KALE FANS Eurus D6BAA49 Operating and maintenance instructions

( )
KaLe Environmental Technology(Shanghai)Corp.
Tel: [phone] Fax: [phone]
Web:www.kalefans.net Email:[email protected]
Address: No. 420 . Chundong Rd . Minghang Dist . Shanghai
KaLe Envir onment al T echnol ogy( Shanghai)C or p.
Quick Installation Mannual
KL-YS-SMSEN-0107

Contents
Preface ..................................................................... 1
2.1 Components and Parts ...........................................................4
Product Drawing ................................................................. 5
3.1 Components Drawing ................................................................. 7
1.1 Product Parameter ...............................................................2
Product Introduction ............................................................... 2
1
2............................................................... 3
Product Packing
4.1 Preparation for Safety Gears ........................................................ 8
4.2 Preparation for Installation Tools .................................................. 8
Installation Condition and Mounting ...................................................... 9
5.1 Installation Condition ................................................................... 9
Troubleshooting ................................................................2 0
4
3
..................................................... 8
Preparation Before Installation
5
..................................................................... 9
5.2 Common Mounting
6.....................................................................1 1
Start Installation
7.......................................................1 8
Controller Panel and Display Description
8................................................................. 1 9
Product Operation
9.............. . . . ...... . ......... . . . . . ..... . . . . . ................ . ...1 9
Safety Caution
.......................................................2 1
10.1 Interpretation for Error Codes
11
10
.............................................................. 2 2
Customer Service
12 ..............................................................2 2
Product Use Condition
13 .............................................................2 3
Quality Guarantee
14 .......................................................2 3
Warranty and Maintenance

INSTALLATION GUIDE
KALE FANS
www.kalefans.net
INSTALLATION GUIDE
EURUS
-2--1-
Thanks and congratulate for your purchasing of the KL-HVLS series big energy-saving fan! Now you have acquired the most
effective shortcuts to pass a cool summer and warm winter. No matter in the industrial or utility applications, it possesses relatively
high cost performance. More importantly, our products have passed the strict quality inspection and a variety of safety tests, and
you can rest assured the operation.
If you have any questions and comments to our products, you can contract us through [phone], or access to our website
www.kalefans.net. Before the usage, please make sure that you have read the operation instruction manual.
EURUS series Big Energy-Saving fan is a super fan with a diameter of 7.3m! Kale Airfoil Blades, which are streamlined, are
developed with the advanced technologies and the principle of aerodynamics. With a power of 1.5KW or less, the blade
is able to drive a mass of air and makes the natural wind system with ultra-large area, which leads to the double function
of ventilation and temperature reduction. Compared to the traditional HVAC conditioner and small high-speed air
blower, the fan is superior in application, and that makes it immaculate for the large space to ventilate and reduce
temperature. EURUSII Series fan is a primary product for KALEFANS and its coverage can be up to 1600 sq metres. The
fans are mainly applied in large space such as the plant, logistics & warehouse, supermarket and farm, etc.
1.1 Product Parameter
Technical Specifications 16ft 4.9m 20ft 6.1m 24ft 7.3m
Model D6BAA49 D6BAA61 D6BAA73
Air disp.@Max speed m³/min m³/min m³/min
Maximum speed 75RPM 65RPM 55RPM
Fan weight 80kg 105kg 120kg
Moto size . 1.5Kw 1.5Kw 1.5Kw
Full load amps 2.4Amps/380V
4.2Amps/220V
3.5Amps/380V
5.7Amps/220V
3.5Amps/380V
5.7Amps/220V
Note:
1, Weight: the weight does'nt contain control box, top
connection parts etc.
2, Size: the above-mentioned product size is standard,
other size can be customized.
3, Noise: sound level measured a distance of 1 m from
the motor, electromagnetic noise is less than 40 db(A).
4, Packing: Export standard crates.
5, Input power: 380 VAC, 3P, 50/60 Hz.220 VAC, 3P,
50/60 Hz.220 VAC, 1P,50/60 Hz.
1. Product Introduction
EURUS series
Preface
11300 12500 14100

