Yaskawa Z1000U User Manual download pdf (Page 159)

Frequency

Reference

Output

Frequency

Jump

Frequency

Width (d3-04)

Jump

Frequency 3

d3-03

Jump

Frequency 2

d3-02

Jump

Frequency 1

d3-01

Frequency

reference

decreases

Frequency

reference

increases

Jump

Frequency

Width (d3-04)

Jump

Frequency

Width (d3-04)

Figure 4.34 Jump Frequency Operation

Note: 1. The drive will use the active accel/decel time to pass through the specified dead band range, but will not allow continuous operation in

that range.

2. When setting more than one Jump frequency, make sure that d3-01≥ d3-02 ≥ d3-03.

E1-03: V/f Pattern Selection

Selects the V/f pattern for the drive and motor from 15 predefined patterns or creates a custom V/f pattern.

No. Parameter Name Setting Range Default

E1-03 V/f Pattern Selection

0 to F

<1>

<2>

<1> Settings 0 through E are not available in OLV/PM (A1-02 = 5).

<2> Parameter is not reset to the default value when the drive is initialized using A1-03.

Setting a Predefined V/f Pattern (Setting 0 to E)

Choose the V/f pattern that best meets the application demands from Table 4.26. These settings are available only in

V/f Control modes. Set the correct value to E1-03. Parameters E1-04 to E1-13 can only be monitored, not changed.

Note: 1. Setting an improper V/f pattern may result in low motor torque or increased current due to overexcitation.

2. Drive initialization does not reset parameter E1-03.

Table 4.26 Predefined V/f Patterns

Setting Specification Characteristic Application

0 50 Hz

Constant torque

For general purpose applications. Torque remains constant

regardless of changes to speed.

1 60 Hz

2 60 Hz (with 50 Hz base)

3 72 Hz (with 60 Hz base)

4 50 Hz, Variable torque 1

Variable torque

For fans, pumps, and other applications where the required

torque changes as a function of the speed.

5 50 Hz, Variable torque 2

6 60 Hz, Variable torque 1

7 60 Hz, Variable torque 2

8 50 Hz, mid starting torque

High starting torque

Select high starting torque when:

• Wiring between the drive and motor exceeds 150 m.

• A large amount of starting torque is required.

9 50 Hz, high starting torque

A 60 Hz, mid starting torque

B 60 Hz, high starting torque

C 90 Hz (with 60 Hz base)

Constant output

Output voltage is constant when operating at greater than

60 Hz.

D 120 Hz (with 60 Hz base)

E 180 Hz (with 60 Hz base)

4.12 Advanced Drive Setup Adjustments

YASKAWA ELECTRIC TOEP C710636 10B Z1000U HVAC MATRIX Drive User Manual

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Start-Up Programming

& Operation

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