YASKAWA A1000 Technical Manual page 99

Frequency
reference
Multi-step Speed Ref. 1
Multi-step Speed Ref. 2
Multi-step Speed Ref. 3
Multi-step Speed Ref. 4
Jog Reference
n E1-01: Input Voltage Setting
Adjusts the levels of some protective features of the drive (overvoltage, Stall Prevention, etc.). Set this parameter to the nominal
voltage of the AC power supply.
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 to function properly. Failure to set the correct drive input voltage will result in improper drive operation.
No.
E1-01
<1> Values shown are specific to 200 V class drives. Double the value for 400 V class drives. Multiply the value by 2.875 for 600 V class drives.
E1-01 Related Values
The input voltage setting determines the overvoltage and undervoltage detection levels, the operation levels of the braking
transistor, the KEB function, and the overvoltage suppression function.
Voltage Setting Value of E1-01
200 V Class All settings
setting ≥ 400 V
400 V Class
setting < 400 V
600 V Class All settings
Note: The braking transistor operation levels are valid for the drive internal braking transistor. When using an external CDBR braking chopper, refer
to the instruction manual of that unit.
n V/f Pattern Settings (E1-03)
The drive uses a V/f pattern to adjust the output voltage relative to the frequency reference. There are 15 different predefined
V/f patterns (setting 0 to E) from which to select, each with varying voltage profiles, saturation levels (frequency at which
maximum voltage is reached), and maximum frequencies. Additionally, one custom V/f pattern is available (setting F) that
requires the user to create the pattern using parameters E1-04 through E1-10.
YASKAWA ELECTRIC TOEP C710616 41B YASKAWA AC Drive - A1000 Quick Start Guide
d1-05
d1-04
d1-01
(A3)
d1-02
(A2)
d1-01
(A1)
FWD (REV) Run/Stop
ON ON
ON
Figure 4.20 Preset Reference Timing Diagram
Parameter Name
Input Voltage Setting
Uv Detection Level
(L2-05)
190 V
380 V
350 V
475 V
d1-14
d1-13
d1-12
d1-07
d1-06
ON
ON
ON ON
ON
ON
ON
Setting Range
155 to 255 V
(Approximate Values)
Desired DC Bus Voltage
during KEB (L2-11)
260 V
500 V
460 V
635 V
4.6 Basic Drive Setup Adjustments
d1-16
d1-15
d1-17
ON
ON
ON
ON
ON
Default
<1>
230 V
ov Suppression /
Stall Prevention Level
(L3-17)
375 V
750 V
750 V
930 V
Time
<1>
4
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