SME AC-M1, Manual

Page: 41 / 62

damaged
In case of such alarm follow this procedure:
1. If such alarm is present even when you turn on, turn off the system and disconnect
the power cable between the inverter and the corresponding motor.
2. Turn on the system again, then:
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If the alarm is not active and the motor wirings are correct, replace the motor
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If the alarm is still active , replace the AC-M1;
Low battery alarm:
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Alarm code : 12
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Alarm level : 3
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Alarm cause : the battery voltage level is lower than the minimum charge value
In case of such alarm, follow this procedure:
1. Check the battery level indication; if its value is below the Battery Reset Value,
recharge the battery, and check it.
2. If the battery is recharged and its voltage is correct but the display shows a
discharge value, check with the tester the battery voltage; if it is different from the
value reported on COMPACT display, call service to trim again the battery measure.
Motor current sensor alarm:
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Alarm code :
○
for drive motor: 15
○
for pump motor: 36
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Alarm level : 1
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Alarm cause : failure of current sensor
In case of such alarm, call the service to trim values, or replace the AC-M1.
Main breaker fault:
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Alarm code : 17
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Alarm level : 1
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Alarm cause : failure of the main breaker command.
In case of such alarm, follow this procedure:
1. Check the coil wirings; if they are ok, check the breaker coil resistance; if it is faulty,
PRELIMINARY VERSION 41