YASKAWA CIPR-GA50C series Technical Manual page 569

Note:
• If E4-01 ≤ E4-03 [Motor 2 Rated No-Load Current], the drive will detect oPE02 [Parameter Range Setting Error].
• When the drive model changes, the display units for this parameter also change.
–0.01 A: 2001 to 2042, B001 to B018, 4001 to 4023
–0.1 A: 2056 to 2082, 4031 to 4060
The value set for E4-01 becomes the reference value for motor protection, the torque limit, and torque control.
Enter the motor rated current written on the motor nameplate. Auto-Tuning automatically sets the value of E4-01
to the value input for [Motor Rated Current].
■
E4-02: Motor 2 Rated Slip
No.
Name
(Hex.)
E4-02 Motor 2 Rated Slip
(0322)
The value set in E4-02 becomes the base slip compensation value. The drive sets this parameter during Rotational
Auto-Tuning and Stationary Auto-Tuning. If you cannot do Auto-Tuning, use the information written on the
motor nameplate and this formula to calculate the motor rated slip:
E4-02 = f - (n × p) / 120
• f: Motor rated frequency (Hz)
• n: Rated motor speed (min
• p: Number of motor poles
■
E4-03: Motor 2 Rated No-Load Current
No.
Name
(Hex.)
E4-03 Motor 2 Rated No-Load
Current
(0323)
Note:
When the drive model changes, the display units for this parameter also change.
• 0.01 A: 2001 to 2042, B001 to B018, 4001 to 4023
• 0.1 A: 2056 to 2082, 4031 to 4060
You can also manually enter the motor no-load current shown on the motor test report to E4-03. Contact the motor
manufacturer for the motor test report.
Note:
The default setting of the no-load current is for a 4-pole motor recommended by Yaskawa.
■
E4-04: Motor 2 Motor Poles
No.
Name
(Hex.)
E4-04 Motor 2 Motor Poles
(0324)
Auto-Tuning automatically sets E4-04 to the value input for [Number of Motor Poles].
■
E4-05: Motor 2 Line-to-Line Resistance
No.
Name
(Hex.)
E4-05 Motor 2 Line-to-Line
Resistance
(0325)
Note:
This value is the line-to-line resistance for motor 2. Do not use the single-phase resistance to set this parameter.
The drive automatically calculates this value when Auto-Tuning completes successfully. If you cannot do Auto-
Tuning, get the test report from the motor manufacturer. To calculate the motor line-to-line resistance, use the
information shown on the motor nameplate with one of these formulas:
YASKAWA SIEPC71061753A GA500 Technical Manual
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the motor rated slip for motor 2.
-1 (r/min))
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the no-load current for motor 2 in amps when operating at the rated frequency and the no-
load voltage.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the number of poles for motor 2.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the line-to-line resistance for the motor 2 stator windings.
Description
Description
Description
Description
12.6 E: Motor Parameters
Default
(Range)
Determined by o2-04, C6-
01
(0.000 - 20.000 Hz)
Default
(Range)
Determined by o2-04, C6-
01
(0 to E4-01)
Default
(Range)
4
(2 - 120)
Default
(Range)
Determined by o2-04, C6-
01
(0.000 - 65.000 Ω)
569
12