YASKAWA A1000 Series Quick Start Manual page 75

Figure 65
Frequency
reference
Multi-step Speed Ref. 1
Multi-step Speed Ref. 2
Multi-step Speed Ref. 3
Multi-step Speed Ref. 4
Jog Reference
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 to function properly. Failure to set the correct drive input voltage will result in improper drive operation.
No.
E1-01
<1>
<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 undervoltage detection level as well as DC bus levels used by the KEB function
and the overvoltage suppression function.
Setting Value of
Voltage
200 V Class All settings
setting ≥ 400 V
400 V Class
setting < 400 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.
■ V/f Pattern Settings (E1-03)
The drive uses the V/f pattern that has been set to adjust the output voltage relative to the frequency reference. There are
15 different preset V/f patterns (setting 0 to E) to select from, 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). The custom V/f pattern requires the user to create the pattern using parameters E1-04 through E1-
10.
YASKAWA ELECTRIC TOEP C710616 21C 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 65 Preset Reference Timing Diagram
Parameter Name
Input Voltage Setting
Uv Detection Level
E1-01
(L2-05)
4 Start-Up Programming & Operation
d1-13
d1-12
d1-07
d1-06
ON
ON
ON
ON ON
ON
(Approximate Values)
Desired DC Bus Voltage
during KEB (L2-11)
190 V 260 V
380 V 500 V
350 V 460 V
d1-16
d1-15
d1-14
ON ON
ON
ON
ON
ON
Setting Range
155 to 255 V
ov Suppression /
Stall Prevention Level
(L3-17)
d1-17
Time
Default
200 V
375 V
750 V
750 V
4
75