Drive derating data, Single-phase derating, A.4 drive derating data – Yaskawa iQpump1000 AC Drive Quick Start User Manual
Page 317
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.
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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