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7.2
Indication of the operating condition over A1 and A2
Via the output
“
A1 Status Out OC
”
a status indication is
possible (activation of a LED
Installation: Output A1
Status Out OC.
ON
:
“
A1 Status Out OC
”
= GND potential
A1 Status Out OC with
fl
ash code
11.02.2009
v_flash_explain.VSD
3 x
2 x
ON
OFF
4 x
5 x
6 x
1 x
7 x
8 x
9 x
Via the output
“
A2 Operation Out OC
”
an operating
indication is possible (activation of a LED
Installa-
tion: Output A2 Operation Out OC.
ON
:
“
A2 Status Out OC
”
= GND potential
A2 Operation Out OC
14.02.2011
v_on_off_explain.VSD
ON
OFF
A1 Status Out OC
off GND = ON
A2 Operation Out
OC *
off GND = ON
Cause
Explanation
Reaction of Controller
Adjustment
OFF
OFF
No line voltage
Line voltage available?
Unit switch OFF and automatically ON
when the voltage has been restored
ON
OFF
Normal operation without fault
1 x
OFF
No enable = OFF
Switch off by Bus
Description Communication ECblue
MODBUS
2 x
OFF
Temperature management active
The device has an active temperature
management 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.
To prevent the complete system being
switched off externally (in this operation
permissible for the controller) in case of
reduced operation due to too high an inter-
nal temperature, no fault message is sent
via the A2.
With a drop in temperature the modula-
tion rises again llinear.
Check installation of the device and
cooling of the controller.
3 x
ON
HALL-IC
Incorrect signal from the Hall-ICs, error in
the commutation.
Internal plug connection faulty.
The controller switches the motor off.
Automatic restart if no faults are recog-
nised.
Replace fan / motor
5 x
ON
Motor blocked
If after 8 seconds of commutation no
speed is measured > 0 the fault
“
Motor
blocked
”
is released.
EC-Controller switches off, renewed at-
tempt to start after about 2.5 sec.
Final shutoff, when fourth starting test
fails.
It is then necessary to have a reset by
disconnecting the line voltage.
Check if motor is freely rotatable.
Assembly instructions
ECblue
Diagnostics / Faults
L-BAL-F056-GB 1939 Index 003
Part.-No. 00700562-GB
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