Vexta aStep AS Series Operating Manual page 49

If the ALARM LED is blinking
If the ALARM LED is blinking, count the number of blinks and refer to the table below:
The ALARM LED blinks in two modes: blinking in groups of between 1 and 8 times (0.2 second on and 0.2 second off)
and repeating the same number after 1.2 second each; and the continuous blinking mode.
Number of
ALARM LED Type of alarm and possible cause
Blinks
Overheat protection.
1 Driver ambient temperature exceeded
50°C (122°F).
Overload protection.
2
Overloading.
Overvoltage protection.
3 Incorrect power connection or loading
beyond the regenerative ability of the driver.
Speed error protection.
4 Overloading or incorrect speed filter
setting.
Overcurrent protection.
5
Short-circuited motor cable.
Excessive speed.
6
Excessively high operating-pulse speed.
EEPROM data error.
7
Error in driver.
Sensor error.
8
Bad motor-cable connection or open line.
System error.
Continuous
The driver is out of order.
Remedial action
Review motor's operating condition and ventilation in the
enclosure.
Reduce the motor load.
• Check power-source connections.
• Reduce load in a vertical-travel application.
Reduce load or slightly reduce the speed-filter setting.
Check motor cables and connectors to the driver.
Set the speed of the motor shaft at 5000 r/min or less.
Turn on the driver power.
If the error persists, contact the branch or sales office from
which you purchased the product and request repair.
Shut off the driver power and check the motor cable and
driver connectors. Then turn the driver power back on.
Turn the driver power on.
If the error persists, contact the branch or sales office from
which you purchased the product and request repair.
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