Ebmpapst K3G800-AQ03-01 User manual

Operating instructions
K3G800-AQ03-01
Translation of the original operating instructions
ebm-papst Mulfingen GmbH & Co. KG
Bachmühle 2
D-74673 Mulfingen
Phone [phone]
Fax [phone]
[email protected]
www.ebmpapst.com
CONTENTS
1. SAFETY REGULATIONS AND NOTES
11. SAFETY REGULATIONS AND NOTES
Please read these operating instructions carefully before starting to work
with the device. Observe the following warnings to prevent malfunctions
or physical damage to both property and people.
These operating instructions are to be regarded as part of this device.
If the device is sold or transferred, the operating instructions must
accompany it.
These operating instructions may be duplicated and forwarded for
information about potential dangers and their prevention.
1.1 Levels of hazard warnings
11.1 Levels of hazard warnings These operating instructions use the following hazard levels to indicate
potentially hazardous situations and important safety regulations:
DANGER
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury. Compliance with
the measures is mandatory.
WARNING
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury. Exercise extreme
caution while working.
CAUTION
Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury or damage of property.
NOTE
A potentially harmful situation can occur and, if not avoided, can
lead to property damage.
1.2 Staff qualification
11.2 Staff qualification
The device may only be transported, unpacked, installed, operated,
maintained and otherwise used by qualified, trained and authorised
technical staff.
Only authorised specialists are permitted to install the device, to carry
out a test run and to perform work on the electrical installation.
1.3 Basic safety rules
11.3 Basic safety rules
Any safety hazards stemming from the device must be re-evaluated
once it is installed in the end device.
Observe the following when working on the unit:
;Do not make any modifications, additions or conversions to the
device without the approval of ebm-papst.
1.4 Electrical voltage
11.4 Electrical voltage
;Check the electrical equipment of the device at regular intervals, refer
to chapter 6.2 Safety test.
;Replace loose connections and defective cables immediately.
DANGER
Electrical load on the device
Risk of electric shock
→ Stand on a rubber mat if you are working on an electrically
charged device.
WARNING
Terminals and connections have voltage even with a
unit that is shut off
Electric shock
→ Wait five minutes after disconnecting the voltage at all poles
before opening the device.
21.5 Safety and protective functions
21.6 Electromagnetic radiation
21.7 Mechanical movement
21.8 Emission
21.9 Hot surface
21.10 Transport
21.11 Storage
31.12 Disposal
32. PROPER USE
43. TECHNICAL DATA
43.1 Product drawing
53.2 Nominal data
53.3 Data according to ErP directive
53.4 Technical features
53.5 Mounting data
53.6 Transport and storage conditions
64. CONNECTION AND START-UP
64.1 Connecting the mechanical system
64.2 Connecting the electrical system
74.3 Connection in terminal box
84.4 Factory settings
94.5 Connection screen
104.6 Checking the connections
104.7 Switch on device
104.8 Switching off the device
105. INTEGRATED PROTECTIVE FUNCTIONS
116. MAINTENANCE, MALFUNCTIONS, POSSIBLE
CAUSES AND REMEDIES
126.1 Cleaning
126.2 Safety test
Item no. 51234-5-9970 · ENG · Revision 82539 · Release 2014-05-08 · Page 1 / 12
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone [phone] · Fax [phone] · [email protected] · www.ebmpapst.com

Operating instructions
K3G800-AQ03-01
Translation of the original operating instructions
CAUTION
In the event of failure, there is electric voltage at the
rotor and impeller
The rotor and impeller are base insulated.
→ Do not touch the rotor and impeller once they are installed.
CAUTION
If control voltage is applied or a speed setpoint is stored,
the motor automatically restarts, e.g. after a power failure.
Danger of injury
→ Keep out of the danger zone of the device.
→ When working on the device, switch off the mains
supply voltage and secure the latter from being switched on
again.
→ Wait until the device stops.
→ After working on the device, remove any used tools or
other objects from the device.
1.5 Safety and protective functions
DANGER
Missing safety device and non-functioning safety device
If there is no safety device, you could be seriously injured, for
example if you reach into the running device or your hands are
sucked into it.
