WEG SSW-08 Manual Del Usuario página 49

Solution and Troubleshooting
Protection
Description and
Fault Display
Electronic motor When the times given by the
overload programmed thermal class curves
exceed the limit.
E05
(LED Overload)
Flashing
Start timeout When the starting time is longer than
during current the time set in the acceleration ramp
limit starting trimpot.
Active only with current limit starting.
E62
(LED Fault)
Flashes twice
(LED Ready)
On
Stall Activates before full voltage, if the
6
current is greater than twice the
E63 nominal motor current.
(LED Stall)
Flashing
Overcurrent It is only monitored when the SSW-08 is
at full voltage.
E66
When the parameters are set with the
factory default values this protection
(LED trips when the motor current exceeds
Overcurrent) 3 times the value adjusted in the
Flashing trimpot (Motor Current) for a time
longer than 1 second.
Incorrect phase When the sequence of synchronism
sequence signals interruptions does not follow
the RST sequence.
E67
(LED Phase Seq.)
Flashing
Undervoltage Activates when the control supply
in the control voltage is lower than 93 Vac.
supply
E70
(LED Fault)
Flashes twice
(LED Ready)
Off
44 | SSW-08
Table 6.1: Faults and possible causes (cont.)
Activation Description 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.
Short-circuit between phases.
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.
Motor connection is incorrect.
Electronics supply lower than the
minimum value.
Electronics power supply with loose
contact.
Electronics power supply fuse blown.
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.
Power-on.
Reset key.
Auto-reset.
DIx.