Fuji Electric FRENIC-HVAC User Manual page 614

Power
Rectifier
supply
Output current
Iu, Iv, Iw
(
Current limit level
Main power
H72
down detection
Main power
down detection
< Output frequency 2
(Mode selection)
(after slip compensation) >
Frequency
limiter
(High)
F15
1
H64≠0.0 H64=0.0
H64 F16
Low limiter Frequency
(Lower limiting limiter
frequency) (Low)
Restart mode after momentary power failure (Mode selection)
Output current
Iu, Iv, Iw
(
DC link bus
capacitor
Edc
Gate drive circuit
(DC link bus
voltage)
PWM signals
Instantaneous overcurrent
H12
limiting (Mode selection)
)
Comparator
Maximum frequency 1
F03
Base frequency 1
F04
F05 Rated voltage at base frequency 1
F06 Maximum output voltage 1
Monitor output Torque boost 1
F09
Load selection/Auto torque boost/Auto energy saving operation 1
F37
Drive control selection 1
F42
H50
H51
(One-way
H52
deflection)
H53
Voltage calculator
Output current fluctuation
damping gain
H80
for motor 1
Motor parameters
to P03
P01
P06 to
P12
P99 Motor 1 selection
DC braking
(Braking response
H95
mode)
F21
(Braking level)
(Braking starting
frequency)
F20
F22
(Braking time)
DCBRK
Starting mode (Auto search)
(Auto search delay time 1)
(Auto search delay time 2)
(Restart time)
(Frequency fall rate)
(Allowable momentary power failure time)
Monitor output
< Output current >
RMS
current
)
Figure 7.3 (2) V/f Control Block
Cooling fan
Output current
Iu, Iv, Iw
(
Cooling fan
ON/OFF
control
0
Alarm 0C1 to 0C3
1
Current limit processing
Non-linear V/f pattern 1
(Frequency)
Monitor output
(Voltage)
< Output voltage >
Non-linear V/f pattern 2
(Frequency)
(Voltage)
2-phase/3-phase
Deceleration
H71
converter
characteristics
+
-
x
Current
Phase angle
fluctuation
calculation
suppressor
Motor sound
(Carrier frequency)
DC braking
Voltage
calculator
Run
decision
STM
Auto search for
H09
idling motor
H49
speed
H46
F14
Restart mode
H13
after momentary
H14
power failure
H16
7-6
M
3～
Motor
Cooling fan
ON/OFF
control
)
H06
Monitor output
< DC link bus voltage >
Edc
(DC link bus
voltage)
Edc
PWM
Compen
processor signals
-sation
F26
Carrier
F27
frequency
(Tone)
Cancel if bit 0=0
Hardware
H98 (bit 0)
current
limiter
Carrier frequency
reduction
processor
PWM