u
E1: V/f Characteristics
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E1-01: Input Voltage Setting
Set the input voltage parameter to the nominal voltage of the AC power supply. This parameter
adjusts the levels of some protective features of the drive (overvoltage, Stall Prevention, etc.).
NOTICE: Set parameter E1-01 to match the input voltage of the drive. Drive input voltage (not motor voltage)
must be set in E1-01 for the protective features of the drive to function properly. Failure to comply could result
in improper drive operation.
No.
Parameter Name
Setting Range
Default
Input Voltage Setting
155 to 255 V
200 V
<1>
E1-01 Related Values
The input voltage setting determines the over-/undervoltage detection level and the operation
levels of the braking transistor.
Voltage
Setting Value of E1-01
(Approximate Values)
ov Detection
Level
BTR Operation
Level
Uv Detection Level
200 V Class
All settings
410 V
394 V
190 V
(single-phase = 160 V)
400 V Class
Setting
≥
400 V
820 V
788 V
380 V
Setting < 400 V
740 V
708 V
350 V
Note:
The braking transistor operation levels are valid for the drive internal braking transistor. If an external
CDBR braking chopper is used, refer to the instruction manual of that unit.
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V/f Pattern Settings
The drive utilizes a set V/f pattern to determine the appropriate output voltage level for each
relative to the frequency reference.
V/f Pattern Setup for V/f Control
1.
Set the input voltage for the drive. Refer to E1-01: Input Voltage Setting on page
.
2.
Set the V/f pattern. Refer to V/f Pattern Settings E1-04 to E1-10 on page
.
4.5 Basic Operation
YASKAWA ELECTRIC TOEP C710606 25D YASKAWA AC Drive J1000 Installation & Start-Up Manual
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4
Start-Up Programming & Operation
