Hitachi WJ C1 Series User Manual

Chapter 8 Mandatory Setting for Motor Drive and Test Run
8-1-14
■ When using a Hitachi standard induction motor
Code
Item
Description
Data
[H002]
*1
Async. Motor constant
selection
Applies Hitachi standard motor
constants ([H020]
*1
to [H024]
*1
).
00
[H020]
*1
Async. Motor constant R1
(primary resistance)
Motor constant parameter of
Hitachi standard induction
motor.
When the IM motor capacity or
the number of IM motor poles is
changed, it is initialized to the
corresponding Hitachi standard
motor constant.
It is also possible to adjust and
change it manually.
0.001 to 65.535 (Ω)
[H021]
*1
Async. Motor constant R2
(secondary resistance)
0.001 to 65.535 (Ω)
[H022]
*1
Async. Motor constant L
(leakage inductance)
0.01 to 655.3 (mH)
[H023]
*1
Async. Motor constant I0 (no-
load current)
0.01 to 655.35 (A)
[H024]
*1
Async. Motor constant J
(moment of inertia)
0.001 to
9999.000 (kgm
2
)
[b033]
Motor cable length code
selection
Parameter that corrects the
current detection accuracy due
to difference in motor cable
length. If the motor constant
cannot be measured correctly,
set higher value.
5 to 20
*1. "2nd-motor control [SET]" target parameter. The second control parameter is also subject to setting.
 The base (maximum) frequency is obtained from the rated speed of the motor (min
-1
) and the
number of poles as follows.
!
Base (maximum) frequency (Hz) =
Rated speed (min
-1
) × Number of poles (poles)
120

Hitachi WJ C1 Series Specifications

General

Brand	Hitachi
Model	WJ C1 Series
Category	Inverter
Language	English