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CHAPTER 4
4.1 PRE-POWER
CHECKS
This Chapter provides the following information:
how to check and prepare the inverter before power-up;
how to power-up and check for proper operation;
how to operate the inverter when it is installed according to
the typical connections (refer to Section 3.2 - Electrical
Installation).
The inverter shall be installed according to Chpater 3 -
Installation and Connection. If the drive project is different from
the typical suggested connections, follow the procedures
below.
DANGER!
Alaways disconnect the AC input power before making any
connections.
1) Check all connections
Check if the power, grounding and control connections are
correct and well tightened.
2) Check the motor
Check all motor connections and verify if its voltage, current
and frequency match the inverter specifications.
3) Uncouple the load from the motor
If the motor can not be uncoupled, make sure that the
direction of rotation (FWD/REV) can not cause damage to
the machine.
4.2 INITIAL POWER-UP
After the inverter has been checked, AC power can be applied:
1) Check the power supply
Measure the line voltage and check if it is within the
specified range (rated voltage: - 15% / + 10%).
2) Power-up the AC input
Close the input circuit breaker.
3) Check if the power-up has been succesful
The keypad display will show:
While the red LED (Parameter) is ON, the green LED (value)
remains OFF. Inverter runs some self-diagnosis routines. If no
problems are found, the display shows:
START-UP
This means that the inverter is ready (rdy = ready) to be
operated.
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