INSTALLATION GUIDE
KALE FANS
www.kalefans.net
INSTALLATION GUIDE
EURUS
-4--3-
2.1 Components and Parts
2. ProductPacking
KALEFANS
main box fan blade crate
motor x1set
1
top platex1pcs
2
turnbucklex4pcs
spare turnbucklex1pcs
5
spacerx2pcs
3
I-type fan
blade retainerx5pcs
6
steel wire
lockx28pcs
12
metal joint on
control box x2pcs
17
cables clip
for wallx10pcs
13
M12x60mm
fastenerx10pcs
14
M16x55mm
fastenerx4pcs
15
M16x120mm
fastenerx4pcs
16
beam clipx2pcs
4
M5x12mm fastener x5pcs
7
hub coverx1pcs
8
cable pipex1roll
9
cablex1roll
10
control box x1set
19
cables clip
for beamx8pcs
18 manualx1pcs
20 CDx1pcs 21
fan blade x5pcs
22
extension tube x1pcs
23
steel guy wirex1roll
11
KALEFANS
motor1
top plate
2
spacer
3
beam clip
4
turnbuckle
5
I-type fan
blade retainer
6
M5x12mm
fastener
7
hub cover
8
cable pipe
9
cable
10
steel guy wire
11
steel wire
lock
12
cables clip
for wall
13
M12x60mm
fastener
14
M16x55mm
fastener
15
M16x120mm
fastener
16
metal joint
on control box
17
cables clip
for beam
18
control box
19
manual
20
CD
21
fan blade
22
extension
tube
23
NAME NAME NAME NAME NAME NAMENO. NO. NO. NO. NO. NO.

INSTALLATION GUIDE
KALE FANS
www.kalefans.net
INSTALLATION GUIDE
EURUS
-6--5-
3. Product drawing
motor
1
top plate
2
3
4
5
6
8
11
11
12
14
15
16
16
22
spacer
beam clip
turnbuckle
I-type fan blade retainer
hub cover
steel guy wire(for safety)
steel guy wire
steel wire lock
M12x60mm fastener
M16x55mm fastener
I-beam
M16x120mm fastener
M16x120mm fastener
fan blade
extension tube
23

INSTALLATION GUIDE
KALE FANS
www.kalefans.net
INSTALLATION GUIDE
EURUS
-8--7-
motor cover
eyebolt for guy
safety rings
fan hub
motor frame
M16x55mm fastener
beam clip
spacer
I-beam
top plate
bending parts to
connect extension tube
Mounting on I-beam Motor
cabinet
power input
power output
display window
cabinet lock
switch-on/off
speed switch
Control Box
3.1 Components Drawing 4. Preparation Before Installation
4.1 Preparation for Safety Gears
4.2 Preparation for Installation Tools
safety cap
awork gloves bsafety belt cwarning line d
level-meter
espeed wrench f24# open end wrench g18# open end wrench h
17# open end wrench
iwire stripper k
wire cutter
j
straight screwdriver
m
cross screwdriver
l
multimeter
n24#
socket wrench
o19# socket wrench p
16# socket wrench
q10# socket wrench r
insulated rubber tape
sdiastimeter tscrew glue ulift truck v

INSTALLATION GUIDE
KALE FANS
www.kalefans.net
INSTALLATION GUIDE
EURUS
-10--9-
5. Installation Condition and Mounting
5.1 Installation Condition
5.2 Common Mounting
7.3M(24FT)
motor height=0.8M
0-6M extension tube
Hanging on I-beam
Hanging on Concrete
Mounting on I-beam: first confirm the mounting
position; then assemble top plate,spacer and
beam clip.
Keeping the beam is in the mddile of the top
plate, and top plate is vertical; spacer and beam
clip must
fit together the beam.
Side Mount on I-beam
Side mount on I-beam: confirm the size of the beam, and
the position to weld bracket and guarantee to keep
the distance from the bottom of beam to fan blade no less
and then full welding after confirming the balanceof bracket.
At last clean welding slag and paint as before.
Assemble extended top plate with bending pieces, to fit the
concrete beam. Keep top plate vertical referring to the beam
bottom. Dig holes marked at first with percussion drill, the
depth of the hole refers to the length of expansion bolt. Drive
expasion bolts into the holes and then mount fasteners for
bending pieces
Side Mount on Concrete
Confirm thesize of the concrtebeam, and
theposition to mount bracket and guarantee to keep
thedistance fromthebottom of beam to obstacles no less
Dig holes marked at first with percussion drill, the
depth of the hole refers to the length of expansion bolt. Drive
expasion bolts into the holes and then mount side-mounted
brackets and tighten fasteners.
Two steel plates hoop thebeam with 4pcs studs,
tighten with doubled nuts and washers to guarantee
thestructure’s stability.
Confirm installtion position, it’s better that the position is
close to the pipe connection. Measure the pipe’s diameter,
if its diameter is less than 15cm, keep brackets mounted along
the pipe. Cut stud, and each stud length should be 10cm longer
than [pipe. Mount top plate under the pipes and tighten the
brackets to keep steady.
Mount on Bent Structure Mount on Pipe/Tube Structure

