Suzhou Optimal Machinery OPTFAN User manual

Suzhou Optimal Machinery Co.,Ltd.
Suzhou Optimal Machinery Co.,Ltd.
Tel: [phone] Fax: [phone]
Web:www.optfan.net Email:[email protected]
Address: No. 75,Jiangpu Road,Suzhou Industrial Park,Suzhou City,China
Quick Start Guide
Quick installation guide
In order to safely use the product,please carefully read the operation instruction manual.
HVLS FAN

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.
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.
BEFORE YOU BEGIN
CAUTION
HVLS FAN
Safety&Precautions..............................................1
Product Introduction............................................. 2
1.1 Technical Specification ......................................2
Packing List....................................................3
2.1 Components And Parts.......................... . .............. 4
Product Drawing................................................5
3.1 Standard Part Structure Diagram. ................................ .7
Preparation Before Installation......................................8
4.1 Security Tool Preparation....................................... 8
4.2 Installation Tool Preparation..................................... 8
Installation Condition And Types.................................... .9
5.1 Roof Installation Requirement.................................. . .9
5.2 Brief Introduction Of Different Installation Structure................... . 9
Fan Installation Procedures. . .................................. . . . 11
Control Panel And Display System.............................. . ... 16
Operating Instructions...........................................16
Troubleshooting........................................... . . . . 17
Specification Of Parameters For Control System...................... . 18
10.1 Explanation Of Error Codes................................... 19
Customer Service............................................. . 21
Fan working condition......................................... . . 21
Fault Displays,Causes And Possible Solutions........................... 22
Quality assurance..............................................24
Warranty and Maintenance......................................24
Product Warranty......................................... . . . ..25
4
2
3
1
5
6
7
8
9
10
11
12
13
14
15
16
Contents

-2--1-
Read and understand this manual before installing or operating a fan unit.
Installation, adjustment, repair or maintenance must be performed by qualified
personnel.
Follow all safety practices and instructions during the installation, operation and
servicing of the fan. Failure to apply these safety practices could result in death or
serious
injury. If you do not understand the instructions, please call our Technical
Department for guidance. Technical Department contact information can be found
on last page.
All fan controls and incoming power should be installed only by qualified
technicians.
Failure to follow these guidelines will void the manufacturer’s warranty. All
electrical controls are configured at the factory and are ready to use. No user
adjustments are
available. Follow the included installation instructions when installing this device to
ensure proper operation. Do not make any changes to any part of the fan without
first consulting OPTFANS.
SAFETY & PRECAUTIONS
READ THE ENTIRE MANUAL BEFORE OPERATING THE FAN
NAVIGATOR Series
Diameter
Model
Max Air volume
Input Voltage
Max speed
Max Power
Max Current
Noise Level
8ft（2.4m)
NV-BLDC8
52,800CFM
Single phase220V
120RPM
0.15KW
0.9A
39dBA
1.3A
0.2KW
100RPM
Single phase220V
84,600CFM
NV-BLDC10
10ft（3.0m)
39dBA
1.5A
0.3KW
90RPM
Single phase220V
109,200CFM
NV-BLDC12
12ft（3.6m)
35dBA
1.8A
35dBA
0.4kW
76RPM
Single phase220V
133,900CFM
NV-BLDC14
14ft（4.2m)
The third generation BLDC HVLS(BLDC High Volume-Low Speed) large energy-saving ceiling
fan named by OPTFANS is an application based on permanent-magnet brushless tech, acme
industry design and intelligent control tech. The fans can circulate the airlfow in the space
efficiently, then improve the comfortable feeling greatly. The product combined a series of
advanced technologies, such as aerodynamics, industry design, dynamics, pulse width
modulation(PWM) control technology, mechanics, computer software, simulation technology.
The product is widely used in commercial space, industrial space, stadiums, airports, office
space, auditorium, restaurant and other large & high occasions.
1.1 Technical Specification
1.Product introduction
Note:
1.Weight:the weight doesn't 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 1m from the motor,electromagnetic noise is less
than 40db(A).
4.Packing:Carton packing.
5.Input power:220V/1PH
2017

