D4: frequency reference hold function, D7: offset frequency – Yaskawa Z1000U HVAC Matrix Bypass User Manual
Page 319

No.
(Addr.
Hex)
Name
LCD Display
Description
Values
Page
d3-03
(0296)
Jump Frequency 3
Jump Freq 3
Eliminates problems with resonant vibration of the motor/
machine by avoiding continuous operation in predefined
frequency ranges. The drive accelerates and decelerates the
motor through the prohibited frequency ranges.
Setting 0.0 disables this function.
Parameters must be set so that d3-01 ≥ d3-02 ≥ d3-03.
Default: 0.0 Hz
Min.: 0.0
Max.: 400.0
d3-04
(0297)
Jump Frequency Width Jump Bandwidth
Sets the dead-band width around each selected prohibited
frequency reference point.
Default: 1.0 Hz
Min.: 0.0
Max.: 20.0
u
d4: Frequency Reference Hold Function
No.
(Addr.
Hex)
Name
LCD Display
Description
Values
Page
d4-01
(0298)
Frequency Reference
Hold Function Selection
Fref Hold Sel
0: Disabled
1: Enabled
0: Disabled.
Drive starts from zero when the power is switched on.
1: Enabled.
At power up, the drive starts the motor at the Hold frequency
that was saved.
Default: 0
Range: 0, 1
–
d4-10
(02B6)
Up/Down Frequency
Reference Limit
Selection
Up/Dn LowLim Sel
0: D2-02 or Analog
1: D2-02 Only
0: The lower limit is determined by d2-02 or an analog input.
1: The lower limit is determined by d2-02.
Default: 0
Range: 0, 1
–
u
d7: Offset Frequency
No.
(Addr.
Hex)
Name
LCD Display
Description
Setting
Page
d7-01
(02B2) Offset Frequency 1
Offset Freq 1
Added to the frequency reference when the digital input
“Frequency offset 1” (H1-oo = 44) is switched on.
Default: 0.0%
Min.: -100.0
Max.: 100.0
–
d7-02
(02B3) Offset Frequency 2
Offset Freq 2
Added to the frequency reference when the digital input
“Frequency offset 2” (H1-oo = 45) is switched on.
Default: 0.0%
Min.: -100.0
Max.: 100.0
–
d7-03
(02B4) Offset Frequency 3
Offset Freq 3
Added to the frequency reference when the digital input
“Frequency offset 3” (H1-oo = 46) is switched on.
Default: 0.0%
Min.: -100.0
Max.: 100.0
–
B.5 d: References
YASKAWA SIEP YAIZ1D 01A Z1000U HVAC MATRIX Drive Bypass Technical Manual
319
B
Parameter List