INSTALLATION GUIDE
KALE FANS
www.kalefans.net
INSTALLATION GUIDE
EURUS
-12--11-
6. Start Installation
1Data Confirm for Installation Site
2Check Before Installation
Check all accessories. Prepare safety equipment(safety belt, safety cap etc), life truck and installation tools.
3Install Mounting Brackets
First confirm the mounting position, keeping the beam is in the mddile of the top plate, and top plate is vertical; spacer and
beam clip must fit together the beam. Use 24# open end wrench(g), speed wrench(f) and 24# socket wrench(o) to tighten
M16x55mm fasteners.
Other mounting brackets also required to install firmly.
4Cable Through Extension Tube
put cable through the extension tube, leave 30cm outside to connect cables from motor.
keep no scratch on the cable.
5Install Extension Tube
Put extension tube between the bending pieces, align to the holes with M16X120mm fasteners and pretighten them.
Adjust the tube vertical with level-meter(e), then tighten fasteners with 24# open end wrench(g), speed wrench(f) and
24# socket wrench(o).
For some sites, one more extension tubes will be used, the method to connect two extension tubes as below:
spacer
beam clip
M16x55mm fastener
safety cap
flat washer,
work gloves diastimeter lift truck
Confirm installation position
Measure the height to mount fan with diastimeter(t)
Confirm any obstacle or not
Confirm the position on beam to connect steel guy wire
Confirm the position to mount control box
spring washer
steel structure
M16x120mm fastener
M16x120mm fasteners
flat washer
level-meter
flat washer
spring washer
connecting pieces
for extension tubes
cable
extension tube
leave 30cm outside
to vertical, then tighten the fasteners
tubes after connected.
then through extension tube
flat washer
flat washer
spring washer
4
10
9
23
3
15
16
16

INSTALLATION GUIDE
KALE FANS
www.kalefans.net
INSTALLATION GUIDE
EURUS
-14--13-
M12x60mm fasteners
7Install Motor
Fix 4 pc s turnbuckles o n the motor, and c onnect motor with ext ension tu b e, adjust the bottom of
motor to balance with l evel-meter(e), th e n tightenfasteners w i th 24#open en d w rench(g), speed
wrench(f) and 24#socket wrench(o.
M16x120mm fastener
flat washer
flat washer
spring washer
turnbuckle
PS: keep the motor balance
and tighten the fasteners
level-meter
6Install Safety Ring
Put wire through a small hole on extension tube, and then twist the whole beam, adjust the safety wire and tighten the guy
wire locks with speed wrench(f) and 10# socket wrench(r).
safety steel guy wire guy wire lock
9Install Safety Steel Guy Wire
Pleasepre-judgethe4points can bear the force or not, put the wire through the hole punched beforehand on the purlin.
Connect turnbuckle with eyebolt on motor with guy wire, then loosen the turnbuckle at the mostand put guy wire through
lock and connect turnbuckle. Four safety wires must be isometric, symmetrical and even load. At last tighten all wire locks
with speed wrench(f) and 10# socket wrench(r), and paint with screw glue on locks and turnbuckle.
force bearing point
to keep motor balanced.
8Wiring on Motor
Strip the cable with wire stripper(k) and keep copper wire unbroken. Connect four lines with the same color, and fix the
connector with cross screwdriver(l), then packed with insulated rubber tapeto avoid sparks and improper contact.
yellow-green
bluered
yellow
10 Wiring for Control Box
Cable routing should be neat and good-looking, every 1.5M with a cable clip while laying cable, and then tighten cable clips
on beam and wall with straight screwdriver(m).
Please lay cable according to site surrounding
cable cable clip
cable clip
11 Install Fan Blade
Install the fanblades ontheopposite as firstto keep the whole balanced, be tender for thefanbladeand keep
unbroken while installing and tighten fasteners with 18# open end wrench(h), speed wrench(f) and 19# socket wrench(p).
After installation, removeoff theprotective cover onthefanblades.
flat washer
spring washer
cable pipe and then to lay
9
11
steel guy wire
11
10 13
18
12
guy wire lock
12
16
5
14

