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CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
114
Range
[Factory Setting]
Parameter
Unit
Description / Notes
Time of Voltage Unbalance between phases is set as a percentage of
the motor rated current (P400).
P604 sets the maximum voltage difference between the three line
phases at which the motor can operate without problems, during the
time set at P605. If these values are exceeded, the Soft-Starter is
switched Off and the Voltage Unbalance error is displayed.
These settings also activate the phase fault protection during the
starting process and during the operation at full voltage.
NOTE!
This function is active always when motor is running.
P604
(1)
0 to 30
Voltage Unbalance
[ 15 ]
between Phases
1%Un of the Motor
P605
(1)
0 to 99
Voltage Unbalance
[ 1 ]
Between Phases
1s
Time
The Undercurrent and the overcurrent are set as percentage of the
motor rated current (P401).
P610 sets the minimum current level at which the motor can operate
without problems. This protection function acts when the motor current
drops below the value and during a time equal or longer than those
set at P611. If these values are exceeded, the Soft-Starter is switched
Off and the Undercurrent Error is displayed. This function is generally
used in applications with hydraulic pump which can not be operated
without a load.
P612 sets the maximum overcurrent levels that the motor or Soft-
Starter allows during the time set at P613, after which the Soft-Starter
is switched Off and the Overcurrent Error is displayed.
NOTE!
These Functions are only active after the motor start and after full
voltage operation has been reached.
P610
(1)
0 to 99
Immediate
[ 20 ]
Undercurrent
1%In of the motor
P611
(1)
1 to 99
Immediate
[ 0=Inactive ]
Undercurrent Time
1s
P612
(1)
0 to 99
Immediate
[ 20 ]
Overcurrent
1%In of the motor
P613
(1)
1 to 99
Immediate
[ 0=Inactive ]
Overcurrent
1s
Time
Figure 6.24
- Actuation Levels for Overcurrent and Undercurrent
I(A)
0
P610
P612
Start
Nominal
Disable
Enable
Actuation Region
t(s)
I(A)
t
P610
P612
t(s)
Nominal
Fault Action
Fault Action
I(A)
Nominal
t(s)
t
P611
P613
Under Current
Over Current
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