→ Operate the device only with a fixed and isolating safety
protection and a fixed guard grille.
The guard must withstand the kinetic energy of a fan blade
detaching at maximum speed.
→ The device is a built-in component. You, the owner/
operator, are responsible for providing adequate protection for
the device.
→ Shut down the device immediately if you detect a
missing or ineffective protective feature.
1.6 Electromagnetic radiation
NOTE
Electrical or electromagnetic interferences after
integrating the device in installations on the customer's
side.
→ Verify that the entire setup is EMC compliant.
1.7 Mechanical movement
DANGER
Rotating device
Body parts that come into contact with the rotor and impeller
can be injured.
→ Secure the device against accidental contact.
→ Before working on the system/machine, wait until all
parts have come to a standstill.
DANGER
Flying parts
Missing safety devices may cause balancing weights or
broken fan blades to be ejected at high speeds, causing bodily
harm.
→ Take appropriate safety measures.
WARNING
Rotating device
Long hair, loose items of clothing and jewellery could become
entangled and pulled into the device. You could be injured.
→ Do not wear any loose clothing or jewellery while working
on rotating parts.
→ Protect long hair by wearing a cap.
1.8 Emission
WARNING
Depending on the installation and operating conditions,
a sound pressure level greater than 70 dB(A) may arise.
Danger of noise-induced hearing loss
→ Take appropriate technical safety measures.
→ Protect operating personnel with appropriate safety
equipment, e.g. hearing protection.
→ Also observe the requirements of local agencies.
1.9 Hot surface
CAUTION
High temperature at the electronics enclosure
Danger of burn injuries
→ Ensure that sufficient protection against accidental contact is
provided.
1.10 Transport
WARNING
Transport of fan
Injuries from slipping or falling.
→ Only transport the fan in its original packaging.
→ The fans must always be transported and handled such
that they cannot tip.
→ Transport the fan "upright", in other words with the axis
horizontal.
→ Secure the fan(s) with a lashing strap, for example, so
that nothing slips or tips; this is especially important if
stacking multiple fans.
→ Also take into consideration potential wind forces.
1.11 Storage
WARNING
Storing the fan
Injuries from slipping or falling.
→ The fans must always be stored and handled such that they
cannot tip.
→ Secure the fan(s) with a lashing strap, for example, so
that nothing slips or tips; this is especially important if
stacking multiple fans.
→ Also take into consideration potential wind forces.
;Store the device, partially or fully assembled, in a dry and
weatherproof manner in the original packing in a clean environment.
;Protect the device from environmental impacts and dirt until the final
installation.
;We recommend storing the device for a maximum up to one year to
guarantee proper operation and longest possible service life.
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Operating instructions
K3G800-AQ03-01
Translation of the original operating instructions
;Even devices explicitly suited for outdoor use are to be stored as
described prior to being commissioned.
;Maintain the storage temperature, see
chapter 3.6 Transport and storage conditions.
;Please make sure that all screwed cable glands are fitted with
dummy plugs.
1.12 Disposal
When disposing of the device, please comply with all relevant
requirements and regulations applicable in your country.
2. PROPER USE
The device is exclusively designed as a built-in device for conveying
air according to its technical data.
Any other usage above and beyond this does not conform with the
intended purpose and constitutes misuse of the device.
Customer equipment must be capable of withstanding the mechanical
and thermal stresses that can arise from this product. This applies for the
entire service life of the equipment in which this product is installed.
Proper use also includes:
●Use the device in power systems with earthed neutral (TN/TT power
systems) only.
●Only using the device in stationary systems.
●Carrying out all maintenance.
●Moving air with a density of 1.2 kg/m³.
●Using the device in accordance with the permitted ambient
temperature, see chapter 3.6 Transport and storage conditions and
chapter 3.2 Nominal data.
●Operating the device with all protective features in place.
●Minding the operating instructions.
Improper use
Using the device in the following ways is particularly prohibited and
may cause hazards:
●Operating the device with an imbalance, e.g. caused by dirt deposits
or icing.
●Operation in medical equipment with a life-sustaining or lifesaving
function.
●Operation with external vibrations.
●Moving solids content in flow medium.
●Painting the device
●Connections (e.g. screws) coming loose during operation.
