D1000, I.2 general safety – Yaskawa D1000 Series Power Regenerative Converter User Manual
Page 15
i.2 General Safety
YASKAWA ELECTRIC TOEP C710656 07C YASKAWA Power Regenerative Converter - D1000 Instruction Manual
15
Figure i.1
Figure i.1 Selecting the Converter Capacity
<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.
Only one drive connected?
START
Select a capacity of
P
4
or higher.
Are all of the motors in the
operating cycle ever in a driven or
regenerative state
<1>
simultaneously?
Is
P
3
the larger of
P
3
and
P
4
?
Select a capacity of
P
1
or higher.
END
Yes (only one)
Yes (All of the motors are in either a driven or
in a regenerative state
<1>
at any one time.)
Yes (
P
3
is larger.)
No (more than one, “N” )
No (The driven and
regenerative states
<1>
can occur simultaneously.)
No (
P
4
is larger.)
END
Select a capacity of
P
2
or higher.
END
Select a capacity of
P
3
or higher.
END
D1000
P
1
=
Motor 1 output (kW)
Motor 1 efficiency
<2>
×
Drive 1 efficiency
<2>
P
2
=
+
+
･･･+
Motor 1 output (kW)
Motor 1 efficiency
<2>
×
Drive 1 efficiency
<2>
Motor 2 output (kW)
Motor 2 efficiency
<2>
×
Drive 2 efficiency
<2>
Motor N output (kW)
Motor N efficiency
<2>
×
Drive N efficiency
<2>
P
3
=
P
2
– (Motor 1 efficiency
<2>
×
Drive 1 efficiency
<2>
×
Motor 1 output (kW) + ... + Motor N efficiency
<2>
×
Drive N efficiency
<2>
×
Motor N output (kW))
P
4
= 1/3 of total drive capacity (kW)
Total drive capacity
<1>
(or regenerative capacity
<1>
) (kW)
Total regenerative capacity
<1>
(kW)
D1000
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