I651
GB
03
22
31100488
13
10 ALARMS
– When an alarm occurs, the red ALARM LED on the front will blink for as long as an alarm is active. The number of the flashes identify the type of alarm in progress (i.e. 1 flash = alarm A01, 2 flashes = alarm A02,
3 flashes = alarm A03, and so on). The meaning of the alarm is described in the Alarm table.
– As default, most of the protections are set to OFF. To enable them, it is necessary to set the relative parameter (see menu M03 PROTECTIONS).
– Some alarms cause the stop of the motor, while others are just signaled but the motor continues to run.
– The alarms reset can be configured independently as automatic or manual. In case of manual reset, the reset of the alarm must be performed by the user according to the reset mode set in P03.06.
– In automatic mode, the reset of the alarm is performed when the alarm conditions cease, according with the settings of the menu M03 PROTECTIONS.
The meaning of the properties that can be associated with the alarms is described below
–
enabled alarm
- Alarm enable. If not enabled, it’s like it does not even exist
–
retaining alarm
- This remains stored even if its cause was removed
–
global alarm
- This activates the output assigned to this function
–
stop motor
– in case of active alarm the motor is stopped
–
deceleration
– If deceleration is programmed, stops the motor with a deceleration. If the property is not enabled, the motor stops immediately with free wheel
–
auto reset
– The alarm can be reset automatically depending on the criteria defined in P03.07 and P03.08.
10.1 ALARMS PROPERTIES TABLE
The following table shows the alarm codes, with a description and the default properties of each one. The properties can be modified on the ADXNF version with LOVATO NFC App and on the ADXNP version with
LOVATO NFC App or SAM1 App or Xpress software.
On the basic version ADXNB the alarms properties are fixed according to the following table, except for the wrong phase sequence alarm (A03) which is disabled as default and can be enabled by following the
sequence described at chapter 7.1 Enabling the phase sequence control (ADXNB).
Note. The alarms from A10 to A16 are available only on the advanced version ADXNP. Refer to the table at chapter 7.PROTECTIONS to check the alarms available on each version of ADXN.
ALARM DESCRIPTION
CODE
A01 NO POWER LINE
A02 PHASE LOSS
A03 WRONG PHASE SEQUENCE
A04 FREQUENCY OUT OF LIMITS
A05 VOLTAGE OUT OF LIMITS
A06 SOFT STARTER THERMAL PROTECTION
A07 TEMPERATURE SENSOR FAULT
A08 BYPASS RELAY FAILURE
A09 SYSTEM ERROR
A10 MOTOR THERMAL OVERLOAD PROTECTION
A11 OVERCURRENT PROTECTION
A12 LOCKED ROTOR
A13 LOAD TOO LOW
A14 CURRENT ASIMMETRY
A15 STARTING TIME TOO LONG
A16 PHASE SHORTED
The properties of these alarms are fixed and cannot be modified.
NOTE. For the alarms related to the line voltage A01, A02, A03, A04 and A05, the properties 'retentive' and 'automatic reset' work according to the following logic.
– With the property 'retentive' enabled (ON):
– if the property 'automatic reset'= OFF, the alarm remains active as long as the start input ST is closed, even if the condition that generated it ceases.
– if the property 'automatic reset' = ON, if the start input ST is closed, after the delay P03.08 the alarm is reset and the soft starter performs a restart attempt. This operation is repeated up to a maximum
number of attempts specified in P03.07.
– With the property 'retentive' disabled (OFF):
– if the property 'automatic reset'= OFF, if the start input ST is closed, after a fixed delay of 30 seconds the alarm is reset and the soft starter performs a restart attempt. This operation is repeated for max
5 attempts every 30 seconds, as long as ST input is closed and the alarm is active. If the alarm conditions are still present after 5 attempts, the alarm remains active (retenitive) and it is necessary to
manually reset it according to the reset mode set in P03.06. Note. This is the mode used for the alarms from A01 to A04 of soft starters type ADXNB (cannot be modified).
– if the property 'automatic reset' = ON, if the start input ST is closed, after the delay P03.08 the alarm is reset and the soft starter performs a restart attempt. This operation is repeated up to a maximum
number of attempts specified in P03.07.
On these alarms the property stop motor is always forced to ON, independetly by the setting, because the presence of these alarm conditions is critical for the run of the motor.
Enabled
Retentive
Global
alarm
Stop
motor
Deceleration
Automatic
reset
10.2 ALARMS DESCRIPTION
CODE DESCRIPTION REASON OF THE ALARM
A01 NO POWER LINE All three phases are not present when start command given or during the motor running.
A02 PHASE LOSS One phase not present when start command given. Note. For the versions ADXNB and ADXNF the phase loss is detected only at the start command,
not during the ramps or in bypass (motor running at full voltage).
A03 WRONG PHASE SEQUENCE Phase sequence does not match the setting P03.01 (for basic version ADXNB: phase sequence different from L1-L2-L3, if enabled)
A04 FREQUENCY OUT OF LIMITS Frequency of the line voltage outside of ±5% tolerance around 50Hz or 60Hz in the instant when start command is given.
A05 VOLTAGE OUT OF LIMITS Line voltage L1-L2 lower than the threshold P03.02 for a time longer than P03.03, or line voltage higher than the threshold P03.04 for a time longer than
P03.05
A06 SOFT STARTER THERMAL PROTECTION Soft starter heatsink temperature greater than maximum allowed value
A07 TEMPERATURE SENSOR FAULT Integrated NTC temperature sensor interrupted or broken
A08 BYPASS RELAY FAILURE Bypass relay contacts did not close or open
A09 SYSTEM ERROR Internal error. Please contact Lovato Electric Technical Support
A10 MOTOR THERMAL OVERLOAD Motor thermal overload protection tripped. See the parameters P03.09-P03.10-P03.11-P03.12.
PROTECTION
A11 OVERCURRENT PROTECTION Current >600%Ie (Ie=rated soft starter current) for a time longer than 200msec during starting. Note: This alarm cannot be disabled
A12 LOCKED ROTOR Current >500%In (In=rated motor current) for a time longer than 200msec during bypass
A13 LOAD TOO LOW Motor load torque lower than the one set in P03.13 for a time longer than P03.14 during bypass
A14 CURRENT ASIMMETRY Current asymmetry greater than the threshold P03.18 for a time longer than P03.19 during the motor run
A15 STARTING TIME TOO LONG Starting time (from the start command to the bypass closure) longer than the setting P03.17
A16 PHASE SHORTED SCR in short circuit or bypass contacts welded
G
B
