WEG CFW-09 - Pre-Power Checks; Initial Power-Up

93
This chapter provides thefollowing information:
Howto check and prepare the inverter before power-up;
Howto power-up and check for proper operation;
Howto operate the inverter.
Theinverter shallbe installedaccording tochapter3:Installation
andConnection.
DANGER!
Disconnect theAC inputpower before making anyconnections. Even when the
inverter project is different from the suggested connections, the following
recommendations are applicable.
1)
Check all connections
Check if the power, grounding and control connections are correct and
welltightened.
2)
Clean the inside of the inverter
Remove all shipping material from the inside of the inverter or cabinet.
3)
Check if the selected inverter AC power is correct (
r
efer to
item
3.2.
3
)
4)
Check the motor
Check all motor connections and verify if its voltage, current and frequency
match the inverter specifications.
NOTES!
Operation in VT mode
When the motor data isset properlyduringthe first power-up routine,
the inverter automatically sets the additional parameters used for
the correct operation under this control mode.
5)
Uncouple the load from the motor
If the motor cannot be uncoupled, make sure that the direction of rotation
(FWD/REV) cannot cause damage to the machine.
6)
Close the inverter cover or cabinet doors
After the inverter has been checked,AC power can be applied:
1)
Check the supply voltage
Measure the line voltage and check if it is within the specified range (refer to
item 9.1).
2) Power-up the AC input
Close the input circuit breaker or disconnect switch.
3) Check if the power-up has been successful
When the inverter is powered up for the first time or when the factorydefault
parameter values are loaded (P204 = 5), a start-up sub-routine is run. This
sub-routine requests the user to program some basic parameters to ensure
proper operation and motor protection.
A start-up programming example is shownbelow:
CHAPTER
5
START-UP
5.1 PRE-POWER
CHECKS
5.2
INITIAL
POWER-UP
Inverter
Line: CFW-09
Rated Current: 9A
Rated Voltage: 380 V to 480 V
Model:CFW090009T3848ESZ
Cooling: Self-ventilated
Motor
WEG IP55
Power: 5 hp
rpm: 1730, 4 POLE
Rated Current: 7.9A
Rated Voltage: 460 V
Frequency: 60 Hz
Cooling: Self-ventilated