Oriental motor ASD10A-K, Руководство по эксплуатации

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8 Protective functions
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8 Protective functions
This section covers the driver-protection functions and methods used to clear the
triggered function.
8.1 Descriptions of protective functions and
numbers of LED blinks
The driver is provided with functions that protect the driver from ambient
temperature increases, improper power-source or motor-cable connections, and the
occurrence of operating errors. When a protective function is triggered, the ALARM
LED on the front panel blinks, ALARM output turns OFF, and simultaneously the
actuator current is shut off in order to stop the actuator. ALARM output remains
“ON” when the driver is operating normally, then turns “OFF” when a protective
function is triggered. For details, refer to “ALARM output” on page 37.
ALARM LED blinking cycle (example: for overvoltage protection)
1 2 3 1 2 3
Interval
1.2 s
0.2 s 0.2 s
The number of ALARM LED blinks varies according to the nature of the triggered
protective function, thereby facilitating action and recovery from the abnormal
conditions causing the function to be triggered. The table below gives descriptions
of protective functions and their corresponding numbers of blinks.
Number of
ALARM
LED Blinks
Protective function Conditions
2 Overload protection When a load exceeding the maximum torque is
applied to the motor for five seconds or more.
3 Overvoltage
protection
When the driver inverter’s primary voltage exceeds
a permissible value.
4 Speed error
protection
When the actuator has not normally followed up on
pulse input.
6 Overspeed When the output table speed exceeds 270 r/min.
7 EEPROM data error When the motor parameter in the driver is
damaged.
8 Sensor error When power turns on without the connection of a
motor cable to the driver.
Continuous System error When the driver is out of order.