CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
130
Range
[Factory Setting]
Parameter
Unit
Description / Notes
This function, when enabled, ensures protection against undercur-
rent before By-pass closing and preventing By-pass closing in case
of any supply line fault of any thyristor.
When this function is disabled, the motor can be started with nominal
current lower than 10% of the nominal Soft-Starter current.
NOTE!
This function should be disabled only when motors with low
currents are tested.
P616
(1)
0 to 1
Undercurrent Before
[ 1=Active ]
By-pass Closing
-
When this function is enabled it ensures protection against locked
rotor at the end of the start and it prevents the By-pass closing when
an overcurrent two times the nominal motor current is detected.
NOTE!
Disable this function only when the motor can withstand loads
with higher currents.
P617
(1)
Locked Rotor at the
Start End
0 to 1
[ 1=Active ]
-
The function of this parameter is to protect loads that can be run
only in one direction of rotation. When this function is enabled, only
the phase sequence R/1L1, S/3L2, T/5L3 is permitted.
When this function is enabled, the phase sequence is detected every
time the motor is powered-up.
The function is very useful for driving hydraulic pumps which can
be operated only in one direction of rotation.
P620
(1)
0 to 1
RST Phase Sequence
[ 0=Inactive ]
-
Its function is to protect the motor when a short circuit occurs in the
power circuit of the SSW-06 Soft-Starter, thyristors or by-pass with the
motor stopped, that is, without the Run command.
NOTE!
This protection will only be actuated through contactor (K1) or
circuit breaker (Q1) of the power isolation (Item 3.3), and it is
P622
(1)
0 to 1
Short circuit in the
[ 0 = Inactive ]
SSW power
The ground fault values are adjusted in percentage of the Soft-Starter
nominal current.
P618 adjusts the maximum instantaneous value of current imbalance
at which the motor can operate without problems during the time
adjusted in P619. After this time has elapsed the Soft-Starter is
disabled indicating ground fault E11.
This protection works only during full voltage operation.
NOTE!
This protection does not replace earth fault relays that are
normally used for human life protection and have low trip levels.
P618
(1)
10 to 30
Ground Fault
[ 20 ]
1% In of the SSW
P619
(1)
0 to 10.0
Ground Fault Time
[ 0=Inactive ]
0.1s
Its function is to indicate imperfection in the opening of the by-pass
contactor when the motor has been switch off, indicating By-pass
Contactor Closed fault E77. The fault is indicated with by-pass in-
ternal or external.
NOTE!
Disable this protection only to make possible the use of the
SSW-06 in multimotor applications, that is, when a SSW-06
starts more than a motor.
P621
(1)
By-pass Contactor
Closed
0 to 1
[ 1=Active ]
Summary of Contents for SSW06
Page 2: ......
