Inputs, Refer – Yaskawa Z1000U User Manual
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C6-03, C6-04, C6-05: Carrier Frequency Upper Limit, Lower Limit, Proportional Gain
Note:
C6-04 and C6-05 are available in V/f Control mode only.
These parameters set a user-defined or a variable carrier frequency. Set C6-02 to F to set the upper and lower limits and the
carrier frequency proportional gain.
No.
Parameter Name
Setting Range
Default
C6-03
Carrier Frequency Upper Limit
4.0 to 10.0 kHz
Determined by
C6-02
C6-04
Carrier Frequency Lower Limit (V/f Control only)
4.0 to 10.0 kHz
C6-05
Carrier Frequency Proportional Gain (V/f Control only)
0 to 99
Setting a Fixed User-Defined Carrier Frequency
A carrier frequency between the fixed selectable values can be entered in parameter C6-03 when C6-02 is set to F.
In V/f Control, adjust parameter C6-04 to the same value as C6-03.
Setting a Variable Carrier Frequency (V/f Control)
In V/f Control, the carrier frequency can be set up to change linearly with the output frequency by setting the upper and lower
limits for the carrier frequency and the carrier frequency proportional gain (C6-03, C6-04, C6-05) as shown in
C6-03
C6-04
E1-04
x C6-05
Output Frequency
Output
Frequency
Max Output Frequency
Carrier Frequency
Figure 4.32 Carrier Frequency Changes Relative to Output Frequency
Note:
When C6-05 is set lower than 7, C6-04 is disabled and the carrier frequency will be fixed to the value set in C6-03.
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d1-01 to d1-04, d1-16, and d1-17: Frequency References 1 to 4, 16, and Jog Frequency
Reference
The drive lets the user switch between up to 5 preset frequency references during run (including the Jog reference) through
the digital input terminals. The drive uses the acceleration and deceleration times that have been selected when switching
between each frequency reference.
The Jog frequency overrides all other frequency references and must be selected by a separate digital input.
The multi-speed references 1 and 2 can be provided by analog inputs.
No.
Parameter Name
Setting Range
Default
d1-01 to d1-04
Frequency Reference 1 to 4
0.00 to 400.00 Hz
<1>
<2>
0.00 Hz
<2>
d1-16
Frequency Reference 16
0.00 to 400.00 Hz
<1>
<2>
0.00 Hz
<2>
d1-17
Jog Frequency Reference
0.00 to 400.00 Hz
<1>
<2>
6.00 Hz
<2>
<1> The upper limit is determined by the maximum output frequency (E1-04) and upper limit for the frequency reference (d2-01).
<2> Setting units are determined by parameter o1-03. The default is “Hz” (o1-03 = 0).
Multi-Step Speed Selection
To use several speed references for a multi-step speed sequence, set the H1-oo parameters to 3 and 4. To assign the Jog
reference to a digital input, set H1-oo to 6.
Notes on using analog inputs as Multi-Speed 1 and 2:
• The first frequency reference (Multi-Speed 1) comes from the source specified in b1-01. When using an analog input terminal
to supply the frequency reference, assign the frequency reference source to the control terminals (b1-01 = 1).
• When an analog input is set to “Auxiliary frequency 1” (H3-02 or H2-06 = 2), the value set to this input will be used as the
Multi-Step Speed 2 instead of the value set to parameter d1-02. If no analog inputs are set for “Auxiliary frequency 1”, then
d1-02 becomes the reference for Multi-Step Speed 2.
Select the different speed references as shown in
illustrates the multi-step speed selection.
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