●Opening the terminal box during operation.
●Standing or walking on the device
●Moving air that contains abrasive particles.
●Moving highly corrosive air, e.g. salt spray mist. Exceptions are
devices that are intended for salt spray mist and protected accordingly.
●Moving air that contains dust pollution, e.g. suctioning off saw dust.
●Operating the device close to flammable materials or components.
●Operating the device in an explosive atmosphere.
●Using the device as a safety component or for taking on safety-
related functions.
●Operation with completely or partially disassembled or modified
protective features.
●In addition, all application options that are not listed under proper use.
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Operating instructions
K3G800-AQ03-01
Translation of the original operating instructions
3. TECHNICAL DATA
3.1 Product drawing
All measures have the unit mm.
1Inlet nozzle with bleeder connection for pressure relief (k-factor: 545)
2Screw-on position for vibration-absorbing elements
3Cable diameter: min. 4 mm, max. 10 mm, tightening torque: 4±0.6 Nm
4Cable diameter min. 9 mm, max. 16 mm, tightening torque 6±0.9 Nm
5Tightening torque 3.5±0.5 Nm
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Operating instructions
K3G800-AQ03-01
Translation of the original operating instructions
3.2 Nominal data
Motor M3G200-QA
Phase 3~
Nominal voltage / VAC 400
Nominal voltage
range / VAC
380 .. 480
Frequency / Hz 50/60
Type of data definition ml
State prelim.
Speed / min-1 960
Power input / W 5800
Current draw / A 9.4
Min. ambient temperature
/ °C
-25
Max. ambient
temperature
/ °C
40
ml = Max. load · me = Max. efficiency · fa = Running at free air
cs = Customer specs · cu = Customer unit
Subject to alterations
3.3 Data according to ErP directive
Installation category A
Efficiency category Static
Variable speed drive Yes
Specific ratio*1.01
*Specific ratio = 1 + pfs / 100 000 Pa
Actual Request
2013
Request
2015
Overall efficiency ηes / % 67.7 55.5 59.5
Efficiency grade N 70.2 58 62
Power input Ped / kW 5.8
Air flow qv/ m³/h 21405
Pressure increase total psf / Pa 636
Speed n / min-1 955
Data definition with optimum efficiency.
The ErP data is determined using a motor-impeller combination in a standardised
measurement configuration.
3.4 Technical features
Mass 158 kg
Size 800 mm
Surface of rotor Coated in black
Material of electronics
housing
Die-cast aluminium
Material of impeller Aluminium sheet
Material of inlet nozzle Sheet steel, galvanised
Material of support
structure
Sheet steel, galvanised
Number of blades 7
Direction of rotation Clockwise, seen on rotor
Type of protection IP 54
Insulation class "F"
Humidity class F4-1
Mounting position Shaft horizontal
Condensate discharge
holes
Rotor-side
Operation mode S1
Motor bearing Ball bearing
Technical features - Output 10 VDC, max. 10 mA
- Output 20 VDC, max. 50 mA
- Output for slave 0-10 V
- Input for sensor 0-10 V or 4-20 mA
- External 24 V input (programming)
- Alarm relay
- Integrated PID controller
- Motor current limit
- PFC, passive
- RS485 MODBUS RTU
- Soft start
- Control input 0-10 VDC / PWM
- Control interface with SELV potential
safely disconnected from the mains
- Over-temperature protected
electronics / motor
- Line undervoltage / phase failure
detection
Touch current acc.
IEC 60990 (measuring
network Fig. 4, TN
system)
<= 3.5 mA
Electrical leads Via terminal box
Motor protection Reverse polarity and locked-rotor
protection
Protection class I (if protective earth is connected by
customer)
Product conforming
to standard
EN 61800-5-1; CE
Approval C22.2 Nr.77 + CAN/CSA-E60730-1;
EAC; UL 1004-7 + 60730
For cyclic speed loads, note that the rotating parts of the device
are designed for maximum one million load cycles. If you have
specific questions, contact ebm-papst for support.
3.5 Mounting data
;Secure the mounting screws against accidentally coming loose (e.g.
by using self-locking screws).
Strength class for
mounting screws
10.9
You can obtain additional mounting data from the product drawing if
necessary.
