Siemens SIMOTICS M-1PH818 Operating And Installation Instructions Download

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Operating instructions

K3G280-RR04-H9

Siemens AG PD LD Nbg.

Translation of the original operating instructions

6. MAINTENANCE, MALFUNCTIONS, POSSIBLE
CAUSES AND REMEDIES

Do not perform any repairs on your device. Send the device to ebm-
papst for repair or replacement.

WARNING
Live terminals and connections even with device
switched off

Electric shock
→ Wait five minutes after disconnecting the voltage at all poles

before opening the device.

CAUTION
If control voltage or a stored speed set value is applied,
the motor will restart automatically, e.g. after a power
failure.

Risk of injury
→ Keep out of the device’s danger zone.# When working on

the device, switch off the line voltage and ensure that it
cannot be switched back on.

→ Wait until the device comes to a stop.
→ After working on the device, remove any tools or other

objects from the device.

If the device is out of use for some time, e.g. when in storage,
we recommend switching it on for at least two hours to allow
any condensation to evaporate and to move the bearings.

Malfunction/fault

Possible cause

Possible remedy

Impeller not
running smoothly

Imbalance in rotating
parts

Clean the device;
replace it if imbalance
persists after cleaning.
Make sure no
weight clips are
removed during
cleaning.

Motor not turning

Mechanical blockage

Switch off, isolate
from supply and
remove mechanical
blockage.

Line voltage faulty

Check line voltage,
restore power
supply, apply control
signal.

Faulty connection

Isolate from supply,
correct connection;
see connection
diagram.

Thermal overload
protector activated

Allow motor to cool
off, locate and rectify
cause of error,
release restart lockout
if necessary

Motor/electronics
overtemperature

Deficient cooling

Improve cooling. Let
the device cool down.
To reset the error
message, switch off
the line voltage for at
least 25 s and then
switch it on again.

Ambient temperature
too high

Reduce the ambient
temperature.
Reset by reducing
control input to 0.

Impermissible point of
operation

Correct the operating
point. Let the device
cool down.

In the event of further malfunctions, contact ebm-papst.

6.1 Vibration testing

Checking of fan for mechanical vibration based on ISO 14694.
Recommendation: Every 6 months. Max. vibration severity is 3.5 mm/
s, measured at the motor fastening diameter on the motor support plate in
the direction of the motor axis of rotation and perpendicular to this.

Fig. 1: Example illustrating vibration measurement. The arrangement of
the sensors depends on the device concerned and the installation
situation.

6.2 Cleaning

NOTE
Damage to the device during cleaning

Malfunction possible
→ Do not clean the device using a high-pressure cleaner.
→ Do not use acid, alkali or solvent-based cleaning agents.
→ Do not use any pointed or sharp-edged objects for cleaning

6.3 Safety inspection

NOTE
High-voltage test

The integrated EMC filter has Y capacitors. The tripping current
is exceeded when AC testing voltage is applied.
→ Test the device with DC voltage when you perform the

legally required high-voltage test. The voltage to be used
corresponds to the peak value of the AC voltage required by
the standard.

What to check

How to check

How often

What action?

Contact
protection
cover for
intactness or
damage

Visual inspection At least every

6 months

Repair or
replacement of
device

Item no. 55769-5-9970 · ENU · Change 94781 · Approved 2017-09-29 · Page 11 / 12

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

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