Alarm Description Possible solutions
A12 Address error In COMBO mode, multiple devices in
the group have the same address.
Reset mode:
• Automatic reset
• Restore the correct value of parameter Address in all the devices in
the group.
• Verify which situation triggers the alarm.
• If the alarm is triggered after a master replacement, check that the
parameter Autorestart is activated.
• Check the electrical connection between the slave unit and the mas-
ter, and the presence of possible disturbances.
A13 No communication In COMBO mode, the communication
between the slave unit and the master
has been interrupted.
Reset mode:
• Automatic reset
• Check the electrical connection between the slave unit and the mas-
ter, and the presence of possible disturbances.
• Exit the master programming menu.
• Attempt a manual reset of the alarm.
CAUTION
Keep signal cables separate and never parallel to
power cables. If it is necessary to cross them, make
sure that they cross perpendicularly.
A14 Min value alarm The value read by the analog input is
lower than the value set for the parame-
ter Min alarm value.
Reset mode:
• Automatic reset
• Check the value set for the parameter.
• Check the hydraulic causes that lead to the alarm condition.
• Check that the sensor is working properly.
A15 Keyboard fault One of the keys of the keyboard was
held down for more than 30 seconds.
Reset mode:
• Alarm reset by STOP key.
• Disconnecting the power supply
• Check that the keys are mechanically free.
A16 CPU alarm Communication error between the con-
trol part and the power part or error in
the CPU.
Reset mode:
• Automatic reset
• Check the value of the power supply voltage both under no load and
load conditions.
• Check for electrical noise from other devices connected to the sys-
tem.
• Check the integrity of the communication cable between the control
board and the power board.
A17 Brake alarm In devices equipped with brakes, it indi-
cates the achievement of the maximum
energy that the braking resistor can
withstand.
Reset mode:
• Automatic reset if parameter Autores-
tart = ON
• Check the possible solutions for the alarm A06 Over voltage .
A19 Out of step With parameter Motor type set to Syn-
chronous PM, the loss of motor control
occurs.
Reset mode:
• Automatic reset with a 3-minute de-
lay.
• Check the possible solutions for the alarm A01 Overcurrent motor
A20 Input phase loss Absence of a power supply phase.
Reset mode:
• Automatic reset if parameter Autores-
tart = ON
• Check that all three power phases are present.
• Check the balance of the power supply phases.
14. Alarms (version without display)
WARNING
Immediate remedies must be implemented in case of alarms to safeguard the integrity of the device
itself and of the system in which it is installed.
MIDA
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