YASKAWA A1000 Series Technical Manual

5.4 d: Reference Settings
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual 183
Parameter Details
5
Figure 5.44 shows the relationship between the Jump frequency and the output frequency.
Figure 5.44
Figure 5.44 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.
◆ d4: Frequency Reference Hold and Up/Down 2 Function
■ d4-01: Frequency Reference Hold Function Selection
This parameter is effective when either of the digital input functions listed below is used.
• Accel/decel ramp hold function (H1-= A)
• Up/Down function (H1- = 10 and 11)
• Up/Down 2 function (H1- = 75 and 76)
Parameter d4-01 determines whether the frequency reference or the frequency bias (Up/Down 2) value is saved when the
Stop command is entered or the power supply is shut down.
The operation depends on the function used with parameter d4-01.
Setting 0: Disabled
• Acceleration hold
The hold value will be reset to 0 Hz when the Stop command is entered 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 Stop command is entered or the drive power is switched
off. The drive will start from 0 Hz when it is turned back on again.
•Up/Down 2
The frequency bias is not saved when the Stop command is entered, 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 multi-function input terminal set for “Accel/decel
d3-04 Jump Frequency Width 0.0 to 20.0 Hz <1> 1.0 Hz <1>
<1> In AOLV/PM and CLV/PM control modes, the setting units and range are expressed as a percent instead of in Hz.
No. Parameter Name Setting Range Default
d4-01 Frequency Reference Hold Function Selection 0 or 1 0
No.
Parameter Name Setting Range Default
Output
frequency
Frequency
reference
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)
common_TMonly

YASKAWA A1000 Series Specifications

General

Series	A1000
Type	AC Drive
Altitude	Up to 1000m without derating
Output Frequency	0-400 Hz
Control Method	V/f Control
Overload Capacity	150% for 60 seconds
Communication Options	Modbus, DeviceNet, Profibus, Ethernet/IP
Ambient Temperature	-10 to 50°C
Storage Temperature	-20 to 60°C
Humidity	5% to 95% (non-condensing)
Enclosure Rating	IP20
Horsepower	0.5 to 1000 HP
Power Range	0.4 - 630 kW (varies by voltage and model)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat
Cooling Method	Fan Cooled
Safety	Safe Torque Off (STO)