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CHAPTER 5 - START-UP
5.3 START-UP DANGER!
Even after theAC power supply has been disconnected, high voltages
may be still present. Wait at least 10 minutes after powering down to
allow full discharge of the capacitors.
The sequence below is valid for the connection 1 (refer to Section
3.2.6). Inverter must be already installed and powered up according
to Chapter 3 and Section 5.2.
5.3.1 Start-up
Operation via
Keypad
(HMI)
Connections according to figure 3.6.
NOTE!
The last frequency reference (speed) value set via the and
keys is saved.
If you wish to change this value before inverter enabling, change
parameter P121 (Keypad Reference).
NOTES:
(1) If the direction of rotation of the motor is not correct, switch off
the inverter. Wait at least for 10 minutes to allow complete
capacitor discharge and then swap any two wires at the motor
output.
(2) If the acceleration current becomes too high, mainly at low
frequencies, set the torque boost (I x R compensation) at P136.
Increase/decrease the content of P136 gradually until you obtain
an operation with constant current over the entire frequency
range. For the case above, refer to Parameter Description in
Chapter 6.
(3) If E01 fault display occurs during deceleration, increase the
deceleration time at P101 / P103.
ACTION HMI DISPLAY DESCRIPTION
Power-up the inverter
Press the key
Press the key and hold it
depressed until 60 Hz is reached
On Plus version, vary the
potentiometer on the HMI
Press key
Inverter is ready to be operated
Motor accelerates from 0 Hz to 3 Hz*
(min. frequency), in theforward (CW)
direction of rotation
(1)
* 90 rpm for 4
pole motor
Motor accelerates up to 60 Hz*
(2)
* 1800 rpm for 4 pole motor
Motor decelerates down to 0 rpm
(3)
.
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