WEG SSW-07 Manual Del Usuario página 49

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Chapter 6 - SOLUtION aND trOUBLeShOOtING
Protection
Description and
Fault Display
Electronic
motor overload
E05
(LED Overload)
Flashing
Start timeout
during current
limit starting
E62
(LED Fault)
Flashes twice
(LED Ready)
On
Stall
E63
(LED Stall)
Flashing
Overcurrent
E66
(LED
Overcurrent)
Flashing
Incorrect phase
sequence
E67
(LED Phase
Seq.)
Flashing
48
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Activation Description
When the times given by the
programmed thermal class
curves exceed the limit.
When the starting time is
longer than the time set in the
acceleration ramp trimpot. Active
only with current limit starting.
Activates before full voltage, if
the current is greater than twice
the nominal motor current.
It is only monitored when the
SSW-07 is at full voltage. When
the parameters are set with
the factory default values this
protection trips when the motor
current exceeds 2 times the
value adjusted in the trimpot
(Motor Current) for a time longer
than 1 second.
When the sequence of
synchronism signals
interruptions does not follow the
RST sequence.
table 6.1 - Faults and possible causes (cont.)
http://www.automatedpt.com/
Probable Causes
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.
http://www.automatedpt.com/
Email: charles@automatedpt.com
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.
Email: charles@automatedpt.com