5.5 E: Motor Parameters
The availability of the following parameters depends on the control mode.
No.
V/f
OLV
CLV
CLV/PM
E 1-07
Yes
Yes
N /A
N /A
E1-08
Yes
Yes
N /A
N /A
E1-10
Yes
Yes
N /A
N /A
E1-11
Yes
Yes
Yes
N /A
E1-12
Yes
Yes
Yes
N /A
E1-13
Yes
Yes
Yes
N /A
Note:
O u tp u t V o lta g e (V )
1.
2.
3.
4.
F r e q u e n c y (H z )
F ig u r e 5 .1 3 V/f P a tte r n
The following condition m ust be true w hen setting up the V /f pattern: E1-09 < E1-07 < E1-06 < E1-11 < E1-04
To make the V /f pattern a straight line below E1-06, set E1-09 = E1-07. In this case the E1-08 setting is disregarded.
E1-03 is unaffected w hen the param eters are initialized using param eter A 1-03, but the settings for E1-04 through E1-13 are returned
to their default values.
Param eters E1-11, E1-12, and E1-13 should only be used to fine-tune the V /f pattern in the constant output range. These parameters
rarely need to be changed.
♦ E2: Motor Parameters
These parameters contain the motor data for induction motors. They are set automatically when Auto-Tuning is
performed (this includes Rotational Auto-Tuning, Stationary Auto-Tuning 1 and 2). If Auto-Tuning cannot be performed,
refer to
Auto-Tuning Fault Detection on page 260.
N ote: A s the m otor parameters for a PM m otor are set up in the E 5 -D D param eters, param eters for induction motors (E 2 -D D ) are
hidden when a PM m otor control mode is selected (i.e., param eter A 1-02 is set to 7).
■ E2-01: Motor Rated Current
Used to protect the motor and calculate torque limits. Set E2-01 to the full load amps (FLA) stamped on the motor
nameplate. If Auto-Tuning completes successfully, the value entered to T1-04 will automatically be saved to E2-01.
No.
Parameter Name
Setting Range
Default
E2-01
Motor Rated Current
10% to 200% o f the drive rated current.
Determined by o2-04
N ote: 1. The display resolution depends on the rated output pow er o f the drive. M odels CIM R -LD 2A 0018 to 2A0033 and CIMR-LIH4A0009
to 4A 0018 display values in 0.01 A units, while models CIMR-LIH2A0047 to 2A0415 and CIMR-LIH4A0024 to 4A 0216 display
values in 0.1 A units.
2. Setting the m otor rated current in E2-01 low er than the m otor no-load current in E2-03 will trigger an oPE02 error. Set E2-03
correctly to prevent this error.
■ E2-02: Motor Rated Slip
Sets the motor rated slip in Hz to protect the motor and calculate torque limits. This value is automatically set during
Auto-Tuning (Rotational Auto-Tuning, Stationary Auto-Tuning 1 and 2).
No.
Parameter Name
Setting Range
Default
E 2-02
Motor Rated Slip
0.00 to 20.00 Hz
Determined by o2-04
■ E2-03: Motor No-Load Current
Set the no-load current for the motor in amperes when operating at the rated frequency and the no-load voltage. The drive
sets E2-03 during the Auto-Tuning process (Rotational Auto-Tuning and Stationary Auto-Tuning 1, 2). The motor no
load current listed in the motor test report can also be entered to E2-03 manually. Contact the motor manufacturer to
receive a copy o f the motor test report.
No.
Parameter Name
Setting Range
Default
E2-03
Motor N o-Load Current
0 to [E2-01]
Determined by o2-04
N ote: The display resolution depends on the rated output power o f the drive. M odels CIM R -LD 2A 0018 to 2A0033 and CIMR-
L D 4A 0009 to 4A 0018 display values in 0.01 A units, w hile models C IM R -LD 2A 0047 to 2A0415 and C IM R -LD 4A 0024 to
4A 0216 display values in 0.1 A units.
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YASKAWA ELECTRIC SIEP C710616 33D YASKAWA AC Drive L1000A Technical Manual