-4--3-
2.Packing list
Motor case Blade case
Bladesx6
38 Extension tubex1 39
Safety Wire
5
Upper York
2
Motorx1
1
Wire plate
11
Fan cover
14
Hose clamp
18 Separate plugin 19
Seal ring
16
Dust cover
15
Bolts M16x25*4
17
Hualan*4
12
Lock
9
Cable
8
Aluminum
alloy bushing
10
Plastic
expansion tube
25
Connecting
ring m8*4
13
Clamp
3
U-Joint
6U-Joint Base 7
Cable protection
hosex2
4
Manual Book
Control Box x1
34 Manual bookx1 35
I Type Connect
20 Winglets 21 Button plug 22 Wood screw 23
Off the wall code
24 Plastic wall 26
bolts m4*5
28 bolts m4*10 29 bolts m5*16 30 bolts m8*18 31
bolts m10*35
32 bolts m8*25 33
bolts m8*16
36 bolts m10*60 37
Wiring cap
27

-6--5-
3.Product drawing
1
2
3
4
5
H-type steel structure
Clamp plate
Extension tube
Turnbuckle and clamps
BLDC motor
6
7
8
9
10
plug-in
Steel wire
L-type adapting pieces
Fan blade
Fan blade tail
1
2
3
4
5
6
78
10
9

-8--7-
3.1 Standard part structure diagram 4. Preparation before installation
4.1 Security tool preparation
4.2 Installation tool preparation
safety cap
awork gloves bsafety belt cwarning line d
cross screwdriver
l
wire stripper
k
wire cutter
j
17open end wrench
i
18open end wrench
h
24open end wrench
g
speed wrench
f
level-meter
e
diastimeter
tscrew glue ulift truck v
insulated rubber tape
s
socket wrench
multimeter
n24# o19# p16# q10# r
straight screwdriver
m
Steel structure fastening Main body structure
Control system structure
fasteners
H-beam
clamp plate
Upper York
stator shaft
upper dust cover
rotor
bottom cover
control cabinet
switch
speed controller

-10--9-
5. Installation conditions and types
Mounting on I-beam:
1.first confirm the mounting position;
2.then assemble top plate,spacer and
beam clip.
3.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:
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 than 30cm.
First paint off,then spot welding for
brackets. full welding after confirming the
balance of bracket.At last clean welding
slag and paint as before.
5.1 Roof installation requirement
5.2 Brief introduction of different installation structure
extension tube
0.3-5M
drive parts
0.3M
safety diatance
≥0.2M
≥3.5M
Roof
Floor
safety distance
≥0.2M
Hanging on I-beam Side Mount on I-beam
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.
Two steel plates hoop the beam with 4
pcs studs,tighten withdoubled nuts and
washers to guarantee the structure'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 longerthan pipe. Mount top plate
under the pipes and tighten the brackets
to keep steady.
Confirm the size of the concrte beam,
and the position to mount bracket and
guarantee to keep the distance from the
bottom of beam to obstacles no less than
30cm.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.
Hang on Concrete Side Mount on Concrete
Mount on Bent Structure Mount on Pipe/Tube Structure

