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POWER-UP/COMMISSIONING
4
P21 -Motor Current Setting:
Motor overload protection (Standard: OFF)
This setting is set OFF at factory. This means that it is
disabled and there is no motor overload protection. For
an efficient motor protection, set as described in Section
6.5.1 of this manual.
P25 - Thermal classes of the overload protection:
Selects the class of the overload protection suitable for
the motor application (Factory Setting: 30)
According to the thermal class curves in Section 6.5.2.
Class 30 takes the longest time to activate the motor
overload protection.
To achieve a correct setting of this thermal class, proceed
as follows:
1. Verify the motor data sheet the locked rotor time
and the starting current (I
p
/I
n
) for DOL tarting. Select
a thermal class that in this condition trips in a time
shorter (Section 6.5.2 - Figure 6.10) than the
indicated motor data.
2. Also check, if the selected thermal class, as
described above, allows to start with reduced
current. In this case, the actuation time, according
to chart in Figure 6.10 - Item 6.5.2 - must be longer
than the starting time of this motor with Soft-Starter.
P26 - Motor service factor:
Also applied for motor overload protection
(Standard: 1.00), obtained from motor nameplate.
P28 - Selection of the Operation Mode:
It defines the connection type of the Soft-Starter to
the motor (standard: OFF = standard connection).
The Soft-Starter SSW-03 Plus can be connected in two
ways to the motor: standard connection or connected
within motor delta connection, as described in item
6.4.1 of this manual.
