Lenze i510 Series Commissioning

11.12 Flying restart circuit
The ying restart funcon makes it possible to restart a coasng motor on the y during oper-
aon without speed feedback. Synchronicity between the inverter and the motor is coordina-
ted so that the transion to the rotang drive is eected without jerk at the me of connec-
on.
The following descripon and the listed parameters are valid for the ying
restart circuit of an asynchronous motor.
For informaon on a ying restart circuit in case of a sensorless control of a syn-
chronous motor, see chapter "Sensorless control for synchronous motors (SL-
PSM)". ^ 125
Precondions
•
Drive systems with speed feedback do not need a ying restart circuit because there is
always a jerk-free synchronisaon to the feedback speed.
•
The ying restart circuit operates safely and reliably in case of drives with high centrifugal
masses. If several motors with dierent centrifugal masses are connected to the inverter,
the ying restart circuit must not be used.
•
The ying restart circuit serves to idenfy rotang eld frequencies of up to maximally
±200 Hz.
Required sengs before the ying restart circuit is used:
1.
The motor data must be set correctly. 4Motor data ^ 114
2.
The sengs for the current controller and the ying restart controller must be adapted to
the motor. The sengs are made automacally if one of the following opmisaons is car-
ried out:
4Motor
selecon from motor catalogue ^ 144
4Automac motor idencaon (energized) ^ 146
4Automac motor calibraon (non-energized) ^ 147
Details
The inverter determines synchronicity by idenfying the synchronous rotang eld frequency.
The "search" starts in posive direcon.
Duraon:
•
The ying restart process is determined within approx. 0.5 ... 1.5 seconds.
•
The duraon is inuenced by the start frequency 0x2BA1:001 (P718.01).
Seng the funcon:
1.
As starng performance, set the selecon "Flying restart circuit [2]" in 0x2838:001
(P203.01).
•
Thus, every inverter enable causes a synchronisaon to the rotang or standing drive.
•
Aer the inverter has been enabled, the motor can temporarily start or reverse if
drives with low fricon and low mass inera are used.
•
If the inverter is operated with the default sengs, no further sengs are required for
most applicaons.
2.
If required, adapt the current 0x2BA1:001 (P718.01) and the start frequency 0x2BA1:002
(P718.02) for the ying restart circuit.
•
Seng notes can be found in the "Info" column for the respecve parameter.
For diagnosc purposes, the frequency detected when the motor has been restarted on the
y is displayed in 0x2BA1:008 (P718.08).
Addional funcons
Flying restart circuit
309

Lenze i510 Series Specifications

General

Protection Class	IP20
Overload Capacity	150% for 60 seconds
Enclosure Rating	IP20
Dimensions	Varies by model
Weight	Varies by model
Control Type	V/f control, vector control
Communication Interfaces	CANopen, Modbus RTU, EtherCAT, PROFIBUS, PROFINET
Ambient Temperature	-10°C to +50°C
Braking Resistor	Optional
Safety	STO (Safe Torque Off)
Protection Features	Overcurrent, overvoltage, undervoltage, overtemperature, short circuit
Output Voltage	0 to input voltage
Input Voltage	200-240 V, 380-480 V
Voltage Range	200-240 V, 380-480 V
Frequency Range	0 to 599 Hz