WEG SSW-07 Manual Del Usuario página 46

Protection
Description and Activation Description
Fault Display
Electronic When the times given by the
motor overload programmed thermal class
curves exceed the limit.
E05
(LED Overload)
Flashing
Start timeout When the starting time is
during current longer than the time set in the
limit starting acceleration ramp trimpot. Active
only with current limit starting.
E62
(LED Fault)
Flashes twice
(LED Ready)
On
Stall Activates before full voltage, if
the current is greater than twice
E63 the nominal motor current.
(LED Stall)
Flashing
Overcurrent It is only monitored when the
SSW-07 is at full voltage. When
E66 the parameters are set with
the factory default values this
(LED protection trips when the motor
Overcurrent) current exceeds 2 times the
Flashing value adjusted in the trimpot
(Motor Current) for a time longer
than 1 second.
Incorrect phase When the sequence of
sequence synchronism signals
interruptions does not follow the
E67 RST sequence.
(LED Phase
Seq.)
Flashing
Chapter 6 - SOLUtION aND trOUBLeShOOtING
Incorrect setting of the "Motor
Current" trimpot (motor current set).
The set value is too low for the motor
being used.
Starting sequence greater than
allowed.
Programmed thermal class too low.
Time between Off/On procedures
lower than that permitted by the
motor power refrigeration time.
Load on the motor shaft too high.
Thermal protection value saved when
the control is turned off and brought
back when turned back on.
Programmed time for the acceleration
ramp inferior to what is needed.
Value of the programmed current
limitation too low.
Motor locked, rotor blocked.
Programmed acceleration ramp time
lower than the actual acceleration
time.
Motor shaft is locked
The transformer that supplies the
motor can be saturating and taking
too much time to recover from the
starting current.
Momentary motor overload.
Motor shaft is locked, rotor blocked.
Network phase sequence inverted at
the input.
May have been changed in another
place of the supply network.
table 6.1 - Faults and possible causes (cont.)
Probable Causes Reset
Power-on.
Reset key.
Auto-reset.
DIx.
Power-on.
Reset key.
Auto-reset.
DIx.
Power-on.
Reset key.
Auto-reset.
DIx.
Power-on.
Reset key.
Auto-reset.
DIx.
Power-on.
Reset key.
DIx.
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