Connection of EC fan motor, diagnostics/faults and configuration of speed control |
8-2
8.2
Diagnostics/faults visualised by LED on the ECbluefin motor
10.2
Status output with
fl
ashing code
Vision panel for status LED in the case of plastic cover design
22.06.2012
v_flash_expl_red_1_x.VSD
3 x
2 x
ON
OFF
4 x
5 x
6 x
1 x
LED Code
Relays
K1*
Cause
Explanation
Reaction of Controller
Adjustment
OFF
0
No line voltage
Line voltage available?
Unit switch OFF and automatically ON when the
voltage has been restored
ON
1
Normal operation without fault
1 x
1
No enable = OFF
Terminals
“
D1
”
-
“
24 V
”
(Digital In 1) not bridged.
Switch OFF by external contact (see digital input).
2 x
1
Temperature management active
The device has an active temperature manage-
ment to protect it from damage due to too high
inside temperatures. In case of a temperature rise
above the
fi
xed limits, the modulation is reduced
linearly.
With a drop in temperature the modulation rises
again llinear.
Check installation of the device and cooling of the
controller.
4 x
0
Line failure
(only for 3 ~ types)
The device is provided with a built-in phase-mon-
itoring function for the mains supply. In the event
of a mains interruption (failure of a fuse or mains
phase) the unit switches off after a delay (approx.
200 ms).
Only functioning with an adequate load for the
controller.
Following a shutoff, a startup attempt is made
after approximately 15 seconds, if the voltage
supply is high enough. This keeps occurring until
all 3 supply phases are available again.
Check power supply
5 x
0
Motor blocked
If after 8 seconds of commutation no speed is
measured > 0, the fault
“
Motor blocked
”
is re-
leased.
EC-Controller switches off, renewed attempt to
start after about 2.5 sec.
Final shutoff, when fourth starting test fails.
It is then necessary to have a reset by disconnect-
ing the line voltage.
Check if motor is freely rotatable.
6 x
0
Failure power module
Short circuit to earth or short circuit of the motor
winding.
EC-Controller switches off, renewed attempt to
start after about 60 sec. see code 9.
Final shutoff, if - following a second starting test
–
a second fault detection is detected within a peri-
od of 60 seconds.
It is then necessary to have a reset by disconnect-
ing the line voltage.
7 x
0
Intermediate undervoltage
If the DC-link voltage drops below a speci
fi
ed limit
the device will switch off.
If the DC-link voltage rises above the limit within
75 seconds, then the cotroller will attempt to start.
Should the DC-link voltage stay for more than
75 seconds below the limit, the device will switch
off with a fault message.
8 x
0
Intermediate circuit overvoltage
If the DC-link voltage increases above a speci
fi
ed
limit, the motor will switch off.
Reason for excessively high input voltage or alter-
nator motor operation.
If the DC-link voltage drops below the limit within
75 seconds, then the cotroller will attempt to start.
Should the DC-link voltage stay above the limit for
more than 75 seconds, the device will switch off
with a fault message.
Assembly instructions
ECblue BASIC-MODBUS, ECblue BASIC
Diagnostics / Faults
L-BAL-F078D-GB 1939 Index 003
Part.-No.
63/78
output |