-12--11-
6.Fan installation procedures
Check all accessories. Prepare safety equipment(safety belt, safety cap etc), life
truck and installation tools.
safety cap work gloves diastimeter lift truck
PS:Detailed installation tools please refer to P10
15
3
4
spring washer
beam clip
steel structure
flat washer
M16x55 fastener
put cable through the extension tube, leave 30cm outside to connect cables from
motor.
Put extension tube between the bending pieces, align to the holes with
M16x130mm 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:
cable
extension tube
leave 30cm outside
PS:put cable in cable pipe then
through extension tube.
flat washer
spring washer
flat washer
M16x130 fastener
level-meter
spring washer
flat washer
flat washer M16x130 fasteners
connecting pieces
for extension tubes
Site survey confirmation
1
Extension rod threading
4
Install extension rod
5
Installation readiness check
2
Installing roof
3
Confirm installation position
Measure the height to mount fan with
diastimeter(t)
Confirm any obstacle or not
(crane,light,cables,fire protection equipment,camera
etc)
Confirm the position on beam to
connect steel guy wire
Confirm the position to mount control
box
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.
PS:Tighten all fasteners
10
16
23
16
PS:there will be a gap
betweenadjust the
extension tube to
vertical,then tighten the fasteners.
PS:there will be a gap
between two tubes
after connected.
Power Up
Frequency Reference
Default Setting
Drive Mode
Forward/Reverse
STOP
: Motor rotates forward.
: Motor rotates in reverse.
Output Frequency Display
This display screen allows the user to monitor and set the frequency reference
while the drive is running.
Note:The user can select items to display when the drive is first powered up by
setting parameter o1-02.
Note: For applications that should not run in reverse (fans, pumps, etc.), set
parameter b1-04 = “1” to prohibit the motor from rotating in reverse. This
sequence also puts the drive in LOCAL mode.
Navigating the Drive and Programming Modes
The drive is set to operate in Drive Mode when it is first powered up. Switch between display
screens using and .

-14--13-
safety steel
guy wire PS:tighten the locks
guy wire lock
The motor shall be in horizontal, and the fasteners shall be tightened after the field
is completed.
Install safety rope
6
Install host
7
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).
Please pre-judge the 4 points 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 most and 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.
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).
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).
yellow-green
Blue
Red
Yellow
PS:contect the wires
with same colors.
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 tape to avoid sparks and improper contact.
Host wiring
8
11
12
cable cable clip
cable clip
Installation of steel wire fastener
9
Layout power linea
10
Install fan blade
11
force bearing point steel guy wire
guy wire lock
PS:aloosening or tightening
turnbuckle to keep motor balanced
11
12
10 13
18
PS:cable should be put through
cable pipe and then to lay.
9
PS:Please lay cable
according to site
surrounding

-16--15-
Remove all things about installation, clean the site and return the scene.
Client’s signature and acceptance.
Clean up the scene
13
Customer signature
14
Installation is complete
15
Fix control box to confirm mounted position,keep box balanced.Punch hole with
electric tools and fix buckles into the holes with cross screwdriver(I).The box should
be fixed at a height between 1.2m-1.3m from the ground.
power output
power input
Distance from the ground
to the bottom of the
cabinet1.2m-1.3m
Installation control system
12
control cabinet
switch
speed controller
7. The control panel and display system
1、After normal power-on, the display panel will self-test reset for a few seconds, and then
display “off”when it is stable.
2、After starting the control box,5 groups of data showed on display window will monitor the
operation status quickly and show the current speed,output current,voltage,phase and
temperature of controller.
Function Diameter
Hertz(Hz)
Kilowatt(kW)
Ampere(A)
Volt(V)
Output voltage
Frequency
Power
Current
Before operating the equipment, please read
the product instruction and clear the obstacles in
the fan revolve area to ensure there is enough
safety space for the fan operation.
Warning: Please make sure to turn off the power
supply first before doing any electrical and fan
maintenance and did by professionals to avoid
being wounded!
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.
RUN：Normal operation of fan
STOP：Fans stop running
RESET
8. Operating instructions
Three Gears Control Switches
switch-on/off
speed controller

