AXOR Industries
Service Manual
MiniMagnum
TM
ver.1 rev.05/'15
43
The table below illustrates all the message errors:
3.2 Alarms
alaRm
soluTioN
al1
eepRom alarm
Error while memorising parameter to the
drive's EEPROM.
Disable the drive, try to memorise the pa-
rameter, then re-enable.
al2
overcurrent alarm
Short circuit between U, V, W or towards
earth.
Disconnect the power, verify the wiring, then
power up again.
al3
drive Temperature alarm
Heat sink temperature too high, >70°C.
Disable the drive, verify:
• the forced ventilation functioning,
• the ambient temperature,
wait until the radiator has cooled off, reset
the alarm then enable the drive.
al4
hall alarm
This alarm comes on if one or more of the hall
cell's wires are disconnected.
Disable the drive, verify the cell's wire con-
nection, reset the alarm, then enable the
drive.
al5
encoder alarm
This alarm comes on if one or more of the
encoder channels are interrupted.
Disable the drive, control the connections,
reset the alarm, then enable the drive.
If the alarm persists contact Axor.
al6
i
2
t drive alarm
The internal I
2
t function has reached the
maximum permitted. The cause could be one
of the following:
• the working cycle could be too heavy;
• a possible mechanical block;
• motor phase inversion;
• the electronic brake is not unblocked;
• the amplifier's dynamic costants: "KP",
"KI" and "KD", could create useless cur-
rent oscillation.
This does not cause the disabling of the
drive's functioning.
al7
motor Temperature alarm
Heat sink temperature too high.
This causes the opening of the Ok Relè con-
tact and the disabling of the functioning.
Disable the drive:
• control the heat sink temperature;
• decrease the dynamic constant if the
motor is vibrating. This situation causes
current oscillation and consequently the
overheating of the motor.
Wait until the motor has cooled off, reset the
alarm, then enable the drive.
al8
Regenerative Resistance alarm
The value I
2
t energy recovery has reached
the maximum allowed.
Disable the drive:
• check the AC power supply input;
• check that the working cycles are not ex-
cessive;
• verify if the motor, going at half speed,
shows the same problem.
Reset the alarm, then enable the drive.
al9
min/max voltage alarm
Minimum or maximum converter voltage.
Disable the drive, wait until the DC power
supply voltage reaches the correct threshold,
check the AC power supply input, then en-
able the drive.
al10
pre-alarm Recovery alarm
80% of the I
2
t energy recovery value has
been reached.
Check the AC power supply input and the
working cycles. This is a visual alarm, it an-
ticipates the intervention of the "Maximum
recovery" alarm.
