Helios InlineVent KR EC Série Notice De Montage Et D'utilisation page 39

Installation and Operating Instructions
EC Rectangular Centrifugal Fans – InlineVent
Series SKR EC: all types
"Blink"-code (see table below for diagnostics)
OFF
ON
1 x
2 x
3 x
4 x
5 x
6 x
7 x
8 x
9 x
LED Code Relay K1 *
OFF Inactive, 11
14 interrupted
ON Active, 11 -
14 bridged
1 x Active, 11 -
14 bridged
2 x Active, 11 -
14 bridged
3 x Inactive, 11 -
14 interrupted
4 x Inactive, 11 -
14 interrupted
Inactive, 11 -
5 x
14 interrupted
6 x Inactive, 11 -
14 interrupted
Fig.12
Cause /
>> Explanation
No mains voltage
Normal operation without fault
No enable = OFF
Terminals "D1" - "24 V / 10 V" (digital In 1)
Not bridged.
Active temperature management
In order to protect the unit from damage due
to internal temperatures which are too high, it
has an active temperature management sys-
tem. In case of a temperature increase above
the set limit value, the modulation reduces
on a linear scale. In order to prevent external
deactivation of the complete system in case of
reduced operation due to internal temperatures
which are too high (in case of this permissible
operation for the controller), an error message
is not issued via the relay.
HALL-IC
Incorrect signal from Hall-ICs, error in the com-
mutation.
>> Incorrect internal connection!
Phase failure ((only for 3 ~ types)
The controller has integrated phase monito-
ring, and in case of mains fault (blown fuse or
phase failure), the unit deactivates with a delay
(approx. 200 ms). Only works if controller is
sufficiently loaded.
Motor blocked
If commutation is present and no speed > 0 is
measured for 8 sec., the "Motor blocked" error
is triggered.
IGBT fault
Ground fault or short circuit in the motor win-
ding
17
® KR EC ... / SKR EC
LED
Controller response /
>> Repair
Mains voltage available?
>> Unit switches "off" and back "ON"
automatically when the voltage is res-
tored
Deactivation via external contact
( ð digital input).
If the temperature drops, the modulation
increases on a linear scale.
>> Controller cooling control
Controller deactivates motor. Automatic
restart if no more faults are detected.
>> Exchange fan / motor!
After deactivation, the unit is restarted
after approx. 15 sec. if there is a suffi-
cient power supply. This takes place until
all 3 mains phases are available.
>> Check power supply!
EC Controller deactivates, restart after
approx. 2,5 sec. Definitive deactivation if
fourth restart is unsuccessful.
>> Reset by disconnecting the mains
voltage then required.
>> Check whether motor can rotate
freely.
EC Controller deactivates, restart after
approx. 60 sec. ð
Code 9.
Definitive deactivation if another error is
detected within 60 sec. after the second
restart.
>> Reset by disconnecting the mains
voltage then required!
EN