-18--17-
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 Suzhou Optimal Machinery Co.,Ltd.at [phone];
Non-professional staffs do not open the electrical control box! For repair or adjustment,
Suzhou Optimal Machinery Co.,Ltd will send you our trained professionals or engineers;
If you find the equipment is damaged or has abnormal sound, please stop running as
soon as possible, cut off power supply, and contact our service department;
Notes: Equipment damages due to the improper use are not covered by the warranty.
Personal injuries and equipment damages for your failure to comply with the contents of
this manual, the Company will not bear any responsibilities.
9. Troubleshooting
RUN
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.
STOP
1. STOP device, turn the control switch from RUN position to STOP;
2. Power outage is prohibited during the fan normal operation.
Heat dissipating
small fan
The wiring shown above is 220V three-phase wiring.
The following is a 220 V single-phase connection.
Output motor wiring
Input power wiring
8.1 Control box wiring
The cable at the output end of the motor is connected with the cable at the input end of the
control box. The connection is fastened with a screwdriver. When connecting, it is necessary to
ensure that the connected core wires are of the same color. Do not mistake or reverse the
connection.
Circuit breaker
Display panel
Red Blue
Yellow
Yellow and Green
(Motor Grounding)
Yellow-green
(input power grounding)
R2-1
S2
U
V
W
PE PE
R2 S2 T2
W
Output
motor wiring Input motor wiring
R2-1
S2
U
V
W
PE PE
R2 S2
W
U
Red
Blue Yellow
Yellow and Green
(Motor Grounding)
Yellow
(input power grounding)
Output motor wiring Input motor
wiring

-20--19-
10. Specification of parameters for control system
Status Display
When the power supply to the drive is turned on, the LED operator lights will appear as follows:
Minor Fault and Alarm Displays
LED Operator Display Name Minor Fault Output
(H2-01 = 10)
bb Drive Baseblock No output
CALL Serial Communication Transmission Error YES
CE MEMOBUS/Modbus Communication Error YES
CrST Cannot Reset YES
EF Run Command Input Error YES
to EF1 to EF5 External Fault (input terminal S1 to S5) YES
oH Heatsink Overheat YES
oL3 Overtorque 1 YES
ov YES
PASS No output
SE
Overvoltage
MEMOBUS/Modbus Test Mode Complete
MEMOBUS/Modbus Test Mode Fault YES
Uv Undervoltage YES
10.1 Explanation of error codes
When a minor fault or alarm occurs, the ALM LED flashes and the text display shows an alarm
code. A fault has occurred if the text remains lit and does not flash. First please turn the switch
to STOP, then to RESET.
No.
Normal
Operation
Name Description
STOP
ALM REV
FOUT
DRV The data display area displays the frequency reference. is lit.
DRV
Fault FOUT
REV
Main circuit low voltage (ex)
Data displayed varies by the type of fault.
for more information and possible solution. and are lit.
DRVALM
DRV
ALM
Drive Mode
STOP
Output Current Display
STOP
Monitors the output current of the drive.
Drive Mode
Output Voltage Reference
STOP
DRV
ALM REV
FOUT
DRV
ALM REV
FOUT
Monitors the output voltage of the drive.
Monitor Display
STOP
DRV
ALM REV
FOUT
Monitor parameters (U parameters) are displayed.
Programming
Mode
Verify Function
STOP
DRV
ALM REV
FOUT
Lists all parameters that have been edited or changed from default settings.
Setup
STOP
DRV
ALM REV
FOUT
A select list of parameters necessary to get the drive operational quickly.
Parameter Setting
STOP
DRV
ALM REV
FOUT
Allows the user to access and edit all parameter settings.
Drive Mode Frequency Reference
STOP
DRV
ALM REV
FOUT
Returns to the frequency reference display screen.
Power Up
Frequency Reference
ESC RUN
LO
RE
STOP
RESET ENTER
DRV
ALM REV
FOUT
Default Setting
Drive Mode
Forward/Reverse
STOP
: Motor rotates forward.
: Motor rotates in reverse.
Drive Mode
Output Frequency Display
STOP
DRV
ALM REV
FOUT
Monitors the frequency output by the drive.
Output Current Display
STOP
DRV
ALM REV
FOUT
Monitors the output current of the drive.
Drive Mode
Output Voltage Reference
STOP
Monitors the output voltage of the drive.
Monitor Display
This display screen allows the user to monitor and set the frequency reference
while the drive is running.
Note:The user can select items to display when the drive is first powered up by
setting parameter o1-02.
Note: For applications that should not run in reverse (fans, pumps, etc.), set
parameter b1-04 = “1” to prohibit the motor from rotating in reverse. This
sequence also puts the drive in LOCAL mode.
DRV
ALM REV
FOUT
Navigating the Drive and Programming Modes
The drive is set to operate in Drive Mode when it is first powered up. Switch between display
screens using and .

