Chapter 6
2. FRENIC5000G11S/P11S Series
6-22
Caution
The information described in this catalog is for the purpose of selecting the appropriate products.
Before actually using this product, be sure to read the instruction manual carefully to ensure proper
operation.
1. PID control functions built in as standard
• Till recently, a temperature controller has been required.
However, because PID control functions are built in, the
room temperature can easily be controlled uniformly by only
installing a sensor (4 to 20mA) for detecting the room
temperature.
2. A Solution to growing demand for energy sav-
ings: Automatic energy saving operation
• Under the energy saving mode, conditions can be set
automatically to ensure that the motor runs at peak effi-
ciency. This approach takes into consideration the axial
force of fans which frequently changes. This results in
minimized power consumption, and satisfies the increasing
demand for the greater energy-savings.
3. Automatic stopping of the inverter cooling fan
while air conditioning system is not in operation
• By selecting cooling fan stop operation, the inverter cooling
fan can be stopped when the temperature of the inverter
cooling fan becomes low while the inverter operation
command is off.
• Although energy savings may appear minimal from the point
of view of the air conditioning unit itself, the total saving
effect that can be realized by the whole air conditioning
system is significant. Furthermore, the cooling fan stop
operation contributes to a more quiet operation, as the
cooling fan operation sound may be a nuisance at night.
4. Unnecessary to resort to any special sound-
proofing measures; Fuji inverter drives a motor
with silent motor sound.
• We have succeeded in eliminating most of the unpleasant
motor sound that usually comes from the motor which is
driven by the inverter. The sound levels are comparable to
those of commercial power sources.
■
Wiring diagram/System configuration
2.10 Using with Fans for Air Conditioning Unit (2)
■
Advantages
Sensor power
supply unit
Current output (*)
(4 to 20mA)
(+)
(-)
Control power supply
Alarm output
(for any fault)
"Inverter running"
signal output
Output for inverter panel
cooling fan operation command
L1/R
L2/S
L3/T
13
12
11
C1
FWD
CM
X1(Hz/PID)
CM
FAB (MCCB)
Room temp. setting device
0 to 1k
Ω
From sensor current
output(*) (4 to 20mA)
Relay for operation
command
Relay for PID control
cancel
P1
P(+)
N(-)
U
V
W
30C
30B
30A
30
Y5C
Y5A
Y1
CME
G
DC REACTOR
(DCR)
Keypad panel
VR
(+)
(-)
Outlet
Outlet
Room temperature sensor
Damper
(fully opened)
Air conditioning
fan
FX
Hz/PID
FRN G11S-
FRN P11S-
RUN
RUN
Chapter6-11(P22˜23).p65
07.8.9, 12:52
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