YASKAWA iQpump Micro CIMR-PW Series User Manual page 150

5.4 d: Reference Settings
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 using more than one Jump frequency, make sure that d3-01 ≥ d3-02 ≥ d3-03.
d4: Frequency Hold and Up/Down 2 Function
u
d4-01: Frequency Reference Hold Function Selection
n
This parameter is effective when either of the digital input functions listed below is used.
• Accel/decel ramp hold function (H1-oo= A)
• Up/Down function (H1-oo = 10 and 11, sets the frequency reference by digital inputs)
• Up/Down 2 function (H1-oo = 75/76, adds a bias to the frequency reference using digital inputs)
Parameter d4-01 determines whether the frequency reference or the frequency bias (Up/Down 2) value is saved when the Run
command is cleared or the power supply is shut down.
No.
d4-01
The operation depends on with what function parameter d4-01 is used.
Setting 0: Disabled
• Acceleration Hold
The hold value will be reset to 0 Hz when the Run command is canceled or the drive power is switched off. The active
frequency reference will be the value the drive uses when it restarts.
• Up/Down
The frequency reference value will be reset to 0 Hz when the Run command is canceled or the drive power is switched off.
The drive will start from 0 Hz when restarted.
• Up/Down 2
The frequency bias is not saved when the Run command is switched off or 5 s after the Up/Down 2 command has been
released. The Up/Down 2 function will start with a bias of 0% when the drive is restarted.
Setting 1: Enabled
• Acceleration Hold
The last hold value will be saved when the Run command or the drive power is switched off. The drive will use the value
that was saved as the frequency reference when it restarts. The accel/decel hold input must be enabled the entire time or else
the hold value will be cleared.
150
Output
frequency
Frequency 3
Figure 5.32 Jump Frequency Operation
Parameter Name
Frequency Reference Hold Function Selection
Frequency
reference
decreases
Jump
Frequency
Width (d3-04)
Jump
Frequency
Width (d3-04)
Jump Jump
Frequency 2 Frequency 1
d3-03 d3-02 d3-01
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual
Frequency
reference
increases
Jump
Frequency
Width (d3-04)
Frequency
Jump
reference
Setting Range
0 or 1
Default
0