YASKAWA A1000 Technical Manual

5.4 d: Reference Settings
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual 201
Parameter Details
5
Figure 5.47 shows the relationship between the Jump frequency and the frequency reference.
Figure 5.47
Figure 5.47 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. Whe
n setting more than one Jump frequency, make sure that the parameters do not overlap.
 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 ente
red 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.
<1> In AOLV/PM and CLV/PM control modes, the setting units and range are expressed as a percent (0.0 to 100.0%) instead of in Hz.
<2> In AOLV/PM and CLV/PM control modes, the setting units and range are expressed as a percent instead of in Hz. The Setting range is 0.0 to
40.0% and the default is 1.0%.
No. Parameter Name Setting Range Default
d4-01 Frequency Reference Hold Function Selection 0 or 1 0
Frequency
reference
Output
Frequency
Jump
Frequency
3
(d3-03)
Jump
Frequency
2
(d3-02)
Jump
Frequency
1
(d3-01)
Frequency
reference
decreases
Frequency
reference
increases
d3-04 d3-04
d3-04 d3-04
d3-04 d3-04

YASKAWA A1000 Specifications

General

Type	AC Drive
Series	A1000
Input Voltage	200-240V, 380-480V
Frequency Range	0-400 Hz
Horsepower Range	0.5 to 1000 HP
Power Range	0.4 to 630 kW
Control Method	V/f Control
Overload Capacity	150% for 60 seconds
Braking	Dynamic Braking
Communication	Modbus
Safety	Safe Torque Off (STO)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat
Operating Temperature	-10 to +50°C
Storage Temperature	-20 to 60°C
Humidity	5 to 95% RH (non-condensing)
Enclosure	IP20