Basic Installation and Operation Guide
TE Series Digital Solid State Soft Starters 18 – 1250A
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Phase Rotation Protection:
The
TE Series
is set up to monitor an expected phase rotation and will
trip if this changes. Control of this feature is divided into two categories:
On-Off and Expected Sequence. The default setting is On, with an
Expected Sequence of A-B-C.
The ability to turn this feature ON or OFF is useful in applications where
the
TE Series
starter is going to be used downstream from an existing
reversing contactor / starter, or to avoid conflicts with other protection
devices.
Rotation Trip On-Off Control
Decimal value = 1 (b 00000001)
If this feature is On (default setting) and you want to turn it Off,
Subtract 1 from F051. If this feature is Off and you want to turn it On,
add 1 to F051.When set to On, a trip will occur when the Expected
Sequence (see below) is incorrect.
On large motors where large multiple cables are used, it may be easier
to change the Expected Sequence in the
TE Series
starter rather than to
swap the cables.
Expected Phase Rotation Sequence
Decimal Value = 2 (b 00000010)
The A-B-C rotation is the default setting. To change to A-C-B,
subtract 2 from F051. To change from A-C-B rotation to A-B-C, add 2
to F051.
If the Rotation Trip is set to Off (see above), this setting is ignored.
Phase Current Loss (Running) Protection:
This feature will cause a Trip if the current in any phase (or all 3) is less
than 12% of the CT value after 3 seconds from a Start Command. (Note
that this is based on the Max Amp rating and not the programmed FLA).
Turn it OFF if the motor no-load current is exceptionally low such as in
high inertia machines, or
if you are testing a large starter with a small
motor
.
Phase Loss (Running) Protection
Decimal Value = 4 (b 00000100)
This feature is On (default setting).To turn it Off, Subtract 4 from
F051. If this feature is Off and you want to turn it On, add 4 to F051.
Shorted SCR Lockout protection:
This feature will cause a Lockout if at least one SCR is shorted, based
on the expected voltage drop across the SCR assembly when the unit is
OFF. (Note- A shorted SCR cannot be detected while the unit is running
or in Bypass mode). If qualified personnel knowing the ramifications of
having a shorted SCR issue requires an emergency restart, this feature
can be turned to OFF. This is not the same as a Shunt Trip circuit (see
below). This is a lockout of the NEXT start command.
Shorted SCR Lockout
Decimal Value = 8 (b 00001000)
This feature is On (default setting).To turn it Off, Subtract 8 from
F051. If this feature is Off and you want to turn it On, add 8 to F051
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