October 2, 2018

Tokyo Branch of Ichikawa

Introduction of fan/pump-specific high density
magnet type IPM motor

VPM series
IE4-equvalent VPM series
Input power source: 200, 400
volts class
Output capacity: 0.4 to 55 kW(Up to 45 kW for 1000/1200)
Rated rotation:
1000/1200 (6P-equivalent)
1500/1800 (4P-equivalent)
3000/3600 (2P-equivalent)
Structure: Totally-enclosedfan-cooled indoor and outdoor
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Tokyo Branch of Ichikawa

October 2, 2018

Features of VPM motor
Conceptual drawing

Stator core
Stator winding
Motor shaft

Motor inputpower

Induction motor output

Mechanical loss Iron loss

Rotor core
Permanentmagnet

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Primary
Secondarycopper loss copper loss Permanent magnet type synchronous motor (IPMmotor)
The permanent magnet prevents the passage of
secondary current through the rotor, which generates
no loss in the rotor.
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October 2, 2018

Principle of VPM motor
Principle of synchronous motor

StatorThe IPM motor rotates in a complete proportion to the frequency of the inverter. Due to its
excellent efficiency, a large number of IPM motors are adopted for usage for energy saving.
 Principle
The motors consists of the stator (stationary side) and the rotor (rotation side). The
stator has a three-phase winding to produce a three-phase rotating magnetic field (Ns= 120f /p) as with the induction motor. The relationship can be modeled the N and S
magnetic poles rotating outside and the n and s magnetic poles of the rotor as shownin the picture. As the N and S poles of the stator side rotate, the n and s magneticpoles are sucked and rotate at the same speed. The motors is call synchronous motor
as it rotates synchronously.
 Reason why not operated by commercial power source

NsnSRotor

If the commercial power source is turned on with the motor stopped, the position of themagnetic poles of the rotor side and stator side (n and s poles) cannot be specified.
This cause a loss of synchronization of the motor and results in improper operation.
When activating the synchronous motor, therefore, the inverter exercises control for
proper operation by searching the magnetic poles of the rotor side and stator side.

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October 2, 2018

Efficiency value (%)

Regulations of IEC standard (InternationalElectrotechnical Commission)

Output (kW)

Motor efficiency exceeding that of the premium efficiency-ready standard induction motor conforming toIEC6004-30 Ed.2 has been achieved.
(Equivalent to IE4 super premium efficiency conforming to IEC60034-30 Ed.2 under discussion of revision atpresent)
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March 27, 2014

Energy-saving effect of VPM No.1
 Energy-saving effect (Example of 200 volts 7.5 kW)
The top runner motor expectedly yields a loss reduction effect of about 35% in comparison with IE1-level motor
while the VPM motor about 65%.
モータの効率及び損失低減率
Efficiency
and loss reduction ratio of motor
96
9 4 .3796.5

1000

loss reduction
effect 65%

800
60086

Loss of motor (%)

Efficiency of motor (%)

955.5
8 8 .7()82

モ9 0 .4

タ 90の効 88
率
86%
84ーー

1200

モ 92

タの損
失W

Standardmotor

Highefficiency
motor

427.5

Top runner

VPM

80400)

1220.91400(942000IE1

IE2IE3IE4 class
IE4クラス

効率クラス
Efficiencyclass

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October 2, 2018

Energy-saving effect of VPM No.2
Square reduced torque characteristic: Total efficiency of inverter operation at 5.5 kWStandard motor

Total efficiency (%)

High-efficiency motor

Frequency bandcommonly used in air
conditioner

For VPM, the frequency is converted to 60 Hz because it is 90 Hz with 6P.
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October 2, 2018

Energy-saving effect of VPM No.3
standard motor and530
thousandyen is saved!

220
thousandyen

24 Ton750 thousand yen

Comparison between

VPM motor 5.5 kW

17-tonreduction!

7.1
ton

Calculation conditions
1) Electric power energy is calculated under continuous operation for 24 hours/day and 365 days/year. 2) For VPM motor drive, efficiency of inverter istaken into consideration.
3) Commercial operation is conducted by control with the pump valve/damper at 60% of flow rate/air flow rate. VPM motor drive is conducted by frequency
control at the same flow rate/air flow rate as commercial operation.
4) Running cost is calculated with a power charge of 16 yen/kWh.
5) CO2 emission factor = 0.51 kg CO2/kWh End-user CO2 exhaust basic unit not reflecting Kyoto mechanism credit, etc.

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October 2, 2018

Torque characteristic of VPM
Torque(ratedpercentage:%)
トルク（定格比：％）Exampleof allowable torque (0.4-7.5 kW)
許容トルク（0.4‐7.5kW）の例
Allowable
許容連続トルク
continuous
torque160

Maximum torque
最大トルク140120100806040200020406080

100120140160

定格比： ％）%)
RPM回転速度（(rated percentage:Capacity band: 0.4 to 55 kW Rated rotation: 1000/1200/1500/1800/3000/3600* Up to 45 kW for 1000/1200 rpm

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Tokyo Branch of Ichikawa

VPM fan usage
You can use the motor in axial and subaxial directions inaccordance with the usage of the fan. The motor iscompletely creep proof.

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October 2, 2018

Tokyo Branch of Ichikawa

Replacement work efficiency of VPM
Because the connecting dimension is identical to that of thestandard motor (Japan), replacement work with the existing motor
is easy.
Standard motors such as IE1 and IE2 can be replace with VPM easily.

Standard motor IE1, and IE2Building Automation DrivePump
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October 2, 2018

Tokyo Branch of Ichikawa

VPM outside dimensions

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October 2, 2018

Tokyo Branch of Ichikawa

VPM outside dimensions table

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Tokyo Branch of Ichikawa

October 2, 2018

Model sign of VPM
VPM motor name plate

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October 2, 2018

VPM-specific inverter
V1000, A1000 series manufactured
by Yaskawa

S15-VPM , AS1-VPM manufactured
by Toshiba

The working range and characteristics of the motor differ depending on theinverter selected.
When selecting the inverter, please contact us.
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October 2, 2018

Contact information
ICHIKAWA Co., Ltd.
Tokyo Branch: 3-5-12, Iwamoto cho, Chiyoda-ku, Tokyo 101-0032

TEL: 03-5833-7878

Head Office: 3-17, Komachi, Naka-ku, Hiroshima City, Hiroshima

TEL: 082-246-3500

Osaka Branch: 4-1-7, Honmachi, Chuo-ku, Osaka City, Osaka

TEL: 06-4708-6007

Fukuyama Sales Office: 1-7-26, Noujima, Fukuyama City, Hiroshima

TEL: 084-948-6152

Okayama Sales Office: 1-1-1, Shimoishii, Kita-ku, Okayama City, Okayama

TEL: 086-232-8825

Oita Sales Office: 2672-1, Oaza Joharu, Oita City, Oita

TEL: 097-528-9078

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