First Time Power-Up And Start-Up; Preparations For The Start-Up; Procedures For The First Time Power-Up/Start-Up - WEG CFW-11 RB User Manual

5 FIRST TIME POWER-UP AND START-UP

This chapter describes how to:
Check and prepare the converter before power-up.
„
Power-up the converter and check the result.
„

5.1 PREPARATIONS FOR THE START-UP

The converter shall have been already installed according to the recommendations listed in
AND CONNECTION on page
is different from the suggested control connections.
DANGER!
Always disconnect the main power supply before performing any converter connection.

5.1.1 Procedures for the First Time Power-up/Start-up

1. Verify all the panel connections.
2. Search for short-circuits at the input, DC Link, etc.
3. Make sure all the cables are correctly connected between the control and power units.
4. Verify the condition of all the fuses.
5. Inspect all the ground connections (panel, the door where the control is installed, etc.).
6. Remove all the material rests from the converter or panel interior.
7. Close the converter or panel covers.
8. Measure the line voltage making sure it is inside the permitted range.
9. Command the drive, perform the DC link pre-charge and close the main contactor/circuit breaker keeping the
converters always connected to the DC link with the PWM pulses disabled.
10. Verify the proper operation of the fans. The fan control configuration is done via software through the parameter
P0352 (refer to the CFW-11 RB programming manual). The power units do not have internal fans at the electronics,
only at the heatsinks. At the factory default the fans stay on for a while during the energization and then they are
switched off. They will only be switched on again if the heatsink temperature reaches 70 °C (158 ºF), and off if the
temperature drops below 60 °C (140 ºF).
11. Observe the existence of faults/alarms. In case that a fault or alarm occurs, verify the possible causes and
solve the problem.
12. Enable the converter PWM pulses via DI.
13. Verify if the DC link voltage at P0004 presents a value close to P0151.
14. Disable the converter.
15. Verify if the temperature reading parameters of the installed power units, P0800 to P0814 according to the
case, indicate values close to the ambient temperature.
16. Follow the start-up routine of the output inverter according to the instructions described at the specific manual.
3-1. The following recommendations are applicable even if the application design
Powering up and Startup
Chapter 3 INSTALLATION
CFW-11 RB | 5-1
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