11
2.2 Protections
The MiniAx is equipped with a series of protections to safeguard both the drive and the motor, in case of
malfunctions.
All protections are visualized using LEDs on the front of the drive. (See the next page).
The two types of interventions are Reversible and Irreversible.
Reversible Protection Intervention:
The drive is automatically reset/restarted when the cause of intervention has been corrected.
-Current limitation
-Min max voltage
Irreversible Protection Intervention:
The drive is reset but not restarted. The power supply must be removed and the cause of intervention
eliminated, then the power supply can be replaced. *Note: A mininum amount of time must pass in order to
ensure that the drive is completely off prior to replacing the power supply.
-Over Current
-Drive thermal switch
-Missing Hall Effect Signals
2.3 L.E.D. indicators
FiveLEDs are available on the drive and they signify the following:
- (GREEN) OK Normally ON, means proper operation of the drive. When
the LED is OFF, it indicates that at least one of the drive protection functions
is active.
- (RED) IN Normally OFF,it become lit when the nominal motor I-t limit is
exceeded.
(Reversible alarm)
- (RED) ST Normally OFF. May come ON,because of a short circuit between
motor terminals and short circuit to ground.It cannot be reset and the fault
activate the memorization of the alarm.
Switch off the system,eliminate the cause and then re-start the power
supply.
- (RED) OC Normally OFF,it represents overheating of the drive heatsink.
This fault activate and memorize the alarm. To reset it is necessary to turn
off the power supply, wait until the heatsink temperature is lower, and then
re-start the power supply.
- (RED) AH Normally OFF. The light status indicate either missing Hall signals or incorrect 60° or 120°
settings.
It cannot be reset and the fault cause the memorization of the alarm. S11 is Normally (default) closed.If
Open, the alarm protection for missing Hall Effect Signals will not disable the drive.
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