-22--21-
Casue of Problem
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
Missing phase on supply side, or too high voltage imbalance.
Check supply voltage.
DC-link voltage exceeds the limit.
DC-link voltage drops below the voltage warning limit.
More than 100% load for too long.
Motor is too hot. The load has exceeded 100% for too long.
Thermistor or thermistor connection is disconnected.
Torque exceeds value set in either parameter 4-16 Torque
Limit Motor Mode or 4-17 Torque Limit Generator Mode.
Inverter peak current limit is exceeded.
Discharge from output phases to ground.
Short circuit in motor or on motor terminals.
No communication to frequency converter.
Brake resistor is short-circuited,thus the brake function is
disconnected.
Brake transistor is short-circuited,thus the brake function is
disconnected.
Brake resistor is not connected/working.
Heat sink cut-out temperature has been reached.
Motor phase U is missing. Check the phase.
Motor phase U is missing. Check the phase.
Motor phase W is missing. Check the phase.
Contact local Danfoss supplier.
Discharge from output phases to ground.
24 V DC is overloaded.
Wrong setting for motor voltage and/or motor current.
Motor current is too low. Check settings.
Frequency converter overload.
Actual motor current has not exceeded the release
brake-current within the start delay-time window
All parameter settings are initialised to default settings.
No communication between LCP and frequency converter.
See parameter group 0-4* LCP.
An error ocurred while copying from frequency converter to
LCP,or from LCP to frequency converter.
Occurs when copying from LCP if the LCP contains erroneous
data-or if no data was uploaded to the LCP.
Occurs when copying from LCP if data are moved between
frequency converters with major differences in software versions.
Occurs when trying to write ro a read-only parameter.
LCP and RS485 connection are trying to update parameters
simultaneously.
Occurs when trying to write an illegal value to a parameter.
Occurs when trying to set a value outside the range.
Parameters can only be changed when the motor is stopped.
Occurs when using a wrong password for changing a
password-protected parameter.
These faults are caused by mains distortions.Install a Danfoss line filter to rectify this problem.
No.
2
4
7
8
9
10
11
12
13
14
16
17
25
27
28
29
30
31
32
38
44
47
51
52
59
63
80
84
85
86
87
88
89
90
91
92
nw
run
Err
1)
No.
Description
Live zero error
Mains phase loss 1)
DC over voltage 1)
DC under voltage 1)
Inverter overloaded
Motor ETR overtemperature
Motor thermistor overtemperature
Torque limit
Overcurrent
Ground fault
Short Circuit
Control word time-out
Brake resistor short-circuited
Brake chopper short-circuited
Brake check
Power board over temp
Motor phase U missing
Motor phase V missing
Motor phase W missing
Ground fault
Ground fault
Control Voltage Fault
AMA check Unon and Inom
AMA low Inom
Current limit
Mechanical Brake Low
Frequency Converter Initialised
The connection between
frequency converter and ICP is lost
Key disabled
Copy fail
LCP data invalid
LCP data not compatible
Parameter read only
Parameter database busy
Parameter value is not valid
in this mode
Parameter value exceeds the
min/max limits
Not While Running
A wrong password was entered
Description
X
X
X
X
X
X
X
X
X
X
X
X
X
Warning
Warning
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Alarm
Alarm
X
X
X
X
X
X
X
X
X
X
X
X
X
Trip
Trip Error
X
X
X
X
X
X
X
X
X
X
X
Error Casue of Problem
11.Customer service
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, Suzhou OPTFANSalways offer customers high quality products and perfect after-sales
service, at present, we had set up sales andafter-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.
1、Login in our website:www.optfan.net,browse to download the latest product technical
specification.
2、Contact our company after-sales department at [phone] to get support.
3、Contact sales engineers
4、our company adhering to the customer first and provide the best service for you.
Combined with fan equipment installation,commission,and operation process,we provide
users with free training about the product basic knowledge, use, maintenance technology
and equipment related qualifications and certificates,to ensure long term stable operation of
equipment.
Support can be got through the following ways:
Product technical support
Environment
Installation site
Conditions
Ambient temperature
Humidity
Surrounding
Below 95%RH
Indoors
-15~+55℃
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

