PEDROLLO M/M 8.5 Manual De Uso Y Mantenimiento página 37

OVER
The current exceeded the allowable tolerance on the current set.
CURRENT %
The inverter stops the pump, the rearm is only manual.
CURRENT
The current exceeded the module current capacity.
LIMIT
The inverter stops the pump, the rearm is only manual.
i DRY
Occurs if, in the absence of flow, the pump cannot reach the SET pressure, but can
reach at least a pre-determined percentage of the SET pressure, defined through the
parameter Pd. The inverter does not stop the pump, which continues to work with the
message "i-DRY" on the display.
DRY RUNNING
Occurs if, in the absence of flow, the pump fails to reach the pressure of the set but
does not even reach a predetermined percentage of the SET pressure, expressed by
the parameter Pd; the inverter stops the pump.
The error is reset after the time TP and the inverter re-starts in automatic mode.
LOW PRESS
Occurs if the pump is running at maximum frequency (50/60 Hz), in the presence of flow,
and the pressure doesn't reach 0.3 bar; the inverter stops the pump.
The error is reset after the time TP and the inverter re-starts in automatic mode.
a voltage drop has occurred beyond minimum operating threshold. The inverter stops the
LOW VOLTAGE
pump. The error is reset after one minute, and the inverter re-starts in automatic mode.
a voltage peak has occurred beyond maximum operating threshold. The inverter stops the
HIGH VOLTAGE
pump. The error is reset after one minute, and the inverter re-starts in automatic mode.
HIGH TEMP.
parameter not active
BOX (only T/T
mod.)
OVER TEMP.
parameter not active
BOX (only T/T
mod.)
HIGH
The module temperature has reached the first alarm threshold; the maximum working
TEMPERATURE frequency is automatically limited, but the drive continues to run, the error is reset when
the module temperature returns below 70 °C
MOD
OVER TEMP
The module temperature has reached
MOD pump, the error is reset
will restart automatically
INPUT ERROR
There has been a reversal of the power connections / output to the motor. the inverter is
locked, the error is reset by connecting the cables correctly in the terminal
COM ERROR
communication has been interrupted between the control board and the power board;
the causes could be the integrity of the cable and of the connection ports or an electronic
board fault.
PHASE ERROR
(only for models with three-phase output) lack of a phase towards the motor during
operation. The inverter stops the pump ; reset is manual only.
LOW LEVEL
this occurs when the digital input EI is configured as "WATER LEVEL" (level signal) and
there is no signal. When the signal returns, the message disappears and the inverter
operates normally again.
EXT OFF
this occurs when the digital input EI is configured as "EXT ENABLE" (control enabled
from outside) and there is no signal. When the signal returns (external enabling) the
message disappears and the inverter operates normally again.
It occurs when the supply voltage is disconnected; the capacitors are discharged, for
 OFF
security reasons, from the discharge resistors. The process takes about 10 sec
ALARMS
the second alarm
when the module temperature returns below 70 °C
37
threshold, the inverter stops the
and the drive