Troubleshooting - WEG SSW-07 Manual Del Usuario

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Chapter 6 - SOLUtION aND trOUBLeShOOtING

6.2 TROUBLESHOOTING

Problem
Motor does not run
Motor does not reach
nominal speed
Motor rotation oscillates
(fluctuates)
Motor rotation:
Too high or too low
LEDs off
Vibration during
acceleration
50
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NOTES:
In the case of E04 (over temperature), it is necessary to wait a little
before resetting, in order to cool down.
In the case of E05 (motor overload), it is necessary to wait a little
before resetting, in order to cool down.
Points to check
Wrong wiring
Wrong programming
Fault
Motor stall
Loose connections
Motor nameplate data
Check the power supply
voltage of the control
board (A1 and A2)
Soft-Starter Settings
table 6.2 - Solving the most frequent problems
NOTE!
When contacting WEG for service or technical assistance, please
have the following data on hand:
 Model of the Soft-Starter;
 Serial number, production date and hardware revision present in
the identification label of the product (refer to item 2.3);
 Installed software version (refer to item 2.3);
 Application and programming data.
For explanations, training or service, please contact WEG
Automação Service Department.
http://www.automatedpt.com/
Corrective action
Check all the power and command connections.
For example:
The DIx digital inputs programmed as enabling or
external fault must be connected to AC supply.
Check if the parameters are with the correct values
for the application.
Check if the Soft-Starter is not blocked to a detected
fault condition.
Increase the current limit level with the control to limit
the current (refer to table 6.1).
Switch the Soft-Starter and the power supply off and
tighten all the connections.
Check all the internal connections of the Soft-Starter
to make sure they are well connected.
Check if the motor used is in accordance to the
application.
Nominal values must be inside the following limits:
Umin. = 93.5 Vac
Umax.= 264 Vac
Reduce the acceleration ramp time.
Email: [email protected]
Email: [email protected]