ebm-papst M3G112-GA53-72 User Manual

M3G112-GA53-72

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 Electromagnetic radiation

21.6 Mechanical movement

21.7 Hot surface

21.8 Transport

21.9 Storage

21.10 Disposal

32. PROPER USE

43. TECHNICAL DATA

43.1 Product drawing

53.2 Nominal data

53.3 Technical features

53.4 Mounting data

53.5 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

74.4 Factory settings

84.5 Connection screen

94.6 Checking the connections

94.7 Switch on device

94.8 Switching off the device

95. INTEGRATED PROTECTIVE FUNCTIONS

106. MAINTENANCE, MALFUNCTIONS, POSSIBLE

106.1 Cleaning

106.2 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

Only specialised electrical personnel may install the device, perform the
test run and work on the electrical system.
Only trained and authorised specialist personnel are permitted to
transport, unpack, assemble, operate or maintain the device, or to use it
in any other manner.

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.

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.

Item no. 50876-5-9970 · Revision 74898 · Release 2013-08-20 · Page 1 / 10

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

M3G112-GA53-72

Operating instructions

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.

CAUTION
The motor restarts automatically when operating voltage
is applied, e.g. after a power failure.

Danger of injury

→ Keep out of the danger zone of the motor.

→ When working on the motor, switch off the mains supply

voltage and secure the latter from being switched on again.

→ Wait until the motor stops.

1.5 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.

1.6 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.

WARNING
Flying parts

If the motor is operated with attached fan blades, missing safety

Translation of the original operating instructions

devices may cause balancing weights or broken fan blades to
be ejected and cause bodily injuries.

→ Take the appropriate safety measures; e.g. install guard

grilles.

→ Keep out of the exhaust zone.

1.7 Hot surface

CAUTION
High temperature at the electronics enclosure

Danger of burn injuries

→ Ensure that sufficient protection against accidental contact is

provided.

1.8 Transport

CAUTION
Transport of motor

Crushing hazard

→ Wear safety shoes and cut-resistant safety gloves.

→ Transport the motor in its original packaging only.

→ Secure the device so that it does not slip, e.g. by using a

clamping strap.

1.9 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 3.5 Transport and storage conditions.

; Please make sure that all screwed cable glands are fitted with

dummy plugs.

1.10 Disposal

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

Item no. 50876-5-9970 · Revision 74898 · Release 2013-08-20 · Page 2 / 10

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

M3G112-GA53-72

Operating instructions

2. PROPER USE

The device is designed exclusively for use as a drive motor.
Any other or secondary use is deemed improper and constitutes a
misuse of the device.
Installations on the customer's side must meet the mechanical, thermal
and service life-related stresses that can occur.

Proper use also includes:

● Only using the device in stationary systems.

● Carrying out all maintenance.

● Using the device in accordance with the permitted ambient

temperature, see chapter 3.5 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:

● 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

Item no. 50876-5-9970 · Revision 74898 · Release 2013-08-20 · Page 3 / 10

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

M3G112-GA53-72

3. TECHNICAL DATA

3.1 Product drawing

Operating instructions

All measures have the unit mm.

1 Direction of rotation counter-clockwise, seen on shaft
2 Through-hole for screw M10
3 Depth of screw max. 12 mm
4 Depth of screw max. 16 mm
5 Cable diameter: min. 4 mm, max. 10 mm, tightening torque: 2±0.3 Nm
6 Tightening torque 3.5±0.5 Nm
7 Groove depth 3.5 mm

Translation of the original operating instructions

Item no. 50876-5-9970 · Revision 74898 · Release 2013-08-20 · Page 4 / 10

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

M3G112-GA53-72

Operating instructions

3.2 Nominal data

Motor M3G112-GA

Phase 1~
Nominal voltage / VAC 230
Nominal voltage
range / VAC
Frequency / Hz 50/60

Type of data definition ml
State prelim.
Speed / min
Power input / W 1330
Power output / W 1100
Current draw / A 5.8
Rated torque / Ncm 350
Min. ambient temperature
/ °C
Max. ambient temperature
/ °C

ml = Max. load · me = Max. efficiency · fa = Running at free air
cs = Customer specs · cu = Customer unit

Subject to alterations

-1

200 .. 277

3000

-25

40

3.3 Technical features

Mass 14.8 kg
Size 112 mm
Material of electronics
housing
Housing material Die-cast aluminium
Direction of rotation Counter-clockwise, seen on shaft
Type of protection IP 55
Insulation class "B"
Humidity class F3-1
Mounting position Any
Cooling bore / aperture Rotor-side
Operation mode S1
Motor bearing Ball bearing
Technical features - Output 10 VDC, max. 10 mA

Translation of the original operating instructions

Die-cast aluminium

- Output 20 VDC, max. 50 mA

- Output for slave 0-10 V

- Tach output

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

- Alarm relay

- Integrated PID controller

- Motor current limit

- PFC, active

- 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)
Electrical leads Via terminal box
Motor protection Thermal overload protector (TOP) wired

Protection class I (if earth wire is connected by customer)
Product conforming
to standard

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 mA

internally

EN 61800-5-1; CE

3.4 Mounting data

; Secure the mounting screws against accidentally coming loose (e.g.

by using self-locking screws).

Strength class for
mounting screws

You can obtain additional mounting data from the product drawing if
necessary.

8.8

3.5 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

Item no. 50876-5-9970 · Revision 74898 · Release 2013-08-20 · Page 5 / 10

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

M3G112-GA53-72

Operating instructions

4. CONNECTION AND START-UP

4.1 Connecting the mechanical system

WARNING
Hot motor housing

Fire hazard

→ Ensure that no combustible or flammable materials are

located close to the motor.