-24--23-
LED Operator Display Fault Name
STo Motor Pull Out or Step Out Detection
Motor pull out or step out has occurred. Motor has exceeded its pull out torque.
Cause Possible Solution
The wrong motor code has been set
(Yaskawa motors only).
• Enter the correct motor code for the PM being used into E5-01.
• For special-purpose motors,enter the correct data to all E5 parameters according to
the Test Report provided for the motor.
Load is too heavy.
• Increase the value set to n8-55(Load Inertia for PM).
• Increase the value set to n8-51 (Pull-In Current during Accel/Decel for PM).
• Reduce the load.
• Increase the motor or drive capacity.
Load inertia is too heavy. Increase n8-55 (Load Inertia for PM).
Acceleration and deceleration times
are too short.
• Increase the acceleration and deceleration times(C1-01 through C1-08).
• Increase the S-curve acceleration and deceleration times (C2-01).
LED Operator Display Fault Name
CPF03 PWM Data Error
There is a problem with the PWM data.
Cause Possible Solution
Drive hardware is damaged. Replace the drive.
LED Operator Display Fault Name
PF
Input Phase Loss
Drive input power has an open phase or has a large imbalance of voltage between
phases. Detected when L8-05 = 1 (enabled).
Cause Possible Solution
There is phase loss in the drive input power. • Check for wiring errors in the main circuit drive input power.
• Correct the wiring.
There is loss wiring in the drive input
power terminals.
• Ensure the terminals are tightened properly.
• Apply the tightening torque specified in this manual to fasten the terminals.Refer To
Wire Gauges and Tightening Torque on page 55 for details.
There is excessive fluctuation in the
drive input power voltage.
• Check the voltage from the drive input power.
• Review the possible solutions for stabilizing the drive input power.
• Disable Input Phase Loss Detection(L8-05=”0”).PF is detected if DC bus ripple is too
high. If it is disabled, there is no fault but the ripple is still too high, thereby the
capacitors are stressed more and lose lifetime.
LED Operator Display Fault Name
oL1 Motor Overload.
The electrothermal sensor tripped overload protection.
Cause Possible Solution
Load is too heavy. Reduce the load.
• Drive overloaded at low speeds.
•
• Reduce the load.
• Increase the speed.
• If the drive is supposed to operate at low speeds, either increase the motor capacity
or use a motor specifically designed to operate with the drive.
Multiple motors are running off the
same drive. Disable the Motor Protection function(L1-01 = “0”) and install a thermal relay to each motor.
LED Operator Display Fault Name
oL2 Drive Overload
The thermal sensor of the drive triggered overload protection.
Cause Possible Solution
Load is too heavy. Reduce the load.
Overload occurred when operating
at low speeds.
• Reduce the load when operating at low speeds.
• Replace the drive with a model that is one frame size larger.
• Lower the carrier frequency (C6-02).
Excessive torque compensation. Reduce the torque compensation gain(C4-01) until there is no speed loss but less current.
Output current fluctuation due to
phase loss.
Check the power supply for phase loss.
Overload may occur at low speeds
when using a general-purpose
motor, even if operating within the
rated current limitation.
Detailed Fault Displays, Causes and Possible Solutions
ov
Overvoltage
Voltage in the DC bus has exceeded the overvoltage detection level.
• For 200 V class: approximately 410 V.
• For 400 V class: approximately 820 V (740 V when E1-01 is less than 400).
Cause Possible Solution
• Increase the deceleration time(C1-02, -04, -06, -08).
• Install a braking resistor or a dynamic braking resistor unit.
•
•
Enable stall prevention during deceleration (L3-04 = “1”).
Stall prevention is enabled as the default setting.
• Check if sudden drive acceleration triggers an overvoltage alarm.
• Increase the acceleration time.
• Use longer S-curve acceleration and deceleration times.
Excessive braking load. The braking torque was too high, causing regenerative energy to charge the DC bus.
Reduce the braking torque, use a braking option, or lengthen decel time.
Drive input power voltage is too high. • Check the voltage.
• Lower drive input power voltage within the limits listed in the specifications.
LED Operator Display Fault Name
oC Overcurrent
Drive sensors have detected an output current greater than the specified overcurrent level.
Cause Possible Solution
• Check the motor cables.
• Remove the short circuit and power the drive back up.
• Check the resistance between the motor cables and the ground terminal .
• Replace damaged cables.
The load is too heavy.
• Measure the current flowing into the motor.
• Replace the drive with a larger capacity unit if the current value exceeds the rated
current of the drive.
• Determine if there is sudden fluctuation in the current level.
•Reduce the load to avoid sudden changes in the current level or switch to a larger drive.
The motor cable is too long Use a larger drive.
LED Operator Display Fault Name
LED Operator Display Fault Name
Uv1
DC Bus Undervoltage
One of the following conditions occurred while the drive was in operation:
• Voltage in the DC bus fell below the undervoltage detection level(L2-05).
• For 200 V class: approximately 190 V (160 V for single phase drives).
•For 400V calss:approximately 380V(350V when E1-01 is less than 400)The fault is output
only if L2-01 = 0 or L2-01 = 1 and the DC bus voltage is under L2-05 for longer than L2-02.
Cause Possible Solution
Input power phase loss. • The main circuit drive input power is wired incorrectly.
• Correct the wiring.
One of the drive input power wiring
terminals is loose.
• Ensure there are no loose terminals.
• Apply the tightening torque specified in this manual to fasten the terminals.Refer to
Wire Gauges and Tightening Torque on page 55 for details.
• Check the voltage.
• Correct the voltage to within range listed in drive input power specifications.
The power has been interrupted. Correct the drive input power.
Check the capacity of the drive input power transformer.
One of the motor cables has shorted
out or there is a grounding problem.
Deceleration time is too short and
regenerative energy flows from the
motor into the drive.
Fast acceleration time causes the
motor to overshoot the speed
reference.
There is a problem with the voltage
from the drive input power.
The drive input power transformer is
not large enough and voltage drops
after switching on power.
13.Fault Displays, Causes and Possible Solutions