3.6 Transport and storage conditions
;Use the device in accordance with its protection type.
Max. permissible
ambient motor temp.
(transp./ storage)
+80 °C
Min. permissible
ambient motor temp.
(transp./storage)
-40 °C
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Operating instructions
K3G800-AQ03-01
Translation of the original operating instructions
4. CONNECTION AND START-UP
4.1 Connecting the mechanical system
DANGER
Heavy and unwieldy device.
Crushing hazard
→ Do not hold or transport the device by the impeller.
Use cloth cable loops, for example, to move the device
using a crane. Holes are installed on the support structure
that can be used for transport.
→ After installation, ensure that the blades of the impeller are
not deformed or bent.
CAUTION
Cutting and crushing hazard when removing the fan
from the packaging
→ Carefully remove the fan from its packaging. Make sure to
avoid any shock.
→ Wear safety shoes and cut-resistant safety gloves.
;Check the device for transport damage. Damaged devices must no
longer be installed.
;Install the undamaged device according to your application.
4.2 Connecting the electrical system
DANGER
Electric voltage on the device
Electric shock
→ Always install a protective earth first.
→ Check the protective earth.
DANGER
Incorrect insulation
Risk of fatal injury from electric shock
→ Use only cables that meet the specified installation
requirements for voltage, current, insulation material, load etc.
→ Route cables such that they cannot be touched by any
rotating parts.
DANGER
Electrical load (>50 µC) between mains wire and
protective earth connection after switching of the supply
when switching multiple devices in parallel.
Electric shock, risk of injury
→ Make sure that sufficient protection against accidental contact
is provided.
Before working on the electrical connection, the
connections to the mains supply and PE must be shorted.
CAUTION
Electrical voltage
The fan is a built-in component and features no electrically
isolating switch.
→ Only connect the fan to circuits that can be switched off with
an all-pole separating switch.
→ When working on the fan, you must switch off the
installation/machine in which the fan is installed and secure it
from being switched on again.
NOTE
Interferences and failures are possible
Maintain a distance to the power supply line when routing the
control lines of the device.
→ Ensure a sufficiently large clearance.
Recommendation: clearance > 10 cm (separate cable
routing)
NOTE
Water penetration into leads or wires
Water enters at the cable end on the customers side and can
damage the device.
→ Make sure that the cable end is connected in a dry
environment.
Connect the device only to circuits that can be switched off
using an all-pole disconnecting switch.
4.2.1 Prerequisites
;Check whether the data on the type plate agree with the connection
data.
;Before connecting the device, ensure that the supply voltage matches
the operating voltage of the device.
;Only use cables designed for current according to the type plate.
For determining the cross-section, follow the basic principles in
accordance with EN 61800-5-1. The protective earth must have a
cross-section equal to or greater than the outer conductor cross-
section.
We recommend the use of 105°C cables. Ensure that the minimum
cable cross-section is at least
AWG26/0.13 mm².
Earth wire contact resistance to EN 61800-5-1
Compliance with the impedance specifications to EN 61800-5-1 for the
protective earth circuit must be verified in the end application.
Depending on the installation situation, it may be necessary to install an
additional protective earthing conductor via the additional protective earth
connection point available on the device.
The protective earth connection point is located on the housing and has
a protective earth symbol and a bore hole.
4.2.2 Power supply connection, fuse protection
Assignment of conductor cross-sections and the fuse protection required
for them (overload protection only, no device protection).
Nominal
voltage
Safety
fuse
Automatic
circuit
breaker
Wire
cross-
section
Wire
cross-
section
VDE UL VDE mm² *AWG
3/PE AC
380 - 480
VAC
16 A 15 A C16A 1.5 16
3/PE AC
380 - 480
VAC
20 A 20 A C20A 2.5 14
3/PE AC
380 - 480
VAC
25 A 25 A C25A 4.0 12
3/PE AC
380 - 480
VAC
32 A 30 A C32A 6.0 10
* AWG = American Wire Gauge
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Operating instructions
K3G800-AQ03-01
Translation of the original operating instructions
4.2.3 Idle current
Because of the EMC filter integrated for compliance with EMC
limits (interference emission and interference immunity), idle
currents in the mains cable can be measured even when the
motor is at a standstill and the mains voltage is switched on.