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

→ Carefully 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

Translation of the original operating instructions

The motor is a built-in component and features no electrically
isolating switch.

→ Only connect the motor to circuits that can be switched off

with an all-pole separating switch.

→ When working on the motor, you must switch off the

system/machine in which the motor is installed and secure it
from being switched on again.

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.

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 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 < 250 mA.

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

simultaneously at typical < 4 W.

4.2.3 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).

Item no. 50876-5-9970 · Revision 74898 · Release 2013-08-20 · Page 6 / 10

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

M3G112-GA53-72

4.2.4 Locked-rotor protection

Due to the locked-rotor protection, the start-up current (LRA) is
equal to or less than the nominal current (FLA).

Operating instructions

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.

4.3.2 Connecting cables with terminals

; 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.

; Insert the strands until they meet resistance.

; 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.

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 1
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

Translation of the original operating instructions

PWM controlling

PWM controlling

Yes

Positive (heating)

Positive (heating)

Item no. 50876-5-9970 · Revision 74898 · Release 2013-08-20 · Page 7 / 10

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

M3G112-GA53-72

Operating instructions

4.5 Connection screen

No. Pin Signal Function / assignment
KL1 1 L1 Mains supply connection, supply voltage 1~200-277 V AC; 50/60 Hz
KL1 2 N Mains supply connection, supply voltage 1~200-277 V AC; 50/60 Hz
PE PE Earth connection, PE connection
KL2 1 NO Status relay, floating status contact; option 1: close with error; option 2: close with run monitor error message
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; option 1: break with error; option 2: break with error for run monitor error

message

KL3 1 RSA Bus connection RS485; RSA; MODBUS RTU
KL3 2 RSB Bus connection RS485; RSB; MODBUS RTU
KL3 3 GND Signal ground for control interface
KL3 4 Ain1 U Analog input 1 (set value); 0-10 V; Ri= 100kOhm; parametrisable curve; only usable as alternative to input

Ain1 I

KL3 5 +10 V Fixed voltage output 10 VDC; + 10 V +/-3%; max. 10 mA; short circuit proof; power supply for ext. devices

(e.g. potentiometer)

KL3 6 Ain1 I Analog input 1 (set value); 4-20 mA; Ri= 100 Ohm; parametrisable curve; only usable as alternative to input

Ain1 U

KL3 7 Din1 Digital input 1: enabling of electronics; enabling: open pin or applied voltage 5 to 50 VDC; disabling: bridge to

GND or applied voltage < 0.8 VDC; reset function: triggers software reset after a level change to <0.8 V

KL3 8 Din2 Digital input 2: parameter set switch 1/2; according to EEPROM setting, the valid/used parameter set is

selectable per BUS or per digital input DIN2. Parameter set 1: open pin or applied voltage 5 to 50 VDC;
parameter set 2: bridge to GND or applied voltage < 0.8 VDC

KL3 9 Din3 Digital input 3: control characteristic of the integrated controller; according to EEPROM setting, the control

characteristic of the integrated controller is normally/inversely selectable per BUS or per digital input; normal:
open pin or applied voltage 5 to 50 VDC; inverse: bridge to GND or applied voltage < 0.8 VDC

KL3 10 GND Signal ground for control interface
KL3 11 Ain2 U Analog input 2; actual sensor value 0-10 V; Ri= 100kOhm; parametrisable curve; only usable as alternative to

input Ain2 I

KL3 12 +20 V Fixed voltage output 20 VDC; + 20V +25/-10%; max. 50 mA; short circuit proof; power supply for ext.

devices (e.g. sensors)

KL3 13 Ain2 I Analog input 2; actual sensor value 4-20 mA; Ri= 100 Ohm; parametrisable curve; only alternative to input

Translation of the original operating instructions

KL3 14 Aout Analogue output 0-10 V; max. 5 mA; output of the actual motor control factor (output voltage of electronics)/ of

Ain2 U

the actual motor speed. Parametrisable curve.

Item no. 50876-5-9970 · Revision 74898 · Release 2013-08-20 · Page 8 / 10

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

M3G112-GA53-72

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

; 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 on 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 on 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.

Translation of the original operating instructions

Item no. 50876-5-9970 · Revision 74898 · Release 2013-08-20 · Page 9 / 10

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

M3G112-GA53-72

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.

CAUTION
The motor restarts automatically when operating voltage
is applied, e.g. after a power failure.

Danger of injury

→ Keep out of the danger zone of the motor.

→ When working on the motor, switch off the mains supply

voltage and secure the latter from being switched on again.

→ Wait until the motor stops.

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
Rotor 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

Thermal overload
protector responded

Clean the device, if
imbalance still
evident after
cleaning, replace
device

energise, and
remove mechanical
blockage.
Check mains supply
voltage,
restore power
supply,
apply control signal.

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

Overtemperature of
electronics/motor

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 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?

Device for
damage
Mounting the
connection lines
Check the
insulation of
the wires for
damage
Condensate
discharge
holes for
clogging, as
necessary

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.
Ambient temperature
too high

Unacceptable
operating point

How to test? Frequency Which

Visual inspection At least every

6 months

Visual inspection At least every

6 months

Visual inspection At least every

6 months

Visual inspection At least every

6 months

Reduce the ambient

temperature.

Reset by reducing

control input to 0.

Correct the operating

point. Let the device

cool down.

measure?

Replace device

Fasten

Replace wires

Open bore holes

Item no. 50876-5-9970 · Revision 74898 · Release 2013-08-20 · Page 10 / 10

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