Yaskawa AC Drive Z1000 AC Drive HVAC Fan - Manual (Page 66)

Output Voltage (V)
Frequency (Hz)
E1-05
E1-12
E1-13
E1-08
E1-10
E1-09 E1-07 E1-06 E1-11 E1-04
Figure 1.29 V/f Pattern
Note: 1. The following condition must be true when setting up the V/f pattern: E1-09 ≤ E1-07 < E1-06 ≤ E1-11 ≤ E1-04
2. To make the V/f pattern a straight line below E1-06, set E1-09 equal to E1-07. In this case the E1-08 setting is disregarded.
3. E1-03 is unaffected when the drive is initialized, but E1-04 through E1-13 return to their default values.
4. Only use E1-11, E1-12, and E1-13 to fine-tune the V/f pattern in the constant output range. These parameters rarely need to be changed.
u E2: Motor 1 Parameters
These parameters contain the motor data needed for motor 1. Enter the motor data into these parameters when Auto-Tuning
cannot be performed.
Note: The function for switching between two motors cannot be used with a PM motor. E2-oo parameters are hidden when OLV/PM control
mode is selected (A1-02 = 5).
n E2-01: Motor Rated Current
Provides motor control, protects the motor, and calculates torque limits. Set E2-01 to the full load amps (FLA) stamped on
the motor nameplate.
No. Parameter Name Setting Range Default
E2-01 Motor Rated Current
10% to 200% of the drive
rated current
Determined by
o2-04
Note: 1. Display is in the following units: 5A0007 to 5A0017: 0.01 A units; 5A0022 to 5A0242: 0.1 A units.
2. An oPE02 error will occur if the motor rated current in E2-01 is set lower than the motor no-load current in E2-03. Set E2-03 correctly
to prevent this error.
n E2-02: Motor Rated Slip
Sets the motor rated slip in Hz to provide motor control, protect the motor, and calculate torque limits.
No. Parameter Name Setting Range Default
E2-02 Motor Rated Slip 0.00 to 20.00 Hz
Determined by
o2-04
If Auto-Tuning cannot be performed, calculate the motor rated slip using the information written on the motor nameplate and
the formula below:
E2-02 = f - (n × p)/120
(f: rated frequency (Hz), n: rated motor speed (r/min), p: number of motor poles)
n 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 of the
motor test report.
No. Parameter Name Setting Range Default
E2-03 Motor No-Load Current 0 to [E2-01]
Determined by
o2-04
Note: Display is in the following units: 5A0007 to 5A0017: 0.01 A units; 5A0022 to 5A0242: 0.1 A units.
1.5 E: Motor Parameters
66 YASKAWA ELECTRIC SIEP YAIZ1U 03A YASKAWA AC Drive – Z1000 Programming Manual