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Troubleshooting and Maintenance
Fault/Alarm
F183
IGBT Overload +
Temperature.
6.3 SOLUTIONS FOR THE MOST FREQUENT PROBLEMS
Problem
DC Link does not reach
the value set in P0151
Off display
6.4 INFORMATION FOR CONTACTING TECHNICAL SUPPORT
NOTE!
For technical support and servicing, it is important to have the following information in hand:
Converter model.
„
Serial number, manufacturing date, and hardware revision that are listed in the product nameplate
„
(refer to
Installed software version (check parameter P0023).
„
Application data and converter settings.
„
6.5 PREVENTIVE MAINTENANCE
DANGER!
Always turn off the mains power supply before touching any electrical component associated to
„
the converter.
High voltage may still be present even after disconnecting the power supply.
„
To prevent electric shock, wait at least 10 minutes after turning off the input power for the complete
„
discharge of the power capacitors.
Always connect the equipment frame to the protective ground (PE). Use the adequate connection
„
terminal in the converter.
ATTENTION!
6
The electronic boards have electrostatic discharge sensitive components.
Do not touch the components or connectors directly. If needed, first touch the grounded metallic frame
or wear a ground strap.
The converter require low maintenance when properly installed and operated.
main procedures and time intervals for preventive maintenance.
periodic inspections to be performed every 6 months after converter start-up.
6-4 | CFW-11 RB
Description
Overtemperature related to the IGBTs
overload protection.
Table 6.2: Solutions for the most frequent problems
Point to be Verified
Incorrect wiring
1. Check all power and control connections. For instance, the digital inputs set to
connection
start/stop, general enable, or no external fault shall be connected to the 24 Vdc or
to DGND* terminals (refer to
Incorrect settings
1. Check if parameters are properly set for the application
Fault
1. Check if the converter is not blocked due to a fault condition
2. Check if terminals XC1:13 and XC1:11 are not shorted (short-circuit at the 24 Vdc
power supply)
Keypad connections
1. Check the external keypad connections
Open power supply fuse(s) 1. Replace fuses
24 Vdc power supply
1. Check if the 24 Vds control voltage is proper connected and turned on
voltage
Section 2.5 CFW-11 RB MODEL SPECIFICATION (SMART CODE) on page
Do not execute any applied potential test on the CFW11 RB!
If needed, consult WEG.
Possible Causes
Surrounding air temperature too high.
„
Operation with overload.
„
Corrective Action
Figure 3.25 on page
3-31)
Table 6.3 on page 6-5
Table 6.4 on page 6-5
provides recommended
2-12).
presents
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