INSTALLATION GUIDE
KALE FANS
www.kalefans.net
INSTALLATION GUIDE
EURUS
-16--15-
12 Install I-type fan blade retainer
Unbolt the pre-tightened fasteners on fan blade next to hub, connectfan blade retainer one by one with
17#open end wrench(i), speed wrench(f) and 16#socket wrench.
Please note that slotted hole is underneath and round hole is on top.
spring washer
round hole is on top.
slotted hole is underneath
flat washer
pre-tightened fasteners
pre-tightened fasteners
13 Install Hub Cover
Tighten 5 pcs M5X12mm fasteners to fix hub cover on the hub with straight screwdriver(m).
M5X12mm fasteners
power output
power input
1.2m-1.3m from the ground to the bottom of the cabinet
14 Install Control Box
Fix control box to confirm mounted position, keep the box balanced. Punch holes with electric tools and fix buckles into
the holes with cross screwdriver(l). The box should fixed ata height between 1.2m-1.3m from the ground.
power output
small cooling fan
power input input lines
output lines
display panel
breaker
15 Wiring for control box
Cable from motor connect power output end oncontroller and power supply connect the input end, and tighten them
with straightscrewdriver(m). Must confirm to connect wires with thesame color, output and input ends must not be
connected wrongly, and note the data on the screen.
Option 1: wiring method for power of 380V-480V, 3 phases at site
R2-1
S2
U
V
W
PE PE
R2 S2 T2
counter-clockwise direction is forward
16 Test Run
Test run for 15 mins to check whether there is any abnormal sound/noise, any shake of safety guy wire, or the current is
in rated range. Also confirm thefanrunning safely with safety distance fromobstacles.
yellow-green(ground lead for input)
yellow-green(ground lead for motor)
blue
red
yellow
yellow-green(ground lead for input)
yellow-green(ground lead for motor)
R1 S1 T1
input lines
output lines
R2-1
S2
U
V
W
PE PE
R2 S2
blue
red
yellow
R1 S1
cabinet
buckle
display window
lock
switch-on/off
speed controller
7
hub cover
8
Option 2: wiring method for power of 220V-240V, Single phase at site
clockwise direction is reverse

INSTALLATION GUIDE
KALE FANS
www.kalefans.net
INSTALLATION GUIDE
EURUS
-18--17-
19 Installation Completion
7. Control panel and display
exchange connection of two lines of all three lines.
If the fan reverse runs with small air volume, please power off correctly, and exchange connection of two lines of U(red),
V(yellow) and W(blue) to keep forward running.
17 Clean the Site
Remove all things about installation, clean the site and return the scene
18 Customer Signature
Client’s signature and acceptance.
R1 S1 T1
power input
power output
R2-1
S2
U
V
W
PE PE
R2 S2 T2