14.Quality assurance
15.Warranty and maintenance
16.Product Warranty
-26--25-
Quality assurance is for the whole machine .The quality guarantee period is from the date of
acceptance bycustomers. Failure occurs during the quality guarantee period, such as
products, our company provide freeconsultation, maintenance services (including vulnerability
free replacement of spare parts), quick response,professional troubleshooting.
In order to meet your maintenance needs, Orbit is a full-service partner. Our maintenance
service consists of three powerful components:
This manual focuses on preventive maintenance, which is the key to achieving optimal
performance and long-term operational benefits.
Preventive maintenance can help you avoid unexpected interruptions, provide emergency
on-site service, detect failures and unnecessary energy consumption, thereby reducing overall
costs.
It protects and extends the life of your purchased product.
The damages caused following reasons are not in warranty scope:
Details of the warranty of quality
Our product design is maintenance-free, but in order to ensure the long life of the normal
operation, the fanshould also be maintained regularly, especially when applied in harsh
environments.For any fan or inverter controller maintenance, please be sure that the fan stops
running and cut off the controllerpower to protect the safety of personnel.
If the fan is running with a serious abnormal noise or vibration, it indicates that there exists
some damages to themechanical parts somewhere, and you should immediately shut down
the fan and do a comprehensive inspection.
The abovementioned services are only available in mainland China; the Suzhou 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.
Product warranty period: 24months 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:
Interval maintenance content
Test run
3000 hours
4000 hours
9000 hours
Check the operation of the fan, any abnormal sound or vibration
Clean the dust on the inverter
Clean the dust on the blades
Check the mechanical fasterners to ensure that there's no looseness
Check wire cable to ensure that there's no damage
Check the operation condition of power-driven device
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.
Improper use,maintenance and safekeeping;
Buyer and user themselves dismount or remove the product;
Force majeure factors(lighting,earthquake,typhoon,etc.).
Items
8.Blades
17.Radiator fan
18.Other anomalies
1.Motor balance 13.Operating current7.Blade Strut
3.Safety rope 9.Fan tail
16.Speed control
10.Line
11.Wiring
12.Inverter parameters
2.Smooth operation
15.Switch
4.Fasteners
14.Circuit breaker
5.Wire lock
6.Safety ring
18 Steps safety inspections (whole fan)
Time 9 steps
deep-clean
(Whole fan)
Replacement of
Mechanical Safety
Balanced Cable
System
Replacement of
radiator fans in
control box
Replacement of
Inverter
Maintenance cycle
Service item Non-service item
1st year
2st year
3st year
4st year
5st year
6st year
7st year
8st year
9st year
10st year
18 steps safety
inspections
(whole fan)
Replacement of
safety
fastening system
for fan blades
· Repair maintenance · · Preventive maintenance· · Improved maintenance·

