ebm-papst R3G355-AY40-01 User Manual

R3G355-AY40-01

Operating instructions

ebm-papst Mulfingen GmbH & Co. KG

Bachmühle 2
D-74673 Mulfingen
Phone [phone]
Fax [phone]
[e-mail]
www.ebmpapst.com

CONTENTS

CAUSES AND REMEDIES

Translation of the original operating instructions

1. 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.

11. SAFETY REGULATIONS AND NOTES

11.1 Levels of hazard warnings

11.2 Staff qualification

11.3 Basic safety rules

11.4 Electrical voltage

21.5 Safety and protective functions

21.6 Electromagnetic radiation

21.7 Mechanical movement

21.8 Emission

21.9 Hot surface

21.10 Storage

21.11 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

63.7 Electromagnetic compatibility

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

126.1 Cleaning

126.2 Safety test

1.1 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

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

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

; 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.

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R3G355-AY40-01

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

Interference from electromagnetic radiation is possible, e.g. in conjunction
with open and closed-loop control devices.
If unacceptable emission intensities occur when the fan is installed,
appropriate shielding measures have to be taken by the user.

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
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 Storage

; 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.

; 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.

DANGER
Rotating device

Body parts that come into contact with the rotor and impeller
can be injured.

Translation of the original operating instructions

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→ Secure the device against accidental contact.

→ Before working on the system/machine, wait until all

parts have come to a standstill.

1.11 Disposal

When disposing of the device, please comply with all relevant
requirements and regulations applicable in your country.

R3G355-AY40-01

Operating instructions

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.

● 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.

Translation of the original operating instructions

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R3G355-AY40-01

3. TECHNICAL DATA

3.1 Product drawing

Operating instructions

All measures have the unit mm.

1 Cable diameter: min. 4 mm, max. 10 mm; tightening torque: 4±0.6 Nm
2 Accessory part: inlet nozzle 35675-2-4013 not included in the standard scope of delivery; other inlet nozzles on request
3 Depth of screw 12 - 16 mm
4 Tightening torque 3.5±0.5 Nm

Translation of the original operating instructions

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R3G355-AY40-01

Operating instructions

3.2 Nominal data

Motor M3G112-GA

Phase 3~
Nominal voltage / VAC 400
Nominal voltage

380 .. 480

range / VAC
Frequency / Hz 50/60

Type of data definition ml
Speed / min

-1

2600

Power input / W 1700
Current draw / A 2.6
Min. ambient temperature

-25

/ °C
Max. ambient

40

temperature
/ °C

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

*

Specific ratio = 1 + pfs / 100 000 Pa

*

1.01

Actual Request

2013

Overall efficiency ηes / % 66.1 50 54
Efficiency grade N 74.1 58 62
Power input Ped / kW 1.72
Air flow qv / m³/h 4325
Pressure increase total psf / Pa 885
Speed n / min

Data definition with optimum efficiency.

The ErP data is determined using a motor-impeller combination in a standardised
measurement configuration.

-1

2585

3.4 Technical features

Mass 13 kg
Size 355 mm
Surface of rotor Coated in black
Material of electronics
housing
Material of impeller Sheet aluminium, welded
Number of blades 7
Direction of rotation Clockwise, seen on rotor
Type of protection IP 54
Insulation class "B"

Translation of the original operating instructions

Humidity class F4-1
Mounting position Shaft horizontal or rotor on bottom; rotor

Condensate discharge
holes
Operation mode S1
Motor bearing Ball bearing

Die-cast aluminium

on top on request
Rotor-side

Request
2015

Technical features - PFC, passive

- Control input 0-10 VDC / PWM

- Over-temperature protected
electronics / motor

- Alarm relay

- Integrated PID controller

- Input for sensor 0-10 V or 4-20 mA

- Output for slave 0-10 V

- RS485 MODBUS RTU

- Motor current limit

- Soft start

- Line undervoltage / phase failure
detection

- Output 10 VDC, max. 10 mA

- Output 20 VDC, max. 50 mA

- External 24 V input (programming)

Touch current acc.

<= 3.5 mA

IEC 60990 (measuring
network Fig. 4, TN
system)
Electrical leads Via terminal box
Motor protection Thermal overload protector (TOP) wired

internally

Protection class I (if protective earth is connected by

customer)

Product conforming

CE

to standard
Approval 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

8.8

mounting screws

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)
Min. permissible
ambient motor temp.
(transp./storage)

+80 °C

-40 °C

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R3G355-AY40-01

Operating instructions

3.7 Electromagnetic compatibility

EMC interference
immunity
EMC interference
emission

If several devices are switched in parallel on the mains side so
that the line current of the arrangement is in the range of 16 - 75
A, then this arrangement conforms to IEC 61000-3-12 provided
that the short-circuit power Ssc at the connection point of the
customer system to the public power system is greater than or
equal to 120 times the rated output of the arrangement.
It is the responsibility of the installation engineer or operator/
owner of the device to ensure, if necessary after consultation
with the network operator, that this device is only connected to
a connection point with a Ssc value that is greater than or equal
to 120 times the rated output of the arrangement.

