and
regenerative states
can occur simultaneously.)
Is P the larger of P and P
3 3
No (P is larger.)
4
Select a capacity of P
or higher.
4
END
Figure i.1 Selecting the Converter Capacity
×
Drive 1 efficiency<2>
+
×
Drive 1 efficiency<2> Motor 2
Total drive capacity<1>(or regenerative capacity <1>) (kW)
× ×
<2>
Drive 1 efficiency Motor 1 output (kW) + ... + Motor N efficiency
Total regenerative capacity
YASKAWA ELECTRIC TOEP C710656 07A YASKAWA Power Regenerative Converter - D1000 Instruction Manual
Yes (only one)
Select a capacity of P
END
Yes (All of the motors are in either a driven or
in a regenerative state
Select a capacity of P
<1>
END
Yes (P is larger.)
3
?
4
Select a capacity of P
END
Motor 2 output (kW)
×
efficiency<2> Drive 2 efficiency<2>
<1>
(kW)
D1000
or higher.
1
<1> at any one time.)
or higher.
2
or higher.
3
Motor N output (kW)
+･･･+
×
Motor N efficiency<2>
× ×
<2> <2>
Drive N efficiency Motor N output (kW))
D1000
Drive N efficiency<2>