●The values lie in a range of typical < 350 mA.
●The effective power in this operating state (readiness for operation) is
simultaneously at typical < 6 W.
4.2.4 Residual current operated device
Only universal (type B or B+) RCD protective devices are
permitted. Like frequency inverters, RCD protective devices
cannot provide personal safety while operating the device.
When switching on the power supply of the device, pulsed
charge currents from the capacitors in the integrated EMC filter
can lead to the RCD protective devices triggering without
delay. We recommend residual current devices with a trigger
threshold of 300 mA and delayed triggering (super-resistant,
characteristic K).
4.2.5 Leakage current
For asymmetrical power systems or if a phase fails, the
leakage current can increase to a multiple of the nominal value.
4.2.6 Locked-rotor protection
Due to the locked-rotor protection, the start-up current (LRA) is
equal to or less than the nominal current (FLA).
4.3 Connection in terminal box
4.3.1 Preparing connection lines for the connection
Strip the cable just enough so that the screwed cable gland is tight and
the terminals are relieved of strain. Tightening torque, see chapter 3.1
Product drawing.
Fig. 1: Recommended stripping lengths in mm (inside the terminal box)
Legend: CL = control lines
4.3.2 Connecting cables with terminals
WARNING
Terminals and connections have voltage even with a
unit that is shut off
Electric shock
→ Wait five minutes after disconnecting the voltage at all poles
before opening the device.
;Remove the cap from the screwed cable gland.
Remove the cap only in those places where cables are inserted.
;Insert the line(s) (not included in the standard scope of delivery) into
the terminal box.
;First connect the "PE" (protective earth) connection.
;Connect the lines to the corresponding terminals.
Use a screwdriver to do so.
During the connection work, ensure that no cables splice off.
Fig. 2: Connecting the wires to terminals
;Seal the terminal box.
4.3.3 Cable routing
No water may penetrate along the cable in the direction of the cable gland.
When routing the cable, ensure that the screwed cable glands are
arranged at the bottom. The cables must always be routed downwards.
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Operating instructions
K3G800-AQ03-01
Translation of the original operating instructions
Fig. 3: Cable routing for fans installed upright.
4.4 Factory settings
Factory settings with which the device is pre-set by ebm-papst.
Control mode
parameter set 1
PWM controlling
Control mode
parameter set 2
PWM controlling
Fan / device adress 01
Max. PWM / % 100
Min. PWM / % 8
Save set value to
EEPROM
Yes
Set value control Analogue (linear)
Control function
parameter set 1
Positive (heating)
Control function
parameter set 2
Positive (heating)
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Operating instructions
K3G800-AQ03-01
Translation of the original operating instructions
4.5 Connection screen
No. Conn. Designation Function / assignment
KL 1 1 L1 Mains supply connection, supply voltage 3~380-480 VAC; 50/60 Hz
KL 1 2 L2 Mains supply connection, supply voltage 3~380-480 VAC; 50/60 Hz
KL 1 3 L3 Mains supply connection, supply voltage 3~380-480 VAC; 50/60 Hz
PE PE Earth connection, PE connection
KL 2 1 NO Status relay, floating status contact; normally open; close with error
KL2 2 COM Status relay; floating status contact; changeover contact; common connection; contact rating 250 VAC / max.
2 A (AC1) / min. 10 mA
KL2 3 NC Status relay, floating status contact; break with error
KL 3 1 RSA Bus connection RS-485, RSA, MODBUS RTU; SELV
KL 3 2 RSB Bus connection RS-485, RSB, MODBUS RTU; SELV
KL 3 3 / 10 GND Signal ground for control interface; SELV
KL 3 4 Ain1 U Analogue input 1, set value: 0-10 V, Ri = 100 kΩ, parametrisable curve, only usable as alternative to input
Ain1; SELV
KL 3 5 + 10 V Fixed voltage output 10 VDC, +10 V ±3%, max. 10 mA, short-circuit-proof, power supply for external
devices (e.g. potentiometer), SELV
KL 3 6 Ain1 I Analogue input 1, set value: 4-20 mA; Ri = 100 Ω, parametrisable curve, only usable as alternative to input
Ain1 U; SELV
KL 3 7 Din1 Digital input 1: enabling of electronics,
enabling: open pin or applied voltage 5-50 VDC
disabling: bridge to GND or applied voltage <1 VDC
reset function: triggers software reset after a level change to <1 VDC; SELV
KL 3 8 Din2 Digital input 2: parameter set switch 1/2, according to EEPROM setting, the valid/used parameter set can be
selected via bus or via digital input DIN2.
