YASKAWA iQpump Series

YASKAWA TM.iQp.02 iQpump Drive Programming Manual 45
◆ E2 Motor Setup
■ E2-01 Motor Rated Current
Setting Range: 10% to 200%
Factory Default: Model Dependent
The Motor Rated Current parameter (E2-01) is necessary information for the iQpump drive motor protection function. The motor
overload protection parameter L1-01 is enabled by default. In addition, motor rated current is used by the torque compensation function
to insure optimum torque production. Set E2-01 to the full load amps (FLA) value stamped on the motor’s nameplate. During Auto-
tuning, it is required for the operator to enter the motor rated current in parameter T1-04 on the Auto-Tuning menu. If the Auto-tuning
operation completes successfully, the value entered into T1-04 will be also written into E2-01.
For applications employing an iQpump drive that is oversized for the motor, E2-01 may be set as low as 10% of the iQpump drive output
current rating. The AMP value in E2-01, however, must always be greater than the “No Load Current” value in parameter E2-03 or an
OPE02 error will be displayed.
■ E2-03 No Load Current
Setting Range: Model Dependent (see Appendix B)
Factory Default: Model Dependent
Set E2-03 to the motor no-load current at rated voltage and rated frequency. Consult the motor manufacturer for the proper value if the no
load current is not stated on the motor nameplate.
■ E2-04 Number of Motor Poles
Setting Range: 2 to 48 poles
Factory Default: 2 pole
This parameter sets the number of motor poles used for no-flow detection function and for the calculation of RPM-related parameters.
■ E2-05 Motor Line-to-Line Resistance
Setting Range: 0.000 to 65.000 Ω
Factory Default: Model Dependent
Sets the line-to-line resistance of the motor’s stator winding. Usually determined by performing Auto-tuning. If Auto-tuning cannot be
completed without error, then manually set E2-05 to the value as determined by the motor manufacturer. Remember this value must be
entered as line-line and not line neutral.
Phase-to-phase Resistance at
Insulation Class Temperature
273 + (25 + insulation class temperature) /2
273 + insulation class temperature
E2-05 =
)
(
X
Where: Insulation class temperature is in °C