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
E1-01
<1>
Input Voltage Setting 155 to 255 V 200 V
<1> The setting range and default value shown here are for 200 V class drives. Double this for 400 V class units.
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
230.
2.
Set the V/f pattern. Refer to V/f Pattern Settings E1-04 to E1-10 on page 230.
4.5 Basic Operation
YASKAWA ELECTRIC TOEP C710606 25D YASKAWA AC Drive J1000 Installation & Start-Up Manual
107
4
Start-Up Programming
& Operation
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