Parameter set 1: open pin or applied voltage 5-50 VDC
Parameter set 2: bridge to GND or applied voltage <1 VDC; SELV
KL 3 9 Din3 Digital input 3: controller function of integrated controller, according to EEPROM setting, the controller function
of the integrated controller is normally/inversely selectable per bus or per digital input
normal: open pin or applied voltage 5-50 VDC
inverse: bridge to GND or applied voltage <1 VDC; SELV
KL 3 11 Ain2 U Analogue input 2, actual value: 0-10 V, Ri = 100 kΩ, parametrisable curve, only usable as alternative to input
Ain2; SELV
KL 3 12 + 20 V Fixed voltage output 20 VDC, +20 V +25/-10%, max. 50 mA, short-circuit-proof, power supply for external
devices (e.g. sensors); SELV
KL 3 13 Ain2 I Analogue input 2, actual value: 4-20 mA, Ri = 100 Ω, parametrisable curve, only usable as alternative to
input Ain2 U; SELV
KL 3 14 Aout Analogue output 0-10 VDC, max. 5 mA, output of the current motor level control coefficient / motor speed
parametrisable curve; SELV
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Operating instructions
K3G800-AQ03-01
Translation of the original operating instructions
4.6 Checking the connections
;Make sure that the power is off (all phases).
;Secure it from being switched on again.
;Check the correct fit of the connection lines.
;Screw the terminal box cover closed again. Terminal box tightening
torque, see chapter 3.1 Product drawing.
;Route the connecting cables in the terminal box so that the terminal
box cover closes without resistance.
;Use all plug screws (the entire number). In doing so, insert the
screws manually to avoid damage to the thread.
;Make sure that the terminal box is correctly closed and sealed and
that all screws and screwed cable glands are properly tightened.
4.7 Switch on device
The device may only be switched on if it has been installed properly and
in accordance with its intended use, including the required safety
mechanisms and professional electrical connection. This also applies for
devices which have already been equipped with plugs and terminals or
similar connectors by the customer.
WARNING
Hot motor housing
Fire hazard
→ Ensure that no combustible or flammable materials are
located close to the fan.
;Inspect the device for visible external damage and the proper function
of the protective features before switching it on.
;Check the air flow paths of the fan for foreign objects and remove any
that are found.
;Apply the nominal voltage to the voltage supply.
;Start the device by changing the input signal.
4.8 Switching off the device
Switching off the device during operation:
;Switch off the device via the control input.
;Do not switch the motor (e.g. in cyclic operation) on and off via power
supply.
Switching off the device for maintenance work:
;Switch off the device via the control input.
;Do not switch the motor (e.g. in cyclic operation) on and off via power
supply.
;Disconnect the device from the supply voltage.
;When disconnecting, be sure to disconnect the earth wire connection
last.
5. INTEGRATED PROTECTIVE FUNCTIONS
The integrated protective functions cause the motor to switch off
automatically in case of faults described in the table.
Malfunctions Description / Function of
safety feature
Rotor position detection error An automatic restart occurs.
Locked rotor ;After the blockage is
removed, the motor restarts
automatically.
Line under-voltage (mains input
voltage outside of permitted
nominal voltage)
;If the mains supply voltage
returns to permitted values, the
motor restarts automatically.
Phase failure A phase of the supply voltage
fails for at least 5 s.
;If all phases are correctly
supplied again, the motor
automatically restarts after 10 -
40 s.
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Operating instructions
K3G800-AQ03-01
Translation of the original operating instructions
6. MAINTENANCE, MALFUNCTIONS, POSSIBLE
CAUSES AND REMEDIES
Do not perform any repairs on your device. Return the device to ebm-
papst for repair or replacement.
