WEG 14105364, User Manual

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Troubleshooting and Maintenance
5 TROUBLESHOOTING AND MAINTENANCE
5.1 FAULTS AND ALARMS
NOTE!
Refer to the ADW300 quick reference and the programming manual for further
information on each fault or alarm.
5.2 SOLUTION FOR THE MOST FREQUENT PROBLEMS
Table 5.1: Solution for the most frequent problems
Problem Point to be Verified Corrective Action
Motor will not
start Incorrect wiring 1. Check all power and control connections
Incorrect settings 1. Check if the parameter values are correct for the
application
Fault 1. Check whether the inverter is disabled due to a fault
condition
Motor stall 1. Decrease the motor overload
2. Increase P136, P137 (V/f)
Motor speed
oscillates Loose connections 1. Stop the inverter, turn off the power supply, check and
tighten all the power connections
2. Check all the internal connections of the inverter
Oscillation of the
external analog
reference 1. Identify the cause of the oscillation. If the cause is electrical
noise, use shielded cables or separate them from the
power or command wiring
2. Interconnect the GND of the analog reference to the
grounding connection of the inverter
Too high or
too low motor
speed Incorrect settings
(reference limits) 1. Check whether the values of P133 (minimum speed) and
P134 (maximum speed) are properly set for the used
motor and application
Motor nameplate 1. Check whether the used motor matches the application
Led is off Power supply voltage 1. Rated values must be within the limits specified below:
200 / 240 V power supply: Min: 170 V - Max: 264 V
110 / 127 V power supply: Min: 93 V - Max: 140 V
Mains supply fuses
open 1. Replace the fuses
5.3 INFORMATION NECESSARY FOR CONTACTING TECHNICAL SUPPORT
For technical support or servicing, it is important to have the following information in hand:
„
Inverter model.
„
Serial number and manufacturing date listed in the product nameplate (refer to Section 2.4
IDENTIFICATION LABEL on page 5 ).
„
Installed Software version (refer to P023).
„
Data on the application and inverter settings.