Translation of the original operating instructions

Acc. to EN 61000-6-2

Acc. to EN 61000-6-3

4. CONNECTION AND START-UP

4.1 Connecting the mechanical system

CAUTION
Cutting and crushing hazard when removing the fan
from the packaging

→ Carefully hold the impeller to remove the device from its

packaging. Make sure to avoid any shock.

→ Wear safety shoes and cut-resistant safety gloves.

CAUTION
Heavy load when taking out the device

Bodily harm, e.g. back injuries, are possible.

→ Two people should remove the device out of its packaging

together.

; 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)

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R3G355-AY40-01

Operating instructions

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 cross­section.
We recommend the use of 105°C cables. Ensure that the minimum
cable cross-section is at least
AWG26/0.13 mm².

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

3/PE AC
380 - 480
VAC
3/PE AC
380 - 480
VAC
3/PE AC
380 - 480
VAC
3/PE AC
380 - 480
VAC

* AWG = American Wire Gauge

4.2.3 Idle current

● The values lie in a range of typical < 250 mA.

Translation of the original operating instructions

● The effective power in this operating state (readiness for operation) is

simultaneously at typical < 5 W.

Safety
fuse

VDE UL VDE mm² *AWG
16 A 15 A C16A 1.5 16

20 A 20 A C20A 2.5 14

25 A 25 A C25A 4.0 12

32 A 30 A C32A 6.0 10

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.

Automatic
circuit
breaker

Wire
cross­section

Wire
cross­section

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.

; Mount the screwed cable glands with the seal inserts provided in the

terminal box.

; 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.

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R3G355-AY40-01

Operating instructions

4.4 Factory settings

Factory settings with which the device is pre-set by ebm-papst.

Control mode
parameter set 1
Control mode
parameter set 2
Fan / device adress 01
Max. PWM / % 100
Min. PWM / % 5
Save set value to
EEPROM
Set value control Analogue (linear)
Control function
parameter set 1
Control function
parameter set 2

PWM controlling

PWM controlling

Yes

Positive (heating)

Positive (heating)

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.

Translation of the original operating instructions

Fig. 3: Cable routing for fans installed upright.

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R3G355-AY40-01

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

Translation of the original operating instructions

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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R3G355-AY40-01

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.

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)
Phase failure A phase of the supply voltage

; If the mains supply voltage

returns to permitted values, the

motor restarts automatically.

fails for at least 5 s.

; If all phases are correctly

supplied again, the motor

automatically restarts after 10 -

40 s.

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.

Translation of the original operating instructions

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R3G355-AY40-01

Operating instructions

6. MAINTENANCE, MALFUNCTIONS, POSSIBLE
CAUSES AND REMEDIES

Do not perform any repairs on your device. Return the device to ebm­papst 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 some time, e.g. when in
storage, we recommend switching the device on for at least
two hours to allow any condensate to evaporate and to move
the bearings.

Malfunction/error Possible cause Possible remedy
Impeller running
roughly

Motor does not turn Mechanical blockage Switch off, de-

Translation of the original operating instructions

Imbalance in rotating
parts

Mains supply
voltage faulty

Faulty connection De-energise, correct

Motor winding broken Replace device

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.

energise, and
remove mechanical
blockage.
Check mains supply
voltage,
restore power
supply.
Important! The error
message resets
automatically.
The device starts
up again
automatically without
advance warning.

connection, see
connection diagram.

Thermal overload
protector responded

Insufficient cooling Improve cooling. Let

Ambient temperature
too high

Unacceptable
operating point (e.g.
counterpressure is
too high)

Allow motor to cool
off, locate and rectify
cause of error, if
necessary cancel
restart lock-out

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.
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.
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.

Item no. 50307-5-9970 · ENG · Revision 82542 · Release 2014-05-08 · Page 11 / 12

ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone [phone] · Fax [phone] · [e-mail] · www.ebmpapst.com

R3G355-AY40-01

If you have any other problems, contact ebm-papst.

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?

Check the
protective
casing against
accidental
contact for
damage and to
ensure that it is
intact
Check the
device for
damage to
blades and
housing
Mounting the
connection lines
Check the
insulation of
the wires for
damage
Impeller for
wear/deposits/
corrosion and
damage
Tightness of
screwed cable
gland

Translation of the original operating instructions

Condensate
discharge
holes for
clogging, as
necessary

How to test? Frequency Which

Visual inspection At least every

Visual inspection At least every

Visual inspection At least every

Visual inspection At least every

Visual inspection At least every

Visual inspection At least every

Visual inspection At least every

6 months

6 months

6 months

6 months

6 months

6 months

6 months

Operating instructions

measure?

Repair or
replacement of
the device

Replacement
of the device

Fasten

Replace wires

Clean or
replace impeller

Retighten,
replace if
damaged
Open bore holes

Item no. 50307-5-9970 · ENG · Revision 82542 · Release 2014-05-08 · Page 12 / 12

ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone [phone] · Fax [phone] · [e-mail] · www.ebmpapst.com