Diagnostics
Instruction manual 91/121 V6.3
6.4.18 Motor Overload
The current in the motor exceeded the one set in the parameter ”Continuous service Current“ (see page 36) for a longer time than set
in the parameter ”Overload Time“ (see page 49). This alarm can be activated or deactivated using the ”Drive Fault“ menu (see page
49). For more information about this report, see paragraph ”Motor Overload Function“ on page 66.
6.4.19 Motor Overtemperature
This alarm appears if the motor is overheated, if the drive block is enabled in case of motor over-temperature and if the set time has
elapsed. motor temperature control shall be carried out using the PTC probe to be integrated into the motor under construction; it shall
be like a closed contact when the temperature range is correct and shall be like an open contact when the maximum motor temperature
is exceeded. To disable this alarm or change some signalling modes, see paragraph ”Motor temperature“ on page 62.
6.4.20 Power supply frequency error
This alarm appears when the drive detects a wrong power frequency on the three-phase power line (L1, L2, L3). In this case check the
frequency of the network which must be 50 Hz or 60 Hz.
NOTE:
This alarm can also appear in the case of mounting the three-phase filter after the contactor installed on the three-phase
supply line. The network filter MUST be installed before the contactor, as indicated in drawing 1 on page 11.
6.4.21 Presence of L1-L2-L3
This alarm appears when you have selected the power mode via DC+ and DC- terminals (see paragraph ”Power supply from“ on page
53), but the drive detects the presence of voltage on the terminals L1, L2, L3. This is a wrong situation because power the drive dir -
ectly on the DC BUS (as from drawing 2 to page 12) there must be no voltage on the terminals L1, L2, L3. So there is some setting er-
ror or electrical connection on the terminals.
6.4.22 Temper. Sens. Damaged
This alarm appears when the drive detected a fault to a temperature sensor mounted inside it: turn off the drive and notify the ALTER
technical service.
6.4.23 Three-phase supply High
This alarm appears when the three-phase/monophase power supply voltage on the L1, L2, L3 is beyond the maximum permitted (see
the drive plate). In this case, immediately remove the power supply voltage and check its value with a tester.
6.4.24 Trans board firmware wrong
If this alarm appears, it means that the optional board mounted at the X14 connector is not compatible with the drive. You can try to
remove the service voltage and after a few minutes restore it and see if the message disappears. Otherwise, notify the ALTER Tech -
nical Service.
6.4.25 Trans board missing
If this alarm appears, it means that the optional card mounted at the X14 connector was previously working but is now no longer vis -
ible to the drive. You can try to remove the service voltage and after a few minutes restore it and see if the message disappears. Other-
wise, notify the ALTER Technical Service.
6.4.26 Trans board watchdog
If this alarm appears, it means that the optional board mounted at the X14 connector does not work properly. You can try to remove
the service voltage and after a few minutes restore it and see if the message disappears. Otherwise, notify the ALTER Technical Ser-
vice.
6.4.27 Type jumper error
If this alarm appears, turn off the drive and notify the ALTER technical service.
6.4.28 Watchdog timeout
If this alarm appears, turn off the drive and notify the ALTER technical service.
6.5 Reporting messages
•
When the drive writes a reporting message, the DOK output does not change its logical state, but the drive is not enabled by
giving the DEN command.
•
The message is clearly written on the LCD display.
•
The message disappears when providing the RST command (see section on Connector X12 page 19) or by pressing one of
the buttons on the front.
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Alter Elettronica s.r.l.