-20--19-
In the installation, adjustment and the cleaning processes please don’t bend the fan blades, or it will damage the equipment
or affect using effects.
Please make sure the fan's input voltage and supply voltage are the same before cut-in the power.
Please don’t proceed examine and repair works while power on so as to prevent electric shock.
Please don’t secretly alter the structure and installation site of the fan.
Please don’t open the electrical control box while power on so as to prevent electric shock.
Please don’t operate the damaged devices, or it will bring serious consequences of personal injury.
Strictly prohibit the structural changes or parameter changes of the electrical control box, or it will cause equipment damage or
personal injury and death accident duo to the improper set.
In the electrical control box there includes high-voltage storage capacitor. When you operate the fan control device, please
wait for 3 minutes to let the voltage release out (notes: the displayer blackness is not the mark that the voltage has reached the
safety level) to prevent electric shock.
Strictly prohibit the operation when the safety space of the fun is insufficient.
Strictly prohibit the operation during the reverse back process of the fun’s operating space, and make sure whether there are
obstacles before starting.
Beforeoperating the e q uipment, pleaser ead t h e
product instruct i o n a nd clear theobst a cles in the
fanr evol v e area to ens u r e the r e i s eno u gh safety
space for thefanoperatio n .
Warning: Please m a ke s u r e t o tur n off thepowe r
s u pply f irst beforedoing any electrica l a nd fan
m a intenance a nd did byprofessionals to avoi d
being w o und e d !
Three Gears Control Switches
Three gears control switches are the electrical devices that control OFF, RUN and
Reset, and they are weak current control switches. They directly control the
frequency converter.
ST
Reset
1. confirm there is no obstruction and potential danger in the fan operation space ;
2. confirm the input power supply is correct and meet the product's requirement;
3. confirm the speed knob at the minimum position;
4. turn on the fan, turn the control switch from STOP position to RUN position;
5. after the fan starts, adjust speed knob to get the appropriate speed and best effect.
1. STOP device, turn the control switch from
RUN position to STOP;
2. Power outage is prohibited during the fan
normal operation.
switch-on/off speed control
8. Operation
9. Safety instructions
Caution
The installation and layout of the circuit wiring must be performed by our professional qualified staff.
Please use the specified device component appointed by our company.
While the fan is running, please don’t cut off the power, otherwise it will cause damage to the fan. It should cut
off the power when the fan is drop-dead halt.
When the fan is in the corotation (inversion) state, please don’t switch the button to the opposite direction
directly or it will cause the mechanical failure.
Common causes for the malfunctioning operation:
The external power supply of the control box is not valid;
Open the master switch, and then turn on the three gears control switch, if the fan can still not work, please check
whether the speed knob is of the MIN state. Otherwise, please contract KaLe Environmental Technology(Shanghai)
Corp. at [phone].
Non-professional staffs do not open the electrical control box! For repair or adjustment, KaLe Environmental
Technology(Shanghai)Corp. will send you our trained professionals or engineers.
If you find the equipment is damaged or has abnormal sound, pleasestop running as soonas possible, cut off
power supply, and contact our service department.
Notes: Equipment damages due to the improper use are not covered bythe warranty. Personal injuries and
equipment damages for your failure to comply with the contents of this manual, the Company will not bear any
responsibilities
10.
Troubleshooting
Normal boot sequence of operations Normal shutdown sequence of operations:
INSTALLATION GUIDE
KALE FANS
www.kalefans.net
INSTALLATION GUIDE
EURUS

INSTALLATION GUIDE
KALE FANS
www.kalefans.net
INSTALLATION GUIDE
EURUS
-22--21-
12. Fan working condition
In order to take full advantage of the product's performance and extend its life, the installation environment if of
very important. Please install the fan in the environment as requested in the following table:
After-sales service is very important for the stability of the equipment operation, because of this, KaLe Environmental
always offer customers high quality products and perfect after-sales service, at present, we had set up sales and
after-sales service centers in five major areas across the country to ensure that we can provide users with thoughtful,
fast, high quality and comprehensive after-sales service, make users feel relieved, without worry.
about the product basic knowledge, use, maintenance technology and equipment related qualifications and certificates,
to ensure long term stable operation of equipment.
Indoors
To improve the reliability, please don’t use the product in
the places where temperature changes rapidly.
Avoid freezing the product.
Places with no corrosive gas and flammable gas
Places that metal powder, oil, water and other foreign matter
will not enter the controller
Places of less salt corrosion
Product technical support
Support can be got through the following ways:
Environment
Surrounding
Installation site
Ambient temperature
H u m i d i t y
R e q u i r e m e n t s
11. tomer service
Warnings and Alarms
No. Description Warning Alarm Trip Error Casue of Problem
2Live zero error X X
Singal on terminal 53 or 60 is less than 50% of the value set in:
6-10 Terminal 53;Low Voltage; 6-12 Terminal 53 Low Current;
6-22 Terminal 54 Low Current
4Mains phase loss 1) X X X Missing phase on supply side, or too high voltage imbalance.
Check supply voltage.
7DC over voltage 1) X X DC-link voltage exceeds the limit.
8DC under voltage 1) X X DC-link voltage drops below the voltage warning limit.
9Inverter overloaded X X More than 100% load for too long.
10 Motor ETR overtemperature X X Motor is too hot. The load has exceeded 100% for too long.
11 Motor thermistor overtemperature X X Thermistor or thermistor connection is disconnected.
12 Torque limit X Torque exceeds value set in either parameter 4-16 Torque Limit
Motor Mode or 4-17 Torque Limit Generator Mode.
13 Overcurrent X X X Inverter peak current limit is exceeded.
14 Ground fault X X X Discharge from output phases to ground.
16 Short Circuit X X Short circuit in motor or on motor terminals.
17 Control word time-out X X No communication to frequency converter.
25 Brake resistor short-circuited X X Brake resistor is short-circuited,
thus the brake function is disconnected.
27 Brake chopper short-circuited X X Brake transistor is short-circuited,
thus the brake function is disconnected.
28 Brake check XBrake resistor is not connected/working.
29 Power board over temp
X
X X Heat sink cut-out temperature has been reached.
30 Motor phase U missing X X Motor phase U is missing. Check the phase.
32 Motor phase W missing
X X Motor phase W is missing. Check the phase.
38 Internal fault X X Contact local Danfoss supplier.
44 Ground fault X X Discharge from output phases to ground.
47 Control Voltage Fault X X 24 V DC is overloaded.
51 AMA check Unom
and Inom X Wrong setting for motor voltage and/or motor current.
52 AMA low X Motor current is too low. Check settings.
59 Current limit X
Frequency converter overload.
63 Mechanical Brake Low X
Actual motor current has not exceeded the release
brake-current within the start delay-time window
80 Frequency Converter Initialised
to Default Value X All parameter settings are initialised to default settings.
84 The connection between frequency
converter and LCP is lost
X No communication between LCP and frequency converter.
85 Key disabled XSee parameter group 0-4* LCP.
86 Copy fail X An error ocurred while copying from frequency converter to LCP,
or from LCP to frequency converter.
87 LCP data invalid XOccurs when copying from LCP if the LCP contains erroneous
data-or if no data was uploaded to the LCP.
88 LCP data not compatible XOccurs when copying from LCP if data are moved between frequency
converters with major differences in software versions.
89 Parameter read only X Occurs when trying to write ro a read-only parameter.
90 Parameter database busy X LCP and RS485 connection are trying to update parameters
simultaneously.
91 Parameter value is not valid
in this mode
XOccurs when trying to write an illegal value to a parameter.
92 Parameter value exceeds the
min/max limits
XOccurs when trying to set a value outside the range.
nw
run Not While Running XParameters can only be changed when the motor is stopped.
Err A wrong password was entered X
Occurs when using a wrong password for changing a
password-protected parameter.
1) These faults are caused by mains distortions.Install a Danfoss line filter to rectify this problem.
31 Motor phase V missing
X X Motor phase V is missing. Check the phase.
Lock
Inom
[phone]

