Its other advantages are:
Brake immediately after the stop command. It does
not need to wait the magnetic flux weaken.
Better cooling for motors. The current of the stator
other than the rotor increases during magnetic flux
brake, while the cooling of the stator is more
effective than the rotor.
When the frequency command selection (P00.06,
P00. 07) is 7 or the voltage setting channel selection
(P04.27) is 6, the running mode of the VFD is
procedure PID controlled.
The parameter determines the target given channel
during the PID procures.
0: Keypad (P09.01)
1: AI1
2: AI2
3: AI3
4: HDI
5: Multi-step speed set
6: Modbus communication set
7: PROFIBUS/CANopen communication set
8: Ethernet communication set
9: Reserved
The setting target of procedure PID is a relative one,
100% of the setting equals to 100% of the response
of the controlled system.
The system is calculated according to the relative
value (0–100.0%).
Note:
Multi-step speed reference, it is realized by setting
P10 group parameters. PROFIBUS, Ethernet and
CANopen communication setting need
corresponding extension cards.