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5. Parameter Description
Eaton Electric General Inverters DF1 Series
UMXXXXXXXXE February 2020 www.eaton.com
10-39 is the UV avoidance voltage gain when 10-33=11 or 12; if 10-33=11 or 12, 10-39 is invalid.
•
Undervoltage avoidance function(10-33=11,12):
When setting 10-33=11 or 12, frequency is decreased to prevent an undervoltage from occurring duringdeceleration
at occurrence of power failure.
Adjust the downward frequency slope and the response level via 10-39 UV avoidance voltage gain. Setting a lar-
gevalue improves the response to the bus voltage. But when load inertia is larger, regenerative power is also larger,
please set a smaller value to 10-39.
ote:
N
Power failure time deceleration-to-stopfunction is only applicable for V/F control mode.
5.11.13 VF complete separation
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Voltage given mode, voltage acceleration/deceleration time and voltage deceleration mode in VF complete separation.
Parameter
Name
Factory
Value
Setting Range
Content
10-40
P.700
VF separated voltage source
0
0
Given by digital 10-41(P.701).
1
Given by analog or DIH pulse.
10-41
P.701
VF separated voltage digital
380/440V
0~440V
440V voltage
50Hz (when 00-24=1) / 60Hz (when 00-24=0)
system setting
220V
0~220V
220V voltage
10-42
P.702
VF separated voltage Acc
time
0.0s
0~1000.0s
Time for voltage accelerating from 0 to motor rated voltage.
10-43
P.703
VFseparated voltage Dec
time
0.0s
0~1000.0s
Time for voltage decelerating from motor rated voltage to 0.
10-44
P.704
VF separated Stop selection
0
0
Frequency/voltage independentlydecreases to 0.
1
After the voltage decreases to 0, frequency decreases.
VF complete separation
•
Parameter 10-40~10-44 are valid only when 01-12=14.VF complete separation is applicable to induction heating,
inverse power supply and torque motor control.
•
The voltage source for V/F complete separation is set in the same way as the frequency source, it can be set by
digital or external analog terminal or DIH terminal.
•
Frequency acceleration time of V/F complete separationindicates the time accelerates from 0 to base frequency (01-
06).Frequency deceleration timeindicates the time decelerates from base frequency to0 (01-07); voltage acceleration
time of VF complete separationindicates the time accelerates from 0 to the rated motor voltage. t1 (10-42). Voltage
deceleration time of VF complete separation indicates the time decelerates from the rated motor voltage to0. t2 (10-
43).