-28--27-
Acceptance report of installation and commissioning
Customer:
Contract No.:
Principal of the customer:
Tel: Fax:
Extension tube length
VFD brand model
Running current（A）
Upper: Below:
Winglets end:
Upper limit HZ
Lower limit HZ
Field structure Blade height from the ground
Blade tip distance from obstacle
Field Height
Mounting point height
Motor Brand
Rated voltage(V)
Field voltage（V）
Product NumberQuantityProducts Info
Installation accordance: A. customer installation drawings
B. Customer project leader site fixed installing position.
Has been received product manual
(inverter/motor manual, Quality certificate, key, user manual).
On-site training fan operation methods, precautions, and
warning instructions
(do not use the power switch to control fan operation)
Power on and commissioning operation
(running time is 15 minutes)
All equipment works normally and smoothly
(no vibration, abnormal sound, electric appliances no alarm )
Fan shape without defects
Yes □
Yes □
Yes □
Yes □
Yes □
A □
No □
No □
No □
No □
No □
B □
1. Main installation and commissioning work for this project:
Installing Site information :
Product Type:
Inspection Items:(Customer selection)
2. Time of installation and commissioning：
to (Month/ Date/Year )
3. Work attitude of the technician：
□ Good □ All right □ Not good enough
4. Quality of service
□ Good □ All right □ Not good enough
5. Final situation of the installation and commissioning：
□ Good □ All right □ Not good enough
6. Detail:
7. Conclusion of acceptance：： □ Qualified □ Unqualified
8. Customer’s comment:
Signature and stamp of customer:
(Month/ Date/Year )
Running upper and lower
limit frequencies（HZ）
STOP
Programming
Mode
Verify Function
STOP
Lists all parameters that have been edited or changed from default settings.
Setup
STOP
A select list of parameters necessary to get the drive operational quickly.
Parameter Setting
STOP
Allows the user to access and edit all parameter settings.
Drive Mode Frequency Reference
STOP
Returns to the frequency reference display screen.