Drive derating data, Single-phase derating, A.4 drive derating data – Yaskawa iQpump1000 AC Drive Quick Start User Manual

Page 317

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A.4 Drive Derating Data

The drive can be operated at above the rated temperature, altitude, and default carrier frequency by derating the drive capacity.

u

Single-Phase Derating

iQpump1000 drives are compatible for use with both three-phase and single-phase input power supplies. The drive output to

the motor is always three-phase, regardless of number of input phases.
Output capacity to the motor is derated when using single-phase input power and the drive firmware includes protection for

single-phase input applications. This protection is enabled by default. Disabling this protection for single-phase input

applications can void warranty and result in premature failure.
Selection of larger models always results in greater output capacity to the motor when supplying the drive with three-phase

input power. However, the selection of larger models does not always yield greater output capacity when using the drive with

single-phase input power.
Several factors affect the amount of derated drive output capacity when single-phase input power is supplied to the drive, such

as:
• single-phase input voltage level
• motor voltage rating
• amount of input impedance.
The tables in this section assist in model selection by considering factors that affect the amount of derating in single-phase

input power applications. There are two sizing methods based on the maximum load applied to the motor. Sizing Method A

provides continuous full power and Sizing Method B may allow the connection of a larger motor compared to Method A, but

the load is limited to 86% motor power, which is often (but not always) adequate for fan and pump loads.

n

Single-Phase Input Sizing Method A (Continuous Full Power)

Use single-phase input Sizing Method A for applications requiring more than 86% motor power. The Output Capacity Motor

FLA listed in the tables allows for a 120% overload for 60 seconds. Contact Yaskawa if assistance is needed in selecting drive

models for heavy duty/single-phase applications with higher overload requirements.

Note:

Adding more impedance than is specified will degrade performance.

Table A.13 Sizing Method A, 240 V Single-Phase Input (-5% to +10%), 230 V Three-Phase Motor

Drive

Model

Without Additional Impedance

With Additional Impedance

(use either DC type or AC type)

Output Capacity

Single Phase

Input Load

Yaskawa Reactor Part

Number

Output Capacity

Single Phase

Input Load

Motor

Power

(HP)

Motor

FLA

Power

(kVA)

Current (A)

DC Type

AC Type

Motor

Power

(HP)

Motor

FLA

Power

(kVA)

Current (A)

2A0004

0.33

1.52

0.99

4.3

URX000043

URX000303

0.5

2.2

0.94

4.1

2A0006

0.5

2.2

1.3

5.7

URX000043

URX000303

0.75

3.2

1.3

5.7

2A0008

0.75

3.2

1.7

7.7

05P00620-0113

URX000307

1

4.2

1.6

7.2

2A0010

0.75

3.2

1.8

7.7

05P00620-0113

URX000311

1

4.2

1.8

7.8

2A0012

1

4.2

2.3

10

URX000048

URX000316

2

7.5

2.9

13

2A0018

2

6.8

4.3

19

05P00620-0120

URX000319

3

9.6

4.3

19

2A0021

2

6.8

4.3

19

05P00620-0120

URX000323

3

9.6

4.4

19

2A0030

2

6.8

4.5

20

05P00620-0120

URX000323

3

9.6

4.4

19

2A0040

3

9.6

6.2

27

05P00620-0124

URX000323

5

15.2

6.7

30

2A0056

5

15.2

9.9

43

URX000059

URX000326

7.5

22

9.6

42

2A0069

5

15.2

10

45

URX000063

URX000332

10

28

13

56

2A0081

10

28

18

79

URX000072

URX000338

15

42

19

84

A.4 Drive Derating Data

YASKAWA TOEP YAIP1W 01B YASKAWA AC Drive - iQpump1000 Quick Start Guide

317

A

Specifications

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