Vibration Test; Cleaning; Safety Test - Ebmpapst R3G250-AT39-71 Operating Instructions Manual

Ec centrifugal fan

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R3G250-AT39-71

Faulty connection

Thermal overload

protector responded

Overtemperature of

Insufficient cooling

electronics/motor

Ambient temperature

too high

Unacceptable

operating point

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

6.1 Vibration test

Checking the fan for mechanical vibrations based on ISO 14694.

Recommendation: every 6 months. Maximum vibration severity is 3.5

mm/s measured at the motor's fastening diameter on the motor support

plate towards and perpendicular to the motor's axis of rotation.

Fig. 1: Example showing vibration measurement. Positioning of the

sensors will vary depending on the device and the circumstances of

installation.

Item no. 50237-5-9970 · ENG · Revision 90396 · Release 2016-09-21 · Page 10 / 11

ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · info1@de.ebmpapst.com · www.ebmpapst.com

Operating instructions

De-energise, correct

6.2 Cleaning

connection, see

connection diagram.

Allow motor to cool

off, locate and rectify

cause of error, if

necessary cancel

restart lock-out

Improve cooling. Let

the device cool down.

6.3 Safety test

To reset the error

message, switch off

the mains supply

voltage for a min. of

25 s and switch it on

again.

Reduce the ambient

temperature.

Reset by reducing

control input to 0.

Correct the operating

What has to

point. Let the device

be tested?

cool down.

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

Mounting of

protective earth

connection

Check the

insulation of the

wires for damage

Impeller for

wear/deposits/

corrosion and

damage

Condensate

discharge holes

for clogging, as

necessary

Abnormal

bearing noise

NOTE

Damage to the device during cleaning

Malfunction possible

→ Do not clean the device using a water jet or high-pressure

cleaner.# Do not use any acid, alkali or solvent-

basedcleaning agents.# Do not use any pointed or sharp-

edged objects for cleaning

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.

How to test?

Frequency