Fuji Electric FRENIC MEGA G2 Series - Motor Drive

8.7 Control Section
8-16
[ 5 ] Motor drive
Terminal [V2]
Torque current command
Slip
frequency
calculation
+
+
Magnetic flux command
Primary frequency
P09/A23/b23/r23
P11/A25/b25/r25
P12/A26/b26/r26
Pulse counter
Speed detection
d15
d16
d17
Encoder pulse resolution
Pulse scaling factor 1
Pulse scaling factor 2
PG pulse
Actual speed
Alarm code 0C1 to 0C3
Cooling f an
ON/OFF control
H06
Cooling fan
ON/OFF
control
Detection of
output currents
(Iu, Iv, Iw)
Cooling fan
Main power
shutdown detection
H72
Motor
PG
Pulse encoder
(Pulse generator)
PG interface card
PG pulse
M
3～
Motor overheat
detection
F37/A13/b13/r13
DC braking
start/stop decision
P23/A37/b37/r37
P16/A30/b30/r30
～
H84
H85
予備励磁判断
"EXITE"
"DCBRK"
Load selection/
Auto torque boost/
Auto energy saving operation
{
Torque c ommand
Actual speed
H173
d90
H71
F21/A10/b10/r10
F22/A11/b11/r11
DC braking (Braking time)
Edc
compensation
2-phase to 3-phase
transformation
PWM
PWM signals
Voltage
RMS value
Vector
Control
3 : Output voltage
Phase angle
calculation
%R1
%X
LED display
88888
LED display
88888
LE D display
88888
Torque current
command
=100 %
<100 %
Edc
(DC link
bus voltage)
M21
M04
P01/A15/b15/r15
P02/A16/b16/r16
P03/A17/b17/r17
P06/A20/b20/r20
P07/A21/b21/r21
P08/A22/b22/r22
P53/A53/b53/r53
P55/A55/b55/r55
P56/A56/b56/r56
Current
RMS value
LE D display
88888
M11
Carrier
frequency
F26
Carrier frequency
reduction
process ing
H98
Canceled when 
（bit 0）
P01/A15/b15/r15
P99/A39/b39/r39
Estimated speed
value calculation
F42/A14/b14/r14
Drive Control Selection
= 5
= 6
Power supply
Rectifying circuit
Gate drive circuit
Main circuit capacitor
PWM signals
Main power
shutdown detection
(Mode selection)
Energy saving
start/stop decision
Magnetic flux for
energy saving
Magnetic flux level during deceleration
Magnetic flux level at light load
Primary frequency
Magnetizing
current command
Torque c urrent command
Motor (No. of poles)
Motor (Slip compensation gain for driving)
(Slip compensation gain for braking)
(Rated slip frequency)
1 : Output frequency 2
(after slip compensation)
Inverter overload level
Internal temperature
Heatsink temperature
Motor sound
(Carrier frequency)
Capacity
Rated current
No-load current
Torque current under vector control
Induced voltage factor under vector control
No. of poles
Motor selection
%X correction factor 1
9 : DC link bus voltage
Detection of
output currents
(Iu, Iv, Iw)
Pre-excitation
start/stop decision
Pre-excitation
(Timer)
Motor
(magnetic relaxation coefficient 1 to c)
Pre-excitation
(Initial level)
DC braking
(Braking level)
Magnetic saturation
compensation
Magnetic flux command
Deceleration
characteristics
Flux level change
start decision at
deceleration
2 : Output current
Fig. 8.7-8 Vector control (motor drive) section block diagram