Error And Status Conditions; Bl: Blockage Due To Water Lack; Bp: Blockage Due To Fault Of The Pressure Sensor; Lp: Blockage Due To Low Supply Voltage (Excluding A.d. M/M 1.1 And A.d. M/T 1.0) - DAB PUMPS ACTIVE DRIVER M/M 1.1 Manual

In cases of blockage due to water lack (bL), blockage due to current overload in the electropump (oC), blockage
due to current overload in the output stages (oF), blockage due to direct short circuit between the phases of the
output terminal (SC), you may try to exit the error conditions by pressing the + and – keys simultaneously. If the
error condition remains, you must take steps to eliminate the cause of the malfunction.
In the case of excess temperature, the protection intervenes in two ways:
blockage on reaching too high a temperature,
limitation of the maximum frequency as the temperature rises.
Another type of protection is adopted on:
the power device,
the supply capacitors,
the printed circuit.
These protections intervene when a potentially dangerous temperature is reached, limiting the maximum rotation
frequency FS to small steps.
Once the alarm is over the protection is automatically disabled and normal operating conditions are restored. The
invention of one of these three protections or a combination of them may at the most decrease the frequency FS by
20%.
The three protection systems do not cause and do not generate an error message, but they keep a trace of their
intervention by generating a warning in the fault log.
If the temperature on the final output stages or on the printed circuit is not limited with this system, the blockage for
excess temperature will intervene.
During the intervention of these protections a rotation frequency FR less than the expeted one
may be displayed.
Display indication
Lt
LC
Lb
Display indication
bL
bP
LP
HP
ot
ob
oC
oF
oF/ot
SC
EC
E0...E7
F1
F3
bL : Blockage due to water lack
13.1
In conditions of zero flow the system switches off the pump. If, by mistake, a pressure set-point is set which
is higher than the maximum pressure that the electropump can supply, the system indicates "blockage due to
water lack" (bL) even if there is really no lack of water. Then you must lower the switch-off pressure to a
reasonable value that normally does not exceed 2/3 of the head of the installed electropump.
13.2 bP : Blockage due to fault of the pressure sensor
If the ACTIVE DRIVER is unable to detect the presence of the pressure sensor, the electropump remains
blocked and the error signal "bP" is given. This status begins as soon as the problem is detected and ends
automatically 10 seconds after correct conditions have been restored.
13.3 LP :Blockage due to low supply voltage (excluding A.D. M/M 1.1 and A.D. M/T 1.0)
When the line voltage at the supply terminal falls below 180V, the ACTIVE DRIVER goes into block
status due to low line voltage. This is reset only automatically when the voltage at the terminal rises
above 200V.
If the dimensions of the wiring are not suitably large, this block may occur when the electropump is
started even if higher voltages are measured with the machine in stand-by mode.
ENGLISH
Warning in the fault log
Warning due to intervention of protection system on power devices
Warning due to intervention of protection system on capacitors
Warning due to intervention of protection system on printed circuit
Error conditions

Error and status conditions

Blockage due to water lack
Blockage due to absence of pressure sensor
Blockage due to low supply voltage
Blockage due to high rectified voltage
Blockage due to overheating of the power stages
Blockage due to overheating of the printed circuit
Blockage due to current overload in the electropump motor
Blockage due to current overload in the output stages
Blockage due to current overload in the output stages with temperature of the stages
higher than 45°C
Blockage due to direct short circuit between the phases of the output terminal
Blockage due to non setting of the rated current (rC) or of the rated frequency (Fn)
Blockage due to internal error 0...7
Blockage due to input 1 status
Blockage due to input 3 status
Description
Description
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