Operating instructions
W3G800-KU21-D1
Translation of the original operating instructions
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.
Attention! The error
message resets
automatically.
Device restarts
automatically without
warning.
Faulty connection
Isolate from supply,
correct connection;
see connection
diagram.
Broken motor winding Replace device
Inadequate cooling
Improve cooling.
Allow the device to
cool down.
Ambient temperature
too high
Reduce the ambient
temperature. Allow
the device to cool
down.
Impermissible
operating point (e.g.
back pressure too
high)
Correct the operating
point. Allow the
device to cool down.
In the event of further malfunctions, contact ebm-papst.
6.1 Warning/status codes
The LED on the electronics housing shows the motor status with various
colors and flash codes. The flash codes have a frequency of 2 Hz.
Each flash code is followed by a pause lasting 3 seconds. The following
colors are used: Green: no warning or fault. Orange: There is a warning.
No user intervention is required for warnings. Red: There is at least one
error. See the following table. If there are multiple simultaneous errors,
their associated flash codes are displayed in succession. If there are
simultaneous warnings and errors, only the errors are displayed.
6.1.1 Warning codes
Number of pulses
Motor status - LED
orange
Message at status
relay
1
Current limitation in
action
2
Line impedance too
high (DC-link voltage
unstable)
3
Power limiter in action
4
Output stage
temperature high
5
Motor temperature high
6
Temperature inside
electronics high
7
DC-link voltage low
8
Braking mode: set in
case of external drive
in opposite direction
at high speed for
lengthy period
Yes
9
Calibration of rotor
position sensor in
progress
10
Actual speed is lower
than run monitoring
speed limit
Yes
11
Open circuit at analog
input or PWM input
for the set value
Yes
13
DC-link voltage high
15
Line voltage high
16
Shake-loose function
activated
6.1.2 Status codes
Manual reset by "Switch off line voltage - wait briefly - switch line
voltage back on" or, if provided,
via the "Fan enable/disable" input
Number of
pulses
Motor status -
LED red
Possible cause Possible
remedy
1
Phase failure or
line undervoltage
Missing phase
Poor power
supply quality
Check line
voltage
3
Output stage
overheating
Electronics
housing
contaminated
Provide better
cooling.
Manual reset
required
4
Communication
error between
master
controller and
slave controller
External
supply applied
via Vout for
setting
parameters.
Internal error
Switch off line
voltage
- wait -
switch back on
6
Motor
overheating
Ambient
temperature too
high
Impermissible
operating point
Reduce
ambient
temperature
Correct
operating point.
Manual reset
required
7
Hall sensor error Internal error
Switch off line
voltage
- wait -
switch back on
8
Motor blocked
Mechanical
blockage
Switch off
- check safe
isolation from
supply -
check
freedom of
movement of
rotor
Item no. 56589-5-9970 · ENU · Change 209539 · Approved 2021-02-01 · Page 14 / 16
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · [email protected] · www.ebmpapst.com
