A1 Status Out OC
off GND = ON
A2 Operation Out
OC *
off GND = ON
Cause
Explanation
Reaction of Controller
Adjustment
14 x
ON
Error peak current
If the motor current increases above the
speci
fi
ed limit (even in a short time-frame)
the device will switch-off.
After a switch off the controller waits for
5 seconds then the controller attempt a
start.
Arises within 60 sec. in series 5 further
disconnections a
fi
nal switch off with
fault indication follows.
Should no further switch off be ex-
ceeded in 60 sec. the counter will be
reset.
17 x
ON
Temperature alarm
Excess of the max. permissible inside tem-
perature.
Controller switches off motor. Automatic
restarting after cooling down.
Check installation of the device and
cooling of the controller.
*
for factory programmed function: Fault indication inverted
7.3
Behaviour in rotation by air current in reverse direction
In the STOP state (no release, no preset signal, no voltage supply) the motor controller does not
intervene when the fan turns in the wrong direction (e.g. due to a draught).
If the fan is started (= voltage ON), while being driven in the opposite direction to that set, the speed is
reduced controlled to
“
0
”
and restarted in the set direction of rotation.
The higher the speed to be reduced, the longer this process lasts.
Information
Do not disconnect the line voltage if, during an application, this might result in the disconnected fan
being propelled very powerfully in the reverse direction. This ensures a safe start at all times.
8
Service work
8.1
Repairs / maintenance
Attention!
•
Please read the Safety instructions chapter before working on the fan!
•
Before working on the fan, this must be disconnected from the power supply and secured against
switching back on!
•
No maintenance work at running fan!
•
Allow maintenance work to be carried out by trained specialists only.
•
Any faults detected in the electric system/modules/operating equipment must be corrected
immediately. If these faults are not corrected, the device/system is potentially very dangerous. The
device/system must therefore not be operated when it is faulty.
•
Wear safety clothing / shoes and cut-resistant safety gloves when handling.
•
Please observe the safety regulations and the worker
´
s protection rules by all maintenance and
service work (EN 50 110, IEC 364).
•
Fuses must always be only replaced; never repaired or bridged. The speci
fi
cations for the maximum
series fuse must always be adhered to (see Technical data). Only fuses cited in the electrical circuit
diagram may be used.
•
Generator operation can produce dangerous voltages (see safety instructions)!
•
Keep the airways of the fan free - danger because of objects dropping out!
•
Watch out for vibration free motion!
•
The impeller is subject to natural wear depending on the area of application and the conveying
medium. Deposits on the impeller can lead to imbalance and damage (danger of permanent
fracture). The impeller can burst!
•
If highly aggressive media for which the product is not suited are conveyed, the severe corrosion
may result in the impeller breaking. Any impellers corroded in this way must be replaced
immediately.
Assembly instructions
ECblue
Service work
L-BAL-F056-GB 1939 Index 003
Part.-No. 00700562-GB
28/35