INSTALLATION GUIDE
KALE FANS
www.kalefans.net
INSTALLATION GUIDE
EURUS
-24--23-
The abovementioned services are only available in mainland China; the Shanghai Company will not accept fault
diagnosis in foreign countries such. If customers wish to provide after-sales service abroad, it must be conclude and
sign a Foreign Service contract.
Our products are manufactured under strict quality control, and each set of the products have passed the rigorous
testing process before delivery.
When the product is used in the occasions that may cause major accident or loss due to the improper operation,
please configure the relevant security measures.
Failures caused by incorrect use.
Failures caused by your transform of our products without our permission.
Failures caused by natural disasters and fires.
Over the warranty period
Other failures caused by non-corporate responsibilities.
Product warranty period: 36 months for complete machine after delivery.
For failures within the warranty period, please do not try to solve by your own, the company can send you a free
onsite service professional. But the following occasions are the paid services:
Quality assurance is for the whole machine .The quality guarantee period is from the dateof acceptance by
customers. Failure occurs during thequality guarantee period, such as products, our company provide free
consultation, maintenance services (including vulnerability free replacement of spareparts), quick response,
professional troubleshooting.
The damages caused following reasons are not in warranty scope:
Details of the warranty of quality
Product Warranty
13. Quality Assurance
14. Warranty and Maintenance
The damages caused following reasons are not in warranty scope:
Our product design is maintenance-free, but in order to ensure the long life of the normal operation, the fan
should also be maintained regularly, especially when applied in harsh environments.
For any fanor inverter controller maintenance, pleasebesure thatthefanstops running and cut off the controller
power to protect thesafety of personnel.
Interval maintenance content
Test run Check the operation of the fan, any abnormal sound or vibration
2500h Clean the dust on the inverter
Clean the dust on the blades
4000h Check the mechanical fasterners to ensure that there's no looseness
Check wire cable to ensure that there's no damage
8000h Check the operation condition of power-driven device
Check the oil level of motor gearbox
If the fan is running with a serious abnormal noise or vibration, it indicates that there exists some damages to the
mechanical parts somewhere, and you should immediately shut down the fan and do a comprehensive inspection.