WARNING
Terminals and connections have voltage even with a
unit that is shut off
Electric shock
→ Wait five minutes after disconnecting the voltage at all poles
before opening the device.
CAUTION
If control voltage is applied or a speed setpoint is stored,
the motor automatically restarts, e.g. after a power failure.
Danger of injury
→ Keep out of the danger zone of the device.
→ When working on the device, switch off the mains
supply voltage and secure the latter from being switched on
again.
→ Wait until the device stops.
→ After working on the device, remove any used tools or
other objects from the device.
If the device remains out of use for over four months, we
recommend switching the device on for at least four hours at full
speed to allow any condensate to evaporate and to move the
bearings.
Malfunction/error Possible cause Possible remedy
Impeller running
roughly
Imbalance in rotating
parts
Clean the device; if
imbalance is still
evident after
cleaning, replace the
device.
If you have
attached any weight
clips during cleaning,
make sure to
remove them
afterwards.
Motor does not turn Mechanical blockage Switch off, de-
energise, and
remove mechanical
blockage.
Mains supply
voltage faulty
Check mains supply
voltage,
restore power
supply.
Important! The error
message resets
automatically.
The device starts
up again
automatically without
advance warning.
Faulty connection De-energise, correct
connection, see
connection diagram.
Motor winding broken Replace device
Insufficient cooling Improve cooling. Let
the device cool
down.
To reset the error
message, switch off
the mains supply
voltage for a min. of
25 s and switch it on
again.
Alternatively, reset
the error message
by applying a control
signal of <0.5 V to
DIN1 or by short
circuiting Din1 to
GND.
Ambient temperature
too high
Reduce the ambient
temperature. Let the
device cool down.
To reset the error
message, switch off
the mains supply
voltage for a min. of
25 s and switch it on
again.
Alternatively, reset
the error message
by applying a control
signal of <0.5 V to
DIN1 or by short
circuiting Din1 to
GND.
Unacceptable
operating point (e.g.
counterpressure is
too high)
Correct the operating
point. Let the device
cool down.
To reset the error
message, switch off
the mains supply
voltage for a min. of
25 s and switch it on
again.
Alternatively, reset
the error message
by applying a control
signal of <0.5 V to
DIN1 or by short
circuiting Din1 to
GND.
If you have any other problems, contact ebm-papst.
Item no. 51234-5-9970 · ENG · Revision 82539 · Release 2014-05-08 · Page 11 / 12
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone [phone] · Fax [phone] · [email protected] · www.ebmpapst.com

Operating instructions
K3G800-AQ03-01
Translation of the original operating instructions
6.1 Cleaning
NOTE
Damage to the device during cleaning.
Malfunction possible
→ Do not clean the device using a water jet or high-pressure
washer.
→ Do not use any cleaners containing acids,
bases or solvents.
→ Do not use any pointed or sharp-edged objects to clean.
6.2 Safety test
NOTE
High-voltage test
The integrated EMC filter contains Y capacitors. Therefore, the
trigger current is exceeded when AC testing voltage is applied.
→ Test the device with DC voltage when you carry out the
high-voltage test required by law. The voltage to be used
corresponds to the peak value of the AC voltage required by
the standard.
What has to
be tested?
How to test? Frequency Which
measure?
Check the
protective
casing against
accidental
contact for
damage and to
ensure that it is
intact
Visual inspection At least every
6 months
Repair or
replacement of
the device
Check the
device for
damage to
blades and
housing
Visual inspection At least every
6 months
Replacement
of the device
Mounting the
connection lines
Visual inspection At least every
6 months
Fasten
Check the
insulation of
the wires for
damage
Visual inspection At least every
6 months
Replace wires
Impeller for
wear/deposits/
corrosion and
damage
Visual inspection At least every
6 months
Clean or
replace impeller
Tightness of
screwed cable
gland
Visual inspection At least every
6 months
Retighten,
replace if
damaged
Condensate
discharge
holes for
clogging, as
necessary
Visual inspection At least every
6 months
Open bore holes
Item no. 51234-5-9970 · ENG · Revision 82539 · Release 2014-05-08 · Page 12 / 12
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone [phone] · Fax [phone] · [email protected] · www.ebmpapst.com